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http://dx.doi.org/10.5515/KJKIEES.2011.22.2.173

HMSIW Balanced Filter for Improved Isolation between Output Ports  

Hwang, Seok-Min (Department of Electronic Engineering, Ajou University)
Byun, Jin-Do (Department of Electronic Engineering, Ajou University)
Lee, Hai-Young (Department of Electronic Engineering, Ajou University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.22, no.2, 2011 , pp. 173-181 More about this Journal
Abstract
In this paper, we propose a half mode substrate integrated waveguide(HMSIW) balanced bandpass filter to yield improved isolation between output ports. In order to achieve good isolation, resistive coupling slot is employed in HMSIW filter. The measurement results show that the insertion losses($S_{21}$, $S_{31}$) are $5.4{\pm}0.2$ dB and input return loss($S_{11}$) is more than 10 dB from 5.8 GHz to 6.4 GHz. Moreover isolation between output ports is larger than 18 dB and phase difference of output ports is $180{\pm}10^{\circ}$.
Keywords
Half Mode Substrate Integrated Waveguide(HMSIW); Balanced Filter; Balun;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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