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Wideband lumped element equivalent circuit model for waveguide slots and applications

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5 Author(s)
Eshrah, I.A. ; Dept. of Electr. Eng., Mississippi Univ., MS, USA ; Kishk, A.A. ; Yakovlev, A.B. ; Glisson, A.W.
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A parallel LC equivalent circuit model for rectangular waveguide slots is obtained through the MoM analysis of a waveguide slot coupler problem. The values of the lumped LC elements are virtually constant over the frequency range of interest (the X-band) for specific waveguide and slot dimensions. Obtained through the analysis of a simple waveguide coupling problem, the equivalent circuit model is used to analyze more complicated structures, such as slot coupler arrays and slot-based waveguide filters. The results obtained for these structures through the circuit analysis are verified using the MoM and the FDTD techniques, and exhibit excellent agreement over a wide band of frequencies.

Published in:

Microwave Symposium Digest, 2004 IEEE MTT-S International  (Volume:2 )

Date of Conference:

6-11 June 2004