Dual-polarized reconfigurable metasurface for leaky-wave antenna design using air-bridged Schottky diode technology

Ioannis Gerafentis, Evangelos Vassos, Alexandros Feresidis

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

Abstract

A novel dynamically reconfigurable leaky wave antenna capable of performing beamsteering based on a tunable metasurface that supports dual polarization and uses air-bridged Schottky diodes is presented. The electromagnetic waves produced by ideal dipoles in this case, propagate within a cavity which is formed by a Partially Reflective Surface (PRS) and a tuneable High-Impedance Surface (HIS). The beamsteering capability of the produced highly-directive beam is enabled by the air-bridged Schottky diodes embedded in the centre of each HIS unit cell by altering the capacitance of the diodes. This design operates at 37.5 GHz with a continuous beam scanning of 22° while the novel proposed HIS unit cell enables the support of dual-polarized excitation. The proposed leaky wave antenna design was simulated using CST Microwave Studio and the final array is characterized by acceptable losses of 1-5.4dB for this frequency band, a bandwidth of 2GHz while the directivity varies within 20.72-22.8 dBi.
Original languageEnglish
Title of host publication18th European Conference on Antennas and Propagation, EuCAP 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)9788831299091
ISBN (Print)9798350394436
DOIs
Publication statusPublished - 26 Apr 2024
Event18th European Conference on Antennas and Propagation - Glasgow, United Kingdom
Duration: 17 Mar 202422 Mar 2024
Conference number: 18
https://www.eucap2024.org/eucap2024proceeding

Conference

Conference18th European Conference on Antennas and Propagation
Abbreviated titleEuCAP 2024
Country/TerritoryUnited Kingdom
CityGlasgow
Period17/03/2422/03/24
Internet address

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