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Half Mode Substrate Integrated Waveguide (HMSIW) Directional Filter

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3 Author(s)
Yujian Cheng ; Southeast Univ., Nanjing ; Wei Hong ; Ke Wu

A double-loop directional filter is described and realized in this work by using a novel guided-wave structure called half mode substrate integrated waveguide (HMSIW), which retains the attractive performances of substrate integrated waveguide (SIW) with a nearly half reduction in size compared to the original SIW version. The demonstrated filter is designed at 12 GHz with less than 3.2 dB insertion loss for a 250-MHz bandwidth, and the minimum insertion loss is 1.5 dB. It presents low insertion loss, high power capacity in planar compact configuration with a standard PCB fabrication process.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:17 ,  Issue: 7 )