Sidelobe Level Suppression and Scan-Loss Compensation in A Wide-Angular Scanning Linear Array Using Subarrays Amplitude Control

Fannush S. Akbar, Leo Ligthart, Gamantyo Hendrantoro, Ioan E. Lager

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

An improvement of the wide-angular scan-loss compensation (SLC) and sidelobe level (SLL) in a small linear array with 23 elements is discussed. The array integrates small subarrays with an optimized pattern for SLC, while the SLL suppression is obtained by using a combination of elements with phase steering only and elements with amplitude/phase control in the center. This combination leads to a less number of T/R module. When the antenna is scanned to ±60°, a maximum first and peak SLL (FSLL and PSLL) of -15.1 dB are obtained. In addition, a -4.6 scan-loss is obtained, it means that the SLC is 2.4 dB with a Cavity-backed U-slotted Patch (CUP) antenna. These performance results are very attractive in particular for a small linear array with wide angular scanning capability.

Original languageEnglish
Title of host publication2020 50th European Microwave Conference, EuMC 2020
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages352-355
Number of pages4
ISBN (Electronic)9782874870590
DOIs
Publication statusPublished - 2021
Event50th European Microwave Conference, EuMC 2020 - Utrecht, Netherlands
Duration: 12 Jan 202114 Jan 2021

Publication series

Name2020 50th European Microwave Conference, EuMC 2020

Conference

Conference50th European Microwave Conference, EuMC 2020
CountryNetherlands
CityUtrecht
Period12/01/2114/01/21

Keywords

  • matching amplitude
  • scan-loss compensation
  • sidelobe suppression
  • subarray

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