05 김성진-1.hwp
|
|
- 채홍 위
- 5 years ago
- Views:
Transcription
1 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Sep.; 26(9), ISSN (Print) ISSN X (Online) EMI Noise The EMI Noise Reduction Circuit with Random Number Generator 김성진 박주현 김상윤 구자현 김형일 이강윤 Sung Jin Kim Ju Hyun Park SangYun Kim Ja Hyun Koo* Hyung il Kim* Kang-Yoon Lee 요약 Relaxation Oscillator EMI Noise., DC-DC Converter RF Receiver system Noise. Relaxation Oscillator 7.9 MHz, μm, 220 μm 280 μm. 1.8 V 500 μa. Abstract This paper proposes Relaxation Oscillator with Random Number Generator to minimize electromagnetic interference (EMI) noise. DC-DC Converter with Relaxation Oscillator is presented how much spurious noise effects to RF Receiver system. The main frequency of the proposed Relaxation oscillator is 7.9 MHz to operate it and add temperature compensation block to be applied to the frequency compensation in response to temperature changes. The DC-DC Converter Spurious noise is reduced up to 20 db through changing frequency randomly. It is fabricated in 0.18 μm CMOS technology. The active area occupies an area of 220 μm 280 μm. The supply voltage is 1.8 V and current consumption is 500 μa. Key words: Relaxation Oscillator, EMI, Random Number Generator, Temperature Compensation. 서론, (IoT Internet of Things),., EMI noise. Switching Mode Power Supply(SMPS) Linear Voltage Regulator. SMPS DC-DC converter. DC-DC converter linear voltage regulator DC-DC converter switching noise noise RF system. DC-DC converter switching noise (College of Information & Communication Engineering, SungKyunKwan University) *SK (SK Telecom) Manuscript received July 6, 2015 ; Revised September 4, 2015 ; Accepted September 11, (ID No S) Corresponding Author: Kang-Yoon Lee ( klee@skku.edu) 798 c Copyright The Korean Institute of Electromagnetic Engineering and Science. All Rights Reserved.
2 EMI Noise relaxation oscillator DC- DC converter EMI noise [1].. 본론 2-1 일반적인 Relaxation Oscillator 구조 1 relaxation oscillator. Relaxation oscillator. I 1 V OSC. V OSC V High SR-Latch Set, C 1. I 2, V OSC V Low SR-Latch reset. C 1. relaxation oscillator,., (t d ), [2]. 2-2 제안하는전체 Relaxation Oscillator 구조 제안하는 Relaxation Oscillator의동작원리 2(a) relaxation oscillator I1 B VOSC VHigh + - Comp td S Temperature Compensation Random Generator 4 I_TUNE 4 C_TUNE Relaxation Oscillator R ' B I2 C1 VLow - + Comp (a) (a) Block diagram (a) (a) Block diagram I_TUNE<3:0> VB I_BANK B OSC_ OSC_B VB IBIAS1 IBIAS2 PENB PENB IBIAS_15uA I1 I2 IBIAS1 VREF PHI PHIB PHIB PHI PHI PHIB VREF IBIAS2 C_TUNE<3:0> B C_TUNE<3:0> C_BANK C_BANK (b) (b) Waveform 그림 1. relaxation oscillator Fig. 1. Conventional relaxation oscilltor. (b) Relaxation oscillator (b) Schematic of relaxation oscillator 그림 2., relaxation oscillator Fig. 2. The structure of controllable current and capacitance relaxation oscillator. 799
3 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep relaxation oscillator. 2(b) relaxation oscillator I_TUNE<3:0>. relaxation oscillator I 1 I 2 I 1 C 1 C 2 RAMP1, RAMP2 RAMP1, V REF S, R. SR latch, B, switch on/off, (, B) [3]. C 1 V REF C_TUNE<3:0> I_TUNE<3:0> I 2 V REF RAMP2 S R ' RST B Relaxation Oscillator의주파수제어동작원리 Relaxation oscillator. (1) VREF RAMP1 C 2 C_TUNE<3:0> (a) (a) Simplified block diagram (2) VREF RAMP2 Hz (3) (3),, relaxation oscillator. 3(a), I_TUNE<3:0>, C_TUNE<3:0>, [4]. I_Bank (I_TUNE<3:0>) (I 1, I 2 ).,, (I_BIAS_15 ua) MO- SFET M8 M15 gate relaxation oscillator current generator 15 ua current mirror. I_Bank C_Bank 4(a), (b). I_Bank C_Bank MOSFET. I_Bank C_Bank I_TUNE<3:0>, C_TUNE<3:0>, relaxation oscillator 5. S R B (b) (b) Waveform 그림 3. relaxation oscillator Fig. 3. Proposed relaxation oscilltor 온도보상회로 6 PTAT(Proportional To Absolute Temperature) Generator Flash ADC(Analog to Digital Converter). PTAT_GEN, ADC relaxation oscillator I_TUNE<3:0>. 7 [4]. 800
4 EMI Noise (a) I_Bank (a) Schematic of I_Bank (a) (a) Block diagram (b) C_Bank (b) Schematic of C_bank schematic 그림 4. relaxation oscillator Fig. 4. Proposed relaxation oscilltor. (b) (b) Result of temperature simulation 그림 6. Fig. 6. Block diagram of temperature compensation. 그림 5. relaxation oscillator Fig. 5. Frequency variation range of relaxation oscillator according to control signal bits 랜덤수생성회로 8(a). 20 D-Flip Flop. 1, () relaxation oscillator. relaxation oscillator 1 (127 ns) 1 그림 7. Fig. 7. Simulation results of output frequency according to temperature variation. (131 ms) 10 6 relaxation oscillator. MSB(Most Significant Bit) 4 D Flip-Flop 4 bits I_Bank I_TUNE<3:0> relaxation oscillator relaxation oscillator (frequency hopping). MODE_SEL 801
5 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep dB -10dB -15dB -17dB (db) Noise Floor (a) (a) Schematic 7.9MHz 15.8MHz 23.7MHz 40MHz (a) Frequency hopping (a) Disable frequency hopping Frequency(MHz) 10.96dB dB -25dB (db) Removed harmonics (b) Relaxation oscillator (b) Change of output period of relaxation oscillator 그림 8. Fig. 8. Schematic of random number generator., 8(b) MODE_SEL 1 relaxation oscillator, MODE_SEL 0 relaxation oscillator. 9 8(b) FFT. 9(a) FFT. 7.9 MHz fundamental tone harmonic tone. 9(b) relaxation oscillator FFT., frequency hopping fundamental tone db harmonic tone 제안하는 Relaxation Oscillator 의 Layout 10 relaxation oscillator layout μm CMOS, 220 μm 280 μm. 2-3 Frequency Hopping 기법이적용된 DC-DC Converter 7~10MHz Increased Noise Floor 7.9MHz 15.8MHz 23.7MHz 40MHz (b) Frequency hopping (b) Enable frequency hopping Frequency(MHz) 그림 9. FFT Fig. 9. The result of FFT when using the random generator. 220um Mux RANDOM GEN OSC Core 280um 그림 10. relaxation oscillator layout Fig. 10. Layout of proposed relaxation oscillator. 11 switching noise DC-DC converter noise RF receiver system RF receiver system. 11 DC-DC converter VBAT 802
6 랜덤 수 생성 회로를 이용한 EMI Noise 저감 회로 기법이 적용된 의 블록 다이어그램 그림 11. Frequency hopping DC-DC converter RF receiver system Fig. 11. Block diagram of DC-DC converter with frequncy hopping & RF receiver system. 와 의 시뮬레이션 결과 그림 13. LNA noise figure Fig. 13. Noise figure simulation result of LNA. 의 출력 스펙트럼 그림 12. DC-DC converter Fig. 12. Output spectrum of DC-DC converter. 며, RF receiver system에 전원을 공급한다. RF receiver system은 PLL, LNA, mixer, baseband단과 modem을 포함 하고 있으며, DC-DC converter의 switching 주파수는 2.5 MHz이다. 2-4 DC-DC Converter의 출력이 LNA에 미치는 영향 의 내부에 포함되어 있는 사용에 따른 의 출력 스펙트럼 변화를 그림 에 나타내었다 을 사용 하지 않을 경우 에서 가 발생하며 그 들이 이상 올라오는 것을 확인할 수 있다 을 사용할 경우 가 되어 주파수 에서 로 을사 용하지 않을 때보다 가 만큼 감소하 는 것을 확인할 수 있다 그림 은 에 이상적인 전원을 공급하였을 경우 이 없는 를 통해 전원 DC-DC converter frequency hopping DC-DC converter 12. Frequency hopping, 2.5 MHz(Main Tone) 57.2 db spurious noise, harmonic tone 100 db. Frequency hopping spurious noise spreading switching (2.5 MHz) 77.3 db frequency hopping spurious noise 20.1 db. 13 LNA, frequency hopping DC-DC converter 을 공급받을 경우, frequency hopping이 적용된 DC-DC converter를 통해 전원을 공급받을 경우, 이 세 가지 경우 에 대한 LNA의 noise figure 시뮬레이션 결과를 보여주고 있다. Frequency hopping이 적용되었을 경우, 2.5 MHz 부 근의 noise 성분이 넓게 퍼지는 것을 확인할 수 있다. 2-5 DC-DC Converter의 출력이 VCO에 미치는 영향 그림 14는 VCO에서도 LNA와 같은 세 가지 경우에 대 한 VCO의 phase noise 시뮬레이션 결과를 보여주고 있다. VCO의 carrier 주파수가 2.4 GHz일 때 1 MHz 떨어진 주 파수에서 VCO의 phase noise는 이상적인 전원을 사용했 을 경우 128 dbc/hz이고, frequency hopping이 적용되지 않을 경우 120 dbc/hz로 8 db 성능이 열화된다. Frequency hopping이 적용되었을 경우, 127 dbc/hz로 noise 가 인가되지 않은 시뮬레이션 결과와 근사한 것을 확인 할 수 있다. 의 시뮬레이션 결과 그림 14. VCO phase noise Fig. 14. Phase noise simulation result of VCO. 803
7 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 9, Sep Ⅲ. 결 론 본 논문에서는 랜덤 수 생성 회로를 통해 relaxation oscillator의 주파수를 불규칙하게 변환하여 EMI noise를 최소화 하는 방법을 제시한다. 또한, DC-DC converter에 이 기법이 적용되었을 때의 효과와 이 결과가 RF receiver system에 미치는 효과를 noise 측면에서 연구하였다. 제안 하는 relaxation oscillator 출력 중심주파수는 7.9 MHz이고, 온도보상기법을 적용하여 온도변화에 따라 주파수가 보 상되도록 설계하였다. 이 칩은 0.18 μm 공정으로 설계하 였고, 칩의 면적은 220 μm 280 μm이다. 전류 소모는 공 급전압인 1.8 V에서 500 μa이다. References reduced output spurs using asynchronous frequency hopping", IEEE Transactions on Circuits and Systems, vol. 58, no. 11, Nov [2] F. Bala, T. Nandy, "Programmable high frequency RC oscillator", in Proc. IEEE 18th Int. Conf. VLSI Des., pp , Jan 최진욱, 이강윤, "자동차용 저 전력 주파수 확산 클럭 스펙트럼 생성기", 대한전자공학회 추계학술대회, pp , 2014년 10월. [4] 김상윤, 이강윤, "Temperature sensor 기반 ±1 % 이내의 주파수 정확도를 가지는 18 MHz relaxation oscllator의 설계", J. Korea Industr. Inf. Syst. Res., vol. 18, no. 5, 2013년 10월. [3] [1] Chengwu Tao, Ayman A. Fayed, "A buck converter with 김성 진 년 인제대학교 전자지능로봇공학과 공학사 년 월 현재: 성균관대학교 정보통 신대학 석박통합과정 [주 관심분야] RF 아날로그 집적회로설 계, Phase Locked Loop 김상 윤 2014 : ( ) 박주 현 년 한국외국어대학교 전자공학과 (공 학사 년 월 현재: 성균관대학교 정보통 신대학 석사과정 [주 관심분야] RF 아날로그 집적회로설 계, PMIC [주 관심분야] RF Transceiver, High-Speed Serial Interface 구자 현 2013 : ) 년 고려대학교 전기전자전파공학부 공학사 년 고려대학교 전자컴퓨터공학과 석 박사 통합과정 수료 현재: SK텔레콤 Embedded Tech. Lab(Ma2003 : ( ) 2007 : nager) [주 관심분야] Mixed Signal Design, Low Power Design 804 년 건국대학교 전자공학과 (공학사) 년 월 현재: 성균관대학교 정보통 신대학 석박통합과정 2013 :
8 EMI Noise 1991 : ( ) 1993 : ( ) 1997 : ( ) : SK TF(Project Leader) [ 주관심분야 ] SoC Design, System Architect 2003 : ( ) : ( ) : 2013 : [ 주관심분야 ] RF, / Mixed Mode 805
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 informationTHE 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. 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 informationTHE 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 informationTHE 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 informationTHE 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 informationTHE 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 information04 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 informationTHE 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 informationTHE 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 informationTHE 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 informationTHE 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 informationTHE 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 information04 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 informationRRH 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 informationTHE 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 informationTHE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Apr.; 28(4),
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2017 Apr.; 28(4), 298308. http://dx.doi.org/10.5515/kjkiees.2017.28.4.298 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Reduction
More informationTHE 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 informationTHE 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<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 information28 저전력복합스위칭기반의 0.16mm 2 12b 30MS/s 0.18um CMOS SAR ADC 신희욱외 Ⅰ. 서론 Ⅱ. 제안하는 SAR ADC 구조및회로설계 1. 제안하는 SAR ADC의전체구조
Journal of The Institute of Electronics and Information Engineers Vol.53, NO.7, July 2016 http://dx.doi.org/10.5573/ieie.2016.53.7.027 ISSN 2287-5026(Print) / ISSN 2288-159X(Online) 논문 2016-53-7-4 c Abstract
More informationTHE 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 information08 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 information11 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<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 information전자실습교육 프로그램
제 5 장 신호의 검출 측정하고자 하는 신호원에서 발생하는 신호를 검출(detect)하는 것은 물리측정의 시작이자 가장 중요한 일이라고 할 수가 있습니다. 그 이유로는 신호의 검출여부가 측정의 성패와 동의어가 될 정도로 밀접한 관계가 있기 때문입니다. 물론 신호를 검출한 경우라도 제대로 검출을 해야만 바른 측정을 할 수가 있습니다. 여기서 신호의 검출을 제대로
More information24 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 informationTHE 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 informationTHE 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 information09권오설_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 informationTHE 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 informationTHE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Feb.; 26(2),
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 15 Feb.; (), 1. http://dx.doi.org/1.5515/kjkiees.15... ISSN 1-3133 (Print)ISSN -X (Online) An Analysis on Harmonic Effects of
More information03 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 information박선영무선충전-내지
2013 Wireless Charge and NFC Technology Trend and Market Analysis 05 13 19 29 35 45 55 63 67 06 07 08 09 10 11 14 15 16 17 20 21 22 23 24 25 26 27 28 29 30 31 32 33 36 37 38 39 40
More informationDBPIA-NURIMEDIA
한국소음진동공학회 2015추계학술대회논문집년 Study of Noise Pattern and Psycho-acoustics Characteristic of Household Refrigerator * * ** ** Kyung-Soo Kong, Dae-Sik Shin, Weui-Bong Jeong, Tae-Hoon Kim and Se-Jin Ahn Key Words
More informationTHE 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 informationTHE 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 information인문사회과학기술융합학회
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 informationTHE 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 informationSlide 1
Clock Jitter Effect for Testing Data Converters Jin-Soo Ko Teradyne 2007. 6. 29. 1 Contents Noise Sources of Testing Converter Calculation of SNR with Clock Jitter Minimum Clock Jitter for Testing N bit
More informationTHE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jun.; 29(6),
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 Jun.; 29(6), 415423. http://dx.doi.org/10.5515/kjkiees.2018.29.6.415 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) Analysis
More information10신동석.hwp
(JBE Vol. 21, No. 5, September 2016) (Regular Paper) 21 5, 2016 9 (JBE Vol. 21, No. 5, September 2016) http://dx.doi.org/10.5909/jbe.2016.21.5.760 ISSN 2287-9137 (Online) ISSN 1226-7953 (Print) LED a),
More informationTHE 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 informationTHE 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, 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 informationTHE 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 informationMicrosoft Word - FS_ZigBee_Manual_V1.3.docx
FirmSYS Zigbee etworks Kit User Manual FS-ZK500 Rev. 2008/05 Page 1 of 26 Version 1.3 목 차 1. 제품구성... 3 2. 개요... 4 3. 네트워크 설명... 5 4. 호스트/노드 설명... 6 네트워크 구성... 6 5. 모바일 태그 설명... 8 6. 프로토콜 설명... 9 프로토콜 목록...
More informationDBPIA-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 information10 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 information1_12-53(김동희)_.hwp
본논문은 2012년전력전자학술대회우수추천논문임 Cascaded BuckBoost 컨버터를 이용한 태양광 모듈 집적형 저전압 배터리 충전 장치 개발 472 강압이 가능한 토폴로지를 이용한 연구도 진행되었지만 제어 알고리즘의 용의성과 구조의 간단함 때문에 BuckBoost 컨버터 또는 Sepic 컨버터를 이용하여 연구 가 진행되었다[10][13]. 태양광 발전
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
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 information05 목차(페이지 1,2).hwp
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Apr.; 25(4), 418 425. http://dx.doi.org/10.5515/kjkiees.2014.25.4.418 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Doppler
More informationTHE 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 information8-VSB (Vestigial Sideband Modulation)., (Carrier Phase Offset, CPO) (Timing Frequency Offset),. VSB, 8-PAM(pulse amplitude modulation,, ) DC 1.25V, [2
VSB a), a) An Alternative Carrier Phase Independent Symbol Timing Offset Estimation Methods for VSB Receivers Sung Soo Shin a) and Joon Tae Kim a) VSB. VSB.,,., VSB,. Abstract In this paper, we propose
More information<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 information08김현휘_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<4D F736F F F696E74202D20BEC6B3AFB7CEB1D7B9D7C6C4BFF64943BFF6C5A9BCA55F FBEC8B1E6C3CA2E707074>
아날로그및파워 IC 워크샵 저전력아날로그 IC 설계기술 서강대학교전자공학과안길초 Contents 2 1 2 Introduction Low-Power Design Techniques 3 Conclusions 1. Introduction 3 Why Low-Power? (1) 4 Increasing demand for mobile applications Longer
More information(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 information05 목차(페이지 1,2).hwp
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Oct.; 25(10), 1069 1076. http://dx.doi.org/10.5515/kjkiees.2014.25.10.1069 ISSN 1226-3133 (Print) ISSN 2288-226X (Online)
More information<333820B1E8C8AFBFEB2D5A6967626565B8A620C0CCBFEBC7D120BDC7BFDC20C0A7C4A1C3DFC1A42E687770>
Journal of the Korea Academia-Industrial cooperation Society Vol. 13, No. 1 pp. 306-310, 2012 http://dx.doi.org/10.5762/kais.2012.13.1.306 Zigbee를 이용한 실외 위치추정 시스템 구현 김환용 1*, 임순자 1 1 원광대학교 전자공학과 Implementation
More information전자교탁 사양서.hwp
사 양 서 품 목 단 위 수량 SYSTEM CONSOLE EA 32 - 사용자에 따른 타블렛 모니터 저소음 전동 각도 조절기능이 내장된 교탁 - 교탁 상/하부 별도의 조립이 필요 없는 일체형(All in One type) CONSOLE - 상판에 리미트 센서를 부착하여 장비 및 시스템의 안정성 강화 - 금형으로 제작, 슬림하고 견고하며 마감이 깔끔한 미래지향적
More informationTHE 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 information05 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 information03-서연옥.hwp
농업생명과학연구 49(4) pp.31-37 Journal of Agriculture & Life Science 49(4) pp.31-37 Print ISSN 1598-5504 Online ISSN 2383-8272 http://dx.doi.org/10.14397/jals.2015.49.4.31 국가산림자원조사 자료를 적용한 충남지역 사유림경영율 추정 서연옥
More informationÀ̵¿·Îº¿ÀÇ ÀÎÅͳݱâ¹Ý ¿ø°ÝÁ¦¾î½Ã ½Ã°£Áö¿¬¿¡_.hwp
l Y ( X g, Y g ) r v L v v R L θ X ( X c, Yc) W (a) (b) DC 12V 9A Battery 전원부 DC-DC Converter +12V, -12V DC-DC Converter 5V DC-AC Inverter AC 220V DC-DC Converter 3.3V Motor Driver 80196kc,PWM Main
More informationTHE 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 informationTHE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Dec.; 25(12),
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Dec.; 25(12), 12751283. http://dx.doi.org/10.5515/kjkiees.2014.25.12.1275 ISSN 1226-3133 (Print)ISSN 2288-226X (Online)
More informationTHE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 1, Jan 서론 PC PMIC(Power Management IC) [1]. PMIC DC-D
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2015 Jan.; 26(1), 7180. http://dx.doi.org/10.5515/kjkiees.2015.26.1.71 ISSN 1226-3133 (Print)ISSN 2288-226X (Online) LDO PSR
More informationTHE 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 informationTHE 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 information29 Ⅰ. 서론 물리학자들이 전파의 이론을 정립한 이후, 이를 기술적으로 실현함은 물론 적정 수준의 19세기 물리학자인 페러데이, 맥스웰, 헤르츠 등의 연구 결과로 인류는 전기장과 자기장의 변화 에 따른 전파를 만들어 낼 수 있게 되었고, 인류에 게 있어 없어서는 안되
Journal of Communications & Radio Spectrum SPECIAL ISSUE 28 TREND REPORT 통신 및 비통신용 전파응용 기술 이슈 및 시사점 글 황태욱 경희대학교 연구교수 (031) 201-3254, twhwang@khu.ac.kr 주제어: 밀리미터파, 테라헤르츠파, 전파응용 기술, ISM 기기 전파자원의 부족문제에 대한
More information???? 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 information09 남형기.hwp
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2013 Sep.; 24(9), 936 943. http://dx.doi.org/10.5515/kjkiees.2013.24.9.936 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) 77
More informationTHE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jan.; 28(1), IS
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2017 Jan.; 28(1), 33 41. http://dx.doi.org/10.5515/kjkiees.2017.28.1.33 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Hand Gesture
More informationTHE 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 informationTHE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Jan.; 25(1), IS
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Jan.; 25(1), 47 52. http://dx.doi.org/10.5515/kjkiees.2014.25.1.47 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Circuit
More informationTHE 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 information07 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 informationMicrosoft Word - JAVS_UDT-1_상세_메뉴얼.doc
UDT-1 TRANSPORTER 한글 상세 제품 설명서 SoundPrime. 저작권 본 저작권은 Soundprime 이 소유하고 있습니다. Soundprime 의 허가 없이 정보 검색 시스템상에서 복사, 수정, 전달, 번역, 저장을 금지하며, 컴퓨터언어나 다른 어떠한 언어로도 수정될 수 없습니다. 또한 다른 형식이나 전기적, 기계적, 자기적, 광학적, 화학적,
More informationDBPIA-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 information05 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 information서강대학교 기초과학연구소대학중점연구소 심포지엄기초과학연구소
2012 년도기초과학연구소 대학중점연구소심포지엄 마이크로파센서를이용한 혈당측정연구 일시 : 2012 년 3 월 20 일 ( 화 ) 14:00~17:30 장소 : 서강대학교과학관 1010 호 주최 : 서강대학교기초과학연구소 Contents Program of Symposium 2 Non-invasive in vitro sensing of D-glucose in
More informationDBPIA-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 information04 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 informationTEL:02)861-1175, FAX:02)861-1176 , REAL-TIME,, ( ) CUSTOMER. CUSTOMER REAL TIME CUSTOMER D/B RF HANDY TEMINAL RF, RF (AP-3020) : LAN-S (N-1000) : LAN (TCP/IP) RF (PPT-2740) : RF (,RF ) : (CL-201)
More information歯AG-MX70P한글매뉴얼.PDF
120 V AC, 50/60 Hz : 52 W (with no optional accessories installed), indicates safety information. 70 W (with all optional accessories installed) : : (WxHxD) : : 41 F to 104 F (+ 5 C to + 40 C) Less than
More informationMicrosoft Word - SRA-Series Manual.doc
사 용 설 명 서 SRA Series Professional Power Amplifier MODEL No : SRA-500, SRA-900, SRA-1300 차 례 차 례 ---------------------------------------------------------------------- 2 안전지침 / 주의사항 -----------------------------------------------------------
More information그림 1 DC 마이크로그리드의구성 Fig. 1 Configuration of DC Micro-grid 그림 2 전력흐름도 Fig. 2 Power Flow of each component 그림 3 전력관리개념 Fig. 3 Concept of Energ Management Unit 1 Unit 2 Output Impedence z1 Output Impedence
More information12.077~081(A12_이종국).fm
J. of Advanced Engineering and Technology Vol. 1, No. 1 (2008) pp. 77-81 y w» e wx Á w œw Fabrication of Ceramic Batch Composition for Porcelain by Using Recycled Waste Ceramic Powder Hyun Guen Han, and
More informationTHE 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 information서보교육자료배포용.ppt
1. 2. 3. 4. 1. ; + - & (22kW ) 1. ; 1975 1980 1985 1990 1995 2000 DC AC (Ferrite) (NdFeB; ) /, Hybrid Power Thyrister TR IGBT IPM Analog Digital 16 bit 32 bit DSP RISC Dip SMD(Surface Mount Device) P,
More informationSmall-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 informationApplicationKorean.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 informationTHE 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 informationTHE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 9, Sep 작한 간섭기는 삼각파, 톱니파 및 임의 주파수 호핑 신호 를 구현할 수 있도록 제작되
THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2016 Sep.; 27(9), 865 871. http://dx.doi.org/10.5515/kjkiees.2016.27.9.865 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) 77
More information09È«¼®¿µ5~152s
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 information3 : ATSC 3.0 (Jeongchang Kim et al.: Study on Synchronization Using Bootstrap Signals for ATSC 3.0 Systems) (Special Paper) 21 6, (JBE Vol. 21
3: ATSC 3.0 (Jeongchang Kim et al.: Study on Synchronization Using Bootstrap Signals for ATSC 3.0 Systems) (Special Paper) 21 6, 2016 11 (JBE Vol. 21, No. 6, November 2016) http://dx.doi.org/10.5909/jbe.2016.21.6.899
More information2 : (JEM) QTBT (Yong-Uk Yoon et al.: A Fast Decision Method of Quadtree plus Binary Tree (QTBT) Depth in JEM) (Special Paper) 22 5, (JBE Vol. 2
(Special Paper) 22 5, 2017 9 (JBE Vol. 22, No. 5, Sepember 2017) https://doi.org/10.5909/jbe.2017.22.5.541 ISSN 2287-9137 (Online) ISSN 1226-7953 (Print) (JEM) a), a), a) A Fast Decision Method of Quadtree
More informationMAX+plus II Getting Started - 무작정따라하기
무작정 따라하기 2001 10 4 / Version 20-2 0 MAX+plus II Digital, Schematic Capture MAX+plus II, IC, CPLD FPGA (Logic) ALTERA PLD FLEX10K Series EPF10K10QC208-4 MAX+plus II Project, Schematic, Design Compilation,
More information