Design of a Compact Ultra-Wideband Bandpass Filter Using Inductively Compensated Parallel-Coupled Lines

An ultra-wideband bandpass filter (UWB-BPF) using inductively compensated parallel-coupled lines (ICPCL) is presented in this article. It consists of three circuits: a high-pass filter (HPF), a lowpass filter (LPF), and a transmission line. The HPF and the LPF are independently synthesized from the...

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Autores principales:	Meechai Jamsai, Niwat Angkawisittpan, Adisorn Nuan-On
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	inductively compensated parallel-coupled lines bandpass filter ultra-wideband Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/796d78f5c3cb4400948969097512079d
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spelling	oai:doaj.org-article:796d78f5c3cb4400948969097512079d2021-11-11T15:36:56ZDesign of a Compact Ultra-Wideband Bandpass Filter Using Inductively Compensated Parallel-Coupled Lines10.3390/electronics102125752079-9292https://doaj.org/article/796d78f5c3cb4400948969097512079d2021-10-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/21/2575https://doaj.org/toc/2079-9292An ultra-wideband bandpass filter (UWB-BPF) using inductively compensated parallel-coupled lines (ICPCL) is presented in this article. It consists of three circuits: a high-pass filter (HPF), a lowpass filter (LPF), and a transmission line. The HPF and the LPF are independently synthesized from the ICPCL. The proposed filter can suppress unwanted frequencies in the upper stopband and increase the skirt slope of the frequency response in the transition bands. The fabricated UWB-BPF with compact size provides good passband performances, with insertion loss of better than −0.49 dB and return loss of better than −12 dB in the frequency range of 2.92–10.95 GHz (the bandwidth of 8.03 GHz). The 107% bandwidth is achieved. In addition, the proposed filter can suppress the spurious frequencies at 2<i>f</i><sub>0</sub>, which is greater than 30 dB. The measured results accord well with the simulation results. The novelty of the paper is the introduction of the ICPCL for the construction of the compact UWB-BPF.Meechai JamsaiNiwat AngkawisittpanAdisorn Nuan-OnMDPI AGarticleinductively compensated parallel-coupled linesbandpass filterultra-widebandElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2575, p 2575 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	inductively compensated parallel-coupled lines bandpass filter ultra-wideband Electronics TK7800-8360
spellingShingle	inductively compensated parallel-coupled lines bandpass filter ultra-wideband Electronics TK7800-8360 Meechai Jamsai Niwat Angkawisittpan Adisorn Nuan-On Design of a Compact Ultra-Wideband Bandpass Filter Using Inductively Compensated Parallel-Coupled Lines
description	An ultra-wideband bandpass filter (UWB-BPF) using inductively compensated parallel-coupled lines (ICPCL) is presented in this article. It consists of three circuits: a high-pass filter (HPF), a lowpass filter (LPF), and a transmission line. The HPF and the LPF are independently synthesized from the ICPCL. The proposed filter can suppress unwanted frequencies in the upper stopband and increase the skirt slope of the frequency response in the transition bands. The fabricated UWB-BPF with compact size provides good passband performances, with insertion loss of better than −0.49 dB and return loss of better than −12 dB in the frequency range of 2.92–10.95 GHz (the bandwidth of 8.03 GHz). The 107% bandwidth is achieved. In addition, the proposed filter can suppress the spurious frequencies at 2<i>f</i><sub>0</sub>, which is greater than 30 dB. The measured results accord well with the simulation results. The novelty of the paper is the introduction of the ICPCL for the construction of the compact UWB-BPF.
format	article
author	Meechai Jamsai Niwat Angkawisittpan Adisorn Nuan-On
author_facet	Meechai Jamsai Niwat Angkawisittpan Adisorn Nuan-On
author_sort	Meechai Jamsai
title	Design of a Compact Ultra-Wideband Bandpass Filter Using Inductively Compensated Parallel-Coupled Lines
title_short	Design of a Compact Ultra-Wideband Bandpass Filter Using Inductively Compensated Parallel-Coupled Lines
title_full	Design of a Compact Ultra-Wideband Bandpass Filter Using Inductively Compensated Parallel-Coupled Lines
title_fullStr	Design of a Compact Ultra-Wideband Bandpass Filter Using Inductively Compensated Parallel-Coupled Lines
title_full_unstemmed	Design of a Compact Ultra-Wideband Bandpass Filter Using Inductively Compensated Parallel-Coupled Lines
title_sort	design of a compact ultra-wideband bandpass filter using inductively compensated parallel-coupled lines
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/796d78f5c3cb4400948969097512079d
work_keys_str_mv	AT meechaijamsai designofacompactultrawidebandbandpassfilterusinginductivelycompensatedparallelcoupledlines AT niwatangkawisittpan designofacompactultrawidebandbandpassfilterusinginductivelycompensatedparallelcoupledlines AT adisornnuanon designofacompactultrawidebandbandpassfilterusinginductivelycompensatedparallelcoupledlines
_version_	1718434991866642432

Design of a Compact Ultra-Wideband Bandpass Filter Using Inductively Compensated Parallel-Coupled Lines

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