Design of a Half-Mode SIW High-Pass Filter
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Design of a Half-Mode SIW High-Pass FilterAbstract
A planar high-pass filter with simple topology, low insertion loss and high power handling is presented in this paper. It is based on the half-mode substrate-integrated waveguide (SIW) structure whose shorting wall is implemented with periodical via-holes. Meanwhile, bevel edges are embedded to achieve good impedance matching. Parameter studies are also performed to give design insights for practical applications. A planar waveguide filter with cutoff frequency of 10 GHz is designed and built. The measured data have a good agreement with the simulated responses, and demonstrate practical utility of the proposed topology.
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