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http://dx.doi.org/10.5515/KJKIEES.2010.21.2.110

Tunable SIW Using Dielectric Screw for Eliminating the Phase Imbalance of Large Size Substrate Integrated Power Distribution Network  

Byun, Jin-Do (Department of Electronics Engineering, Ajou University)
Lee, Hai-Young (Department of Electronics Engineering, Ajou University)
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Abstract
In this paper, we propose a tunable SIW(Substrate Integrated Waveguide) using dielectric screws for eliminating the phase imbalance of large size power distribution networks(PDN). Alumina screws partially inserted into several through holes of the tunable SIW section effectively change the phase shift without S-parameter degradation. ${\pm}33.9^{\circ}$ measured phase imbalance of a large conventional 9 GHz SIW-PDN of $370\;mm{\times}195\;mm$ size has been greatly reduced to ${\pm}4.65^{\circ}$. We expect that the proposed tunable SIW plays an important role for a light-weight, high performance substrate integrated phased array system(Si-PAS) and large size SIW circuit applications.
Keywords
Substrate Integrated Waveguide(SIW); Tunable Phase Shifter; Phased Array System; Power Distribution Network;
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