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CPW Directional Couplers with Enhanced Directivity by Using Expanded Slot Width as Compensation Structures  

이창언 (아주대학교 전자공학과)
최경민 (아주대학교 전자공학)
박정훈 (시립인천전문대학 정보통신)
신철재 (아주대학교 전자공학과)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.15, no.4, 2004 , pp. 368-378 More about this Journal
Abstract
In this paper, we proposed the compensation structures for the enhanced directivity of CPW(Coplanar waveguide) directional couplers with finite-extent backed conductor. The proposed compensation structures are. realized by expanding the slot width between signal line and ground plane in center region of couplers. The CPW couplers with expanded slot have the same phase velocity for even and odd mode because of added inductance and changed capacitance appropriately, so the enhanced directivity is accomplished. The designed CPW directional couplers have good directivity and matching characteristic at center frequency in simulation and measurement.
Keywords
CPW Cooper; Directivity; Compensation; Expanded Slot; Finite-Extent Backed Conductor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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