Miniaturized Dual-Band Bandpass Filter With Sharp Roll-Off Using Ring-Loaded Resonator

Miniaturized Dual-Band Bandpass Filter With Sharp Roll-Off Using Ring-Loaded Resonator

In this paper, a miniaturized dual-band bandpass filter (BPF) with good selectivity based on ring-loaded resonator (RLR) and 0° feed structure is proposed. First, the RLR is investigated theoretically and numerically, and a miniaturized Filter I is designed based on the RLR and filter syn...

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Bibliographic Details
Main Authors: Daotong Li, Ju-An Wang, Ying Liu, Zhen Chen
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Bandpass filter
compact
dual-band
0° feed structure
ring-loaded resonator
Online Access:https://ieeexplore.ieee.org/document/8928588/
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spelling doaj-9add9c5a0d3c402e9a092a53fa97cc7d2021-03-30T02:09:47ZengIEEEIEEE Access2169-35362020-01-018255882559510.1109/ACCESS.2019.29583908928588Miniaturized Dual-Band Bandpass Filter With Sharp Roll-Off Using Ring-Loaded ResonatorDaotong Li0https://orcid.org/0000-0003-4413-4847Ju-An Wang1https://orcid.org/0000-0002-1169-1391Ying Liu2https://orcid.org/0000-0002-3507-6393Zhen Chen3https://orcid.org/0000-0002-2109-2456Center of Communication and Tracking Telemetry Command, Chongqing University, Chongqing, ChinaCenter of Communication and Tracking Telemetry Command, Chongqing University, Chongqing, ChinaCenter of Communication and Tracking Telemetry Command, Chongqing University, Chongqing, ChinaCenter of Communication and Tracking Telemetry Command, Chongqing University, Chongqing, ChinaIn this paper, a miniaturized dual-band bandpass filter (BPF) with good selectivity based on ring-loaded resonator (RLR) and 0° feed structure is proposed. First, the RLR is investigated theoretically and numerically, and a miniaturized Filter I is designed based on the RLR and filter synthesis approach. Secondly, based on the coupling structure of the previous BPF and theory of 0° feed structure, the sub Filter II is formed. By appropriately adjusting the location of the I/O ports, the dual-band filter can be achieved simply. The proposed dual-band BPF provides compact size and satisfactory out-of-band rejection between each band with multiple transmission zeros (TZs) introduced by source/load coupling and a special coupling scheme.https://ieeexplore.ieee.org/document/8928588/Bandpass filtercompactdual-band0° feed structurering-loaded resonator
collection DOAJ
language English
format Article
sources DOAJ
author Daotong Li
Ju-An Wang
Ying Liu
Zhen Chen
spellingShingle Daotong Li
Ju-An Wang
Ying Liu
Zhen Chen
Miniaturized Dual-Band Bandpass Filter With Sharp Roll-Off Using Ring-Loaded Resonator
IEEE Access
Bandpass filter
compact
dual-band
0° feed structure
ring-loaded resonator
author_facet Daotong Li
Ju-An Wang
Ying Liu
Zhen Chen
author_sort Daotong Li
title Miniaturized Dual-Band Bandpass Filter With Sharp Roll-Off Using Ring-Loaded Resonator
title_short Miniaturized Dual-Band Bandpass Filter With Sharp Roll-Off Using Ring-Loaded Resonator
title_full Miniaturized Dual-Band Bandpass Filter With Sharp Roll-Off Using Ring-Loaded Resonator
title_fullStr Miniaturized Dual-Band Bandpass Filter With Sharp Roll-Off Using Ring-Loaded Resonator
title_full_unstemmed Miniaturized Dual-Band Bandpass Filter With Sharp Roll-Off Using Ring-Loaded Resonator
title_sort miniaturized dual-band bandpass filter with sharp roll-off using ring-loaded resonator
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2020-01-01
description In this paper, a miniaturized dual-band bandpass filter (BPF) with good selectivity based on ring-loaded resonator (RLR) and 0° feed structure is proposed. First, the RLR is investigated theoretically and numerically, and a miniaturized Filter I is designed based on the RLR and filter synthesis approach. Secondly, based on the coupling structure of the previous BPF and theory of 0° feed structure, the sub Filter II is formed. By appropriately adjusting the location of the I/O ports, the dual-band filter can be achieved simply. The proposed dual-band BPF provides compact size and satisfactory out-of-band rejection between each band with multiple transmission zeros (TZs) introduced by source/load coupling and a special coupling scheme.
topic Bandpass filter
compact
dual-band
0° feed structure
ring-loaded resonator
url https://ieeexplore.ieee.org/document/8928588/
work_keys_str_mv AT daotongli miniaturizeddualbandbandpassfilterwithsharprolloffusingringloadedresonator
AT juanwang miniaturizeddualbandbandpassfilterwithsharprolloffusingringloadedresonator
AT yingliu miniaturizeddualbandbandpassfilterwithsharprolloffusingringloadedresonator
AT zhenchen miniaturizeddualbandbandpassfilterwithsharprolloffusingringloadedresonator
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