Low-loss narrowband filtering switch based on coaxial resonators

Li, HY; Xu, JX; Zhang, XY; Zhao, XL

Low-loss narrowband filtering switch based on coaxial resonators

Li, HY Xu, JX

Zhang, XY Zhao, XL

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Publication Type:: Journal Article
Citation:: IEEE Access, 2018, 6 pp. 47717 - 47722
Issue Date:: 2018-08-24

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Field	Value	Language
dc.contributor.author	Li, HY	en_US
dc.contributor.author	Xu, JX https://orcid.org/0000-0003-3623-3837	en_US
dc.contributor.author	Zhang, XY	en_US
dc.contributor.author	Zhao, XL	en_US
dc.date.issued	2018-08-24	en_US
dc.identifier.citation	IEEE Access, 2018, 6 pp. 47717 - 47722	en_US
dc.identifier.uri	http://hdl.handle.net/10453/132139
dc.description.abstract	© 2013 IEEE. In this paper, a narrowband filtering switch with low loss and high selectivity is presented based on coaxial resonators for the first time. PIN diodes mounted on the printed circuit boards are embedded into a coaxial filter to enable ON and OFF states. In the ON-state, the PIN diodes are turned OFF, which do not introduce the loss and affect the linearity. Two transmission zeros are generated by a novel feeding structure, which improves the skirt selectivity. In the OFF-state, the PIN diodes are turned on. Then, lumped capacitors are loaded to the coaxial resonators so that the resonant frequencies of the resonators are changed. The passband at the operating frequency cannot be formed, resulting in high isolation. For demonstration, the coaxial-resonator-based filtering switch is designed and fabricated. Good agreement between simulated and measured results verifies the proposed ideas. Comparison with other reported filtering switches is given. The proposed filtering switch shows the advantages of high Q-factor, relatively compact size, and wide stopband responses, which is attractive in wireless systems.	en_US
dc.relation.ispartof	IEEE Access	en_US
dc.relation.isbasedon	10.1109/ACCESS.2018.2867186	en_US
dc.title	Low-loss narrowband filtering switch based on coaxial resonators	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	en_US
utslib.for	08 Information and Computing Sciences	en_US
utslib.for	09 Engineering	en_US
utslib.for	10 Technology	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
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	6	en_US

Abstract:

© 2013 IEEE. In this paper, a narrowband filtering switch with low loss and high selectivity is presented based on coaxial resonators for the first time. PIN diodes mounted on the printed circuit boards are embedded into a coaxial filter to enable ON and OFF states. In the ON-state, the PIN diodes are turned OFF, which do not introduce the loss and affect the linearity. Two transmission zeros are generated by a novel feeding structure, which improves the skirt selectivity. In the OFF-state, the PIN diodes are turned on. Then, lumped capacitors are loaded to the coaxial resonators so that the resonant frequencies of the resonators are changed. The passband at the operating frequency cannot be formed, resulting in high isolation. For demonstration, the coaxial-resonator-based filtering switch is designed and fabricated. Good agreement between simulated and measured results verifies the proposed ideas. Comparison with other reported filtering switches is given. The proposed filtering switch shows the advantages of high Q-factor, relatively compact size, and wide stopband responses, which is attractive in wireless systems.

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http://hdl.handle.net/10453/132139