Analysis of Coupled Cross-Shaped Resonator and Its Application to Differential Bandpass Filters Design

Analysis and applications of coupled cross-shaped resonator (CCSR) for fixed and fully reconfigurable differential bandpass filters (BPFs) design are focused in this paper. CCSRs with open and capacitive terminations are presented and discussed. One differential BPF named Filter I centered at 4.5 GH...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 2014-12, Vol.62 (12), p.2942-2953
Hauptverfasser: Wang, Hui, Tam, Kam-Weng, Choi, Wai-Wa, Zhuang, Wen-Yao, Ho, Sut-Kam, Kang, Wei, Wu, Wen
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container_issue 12
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container_title IEEE transactions on microwave theory and techniques
container_volume 62
creator Wang, Hui
Tam, Kam-Weng
Choi, Wai-Wa
Zhuang, Wen-Yao
Ho, Sut-Kam
Kang, Wei
Wu, Wen
description Analysis and applications of coupled cross-shaped resonator (CCSR) for fixed and fully reconfigurable differential bandpass filters (BPFs) design are focused in this paper. CCSRs with open and capacitive terminations are presented and discussed. One differential BPF named Filter I centered at 4.5 GHz with fixed differential-mode (DM) and common-mode (CM) responses using CCSR with open termination; and another one named Filter II using capacitive termination and loaded lumped capacitors offers fully reconfigurable DM center frequency, bandwidth and intuitive CM suppression control are proposed with very compact size (0.01λ0 2 ). Such that ultra-wide DM center frequency tuning range of 82% fractional tuning range with both constant absolute bandwidth (ABW) and constant fractional bandwidth (FBW), easy control of CM suppression level and rejected range are achieved, respectively. Their experimental characterizations are in good agreement with theoretical analysis validating a simple approach of fixed and fully reconfigurable differential BPFs design.
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CCSRs with open and capacitive terminations are presented and discussed. One differential BPF named Filter I centered at 4.5 GHz with fixed differential-mode (DM) and common-mode (CM) responses using CCSR with open termination; and another one named Filter II using capacitive termination and loaded lumped capacitors offers fully reconfigurable DM center frequency, bandwidth and intuitive CM suppression control are proposed with very compact size (0.01λ0 2 ). Such that ultra-wide DM center frequency tuning range of 82% fractional tuning range with both constant absolute bandwidth (ABW) and constant fractional bandwidth (FBW), easy control of CM suppression level and rejected range are achieved, respectively. 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subjects Band-pass filters
Bandwidth
Capacitance
Capacitors
Common mode (CM) suppression
coupled cross-shaped resonator (CCSR)
Couplings
differential bandpass filter (BPF)
Equivalent circuits
Filtering theory
reconfigurable
title Analysis of Coupled Cross-Shaped Resonator and Its Application to Differential Bandpass Filters Design
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