A Balanced Tri-Band Substrate Integrated Waveguide Bandpass Filter With High Selectivity

This paper proposed a balanced tri-band bandpass filter (BPF) with high selectivity based on substrate integrated waveguide (SIW) technology. The tri-band filtering response and multiple transmission zeros (TZs) are attained by elaborately merging cascaded quadruplet (CQ) topology and split topology...

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Main Authors: Li Min, Mingyue Pan, Dawei Wang, Zhenhai Luo, Congcai Xu
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-06-01
Series:Frontiers in Physics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphy.2022.956745/full
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author Li Min
Mingyue Pan
Dawei Wang
Zhenhai Luo
Congcai Xu
author_facet Li Min
Mingyue Pan
Dawei Wang
Zhenhai Luo
Congcai Xu
author_sort Li Min
collection DOAJ
description This paper proposed a balanced tri-band bandpass filter (BPF) with high selectivity based on substrate integrated waveguide (SIW) technology. The tri-band filtering response and multiple transmission zeros (TZs) are attained by elaborately merging cascaded quadruplet (CQ) topology and split topology. The proposed balanced tri-band bandpass filter is designed, which integrates high selectivity differential-mode (DM) transmission and good common-mode suppression by cleverly placing TE102-mode SIW cavity on the symmetric plane. To verify the proposed concept, a prototype of balanced tri-band BPF operating at 9.33, 9.67, and 10.02 GHz has been implemented. Measured results show eight TZs at out of DM passbands and more than 35 dB CM suppression within the DM passbands, which agree well with the simulated results.
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spelling doaj.art-cd9740789ed94a7988cfefbce17eb1e82022-12-22T00:22:34ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-06-011010.3389/fphy.2022.956745956745A Balanced Tri-Band Substrate Integrated Waveguide Bandpass Filter With High SelectivityLi Min0Mingyue Pan1Dawei Wang2Zhenhai Luo3Congcai Xu4School of Information Engineering, Suqian University, Suqian, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing, ChinaSchool of Information Engineering, Suqian University, Suqian, ChinaThis paper proposed a balanced tri-band bandpass filter (BPF) with high selectivity based on substrate integrated waveguide (SIW) technology. The tri-band filtering response and multiple transmission zeros (TZs) are attained by elaborately merging cascaded quadruplet (CQ) topology and split topology. The proposed balanced tri-band bandpass filter is designed, which integrates high selectivity differential-mode (DM) transmission and good common-mode suppression by cleverly placing TE102-mode SIW cavity on the symmetric plane. To verify the proposed concept, a prototype of balanced tri-band BPF operating at 9.33, 9.67, and 10.02 GHz has been implemented. Measured results show eight TZs at out of DM passbands and more than 35 dB CM suppression within the DM passbands, which agree well with the simulated results.https://www.frontiersin.org/articles/10.3389/fphy.2022.956745/fullbalanced bandpass filtersplit topologytri-bandsubstrate integrated waveguidehigh selectivity
spellingShingle Li Min
Mingyue Pan
Dawei Wang
Zhenhai Luo
Congcai Xu
A Balanced Tri-Band Substrate Integrated Waveguide Bandpass Filter With High Selectivity
Frontiers in Physics
balanced bandpass filter
split topology
tri-band
substrate integrated waveguide
high selectivity
title A Balanced Tri-Band Substrate Integrated Waveguide Bandpass Filter With High Selectivity
title_full A Balanced Tri-Band Substrate Integrated Waveguide Bandpass Filter With High Selectivity
title_fullStr A Balanced Tri-Band Substrate Integrated Waveguide Bandpass Filter With High Selectivity
title_full_unstemmed A Balanced Tri-Band Substrate Integrated Waveguide Bandpass Filter With High Selectivity
title_short A Balanced Tri-Band Substrate Integrated Waveguide Bandpass Filter With High Selectivity
title_sort balanced tri band substrate integrated waveguide bandpass filter with high selectivity
topic balanced bandpass filter
split topology
tri-band
substrate integrated waveguide
high selectivity
url https://www.frontiersin.org/articles/10.3389/fphy.2022.956745/full
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