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Equivalent Network Modeling of Slot-Coupled Microstripline to Waveguide Transition  

Kim Won-Ho (Department of Electronic & Electrical Engineering, Chung-Ang University)
Shin Jong-Woo (Department of Electronic & Electrical Engineering, Chung-Ang University)
Kim Jeong-Phill (Department of Electronic & Electrical Engineering, Chung-Ang University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.15, no.10, 2004 , pp. 1005-1010 More about this Journal
Abstract
An analysis method of slot-coupled microstripline to waveguide transition is presented to developed a simple but accurate equivalent circuit model. The equivalent circuit consists of an ideal transformer, microstrip open stub, and admittance elements looking into a waveguide and a half space of feed side from a slot center. The related circuit element values are calculated by applying the reciprocity theorem, the Fourier transform and series representation, the complex power concept, and the spectral-domain immittance approach. The computed scattering parameters are compared with the measured, and good agreement validates the simplicity and accuracy of the proposed equivalent circuit model.
Keywords
Microstripline-Waveguide Transition; Slot-Coupled; Equivalent Circuit;
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