Array Scattering Synthesis for Anomalous Deflection Using Passive Aperiodic Loadings

Sravan K.R. Vuyyuru*, Risto Valkonen*, Do Hoon Kwon, Sergei A. Tretyakov

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Abstract

Large-scale anomalous reflectors in reconfigurable intelligent surface applications require a scanning capability to deflect the beam to an arbitrary angle without incurring parasitic scattering. In this study, we propose a design methodology for linear loaded antenna arrays by synthesizing the scattering characteristics with respect to impedance loads to attain perfect anomalous reflection. It relies on accurate prediction of the induced element port currents and their associated scattering behavior for any given set of load impedances. We develop a linear array with a fixed half wavelength spacing for scanning into extreme deflection angles. Using continuous and discretized load reactances, the tunability prospect of high-efficiency anomalous reflection is demonstrated.

Original languageEnglish
Title of host publication18th European Conference on Antennas and Propagation, EuCAP 2024
PublisherIEEE
ISBN (Electronic)978-88-31299-09-1
DOIs
Publication statusPublished - 2024
MoE publication typeA4 Conference publication
EventEuropean Conference on Antennas and Propagation - Glasgow, United Kingdom
Duration: 17 Mar 202422 Mar 2024
Conference number: 18

Conference

ConferenceEuropean Conference on Antennas and Propagation
Abbreviated titleEuCAP
Country/TerritoryUnited Kingdom
CityGlasgow
Period17/03/202422/03/2024

Keywords

  • Anomalous reflector
  • aperiodic loadings
  • far-field scattering
  • receiving antennas
  • reconfigurable intelligent surface (RIS)

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