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http://dx.doi.org/10.5515/KJKIEES.2013.24.5.508

A New Folded Corrugated SIW with DC Biasing Capability  

Cho, Daekeun (Microwave Application Laboratory, Department of Electronic Engineering, Ajou University)
Lee, Hai-Young (Microwave Application Laboratory, Department of Electronic Engineering, Ajou University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.24, no.5, 2013 , pp. 508-514 More about this Journal
Abstract
Substrate integrated waveguide(SIW) constructed by two metal planes and conductive vias in a dielectric substrate, have all the conductors connected each other and hence, cannot be biased by DC sources. We propose a new folded corrugated substrate integrated waveguide(FCSIW) that can be DC-biased. Since the proposed FCSIW replaces the SIW conducting vias by folded open subs, it can supply the DC sources. The FCSIW has better transmission characteristics and 30 % less width than the common corrugated substrate integrated waveguide(CSIW) having a serious leakage generation problem. The FCSIW shows better insertion loss(1.49 dB) compared with that(3.08 dB) of the CSIW measured for 154 mm length devices and averaged at 9~15 GHz frequency band. No leakage has been observed from crosstalk measurements of the FCSIW.
Keywords
Broadband Transmission Characteristics; Corrugated Substrate Integrated Waveguide(CSIW); DC Biasing; Folded Corrugated Substrate Integrated Waveguide(FCSIW); Open Stub;
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