High-Q-Factor Dual-Band Bandpass Filter and Filtering Switch Using Stub-Loaded Coaxial Resonators

Xu, JX; Zhang, XY; Yang, Y

High-Q-Factor Dual-Band Bandpass Filter and Filtering Switch Using Stub-Loaded Coaxial Resonators

Xu, JX

Zhang, XY Yang, Y

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Publication Type:: Conference Proceeding
Citation:: 2019 IEEE MTT-S International Wireless Symposium, IWS 2019 - Proceedings, 2019
Issue Date:: 2019-05-01

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Field	Value	Language
dc.contributor.author	Xu, JX https://orcid.org/0000-0003-3623-3837	en_US
dc.contributor.author	Zhang, XY	en_US
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156	en_US
dc.date.issued	2019-05-01	en_US
dc.identifier.citation	2019 IEEE MTT-S International Wireless Symposium, IWS 2019 - Proceedings, 2019	en_US
dc.identifier.isbn	9781728107165	en_US
dc.identifier.uri	http://hdl.handle.net/10453/138420
dc.description.abstract	© 2019 IEEE. In this paper, a dual-band bandpass filter (BPF) and a dual-band filtering switch are designed based on high-Q-factor dual-mode stub-loaded coaxial resonators. A novel coaxial resonator is constructed in a 3-D cavity structure with two open studs and one centrally-loaded short stub. Resonant frequencies of the coaxial resonator are studied to obtain the desired passband frequencies. The required external quality factors and coupling coefficients of a dual-band BPF can be achieved by properly arranging the feeding probes and controlling the coupling windows between the two resonators. Accordingly, a high-Q-factor dual-band BPF with good filtering responses is realized. Moreover, a transmission zero can be generated to obtain high isolation between two passbands. Based on this dual-band combine resonator filter, two pieces of printed circuit boards mounted with PIN diodes are embedded into the cavity filter structure to switch on and off the two passbands, resulting in a dual-band filtering switch. The proposed dual-band BPF and filtering switch have the advantages of high Q factors, which are attractive in the multi-band wireless systems.	en_US
dc.relation.ispartof	2019 IEEE MTT-S International Wireless Symposium, IWS 2019 - Proceedings	en_US
dc.relation.isbasedon	10.1109/IEEE-IWS.2019.8803878	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	High-Q-Factor Dual-Band Bandpass Filter and Filtering Switch Using Stub-Loaded Coaxial Resonators	en_US
dc.type	Conference Proceeding
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

© 2019 IEEE. In this paper, a dual-band bandpass filter (BPF) and a dual-band filtering switch are designed based on high-Q-factor dual-mode stub-loaded coaxial resonators. A novel coaxial resonator is constructed in a 3-D cavity structure with two open studs and one centrally-loaded short stub. Resonant frequencies of the coaxial resonator are studied to obtain the desired passband frequencies. The required external quality factors and coupling coefficients of a dual-band BPF can be achieved by properly arranging the feeding probes and controlling the coupling windows between the two resonators. Accordingly, a high-Q-factor dual-band BPF with good filtering responses is realized. Moreover, a transmission zero can be generated to obtain high isolation between two passbands. Based on this dual-band combine resonator filter, two pieces of printed circuit boards mounted with PIN diodes are embedded into the cavity filter structure to switch on and off the two passbands, resulting in a dual-band filtering switch. The proposed dual-band BPF and filtering switch have the advantages of high Q factors, which are attractive in the multi-band wireless systems.

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http://hdl.handle.net/10453/138420