THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep [1],[2].,.,, [3],[4]., 4 MI- MO(Multiple Input

Save this PDF as:
Size: px
Start display at page:

Download "THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep [1],[2].,.,, [3],[4]., 4 MI- MO(Multiple Input"

Transcription

1 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 26(9), ISSN (Print) ISSN X (Online) MIMO Broadband MIMO Antenna Using the Metal Cover Radiator 김병철 박민길 손태호 ByungChul Kim Minkil Park Taeho Son 요약 MIMO, PCB. IFA. IFA. LTE class 13/ LTE class 14/ CDMA/ GSM900/ DCS/ PCS/ W-CDMA/ LTE class 40/WiFi VSWR 3:1. MIMO , dbi %. Abstract In this paper, a broadband MIMO antenna using the metal cover that is one of the antenna radiators is designed and implemented on the PCB. The proposed antenna consists of a monopole and an IFA fed by the coupling structure and a metal cover radiator. Therefore, a monopole and an IFA with a metal cover radiator operate simultaneously through a hybrid form of operation. The antenna satisfies VSWR 3:1 at the bands of LTE class 13, class 14, CDMA, GSM900, DCS, PCS, WCDMA, LTE class 40 and WiFi. The maximum ECC of diagonally fed MIMO antenna is The measured average gain and efficiency were dbi and % over the desire bands, respectively. Key words: MIMO Antenna, Metal Cover, Monopole, IFA, ECC. 서론, (cover) (metal)..,.. PIFA(Planar Inverted F Antenna) IFA(Inverted F Antenna) (hybrid) 2015 ( ) ( ). (Department of IT Engineering, Soonchunhyang University) Manuscript received July 1, 2015 ; Revised September 7, 2015 ; Accepted September 11, (ID No S) Corresponding Author: Taeho Son ( c Copyright The Korean Institute of Electromagnetic Engineering and Science. All Rights Reserved. 769

2 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep [1],[2].,.,, [3],[4]., 4 MI- MO(Multiple Input Multiple Output),. MIMO (Envelop Correlation Coefficient, ECC) [5]. [6] [9] [10],[11]. PCB, MI- MO. MIMO. LTE class 13( MHz), LTE class 14( MHz), CDMA( MHz), GSM( MHz), DCS(1,710 1,880 MHz), PCS(1,750 1,910 MHz), WCDMA(1,920 2,170 MHz), LTE class 40(2,300 2,400 MHz), WiFi(2,400 2,499 MHz) 9, VSWR 3:1. 3D EM Ansoft HFSS. FR4, network analyzer MTG,.. 안테나구조 1(a). ( ) 4.4, (t) 0.8 mm FR mm 3, mm Ω CPWG(Co Planar Waveguide with Ground). MIMO (a) (a) Front view (b) (b) Assembling of the metal cover (c) (c) Feeding for the metal cover 그림 1. Fig. 1. Structure of the proposed antenna. 770

3 MIMO 그림 2. Fig. 2. Structure of the main antenna.. 1(a), mm 2. 1(b).. 5 mm. 1(c). 5 mm,.,., VSWR L VSWR. L 10 mm 18 mm 4 mm VSWR., L 18 mm VSWR 3:1 LTE class 13, 14. 안테나설계및파라미터분석 2. IFA.,. IFA 2. IFA short stub open stub. IFA 0.4 mm. 1, IFA. 3 VSWR. VSWR,. 그림 3. VSWR Fig. 3. Comparison of VSWR between the metal cover connected and disconnected. 그림 4. L VSWR Fig. 4. Variance of VSWR as a function of the length L. 771

4 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep 설계된 제안 안테나의 최적값 변수 L 주 안테나 L 표 1. Table 1. Optimum design lengths for proposed antenna. 1 길이(mm) 가지 변수에 대한 VSWR 값의 토대로 설계된 안테나의 최적 설계 값은 표 1과 같으며, 나머지 길이에 대한 제원 은 그림 2에 표기하였다. 그림 6은 안테나의 방사 소자인 주 안테나와 메탈 커버 가 안테나로 동작하고 있음을 볼 수 있는 전류분포를 나 타낸 그림이다. 낮은 주파수 대역인 960 MHz 및 높은 주 파수 대역인 2,170 MHz에서의 전류분포는 3가지 방사 소 자가 연속적인 전류방향으로 잘 동작하고 있음을 보여주 고 있다. Ⅳ. 안테나 제작 및 결과 길이 에 따른 변화 그림 5. L1 VSWR Fig. 5. Variance of VSWR as a function of the length L1. 수 있다. 그림 5는 IFA의 open stub인 L 의 길이 변화에 따른 VSWR 변화를 나타낸 것이다. L 길이를 7 mm에서 11 mm까지 2 mm씩 늘려가서 VSWR 특성을 비교하였다. 그 림에서 보듯이 L 값이 11 mm일 때 GHz 대역이 좋아짐을 알 수 있다. 본 제안 안테나의 IFA open stub은 높은 주파수 대역에 영향을 줌을 볼 수 있다. 위와 같이 (a) 960 MHz 안테나 전류분포 (b) 2,170 MHz 그림 6. Fig. 6. Current distribution on the antenna at frequency. 772 그림 7은 그림 1(a)의 시뮬레이션 기반으로 설계한 제 안 안테나를 FR4 기판에 구현한 모습이다. 메탈 커버는 동판을 사용하여 제작하였다. 그림 8은 구현된 안테나에 대한 측정 VSWR을 시뮬레 이션 결과와 비교한 그림이다. 측정결과, LTE class 13/ LTE class 14/ CDMA/ GSM의 낮은 주파수 대역에서 2.5: 1 이하의 VSWR 특성을 보였고, DCS/ PCS/ WCDMA/ LTE class 40/ WiFi의 높은 주파수 대역에서 3:1 이하의 특성을 보이고 있다. 측정 결과는 대역이 조금 넓어진 것 을 제외하면 시뮬레이션 결과와 잘 일치하고 있다. 그림 9는 MIMO 안테나의 특성인 상, 하 안테나 간 분 리도를 나타낸 그림이다. 측정 결과는 모든 대역에서 8 구현된 안테나의 사진 그림 7. Fig. 7. Photo of the implemented antenna.

5 메탈 커버를 방사소자로 이용한 광대역 MIMO 안테나 측정 제안 안테나의 포락선 상관계수 그림 8. VSWR Fig. 8. Measured VSWR. 그림 10. Fig. 10. ECC of the proposed antenna. 분리도 측정 그림 9. Fig. 9. Isolation measurement. (a) LTE class 13, 14/ CDMA/ GSM 미만으로 시뮬레이션과 유사한 양호한 결과를 보이고 있다. db (1) 그림 10은 MIMO 안테나에서 데이터 통신을 위해 필요 한 특성인 ECC이다. ECC는 MIMO 안테나에서 각 안테 나에 도달하는 RF 신호의 전파경로에 대한 영향을 알 수 있는 지표이다. ECC의 계수가 0.5 미만일 때 안테나에서 다이버시티 이득이 얻어지게 되며, 0에 가까울수록 양호 한 MIMO 시스템 성능을 나타냄을 뜻한다. ECC의 산출은 식 (1)과 같은 S-parameter 데이터에 의 [12] (b) DCS/ PCS/ W-CDMA/ LTE class 40/ WiFi 측정된 면 패턴 그림 11. H Fig. 11. Measured H plane patterns. 773

6 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep 표 2. Table 2. Radiation efficiencies and the average gains of the proposed antenna. (a) LTE class 13, 14/ CDMA/ GSM (b) DCS/ PCS/ W-CDMA/ LTE class 40/ WiFi 그림 Fig. 12. Measured 3-dimensional radiation patterns.,. (1). 10, 0.2 ECC. 11 MTG H. 11(a), (b). (null). 3 3D 12. (sphere). 2,. 1 2, Eff., Avg.. 2, f [MHz] Eff.[%] Avg.[dBi] Eff.[%] Avg.[dBi] , , , , , , dbi %, dbi % dbi %, dbi %. 2,.. 결론 MIMO,. 0.8 mm FR4, MIMO., IFA. LTE class 13/ LTE class 14/ CDMA/ GSM/ DCS/ PCS/ W-CDMA/ LTE class 40/WiFi 9 VSWR 3 :

7 MIMO MIMO 8 db, ECC MTG LTE class 13 GSM dbi %., DCS WiFi dbi %..,. References [1],,,, " 6 MIMO ",, 26(4), pp , [2],, " PIFA IFA ", ITS, 10(4), pp , [3],,, " MIMO ",, 26(3), pp , [4],, " ", ITS, 10(2), pp , [5],,,, " MI- MO ",, 48(2), pp , [6] Xing Zhao, Kyeol Kwon, and Jaehoon Choi, "MIMO antenna using resonance of ground planes for 4G mobile application", Journal of Electromagnetic Engineering and Science, vol. 13, no. 1, pp , Mar [7],, ", ", ITS, 13(2), pp , [8] Xing Zhao, Jaehoon Choi, "Multiband MIMO antenna for 4G mobile terminal", Proceedings on the APMC2013, pp , Nov [9],, "LTE ",, 22(7), pp , [10] Seungmin Woo, Jisoo Baek, Dogu Kang, Jinpil Tak, and Jaehoon Choi, "A compact UWB MIMO antenna with enhanced isolation for WBAN applications", Proceedings of ISAP 2014, pp , Dec [11] A. Toktas, A. Akdagli, "Wideband MIMO Antenna with enhanced isolation for LTE, WiMAX and WLAN mobile handsets", IET Electronic Letters, vol. 50, Issue 10, pp , May [12] Constantinos Votis, George Tatsis, and Panos Kostarakis, "Envelope correlation parameter measurements in a MI- MO antenna array configuration", Int. J. Communications, Network and System Sciences, pp , Apr

8 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep 김병 철 년 2월: 순천향대학교 정보통신공학 과 (공학사) 2014년 3월 현재: 순천향대학교 정보통 신공학과 석사과정 [주 관심분야] 안테나 및 전자파 이론, 휴 대폰 2014 박민 길 년 2월: 순천향대학교 정보통신공학 과 (공학사) 2012년 2월: 순천향대학교 정보통신공학 과 (공학석사) 2012년 3월 현재: 순천향대학교 정보통 신공학과 박사과정 [주 관심분야] 휴대폰, RFID 및 전장용 안 2010 테나 설계 776 손태 호 년 2월: 한양대학교 전자통신공학과 공학사) 년 2월: 한양대학교 전자통신공학과 공학석사) 년 2월: 한양대학교 전자통신공학과 공학박사) 년 1987년: 금성정밀(주) 중앙연구 소 선임연구원 1980년 1981년: 영국 Ferranti사 연구원 1992년 1994년: 천문우주연구원 객원연구원 1999년 2000년: 한국 ITS학회 회장 2002년 현재: (주)에스비텔콤, (주)하이트랙스, (주)스카이크로 스 기술고문 1990년 현재: 순천향대학교 정보통신공학과 교수 [주 관심분야] 위성통신, 휴대폰 안테나설계, 자동차용 전장품 개발 1979 ( 1986 ( 1990 ( 1978

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Mar.; 26(3),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Mar.; 26(3), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 215 Mar.; 26(3), 248 256. http://dx.doi.org/1.5515/kjkiees.215.26.3.248 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Metal

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Apr.; 26(4),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Apr.; 26(4), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Apr.; 26(4), 357 364. http://dx.doi.org/10.5515/kjkiees.2015.26.4.357 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) 6 MIMO

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jun.; 27(6),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jun.; 27(6), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Jun.; 27(6), 495 503. http://dx.doi.org/10.5515/kjkiees.2016.27.6.495 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Design

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Mar.; 28(3),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Mar.; 28(3), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2017 Mar.; 28(3), 163 169. http://dx.doi.org/10.5515/kjkiees.2017.28.3.163 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) PCB

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 29, no. 10, Oct ,,. 0.5 %.., cm mm FR4 (ε r =4.4)

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 29, no. 10, Oct ,,. 0.5 %.., cm mm FR4 (ε r =4.4) THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 Oct.; 29(10), 799 804. http://dx.doi.org/10.5515/kjkiees.2018.29.10.799 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Method

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Feb.; 29(2), IS

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Feb.; 29(2), IS THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 Feb.; 29(2), 93 98. http://dx.doi.org/10.5515/kjkiees.2018.29.2.93 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) UHF-HF

More information

04 김영규.hwp

04 김영규.hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 214 Nov.; 25(11), 1121 1127. http://dx.doi.org/1.5515/kjkiees.214.25.11.1121 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Planar

More information

04 최진규.hwp

04 최진규.hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Aug.; 26(8), 710717. http://dx.doi.org/10.5515/kjkiees.2015.26.8.710 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) RF ESPAR

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 26(11),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 26(11), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Nov.; 26(11), 985991. http://dx.doi.org/10.5515/kjkiees.2015.26.11.985 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Analysis

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Dec.; 27(12),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Dec.; 27(12), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Dec.; 27(12), 1036 1043. http://dx.doi.org/10.5515/kjkiees.2016.27.12.1036 ISSN 1226-3133 (Print) ISSN 2288-226X (Online)

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Mar.; 25(3),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Mar.; 25(3), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Mar.; 25(3), 304310. http://dx.doi.org/10.5515/kjkiees.2014.25.3.304 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Analysis

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jun.; 27(6),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jun.; 27(6), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Jun.; 276), 504511. http://dx.doi.org/10.5515/kjkiees.2016.27.6.504 ISSN 1226-3133 Print)ISSN 2288-226X Online) Near-Field

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 30(9),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 30(9), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2019 Sep.; 30(9), 712 717. http://dx.doi.org/10.5515/kjkiees.2019.30.9.712 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) MOS

More information

, V2N(Vehicle to Nomadic Device) [3]., [4],[5]., V2V(Vehicle to Vehicle) V2I (Vehicle to Infrastructure) IEEE 82.11p WAVE (Wireless Access in Vehicula

, V2N(Vehicle to Nomadic Device) [3]., [4],[5]., V2V(Vehicle to Vehicle) V2I (Vehicle to Infrastructure) IEEE 82.11p WAVE (Wireless Access in Vehicula THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 215 Jul.; 26(7), 66 612. http://dx.doi.org/1.5515/kjkiees.215.26.7.66 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Dual-Band

More information

04 박영주.hwp

04 박영주.hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 216 Mar.; 27(3), 253 26. http://dx.doi.org/1.5515/kjkiees.216.27.3.253 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) LPDA Design

More information

RRH Class-J 5G [2].,. LTE 3G [3]. RRH, W-CDMA(Wideband Code Division Multiple Access), 3G, LTE. RRH RF, RF. 1 RRH, CPRI(Common Public Radio Interface)

RRH Class-J 5G [2].,. LTE 3G [3]. RRH, W-CDMA(Wideband Code Division Multiple Access), 3G, LTE. RRH RF, RF. 1 RRH, CPRI(Common Public Radio Interface) THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Mar.; 26(3), 276 282. http://dx.doi.org/10.5515/kjkiees.2015.26.3.276 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) RRH

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jan.; 26(1),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jan.; 26(1), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Jan.; 26(1), 113118. http://dx.doi.org/10.5515/kjkiees.2015.26.1.113 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) A Retro-Directive

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 26(10),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 26(10), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Sep.; 26(10), 876 884. http://dx.doi.org/10.5515/kjkiees.2015.26.10.876 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Design

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jul.; 27(7),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jul.; 27(7), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Jul.; 27(7), 625634. http://dx.doi.org/10.5515/kjkiees.2016.27.7.625 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Near-Field

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep GHz 10 W Doherty. [4]. Doherty. Doherty, C

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep GHz 10 W Doherty. [4]. Doherty. Doherty, C THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Sep.; 26(9), 783 789. http://dx.doi.org/10.5515/kjkiees.2015.26.9.783 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) GaN-HEMT

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 29, no. 10, Oct , EBG. [4],[5],. double split ring resonator (D

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 29, no. 10, Oct , EBG. [4],[5],. double split ring resonator (D THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 Oct.; 29(10), 739 744. http://dx.doi.org/10.5515/kjkiees.2018.29.10.739 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) DSRR

More information

05 목차(페이지 1,2).hwp

05 목차(페이지 1,2).hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Oct.; 25(10), 10771086. http://dx.doi.org/10.5515/kjkiees.2014.25.10.1077 ISSN 1226-3133 (Print)ISSN 2288-226X (Online)

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 28, no. 4, Apr (planar resonator) (radiator) [2] [4].., (cond

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 28, no. 4, Apr (planar resonator) (radiator) [2] [4].., (cond THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2017 Apr.; 28(4), 279 285. http://dx.doi.org/10.5515/kjkiees.2017.28.4.279 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) A Study

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Dec.; 26(12),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Dec.; 26(12), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Dec.; 26(12), 1044 1049. http://dx.doi.org/10.5515/kjkiees.2015.26.12.1044 ISSN 1226-3133 (Print) ISSN 2288-226X (Online)

More information

PCB ACF 77 GHz. X,,.,. (dip brazing), (diffusion bonding), (electroforming),, [1],[2].. PCB(Printed Circuit Board), (anisotropic conductive film: ACF)

PCB ACF 77 GHz. X,,.,. (dip brazing), (diffusion bonding), (electroforming),, [1],[2].. PCB(Printed Circuit Board), (anisotropic conductive film: ACF) THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 Oct.; 29(10), 752 757. http://dx.doi.org/10.5515/kjkiees.2018.29.10.752 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) PCB

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 28, no. 9, Sep [1]. RFID.,,,,,,, /,,, (,,,, ) [2] [4].., ( 99

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 28, no. 9, Sep [1]. RFID.,,,,,,, /,,, (,,,, ) [2] [4].., ( 99 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2017 Sep.; 28(9), 679 684. http://dx.doi.org/10.5515/kjkiees.2017.28.9.679 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) UHF

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 27(9),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 27(9), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Sep.; 27(9), 775 782. http://dx.doi.org/10.5515/kjkiees.2016.27.9.775 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) GPS

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 29, no. 6, Jun Rate). STAP(Space-Time Adaptive Processing)., -

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 29, no. 6, Jun Rate). STAP(Space-Time Adaptive Processing)., - THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 Jun.; 29(6), 457463. http://dx.doi.org/10.5515/kjkiees.2018.29.6.457 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Sigma-Delta

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 26(10),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 26(10), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Sep.; 26(10), 907 913. http://dx.doi.org/10.5515/kjkiees.2015.26.10.907 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Prediction

More information

11 함범철.hwp

11 함범철.hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2012 Aug.; 23(8), 958 966. http://dx.doi.org/10.5515/kjkiees.2012.23.8.958 ISSN 1226-3133 (Print) LTCC Bluetooth/WiFi A Bluetooth/WiFi

More information

인문사회과학기술융합학회

인문사회과학기술융합학회 Vol.5, No.5, October (2015), pp.471-479 http://dx.doi.org/10.14257/ajmahs.2015.10.50 스마트온실을 위한 가상 외부기상측정시스템 개발 한새론 1), 이재수 2), 홍영기 3), 김국환 4), 김성기 5), 김상철 6) Development of Virtual Ambient Weather Measurement

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jan.; 26(1), IS

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jan.; 26(1), IS THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Jan.; 26(1), 54 62. http://dx.doi.org/10.5515/kjkiees.2015.26.1.54 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Design

More information

韓國電磁波學會論文誌第 21 卷第 9 號 2010 年 9 月. PCS(Personal Communication Service), WCDMA(Wideband Code Division Multiple Access), WiBro(Wireless Broadband),, (dua

韓國電磁波學會論文誌第 21 卷第 9 號 2010 年 9 月. PCS(Personal Communication Service), WCDMA(Wideband Code Division Multiple Access), WiBro(Wireless Broadband),, (dua 韓國電磁波學會論文誌第 21 卷第 9 號 2010 年 9 月論文 2010-21-9-13 Design of Broadband Polarization Diversity Antenna for Mobile Base Stations 서인종 조인호 이천희 정진우 이현진 임영석 Injong Seo Inho Cho Cheonhee Lee Jinwoo Jung* Hyeonjin

More information

24 GHz 1Tx 2Rx FMCW ADAS(Advanced Driver Assistance System).,,,. 24 GHz,, [1] [4]. 65-nm CMOS FMCW 24 GHz FMCW.. 송수신기설계 1 1Tx 2Rx FMCW (Local Oscillat

24 GHz 1Tx 2Rx FMCW ADAS(Advanced Driver Assistance System).,,,. 24 GHz,, [1] [4]. 65-nm CMOS FMCW 24 GHz FMCW.. 송수신기설계 1 1Tx 2Rx FMCW (Local Oscillat THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 Oct.; 29(10), 758 765. http://dx.doi.org/10.5515/kjkiees.2018.29.10.758 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) 24

More information

03 장태헌.hwp

03 장태헌.hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2013 Aug.; 24(8), 772 780. http://dx.doi.org/10.5515/kjkiees.2013.24.8.772 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) HEMP

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Oct.; 27(10),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Oct.; 27(10), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Oct.; 27(10), 935 940. http://dx.doi.org/10.5515/kjkiees.2016.27.10.935 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Directed

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Oct.; 27(10),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Oct.; 27(10), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Oct.; 27(10), 926 934. http://dx.doi.org/10.5515/kjkiees.2016.27.10.926 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Multi-Function

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jul.; 27(7),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jul.; 27(7), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 16 Jul.; 27(7), 64662. http://dx.doi.org/./kjkiees.16.27.7.646 ISSN 1226-3133 (Print)ISSN 2288-226 (Online) 2D Microwave Image

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 3, Mar (NFC: non-foster Circuit).,. (non-foster match

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 3, Mar (NFC: non-foster Circuit).,. (non-foster match THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Mar.; 26(3), 283 291. http://dx.doi.org/10.5515/kjkiees.2015.26.3.283 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Negative

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jan.; 27(1), ISSN

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jan.; 27(1), ISSN THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 216 Jan.; 27(1), 17. http://dx.doi.org/1.5515/kjkiees.216.27.1.1 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Switch 1.5 GHz

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Mar.; 30(3),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Mar.; 30(3), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2019 Mar.; 30(3), 223 228. http://dx.doi.org/10.5515/kjkiees.2019.30.3.223 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Analysis

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 8, Aug [3]. ±90,.,,,, 5,,., 0.01, 0.016, 99 %... 선형간섭

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 8, Aug [3]. ±90,.,,,, 5,,., 0.01, 0.016, 99 %... 선형간섭 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Aug.; 27(8), 693700. http://dx.doi.org/10.5515/kjkiees.2016.27.8.693 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Design

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE May; 26(5),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE May; 26(5), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 May; 26(5), 483 491. http://dx.doi.org/10.5515/kjkiees.2015.26.5.483 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) TACAN

More information

09권오설_ok.hwp

09권오설_ok.hwp (JBE Vol. 19, No. 5, September 2014) (Regular Paper) 19 5, 2014 9 (JBE Vol. 19, No. 5, September 2014) http://dx.doi.org/10.5909/jbe.2014.19.5.656 ISSN 2287-9137 (Online) ISSN 1226-7953 (Print) a) Reduction

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Aug.; 27(8),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Aug.; 27(8), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Aug.; 27(8), 709 716. http://dx.doi.org/10.5515/kjkiees.2016.27.8.709 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Development

More information

01 주은만.hwp

01 주은만.hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Feb.; 25(2), 137 148. http://dx.doi.org/10.5515/kjkiees.2014.25.2.137 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) UWB

More information

<35335FBCDBC7D1C1A42DB8E2B8AEBDBAC5CDC0C720C0FCB1E2C0FB20C6AFBCBA20BAD0BCAE2E687770>

<35335FBCDBC7D1C1A42DB8E2B8AEBDBAC5CDC0C720C0FCB1E2C0FB20C6AFBCBA20BAD0BCAE2E687770> Journal of the Korea Academia-Industrial cooperation Society Vol. 15, No. 2 pp. 1051-1058, 2014 http://dx.doi.org/10.5762/kais.2014.15.2.1051 멤리스터의 전기적 특성 분석을 위한 PSPICE 회로 해석 김부강 1, 박호종 2, 박용수 3, 송한정 1*

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 26(11),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 26(11), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Nov.; 26(11), 978 984. http://dx.doi.org/10.5515/kjkiees.2015.26.11.978 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Transceiver

More information

. 서론,, [1]., PLL.,., SiGe, CMOS SiGe CMOS [2],[3].,,. CMOS,.. 동적주파수분할기동작조건분석 3, Miller injection-locked, static. injection-locked static [4]., 1/n 그림

. 서론,, [1]., PLL.,., SiGe, CMOS SiGe CMOS [2],[3].,,. CMOS,.. 동적주파수분할기동작조건분석 3, Miller injection-locked, static. injection-locked static [4]., 1/n 그림 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Feb.; 27(2), 170175. http://dx.doi.org/10.5515/kjkiees.2016.27.2.170 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Analysis

More information

09È«¼®¿µ 5~152s

09È«¼®¿µ5~152s Korean Journal of Remote Sensing, Vol.23, No.2, 2007, pp.45~52 Measurement of Backscattering Coefficients of Rice Canopy Using a Ground Polarimetric Scatterometer System Suk-Young Hong*, Jin-Young Hong**,

More information

DBPIA-NURIMEDIA

DBPIA-NURIMEDIA Journal of the Korea Institute of Information and Communication Engineering 윤중한 * Design and Manufacture of CPW-fed Two Arc-shaped Antenna for WLAN Applications Joong-Han Yoon * Department of Electron

More information

Preliminary spec(K93,K62_Chip_081118).xls

Preliminary spec(K93,K62_Chip_081118).xls 2.4GHz Antenna K93- Series KMA93A2450X-M01 Antenna mulilayer Preliminary Spec. Features LTCC Based designs Monolithic SMD with small, low-profile and light-weight type Wide bandwidth Size : 9 x 3 x 1.0mm

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Feb.; 28(2),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Feb.; 28(2), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2017 Feb.; 28(2), 129138. http://dx.doi.org/10.5515/kjkiees.2017.28.2.129 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) PT- Doppler

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE May; 27(5),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE May; 27(5), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 May; 27(5), 454462. http://dx.doi.org/10.5515/kjkiees.2016.27.5.454 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Research

More information

. /. / 2-way / Corporate, 2-way / /,. Corporate / 1/4, 6 18 GHz 3, Corporate. (a) Corporate (a) Corporate power combining structure (b) (b) Spatial po

. /. / 2-way / Corporate, 2-way / /,. Corporate / 1/4, 6 18 GHz 3, Corporate. (a) Corporate (a) Corporate power combining structure (b) (b) Spatial po THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2017 Apr.; 28(4), 286 297. http://dx.doi.org/10.5515/kjkiees.2017.28.4.286 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Development

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 12, Dec ,. VHF,, [1],[2].,.,,. [3] [9]., VHF.,. VHF.. 안

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 12, Dec ,. VHF,, [1],[2].,.,,. [3] [9]., VHF.,. VHF.. 안 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Dec.; 27(12), 1027 1035. http://dx.doi.org/10.5515/kjkiees.2016.27.12.1027 ISSN 1226-3133 (Print) ISSN 2288-226X (Online)

More information

<313630313032C6AFC1FD28B1C7C7F5C1DF292E687770>

<313630313032C6AFC1FD28B1C7C7F5C1DF292E687770> 양성자가속기연구센터 양성자가속기 개발 및 운영현황 DOI: 10.3938/PhiT.25.001 권혁중 김한성 Development and Operational Status of the Proton Linear Accelerator at the KOMAC Hyeok-Jung KWON and Han-Sung KIM A 100-MeV proton linear accelerator

More information

(JBE Vol. 21, No. 1, January 2016) (Regular Paper) 21 1, (JBE Vol. 21, No. 1, January 2016) ISSN 228

(JBE Vol. 21, No. 1, January 2016) (Regular Paper) 21 1, (JBE Vol. 21, No. 1, January 2016)   ISSN 228 (JBE Vol. 1, No. 1, January 016) (Regular Paper) 1 1, 016 1 (JBE Vol. 1, No. 1, January 016) http://dx.doi.org/10.5909/jbe.016.1.1.60 ISSN 87-9137 (Online) ISSN 16-7953 (Print) a), a) An Efficient Method

More information

(2002).hwp

(2002).hwp - Conical-Cylindrical Compound Monopole Antenna 2006 2 - Conical Cylindrical Compound Monopole Antenna. 2006 2 . 2006 2 Abstract List of tables List of figures. 1. 4 2.1 4 2.2 5 2.3 End cap 20 2.4 21.

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Aug.; 30(8),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Aug.; 30(8), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2019 Aug.; 30(8), 629639. http://dx.doi.org/10.5515/kjkiees.2019.30.8.629 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Analysis

More information

,.. 2, , 3.. 본론 2-1 가상잡음신호원생성원리, [8].,. 1.,,. 4 km (13.3 μs).,. 2 (PN code: Pseudo Noise co- 그림 2. Fig. 2. Pseudo noise code. de). (LFSR: Line

,.. 2, , 3.. 본론 2-1 가상잡음신호원생성원리, [8].,. 1.,,. 4 km (13.3 μs).,. 2 (PN code: Pseudo Noise co- 그림 2. Fig. 2. Pseudo noise code. de). (LFSR: Line THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Jun; 26(6), 546 554. http://dx.doi.org/10.5515/kjkiees.2015.26.6.546 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Proof-of-Concept

More information

07 최운성.hwp

07 최운성.hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2013 Nov.; 24(11), 1081 1090. http://dx.doi.org/10.5515/kjkiees.2013.24.11.1081 ISSN 1226-3133 (Print) ISSN 2288-226X (Online)

More information

¼º¿øÁø Ãâ·Â-1

¼º¿øÁø Ãâ·Â-1 Bandwidth Efficiency Analysis for Cooperative Transmission Methods of Downlink Signals using Distributed Antennas In this paper, the performance of cooperative transmission methods for downlink transmission

More information

(2002).hwp

(2002).hwp 工學碩士學位論文 광대역육각형평판모노폴안테나 A Wideband Hexagonal Plate Monopole Antenna 忠北大學校大學院 電波工學科電波通信工學專攻 李相吉 2006 年 2 月 工學碩士學位論文 광대역육각형평판모노폴안테나 A Wideband Hexagonal Plate Monopole Antenna 指導敎授 安炳哲 電波工學科電波通信工學專攻 李相吉

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jul.; 30(7),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jul.; 30(7), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2019 Jul.; 30(7), 566 572. http://dx.doi.org/10.5515/kjkiees.2019.30.7.566 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Design

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Dec.; 26(12),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Dec.; 26(12), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Dec.; 26(12), 1100 1107. http://dx.doi.org/10.5515/kjkiees.2015.26.12.1100 ISSN 1226-3133 (Print) ISSN 2288-226X (Online)

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 12, Dec 그러나 eloran 송신 안테나는 매우 넓은 영역을 차지한 다. 예를 들어 미국에

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 12, Dec 그러나 eloran 송신 안테나는 매우 넓은 영역을 차지한 다. 예를 들어 미국에 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Dec.; 27(12), 1053 1058. http://dx.doi.org/10.5515/kjkiees.2016.27.12.1053 ISSN 1226-3133 (Print) ISSN 2288-226X (Online)

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE May; 26(5),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE May; 26(5), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 May; 26(5), 435444. http://dx.doi.org/10.5515/kjkiees.2015.26.5.435 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) 77 GHz

More information

PCB PCB. PCB P/G de-cap [2],[3]., de-cap ESL(Equivalent Series Inductance) [3],. P/G [4], P/G. de-cap P/G, PCB.. 단일비아를이용한 P/G 면공진상쇄 2-1 P/G 면공진현상 PCB

PCB PCB. PCB P/G de-cap [2],[3]., de-cap ESL(Equivalent Series Inductance) [3],. P/G [4], P/G. de-cap P/G, PCB.. 단일비아를이용한 P/G 면공진상쇄 2-1 P/G 면공진현상 PCB 韓國電磁波學會論文誌第 20 卷第 12 號 2009 年 12 月論文 2009-20-12-05 PCB Improved Characteristic of Radiated Emission of a PCB b Using the Via-Hole Position 김리진 이재현 Li-Jin Kim Jae-Hun Lee 요약 4 PCB(Printed Circuit Boards)

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Feb.; 30(2),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Feb.; 30(2), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2019 Feb.; 30(2), 124131. http://dx.doi.org/10.5515/kjkiees.2019.30.2.124 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) MIMO

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 25(11),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 25(11), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Nov.; 25(11), 11351141. http://dx.doi.org/10.5515/kjkiees.2014.25.11.1135 ISSN 1226-3133 (Print)ISSN 2288-226X (Online)

More information

<313920C0CCB1E2BFF82E687770>

<313920C0CCB1E2BFF82E687770> 韓 國 電 磁 波 學 會 論 文 誌 第 19 卷 第 8 號 2008 年 8 月 論 文 2008-19-8-19 K 대역 브릭형 능동 송수신 모듈의 설계 및 제작 A Design and Fabrication of the Brick Transmit/Receive Module for K Band 이 기 원 문 주 영 윤 상 원 Ki-Won Lee Ju-Young Moon

More information

<303320C1A4C3A2BFF82DBCBFB7EAB7AF20B9D720C4BFB3BCC6BCBAF1C6BC20B4EBBFAA20C5EBC7D5BFEB20B5BFBDC3B5BFC0DBB8F0B5E52E687770>

<303320C1A4C3A2BFF82DBCBFB7EAB7AF20B9D720C4BFB3BCC6BCBAF1C6BC20B4EBBFAA20C5EBC7D5BFEB20B5BFBDC3B5BFC0DBB8F0B5E52E687770> 한국산학기술학회논문지 Vol. 10, No. 6, pp. 1170-1174, 2009 박세현 1, 양찬우 2, 정창원 2* 1 DMC 연구소, 삼성전자, 2 NID 융합기술대학원, 서울산업대학교 Frequency Reconfigurable Antenna for Multi Mode & Multi Band (MMMB) Communication Systems Sehyun

More information

DBPIA-NURIMEDIA

DBPIA-NURIMEDIA 韓國電磁波學會論文誌第 21 卷第 12 號 2010 年 12 月論文 2010-21-12-09 Dual-Band Compact Broad Band-Pass Filter with Parallel Coupled Line 최영구 윤기철 이정훈 홍태의 Young-Gu ChoiBhanu Shrestha*Ki-Cheol Yn**Jeong-Hun Lee** Tae-Ui Hong***

More information

CS.hwp

CS.hwp 보고서 2019-11 2019. 1. 3 CS(065770) IT H/W < 작성기관 : 한국기업데이터 > 보고서 ( 요약 ) 보고서 ( 전문 ) 기업현황산업분석기술분석주요이슈및전망 CS(065770) IT H/W 이 보고서는 자본시장 혁신을 위한 코스닥시장 활성화 방안 의 일환으로 코스닥 기업에 대한 투자정보 확충을 위해, 한국거래소와 한국예탁결제원의 후원을

More information

05 목차(페이지 1,2).hwp

05 목차(페이지 1,2).hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Sep.; 25(9), 944 951. http://dx.doi.org/10.5515/kjkiees.2014.25.9.944 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) A Study

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 25(11),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 25(11), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 214 Nov.; 25(11), 1164 1171. http://dx.doi.org/1.5515/kjkiees.214.25.11.1164 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) BCI

More information

04_이근원_21~27.hwp

04_이근원_21~27.hwp 1) KIGAS Vol. 16, No. 5, pp 21~27, 2012 (Journal of the Korean Institute of Gas) http://dx.doi.org/10.7842/kigas.2012.16.5.21 실험실의 사례 분석에 관한 연구 이근원 이정석 한국산업안전보건공단 산업안전보건연구원 (2012년 9월 5일 투고, 2012년 10월 19일

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 29, no. 6, Jun , [6]. E- [9],[10]. E- 3D EM(electromagnetic),,

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 29, no. 6, Jun , [6]. E- [9],[10]. E- 3D EM(electromagnetic),, THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 Jun.; 29(6), 401 406. http://dx.doi.org/10.5515/kjkiees.2018.29.6.401 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) E-

More information

DBPIA-NURIMEDIA

DBPIA-NURIMEDIA 박건수 *, 서태영 **, 김종욱 *** ". 요약 Abstract The induction melting furnace using electric generator has been introduced since 1920s, and it began to be widely applied to industrial applications due to increasing

More information

08 조영아.hwp

08 조영아.hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Jan.; 26(1), 6370. http://dx.doi.org/10.5515/kjkiees.2015.26.1.63 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) 900 MHz

More information

08김현휘_ok.hwp

08김현휘_ok.hwp (Regular Paper) 21 3, 2016 5 (JBE Vol. 21, No. 3, May 2016) http://dx.doi.org/10.5909/jbe.2016.21.3.369 ISSN 2287-9137 (Online) ISSN 1226-7953 (Print) a), a) An Audio Coding Technique Employing the Inter-channel

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 25(11),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 25(11), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Nov.; 25(11), 11281134. http://dx.doi.org/10.5515/kjkiees.2014.25.11.1128 ISSN 1226-3133 (Print)ISSN 2288-226X (Online)

More information

ApplicationKorean.PDF

ApplicationKorean.PDF Sigrity Application Notes Example 1 : Power and ground voltage fluctuation caused by current in a via passing through two metal planes Example 2 : Power/ground noise and coupling in an integrated-circuit

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 28(11),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 28(11), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2017 Nov.; 28(11), 837 842. http://dx.doi.org/10.5515/kjkiees.2017.28.11.837 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) 8PSK-TCM

More information

<303320C0CCBCBAB7CE4B494353323031342D30352D3136315F28C3D6C1BEB1B3C1A4292E687770>

<303320C0CCBCBAB7CE4B494353323031342D30352D3136315F28C3D6C1BEB1B3C1A4292E687770> 논문 14-39C-09-03 The Journal of Korea Information and Communications Society '14-09 Vol.39C No.09 http://dx.doi.org/10.7840/kics.14.39c.9.774 어업통신을 위한 운용주파수의 경제적 가치 평가 최 조 천, 김 건 웅 *, 김 정 년 **, 이 성 로 Valuation

More information

Small-Cell 2.6 GHz Doherty 표 1. Silicon LDMOS FET Table 1. Comparison of silicon LDMOS FET and GaN- HEMT. Silicon LDMOS FET Bandgap 1.1 ev 3.4 ev 75 V

Small-Cell 2.6 GHz Doherty 표 1. Silicon LDMOS FET Table 1. Comparison of silicon LDMOS FET and GaN- HEMT. Silicon LDMOS FET Bandgap 1.1 ev 3.4 ev 75 V THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Feb.; 27(2), 108 114. http://dx.doi.org/10.5515/kjkiees.2016.27.2.108 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Small-Cell

More information

10 이지훈KICS2015-03-068.hwp

10 이지훈KICS2015-03-068.hwp 논문 15-40-05-10 The Journal of Korean Institute of Communications and Information Sciences '15-05 Vol.40 No.05 http://dx.doi.org/10.7840/kics.2015.40.5.851 가로등 인프라를 활용한 안전한 스마트 방범 시스템 차 정 화, 이 주 용 *, 이

More information

그림 2. 5G 연구 단체 현황 앞으로 다가올 미래에는 고품질 멀 티미디어 서비스의 본격화, IoT 서 비스 확산 등의 변화로 인해 기하 급수적인 무선 데이터 트래픽 발생 및 스마트 기기가 폭발적으로 증대 할 것으로 예상된다 앞으로 다가올 미래에는 고품질 멀티미디어 서

그림 2. 5G 연구 단체 현황 앞으로 다가올 미래에는 고품질 멀 티미디어 서비스의 본격화, IoT 서 비스 확산 등의 변화로 인해 기하 급수적인 무선 데이터 트래픽 발생 및 스마트 기기가 폭발적으로 증대 할 것으로 예상된다 앞으로 다가올 미래에는 고품질 멀티미디어 서 이동통신기술 5G 이동통신기술 발전방향 새롭게 펼쳐질 미래의 이동통신 세상, 무엇이 달라지는가? 김문홍, 박종한, 나민수, 조성호 SK Telecom 5G Tech Lab 요 약 본고에서는 다가올 미래 5G 이동 통신의 기술 동향, 핵심 기술 및 네트워크 구조변화에 대해서 알아본다. Ⅰ. 서 론 46 과거 2G부터 3G까지의 이동통신은 음성 위주의 서비스 및

More information

10 노지은.hwp

10 노지은.hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2013 DEC.; 24(12), 1190 1197. http://dx.doi.org/10.5515/kjkiees.2013.24.12.1190 ISSN 1226-3133 (Print) ISSN 2288-226X (Online)

More information

???? 1

???? 1 The Korean Journal of Applied Statistics (2014) 27(1), 13 20 DOI: http://dx.doi.org/10.5351/kjas.2014.27.1.013 Maximum Tolerated Dose Estimation by Stopping Rule and SM3 Design in a Phase I Clinical Trial

More information

湖北移动宽带接入市场研究前期评述报告

湖北移动宽带接入市场研究前期评述报告 2006 중국 무선 브로드밴드 시장 현황 및 전망 분석 보고서 2006 년 9 월 정책연구 06-06 2006 중국 무선브로드밴드 시장 현황 및 전망 분석 보고서 연구책임자 노재천 (ipark 북경 소장) 연구수행자 Wang Hai Xin (ipark 북경 마케팅매니저) 연구수행자 Ye Jian Feng (Analysys International) 본문 목차

More information

韓國電磁波學會論文誌第 21 卷第 11 號 2010 年 11 月 (a) (a) Frequency response (b) (b) Corresponding pole-zero diagram 그림 1. Fig. 1. Characteristic of multi-band filte

韓國電磁波學會論文誌第 21 卷第 11 號 2010 年 11 月 (a) (a) Frequency response (b) (b) Corresponding pole-zero diagram 그림 1. Fig. 1. Characteristic of multi-band filte 韓國電磁波學會論文誌第 21 卷第 11 號 2010 年 11 月論文 2010-21-11-09 A Filter Synthesis Method for Multi-Band Filter Design 이혜선 이자현 임영석 Hyesun LeeJahyeon LeeYeongseog Lim 요약 LC.,,., LC. LC GSM(880960 MHz), ISM(2,4002,500

More information

<B8F1C2F72E687770>

<B8F1C2F72E687770> Transactions of the KSNVE, 23(12) : 1056~1065, 2013 23 12, pp. 1056~1065, 2013 http://dx.doi.org/10.5050/ksnve.2013.23.12.1056 ISSN 1598-2785(Print), ISSN 2287-5476(Online) A Study on the Improvement Plan

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 12, Dec 또한, 최근 위성통신은 점차 많은 데이터량과 주파수 활용문제로 인하여 Ka 인 초고

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 12, Dec 또한, 최근 위성통신은 점차 많은 데이터량과 주파수 활용문제로 인하여 Ka 인 초고 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Dec.; 26(12, 1083 1090. http://dx.doi.org/10.5515/kjkiees.2015.26.12.1083 ISSN 1226-3133 (Print ISSN 2288-226X (Online GaN

More information

*금안1512-01-도비라및목차1~9

*금안1512-01-도비라및목차1~9 ISSN 1975-667 215. 12 215. 12 6 5 4 3 2 1 6 5 4 3 2 1 3 145 14 135 13 13 143. 14.7 1.4 9.2 1 7 45 4 35 41.4 85 76.9 76.8 3 7 8 75 125 4 4 1 25 8 6 4 2 2 15 1 5 15 15 36 35.3 36 14 13 12 11 14

More information

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE May; 29(5),

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE May; 29(5), THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 May; 29(5), 375382. http://dx.doi.org/10.5515/kjkiees.2018.29.5.375 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Analysis

More information

<4D6963726F736F667420576F7264202D2032303133303330385FB1E2BCFAB5BFC7E2BAD0BCAE2DB8F0B9D9C0CF20B3D7C6AEBFF6C5A92DC3D6BFCF2E646F6378>

<4D6963726F736F667420576F7264202D2032303133303330385FB1E2BCFAB5BFC7E2BAD0BCAE2DB8F0B9D9C0CF20B3D7C6AEBFF6C5A92DC3D6BFCF2E646F6378> 2013-03-08 모바일 네트워크 기술 동향 모바일 네트워크의 개념과 기본적인 배경 지식에 대해 소개하고, 최근 업계 동향을 살펴봄 목차 1. 모바일 네트워크 개요...2 2. 3G 네트워크 기술 소개...4 3. LTE-A 최신 동향...7 최완, wanne@etri.re.kr ETRI 차세대콘텐츠연구소 콘텐츠서비스연구실 ETRI 차세대콘텐츠연구소 콘텐츠서비스연구실

More information

DBPIA-NURIMEDIA

DBPIA-NURIMEDIA The e-business Studies Volume 17, Number 4, August, 30, 2016:319~332 Received: 2016/07/28, Accepted: 2016/08/28 Revised: 2016/08/27, Published: 2016/08/30 [ABSTRACT] This paper examined what determina

More information