Wideband 2-Dimensional scanning planar subarray

Abdullah Alshammary, Stephan Weiss, John Soraghan, Sultan Almorqi

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Abstract

Achieving frequency invariance in antenna array requires linear-phase system to maintain frequency independent time lag. For example True Time Delay or tapped delay line. In this paper, the array elements are divided into subarrays. Then all subarrays are steered towards the desired azimuth direction, while the wideband property is preserved by exploiting the subarray two-dimensional structure as a sensor delay line. Each subarray pattern is then individually rotated around the desired elevation direction. Eventually superposition of subarrays is maximally constructive towards the desired direction and partially constructive or destructive everywhere else. Two frequency invariant beamformers are used. These are inverse DFT and Least squares. Results are compared with wideband wideband one-dimensional pattern syntheses of the same design methods in power concentration.
Original languageEnglish
Title of host publication10th IMA International Conference on Mathematics in Signal Processing
Number of pages4
Publication statusPublished - 15 Dec 2014
Event10th IMA International Conference on Mathematics in Signal Processing - IET Austin Court, Birmingham, United Kingdom
Duration: 15 Dec 201417 Sep 2016
http://www.ima.org.uk/

Conference

Conference10th IMA International Conference on Mathematics in Signal Processing
Abbreviated titleIMA 2014
CountryUnited Kingdom
CityBirmingham
Period15/12/1417/09/16
Internet address

Keywords

  • sensor delay line
  • wideband beamforming
  • subarray
  • frequency independent time lag
  • azimuth direction
  • wideband

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    Alshammary, A., Weiss, S., Soraghan, J., & Almorqi, S. (2014). Wideband 2-Dimensional scanning planar subarray. In 10th IMA International Conference on Mathematics in Signal Processing