Off-broadside main beam design for frequency invariant beamformers

W. Liu, S. Weiss

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)
174 Downloads (Pure)

Abstract

In a previously proposed design method for frequency invariant beamforming, the design for the case of an off-broadside main beam is not satisfactory. After a detailed analysis, we propose two methods to overcome this problem: one is to increase the length of the FIR filter attached to each sensor, as a result, we need to sample the transformed desired response more densely in the associated direction; the other one is to design a broadside main beam first, then it is convolved with appropriate steering delay filters. Design examples show that the two methods can provide satisfactory results.
Original languageEnglish
Title of host publicationInternational ITG Workshop on Smart Antennas, 2008
PublisherIEEE
Pages190-194
Number of pages4
ISBN (Print)978-1-4244-1756-8
DOIs
Publication statusPublished - Feb 2008

Keywords

  • fourier transforms
  • antenna arrays
  • broadband antennas
  • frequency invariant beamformers
  • off-broadside main beam design
  • steering delay filters
  • broadband arrays

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