High‐performance balanced dual‐band bandpass filter with controllable bandwidth and frequency ratio

In this study, a novel high‐performance balanced dual‐band bandpass filter (BPF) with controllable bandwidth and frequency ratio is proposed. The symmetrical dual‐band bandpass characteristics on both sides of the center frequency f0 can be achieved by cascading two one‐wavelength edge‐coupled ring...

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Veröffentlicht in:	Microwave and optical technology letters 2024-07, Vol.66 (7), p.n/a
Hauptverfasser:	Zhao, Shipeng, Wang, Zhongbao, Liu, Hongmei, Gao, Mingming, Fang, Shaojun
Format:	Artikel
Sprache:	eng
Schlagworte:	balanced bandpass filter Bandpass filters Controllability Coupled modes dual‐band bandpass edge‐coupled ring resonator
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creator	Zhao, Shipeng Wang, Zhongbao Liu, Hongmei Gao, Mingming Fang, Shaojun
description	In this study, a novel high‐performance balanced dual‐band bandpass filter (BPF) with controllable bandwidth and frequency ratio is proposed. The symmetrical dual‐band bandpass characteristics on both sides of the center frequency f0 can be achieved by cascading two one‐wavelength edge‐coupled ring resonators through coupling. To suppress the common‐mode (CM) noises, a high‐performance balanced dual‐band BPF is designed and analyzed. The elements affecting the controllable filtering bandwidth and frequency ratio are discussed. For practical verification, a microstrip prototype for GPS applications is manufactured and measured with great out‐of‐band rejection and excellent CM suppression.
doi_str_mv	10.1002/mop.34263
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subjects	balanced bandpass filter Bandpass filters Controllability Coupled modes dual‐band bandpass edge‐coupled ring resonator
title	High‐performance balanced dual‐band bandpass filter with controllable bandwidth and frequency ratio
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