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Smart antenna beamforming network

Abdul Rahim, Sharul Kamal and Peter, Gardner (2008) Smart antenna beamforming network. In: Recent Developments In Small Size Antenna. Penerbit UTM, Johor, pp. 23-31. ISBN 978-983-52-0640-5

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Abstract

Smart Antenna with RF beamforming capability can greatly improve the performance of the vehicle communication system by providing better link quality and high immunity to interference. Butler Matrix is a well-known beamforming network. It can be used for multibeam antennas. The Butler Matrix increases the system capacity and provides higher signal to interference ratio, consequently enhancing the overall system performance. Several studies have been conducted related to the cascading Butler Matrix. In an Multi Port Amplifier (MPA) application, a signal entering one port of the Butler Matrix is divided into equal parts. The signal is then amplified by all the amplifiers and then recombined by the combining Butler Matrix at the output port that corresponds to the particular input port.Suarez also reported that the introduction of the cascading Butler Matrices improves the performance of antenna parameters such as cross over and beam orthogonality.

Item Type:Book Section
Uncontrolled Keywords:antenna, beamforming, network
Subjects:T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:26488
Deposited By: Fazli Masari
Deposited On:18 Jul 2012 06:56
Last Modified:30 Apr 2013 03:37

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