Broadband Design Method of SIW Directional Couplers
This paper treats two-fold symmetrical SIW directional couplers with simple structure and broadband characteristics. The proposed directional coupler consists of a rectangular cavity connected four input/output ports at its corner, and several metallic posts inserted within the cavity in order to obtain a desired property. By optimizing the circuit structure, broadband characteristics can be obtained for several directional couplers with a coupling coefficient of OdB or 3dB. In analysis and design, SIW circuits are treated as waveguide circuits filled with dielectric material, and applied to the H-plane planar circuit approach, the segmentation method, and short-circuiting of fictitious ports. Finally, we demonstrate the validity of this design procedure by em-simulations and measurement of fabricated couplers including microstrip line to SIW transitions.
Katsuya Murai Hiroaki Ikeuchi Tadashi Kawai Mitsuyoshi Kishihara Isao Ohta
Graduate School of Engineering, University of Hyogo 2167 Shosha, Himeji, Hyogo, 671-2280, Japan Faculty of Computer Science and System Engineering, Okayama Prefectural University 111 Kuboki, Soja, University of Hyogo 1-3-3 Higashikawasaki-cho, Chuo-ku, Kobe, Hyogo, 650-0044, Japan
国际会议
2011 China-Japan Joint Microwave Conference(2011年中日微波会议CJMW 2011)
杭州
英文
386-389
2011-04-20（万方平台首次上网日期，不代表论文的发表时间）