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A novel design of Butler matrix using optimised size of branch-line coupler

Recent development shows that the reduced size couplers are becoming potential building bl°Cks for the growing wireless communications market. This paper presents a new design and realisation of four ports Butler Matrix using the reduced size of branch-line coupler operating at 1.8GHz. The purpose i...

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Main Authors:	Abd. Rahim, Sharul Kamal, Jizat, N. M., Rahman, T. A., Geok, T. K., Reza, A. W.
Format:	Article
Published:	2010
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/22816/
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id	my.utm.22816
record_format	eprints
spelling	my.utm.228162018-11-30T06:22:29Z http://eprints.utm.my/id/eprint/22816/ A novel design of Butler matrix using optimised size of branch-line coupler Abd. Rahim, Sharul Kamal Jizat, N. M. Rahman, T. A. Geok, T. K. Reza, A. W. TK Electrical engineering. Electronics Nuclear engineering Recent development shows that the reduced size couplers are becoming potential building bl°Cks for the growing wireless communications market. This paper presents a new design and realisation of four ports Butler Matrix using the reduced size of branch-line coupler operating at 1.8GHz. The purpose is to reduce the size of branch-line coupler to agree with the application requirements, e.g., mobile applications. Butler Matrix generally consists of branch-line coupler, crossover, and phase shifters. The branch-line coupler has been used as the functional and smart component in constructing the planar of 4×4 Butler Matrix. Using the two-step stubs impedance, the size of the branch-line coupler is optimised in this study. The obtained results show that the area of branch-line coupler has been reduced to 66% compared to the normal size branchline coupler. Besides, the reduced size coupler shows the same performance like the normal coupler, maintains lower manufacturing cost and miniaturisation in size. The results obtained from this study show satisfactory performance and good agreement with the theoretical results. 2010 Article PeerReviewed Abd. Rahim, Sharul Kamal and Jizat, N. M. and Rahman, T. A. and Geok, T. K. and Reza, A. W. (2010) A novel design of Butler matrix using optimised size of branch-line coupler. Journal of Optoelectronics and Advanced Materials, 12 (10). 2031 - 2039.
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Abd. Rahim, Sharul Kamal Jizat, N. M. Rahman, T. A. Geok, T. K. Reza, A. W. A novel design of Butler matrix using optimised size of branch-line coupler
description	Recent development shows that the reduced size couplers are becoming potential building bl°Cks for the growing wireless communications market. This paper presents a new design and realisation of four ports Butler Matrix using the reduced size of branch-line coupler operating at 1.8GHz. The purpose is to reduce the size of branch-line coupler to agree with the application requirements, e.g., mobile applications. Butler Matrix generally consists of branch-line coupler, crossover, and phase shifters. The branch-line coupler has been used as the functional and smart component in constructing the planar of 4×4 Butler Matrix. Using the two-step stubs impedance, the size of the branch-line coupler is optimised in this study. The obtained results show that the area of branch-line coupler has been reduced to 66% compared to the normal size branchline coupler. Besides, the reduced size coupler shows the same performance like the normal coupler, maintains lower manufacturing cost and miniaturisation in size. The results obtained from this study show satisfactory performance and good agreement with the theoretical results.
format	Article
author	Abd. Rahim, Sharul Kamal Jizat, N. M. Rahman, T. A. Geok, T. K. Reza, A. W.
author_facet	Abd. Rahim, Sharul Kamal Jizat, N. M. Rahman, T. A. Geok, T. K. Reza, A. W.
author_sort	Abd. Rahim, Sharul Kamal
title	A novel design of Butler matrix using optimised size of branch-line coupler
title_short	A novel design of Butler matrix using optimised size of branch-line coupler
title_full	A novel design of Butler matrix using optimised size of branch-line coupler
title_fullStr	A novel design of Butler matrix using optimised size of branch-line coupler
title_full_unstemmed	A novel design of Butler matrix using optimised size of branch-line coupler
title_sort	novel design of butler matrix using optimised size of branch-line coupler
publishDate	2010
url	http://eprints.utm.my/id/eprint/22816/
_version_	1643647405422280704
score	13.211869

A novel design of Butler matrix using optimised size of branch-line coupler

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