Optimizing amplitude distribution in a feed array to control side-lobe levels of a beam-steering metasurface

Khushboo Singh, Muhammad U. Afzal, David Bulger, Maria Kovaleva, Karu P. Esselle*

*Corresponding author for this work

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

Abstract

An attempt to establish analogy between the antenna array pattern synthesis theory and the metasurface beam-steering control is presented in this paper. Beam steering has been achieved by using a phase transformation metasurface, and the side-lobe level (SLL) reduction has been achieved by optimizing the excitation amplitude of feed array. Optimization has been performed by a simple evolutionary approach based on cross-entropy (CE) method, and the results validate the efficiency of the algorithm, as well as verify the concept of SLL control using excitation amplitude manipulation.

Original languageEnglish
Title of host publication 2019 URSI International Symposium on Electromagnetic Theory (EMTS)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-4
Number of pages4
ISBN (Electronic)9781946815064
ISBN (Print)9781538655931
DOIs
Publication statusPublished - 2019
Event2019 URSI International Symposium on Electromagnetic Theory, EMTS 2019 - San Diego, United States
Duration: 27 May 201931 May 2019

Conference

Conference2019 URSI International Symposium on Electromagnetic Theory, EMTS 2019
CountryUnited States
CitySan Diego
Period27/05/1931/05/19

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Singh, K., Afzal, M. U., Bulger, D., Kovaleva, M., & Esselle, K. P. (2019). Optimizing amplitude distribution in a feed array to control side-lobe levels of a beam-steering metasurface. In 2019 URSI International Symposium on Electromagnetic Theory (EMTS) (pp. 1-4). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.23919/URSI-EMTS.2019.8931531