Millimetre-wave Phase Shifting Metasurface Element Enabled by Air-Bridged Schottky Diodes With Enhanced Performance

Savvas Chalkidis, Evangelos Vassos, Alexandros Feresidis

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


A parasitic element coupling technique is applied within the framework of this paper in order to improve the response of a tunable split patch unit cell. The initial design comprises a split patch with a Schottky diode in contact with both patches, modifying the total impedance under various bias voltages. The paramount goal of the study presented in this paper is the mitigation of losses of the resonances and increase of tuning range by exploiting the presence in the unit cell of an additional parasitic non-resonant element. As a result, the unit cell exhibits double the tuning range of the initial design with lower losses. CST Microwave Studio was used to evaluate the proposed design's tuning range and reflection characteristics.

Original languageEnglish
Title of host publication17th European Conference on Antennas and Propagation
Subtitle of host publicationEuCAP 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Print)9781665475419
Publication statusPublished - 31 May 2023
Externally publishedYes
Event17th European Conference on Antennas and Propagation - Florence, Italy
Duration: 26 Mar 202331 Mar 2023
Conference number: 17


Conference17th European Conference on Antennas and Propagation
Abbreviated titleEuCAP 2023

Cite this