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Design of frequency invariant beamformer for broadband arrays

Liu, W. and Weiss, S. (2007) Design of frequency invariant beamformer for broadband arrays. In: International Workshop on Antenna Technology, 2007-03-21 - 2007-03-23.

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Abstract

A simple method for the design of a class of arrays with frequency invariant beam patterns is proposed. Starting from the desired frequency invariant beam pattern of an n-D array, the proposed method uses a series of substitutions and an n-D inverse Fourier transform to obtain the desired frequency responses of the filters following each sensor. Given their desired frequency responses, these filters can be realized by either an analogue filter or a digital filter. Hence the proposed method can cover the design of broadband arrays with either analogue signals or discrete signals. Two design examples are provided, with one for a linear array and one for a planar array.

Item type: Conference or Workshop Item (Paper)
ID code: 36871
Keywords: fourier transforms , array signal processing , antenna radiation patterns , broadband antennas , digital filters , Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date deposited: 19 Jan 2012 16:11
Last modified: 04 Jan 2019 14:08
URI: https://strathprints.strath.ac.uk/id/eprint/36871
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