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A Simple Method for Optimal Antenna Array Thinning Using a Broadside MaxGain Beamformer

Carlo Bencivenni (Institutionen för signaler och system, Antenner) ; Marianna Ivashina (Institutionen för signaler och system, Antenner) ; Rob Maaskant (Institutionen för signaler och system, Antenner)
7th European Conference on Antennas and Propagation, EuCAP 2013, Gothenburg, Sweden, 8-12 April 2013 (2164-3342). p. 1799-1802. (2013)
[Konferensbidrag, refereegranskat]

A simple and effective method for optimal antenna array thinning employing a broadside-scanned maximum gain beamformer is presented. Starting from a fully populated λ/2-spaced regular lattice, the array is thinned by progressively 'turning off' the element(s) with the lowest weight(s) of the weight vector realizing maximum gain. The accuracy and effectiveness of the method is validated against a rigorous combinatorial search method that can be used to find the optimal irregular array configuration solution in small to moderate-sized arrays. Furthermore, to evaluate the robustness of the proposed approach, the effects of beam steering have been investigated for linear arrays consisting of 10-40 antenna elements as well. Good results can be obtained for close to broadside scanned arrays, which is of importance for the directly radiating arrays that are currently being considered as modern satellite systems.

Nyckelord: array configuration optimization; array design; beamforming; signal processing; sparse arrays; thinning

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Denna post skapades 2013-09-02. Senast ändrad 2014-01-09.
CPL Pubid: 182671


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Institutioner (Chalmers)

Institutionen för signaler och system, Antenner (2005-2014)


Informations- och kommunikationsteknik
Elektroteknik och elektronik

Chalmers infrastruktur

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