DBPIA-NURIMEDIA

Transcription

1 초고주파대역도파관부품측정기술 Measurement Techniques for Microwave Waveguide Components 저자 (Authors) 유상길, 최순우, 김동현, 김대오, 안병철 Sang-Gil Yu, Swoon-Woo Choi, Dong-Hyun Kim, Dae-Oh, Kim, Bierng-Chearl Ahn 출처 (Source) 한국정보기술학회논문지 14(5), , (9 pages) Journal of Korean Institute of Information Technology 14(5), , (9 pages) 발행처 (Publisher) 한국정보기술학회 Korean Institute of Information Technology URL APA Style 유상길, 최순우, 김동현, 김대오, 안병철 (2016). 초고주파대역도파관부품측정기술. 한국정보기술학회논문지, 14(5), 이용정보 (Accessed) 충북대학교 *** 2017/01/03 11:50 (KST) 저작권안내 DBpia 에서제공되는모든저작물의저작권은원저작자에게있으며, 누리미디어는각저작물의내용을보증하거나책임을지지않습니다. 그리고 DBpia 에서제공되는저작물은 DBpia 와구독계약을체결한기관소속이용자혹은해당저작물의개별구매자가비영리적으로만이용할수있습니다. 그러므로이에위반하여 DBpia 에서제공되는저작물을복제, 전송등의방법으로무단이용하는경우관련법령에따라민, 형사상의책임을질수있습니다. Copyright Information Copyright of all literary works provided by DBpia belongs to the copyright holder(s)and Nurimedia does not guarantee contents of the literary work or assume responsibility for the same. In addition, the literary works provided by DBpia may only be used by the users affiliated to the institutions which executed a subscription agreement with DBpia or the individual purchasers of the literary work(s)for non-commercial purposes. Therefore, any person who illegally uses the literary works provided by DBpia by means of reproduction or transmission shall assume civil and criminal responsibility according to applicable laws and regulations.

2 유상길 *, 최순우 **, 김동현 ***, 김대오 ***, 안병철 **** 요약. SOLT(Short-Offset short-load-thru) DUT. - 10~15GHz -18dB -0.16dB Abstract This paper presents precise measurement techniques for waveguide components at microwave band. The error parameters are presented in the network analyzer and the calibrated results are shown by using the SOLT(Short-Offset short-load-thru) kit when measuring waveguide components. A method is proposed to obtain the performances of the circular-rectangular waveguide transition by in order connecting 3 offset shorts. The scattering parameters of the transition are calculated from the measured reflection coefficients with 3 offset shorts. The waveguide transition has a reflection coefficient of less than -18dB and a transmission coefficient of more than 0.16dB. Next, a method utilizing a low-reflection horn at the common port of an OMT is introduced. The electric performances between the straight and side ports are measured by employing connecting a low-reflection horn at the common port of the OMT. The measurements agree well with the designed results. Keywords waveguide components, error parameter in the network analyzer, waveguide calibration, low-reflection horn ž Received: Nov. 30, 2015, Revised: May 09, 2016, Accepted: May 12, 2016 ž Corresponding Author: Bierng-Chearl Ahn Director of Applied Electromagnetics Lab., Chungbuk National University, Cheongdae-ro 1, Cheongju City, Chungbuk Province, , Korea Tel.: , bician@cbu.ac.kr

3 50,, - [1]-[4]. -.,.. [5][6]. de-embedding [7]. [8] (DUT: Device Under Test). 2 DUT 1- ( ) S 11M : - E D, E S, E RT : 1- - S 11A: DUT 2 DUT (S 11M) (1a). (1a) (E D), (E S), (E RT) [4]. 회로망분석기 Port 1 Port 2 DUT 도파관어댑터 Error Model RF in ( ) (Calibration).. S 11M E D ERT Es S11A

4 shorts of fset shortos matched loadl (1a) ((1b) 1 (1a) 3.,, (Offset Short). (1b) (2). (2a) (2b) (2c) 2 1 (Reverse). DUT 2 ( ), 1 2 ( ), ( )., DUT (Short),, 6-10 (Load). - Thru. SOLT(Short-Offset short-load-thru). (2),,. (3). FORWARD F IN 1 PORT 1 PORT 2 S 21A E X E T S 21M S 11A S11M - ED = E ( S - E ) + E (3) S 11M D RT S 11M ED E S E RT S 11A S 22A S 12A E L (DUT) (Forward) REVERSE S 12M E L E TR E X PORT 1 PORT 2 S 21A S 11A S 22A S 12A 1 E RT E S S 22 E D RF IN

5 52 5 4,, Thru. WR-75 10~15GHz. 5(a) 1. 1(= 0dB) (a) ±0.005, 180 ±1.0. 5(b) 1 2 (Thru) Thru 1.0± 0.002, 0± /. SOLT , (1b) 1- S 11,A (4)

6 TE 11. (4a) (6a) (6b) (6c) (4b) 6(a). 6(b). 6(b) (5). - (7). (7) (5) = 0, 1, 2 (8). (5) (6). (6) TE 11. (8a) (8b) (8c) G i a 1 S 11t b 1 S 21t S 21t b 2 S 22t a 2 r Li 10-15GHz (4) =5mm, =10mm (7) mm, 10mm 2. WR-75(a=19.05mm, b=9.53mm) 19.03mm. 50mm. guided pin 6.

7 G 1, G 2, G GHz ~ -43dB -0.16dB.. S 11 (db) S 21 (db) Frequency (GHz) S11PHASE S11MAG PHASE of S Frequency (GHz) S21PHASE S21MAG PHASE of S 21,. 9...,, 1, 2, 3 (V) (H). (9). é - jq1 V, ù éb1 ù e V ê ú éa1v ù ê ú - jq ê 1 H, ú ê ú ê b H ú e ê a1h = ê ú ú ê b - q 2 ú j ê 1 V,2 e ú ê a2 ú ê ú ê ú ê ú ë b3 û - jq1 H,3 3 ê ú ë a û ë e û 용포트 직교모드변환기 직선포트 측면포트 (9)

8 .,..

9 56. / -40dB. TRL.. -25dB mm GHz -25dB / GHz ~ -43dB -0.16dB.,. /... [1] Y. M. Kim, Y. S. Jung, J. W. Non, L. J. Zhang, and B. C. Ahn, "Design of 70/80GHz broadband orthomode transducer", Journal of KIIT, Vol. 13, No. 7, pp , July [2] T. L. Zhang and Z. H. Yan, "A Ka dual-band circular waveguide polarizer", 7th Int. Symp. on Antennas, Propag. and EM Theory, 2006, Vo1. 1, pp. 1-4, Oct [3] A. J. Simmons, "Phase shift by periodic loading of waveguide and its applications to broad-band circular polarization", IRE Trans. Microwave Theory Tech., Vol. MTT-3, pp , Dec [4] Jae-Ho Cha, Myung-sook Jung, and Bierng-Chearl Ahn, "Design of a W-band orthomode transducer," Journal of KIIT, Vol. 13, No. 3, pp , Mar [5] Agilent Technologies, "Applying Error Correction to Network Analyzer Measurements", Application Note , [6] K. J. Silvonen, "A general approach to network analyzer application", IEEE Trans. Microwave Theory Tech., Vol. MTT-40, No. 3, pp , Apr [7] F. M. Ghannouchi, A Brodeur, and F. Bearuregard, "A de-embedding technique for reflection-based S-parameters measurements of microwave device", IEEE Conf. Precision Electromag. Meas., pp , 1994.

10 [8] S. Rehnmark, "On the calibration process of automatic network analyzer systems", IEEE Trans. Microwave Theory Tech., Vol. MTT-22, No. 4, pp , Apr 유상길 (Sang-Gil Yu) 최순우 (Swoon-Woo Choi) 김대오 (Dae-Oh Kim) 안병철 (Bierng-Chearl Ahn) 김동현 (Dong-Hyun Kim)