Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2008.19.7.785

A Study on a New Balun Structure with Vertically Periodic Defected Ground Structure  

Kim, Kwi-Soo (Department of Electrical and Communication Engineering, Soonchunghyang University)
Kim, Chul-Soo (Samsung Advanced Institute of Technology)
Song, In-Sang (Samsung Advanced Institute of Technology)
Lim, Jong-Sik (Department of Electrical and Communication Engineering, Soonchunghyang University)
Ahn, Dal (Department of Electrical and Communication Engineering, Soonchunghyang University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.19, no.7, 2008 , pp. 785-790 More about this Journal
Abstract
In this paper, a new balun is proposed. This proposed balun has a DGS(Defected Ground Structure) pattern on the ground plane. The transmission-line is transformed by microstrip-to-slotline transition. DGS pattern on the ground plane and transition of the lines can be easily made a property of the balun. Resonance frequency of the DGS leads to operating frequency of the balun. Also the transition produces $180^{\circ}$ out-of-phase between two output ports without additional transmission line. In this paper, a new balun with VPDGS(Vertically Periodic Defected Ground Structure) effectively lower the operating frequency. To validate the proposed design method, the new balun is designed, fabricated and measured at 2 GHz.
Keywords
Balun; Microstrip-to-Slotline Transition; VPDGS(Vertically Periodic Defected Ground Structure);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Gordon J. Laughlin, 'A new impedance-matched wide-band balun and magic tee', IEEE Trans. Mi-crow. Theory and Tech., vol. MTT-24, no. 3, pp. 135-141, Mar. 1976
2 J. Rogers, R. Bhatia, 'A 6 to 20 GHz planar balun using a Wilkison divier and lange couplers', IEEE MTT-S IMS 1991 Digest, pp. 865-868, 1991
3 Dal Ahn, Jun-Seok Park, Chul-Soo Kim, Juno Kim, Yongxi Qian, and Tatsuo Itoh, 'A design of the low-pass filter using the novel microstrip defected ground structure', IEEE Trans. Microw. Theory and Tech., vol. 49, no. 1, pp. 86-93, 2001   DOI   ScienceOn
4 임종식, 양회성, 김동주, 정용채, 안달, 김광수, '신호-접지 교차 구조를 이용한 소형화된 CPW 윌킨슨 분배기 구조의 발룬', 한국전자파학회논문지, 16(8), pp. 835-841, 2005년 8월   과학기술학회마을
5 J. -S. Lim, C. -S. Kim, Y. -T. Lee, D. Ahn, and S. Nam, 'Vertically periodic defected ground structure for planar transmission lines', Electronics Letters, vol. 38, no. 15, pp. 803-804, 2002   DOI   ScienceOn
6 김철수, 성정현, 길준범, 김상혁, 김호섭, 박준석, 안달, 'Defected ground structure를 갖는 전송 선로의 특성과 집중소자에 의한 특성', 한국전자파학회논문지, 11(6), pp. 946-951, 2000년 9월
7 Jong-Sik Lim, Young-Taek Lee, Chul-Soo Kim, Dal Ahn, and Sangwook Nam, 'A method to shorten the size of amplifiers using vertically periodic defected ground structure', 32nd European Microwave Conference, pp. 159-162, 2002
8 K. C. Gupta, Ramesh Garg, Iner Bahl, and Prakash Bhartia, Microstrip Lines and Slotlines, Artech House, Boston, 1996
9 Rajesh Mongia, Inder Bahl, and Prakash Bhatia, RF and Microwave Coupled-Line Circuits, Artech House, Boston, 1999
10 임종식, 박웅희, 정용채, 안달, 오성민, 구재진, 김광수, '다단 윌킨슨 구조의 초광대역 CPW 발룬', 한국전자파학회논문지, 17(9), pp. 811-820, 2006년 9월   과학기술학회마을
11 Dae-Won Lew, Jun-Seok Park, Dal Ahn, Nam-Kee Kang, In-Shig Park, Wook Lim, and Chan-Sei Yoo, 'A design of the ceramic multilayer chip balun', IEEE MTT-S IMS 1999 Digest, pp. 1893-1896, 1999