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Compact 8x8 butler matrix for ISM band

Mitigation of interference due to multiple signals coexisting in the same frequency band can be achieved through the implementation of a smart antenna system that employs scanning of multiple and simultaneously available beams. These multiple and simultaneously available beams can be generated throu...

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Main Author: Cheung, Lester Ted Kong
Format: Thesis
Language:English
Published: 2005
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utm.my/id/eprint/4223/1/LesterCheungTedKongMFKE2005.pdf
http://eprints.utm.my/id/eprint/4223/
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spelling my.utm.42232018-01-16T07:23:21Z http://eprints.utm.my/id/eprint/4223/ Compact 8x8 butler matrix for ISM band Cheung, Lester Ted Kong TK Electrical engineering. Electronics Nuclear engineering Mitigation of interference due to multiple signals coexisting in the same frequency band can be achieved through the implementation of a smart antenna system that employs scanning of multiple and simultaneously available beams. These multiple and simultaneously available beams can be generated through beamforming networks such as the Butler Matrix, of which its design is the focus of this thesis. By employing passive devices in a butterfly layout configuration, a completely planar microstrip 8x8 Butler Matrix to perform in the ISM Band of 2.4 GHz to 2.5 GHz was designed. Recently, research has been focusing on the miniaturization of passive microwave devices and components. Artificial Transmissions Lines is a relatively new method that achieves miniaturization of a transmission line through periodically loading the line capacitively in order to lower the phase velocity characteristic of a high impedance line to an appropriate value. The higher the impedance of the line in question, the greater the level of miniaturization obtained. 40 percent area savings and 59 percent area savings were achieved in the design of the passive component hybrid and crossover structures, respectively, compared to conventional design methods. Through the implementation of 12 hybrids, 8 fixed phase shifters and 16 crossover structures, the final layout of a compact Butler Matrix can be designed. Simulations were performed using Microwave Office electromagnetic packages. Design calculations were verified using MatchCad. 2005-03 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/4223/1/LesterCheungTedKongMFKE2005.pdf Cheung, Lester Ted Kong (2005) Compact 8x8 butler matrix for ISM band. Masters thesis, Universiti Teknologi Malaysia, Faculty of Electrical Engineering.
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/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Cheung, Lester Ted Kong
Compact 8x8 butler matrix for ISM band
description Mitigation of interference due to multiple signals coexisting in the same frequency band can be achieved through the implementation of a smart antenna system that employs scanning of multiple and simultaneously available beams. These multiple and simultaneously available beams can be generated through beamforming networks such as the Butler Matrix, of which its design is the focus of this thesis. By employing passive devices in a butterfly layout configuration, a completely planar microstrip 8x8 Butler Matrix to perform in the ISM Band of 2.4 GHz to 2.5 GHz was designed. Recently, research has been focusing on the miniaturization of passive microwave devices and components. Artificial Transmissions Lines is a relatively new method that achieves miniaturization of a transmission line through periodically loading the line capacitively in order to lower the phase velocity characteristic of a high impedance line to an appropriate value. The higher the impedance of the line in question, the greater the level of miniaturization obtained. 40 percent area savings and 59 percent area savings were achieved in the design of the passive component hybrid and crossover structures, respectively, compared to conventional design methods. Through the implementation of 12 hybrids, 8 fixed phase shifters and 16 crossover structures, the final layout of a compact Butler Matrix can be designed. Simulations were performed using Microwave Office electromagnetic packages. Design calculations were verified using MatchCad.
format Thesis
author Cheung, Lester Ted Kong
author_facet Cheung, Lester Ted Kong
author_sort Cheung, Lester Ted Kong
title Compact 8x8 butler matrix for ISM band
title_short Compact 8x8 butler matrix for ISM band
title_full Compact 8x8 butler matrix for ISM band
title_fullStr Compact 8x8 butler matrix for ISM band
title_full_unstemmed Compact 8x8 butler matrix for ISM band
title_sort compact 8x8 butler matrix for ism band
publishDate 2005
url http://eprints.utm.my/id/eprint/4223/1/LesterCheungTedKongMFKE2005.pdf
http://eprints.utm.my/id/eprint/4223/
_version_ 1643643999908528128
score 13.211869

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