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Mulit-Layer Directional Coupler With Enhaned Coupling and Isolation  

Park jeong hoon (시립인천전문대학교 정보통신과)
Lee Jin taek (아주대학교 전자공학과)
Chun Dong wan (아주대학교 전자공학과)
Shin Chul-chai (아주대학교 전자공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.10A, 2004 , pp. 1215-1222 More about this Journal
Abstract
In this paper, we proposed the directional coupler using two layer microstrip substrate which is improved coupling and isolation. Modified two-layer directional coupler is the structure which is added to the one-layer on the signal line and located the floating conductor on the added layer. Also, we applied the aperture on the ground plane in order to enhancing the coupling value, and located the conductor in order to enhancing the isolation and VSWR according to S$_{11}$. As a result, proposed two-layer directional coupler has about 2 dB more higher coupling and 20 dB more higher isolation than conventional couplerer
Keywords
Re-entrant Mode; Directional Coupler; Aperture; Multi-Layer;
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