Synthesis of Low-Sidelobe Stepped-Amplitude Aperiodic Phased Arrays

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Abstract

A novel stepped-amplitude aperiodic phased array synthesis method is proposed. The presented technique is based on iterative convex element position perturbations and uses pre-defined excitation amplitudes. A 64-element irregular array with two discrete amplitude levels (0.5 at the edge-elements and 1 at the center-elements) is synthesized for demonstration purposes. The array achieves a side lobe level lower than - 30 dB and a directivity higher than 20 dBi within the given field-of-view (±60 degrees in azimuth and ±15 degrees in elevation). Through comparative studies of the array directivity, effective isotropic radiated power and maximal side lobe level with the ones of the uniformly-fed/amplitude-tapered periodic arrays and a uniformly-fed aperiodic array, it is shown that the proposed stepped-amplitude array provides the best complexity/performance trade-off.
Original languageEnglish
Title of host publication2021 15th European Conference on Antennas and Propagation (EuCAP)
PublisherIEEE
Number of pages5
ISBN (Electronic)978-88-31299-02-2
ISBN (Print)978-1-7281-8845-4
DOIs
Publication statusPublished - 2021
EventEuCAP 2021: 15th European Conference on Antennas and Propagation (EuCAP) - Virtual Conference at Dusseldorf, Germany
Duration: 22 Mar 202126 Mar 2021
https://www.eucap.org/

Conference

ConferenceEuCAP 2021
Abbreviated titleEuCAP 2021
CountryGermany
CityVirtual Conference at Dusseldorf
Period22/03/2126/03/21
Internet address

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care

Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • array synthesis
  • phased arrays
  • aperiodic arrays
  • stepped amplitude arrays

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