Grating lobe suppression in rotationally tiled arrays

Abdullah Alshammary, Stephan Weiss, Sultan Almorqi

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

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Abstract

Uniform placement of array elements limits its maximum frequency due to the formation of grating lobes. While non-uniform element or subarray spacing have significantly lower grating lobes, it reduces aperture efficiency and leads to arrays that are difficult to design and manufacture. We propose a modular asymmetric convex-shaped subarray to construct the array by rotation and translation, filling the aperture without overlaps or gaps. This new approach can achieve lower grating lobes compared to uniform array geometries. It can also lower design, manufacturing and operation costs by offering interoperable subarrays and provide array size flexibility.
Original languageEnglish
Title of host publication11th European Conference on Antennas and Propagation (EUCAP)
Place of PublicationPiscataway
PublisherIEEE
Number of pages4
Publication statusPublished - 18 Mar 2017

Keywords

  • subarray
  • grating lobes
  • plane tilling
  • tessellation
  • sensor arrays
  • signal wavelength
  • beamwidth
  • rotationally tiled arrays

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  • Cite this

    Alshammary, A., Weiss, S., & Almorqi, S. (2017). Grating lobe suppression in rotationally tiled arrays. In 11th European Conference on Antennas and Propagation (EUCAP) Piscataway: IEEE.