Slow-wave substrate integrated waveguide with partially polyline loading

In this letter, a novel slow-wave substrate integrated waveguide (SW-SIW) structure partially loaded with microstrip polyline is presented and experimentally demonstrated, and some interesting slow-wave propagation effects are obtained. The SW-SIW enables the cutoff frequency reduction without sacri...

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Bibliographic Details
Published in2017 47th European Microwave Conference (EuMC) pp. 691 - 694
Main Authors Yuliang Zhou, Haiyan Jin, Yong Mao Huang, Hailu Jin
Format Conference Proceeding
LanguageEnglish
Published European Microwave Association 01.10.2017
Subjects
Cutoff frequency
Loading
Microstrip components
Permeability
Substrates
Waveguide components
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Summary:In this letter, a novel slow-wave substrate integrated waveguide (SW-SIW) structure partially loaded with microstrip polyline is presented and experimentally demonstrated, and some interesting slow-wave propagation effects are obtained. The SW-SIW enables the cutoff frequency reduction without sacrificing its performance at the same lateral dimension. Specifically, with different central microstrip widths, a cutoff frequency reduction of 16%, 26%, 31% are achieved compared to the conventional SIW counterpart at the same lateral dimension. At the same time, the guided-wave phase velocity is reduced linearly as well, which could be easily realized and appropriate for phase shifters with uniform size at the feeding networks.
DOI:10.23919/EuMC.2017.8230941