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Compact dual-band stubless branch-line coupler

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.

0920-5071
1323-1331
Taravati, S.
0026f25d-c919-4273-b956-8fe9795b31ce
Khalaj-Amirhosseini, M.
e3438b93-e928-411f-b813-d40b58a25940
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), 1323-1331. (doi:10.1080/09205071.2012.699393).

Record type: Article

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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More information

Published date: 2012

Identifiers

Local EPrints ID: 482588
URI: http://eprints.soton.ac.uk/id/eprint/482588
ISSN: 0920-5071
PURE UUID: 677d9fef-3f76-430e-a0cd-767929264ace
ORCID for S. Taravati: ORCID iD orcid.org/0000-0003-3992-0050

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Date deposited: 10 Oct 2023 17:00
Last modified: 06 Jun 2024 02:19

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Contributors

Author: S. Taravati ORCID iD
Author: M. Khalaj-Amirhosseini

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