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


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
Publication statusPublished - 26 Apr 2024
Event18th European Conference on Antennas and Propagation - Glasgow, United Kingdom
Duration: 17 Mar 202422 Mar 2024
Conference number: 18


Conference18th European Conference on Antennas and Propagation
Abbreviated titleEuCAP 2024
Country/TerritoryUnited Kingdom
Internet address

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