Compact dual-band stubless branch-line coupler
Compact dual-band stubless branch-line coupler
The implementation of microstrip nonuniform transmission lines (MNTLs) for dual-band branch-line coupler design is presented in this study. The proposed structure demonstrates dual-band performance, low insertion loss, and compact size in comparison with other prior proposed dual-band branch-line couplers. The current work fabricates an experimental dual-band branch-line couplers working at 0.9/1.8 GHz. Employing the stubless branches also leads to circuit miniaturization and achieves an overall size reduction up to 64.4%, compared with conventional stub tapped dual-band couplers. Also, stubless dual-band operation of the coupler causes the same phase relation between the two output signals at the two frequency bands. The measured results validate good dual-band performance.
1323-1331
Taravati, S.
0026f25d-c919-4273-b956-8fe9795b31ce
Khalaj-Amirhosseini, M.
e3438b93-e928-411f-b813-d40b58a25940
2012
Taravati, S.
0026f25d-c919-4273-b956-8fe9795b31ce
Khalaj-Amirhosseini, M.
e3438b93-e928-411f-b813-d40b58a25940
Taravati, S. and Khalaj-Amirhosseini, M.
(2012)
Compact dual-band stubless branch-line coupler.
Journal of Electromagnetic Waves and Applications, 26 (10), .
(doi:10.1080/09205071.2012.699393).
Abstract
The implementation of microstrip nonuniform transmission lines (MNTLs) for dual-band branch-line coupler design is presented in this study. The proposed structure demonstrates dual-band performance, low insertion loss, and compact size in comparison with other prior proposed dual-band branch-line couplers. The current work fabricates an experimental dual-band branch-line couplers working at 0.9/1.8 GHz. Employing the stubless branches also leads to circuit miniaturization and achieves an overall size reduction up to 64.4%, compared with conventional stub tapped dual-band couplers. Also, stubless dual-band operation of the coupler causes the same phase relation between the two output signals at the two frequency bands. The measured results validate good dual-band performance.
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Published date: 2012
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Local EPrints ID: 482588
URI: http://eprints.soton.ac.uk/id/eprint/482588
ISSN: 0920-5071
PURE UUID: 677d9fef-3f76-430e-a0cd-767929264ace
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Date deposited: 10 Oct 2023 17:00
Last modified: 17 Mar 2024 05:04
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Author:
S. Taravati
Author:
M. Khalaj-Amirhosseini
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