Beam Optimization for 28 GHz Phased Array Utilizing Measurement Data

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Abstract

This paper presents beam optimization methods for a phased array operating at 28GHz. The phase of each antenna element is controlled with an element-specific 5-bit phase shifter. The amplitude of each element varies with the chosen phase shift state due to the antenna design. Each individual element is measured and based on the measurement data, the beam optimization for the maximum gain is done. The optimization increases the measured gain compared to the nominal case by 1.3dB at broadside. Furthermore, the element amplitude variation allows optimization for the lower side lobes to be done by finding the correctly weighted amplitudes. Taylor distribution is used for this optimization and the side-lobe level decreases 2.4dB for the broadside beam.

Original languageEnglish
Title of host publication14th European Conference on Antennas and Propagation, EuCAP 2020
PublisherIEEE
Number of pages5
ISBN (Electronic)9788831299008
DOIs
Publication statusPublished - Mar 2020
MoE publication typeA4 Article in a conference publication
EventEuropean Conference on Antennas and Propagation - Copenhagen, Denmark
Duration: 15 Mar 202020 Mar 2020
Conference number: 14

Publication series

NameProceedings of the European Conference on Antennas and Propagation
ISSN (Print)2164-3342

Conference

ConferenceEuropean Conference on Antennas and Propagation
Abbreviated titleEUCAP
CountryDenmark
CityCopenhagen
Period15/03/202020/03/2020

Keywords

  • Beam steering
  • Phase shifters
  • phased arrays

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