Unconventional beamforming for quasi-hemispheric coverage of a phased array antenna

Zhengyu Peng, Tiancun Hu, Wangzhao Cui, Jiangtao Huangfu, Changzhi Li, Lixin Ran

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Abstract

It is usually difficult to synthesize a wide-angle coverage beam for an array antenna. In this letter, we propose an unconventional beamforming approach for a phased array antenna. By optimizing the orientations and depths of nulls of the radiation pattern, 'effective' quasi-hemispheric coverage with a single remaining null in the direction of no interest can be achieved. We modify an existing nulling algorithm to synthesize such a special radiation pattern by introducing a hypothetical incidence of interference and Gaussian white noise. Analysis and simulation of a five-element linear array antenna verified the effectiveness of the proposed approach.

Original languageEnglish
Article number6680657
Pages (from-to)1654-1657
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume12
DOIs
StatePublished - Dec 1 2013

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Keywords

  • Beamforming
  • nulling
  • phased array antenna
  • stochastic optimization
  • wide-angle coverage

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