A Polarization Insensitive and Angularly Stable Reconfigurable Unit Cell for Reconfigurable Intelligent Surfaces

A tunable unit cell is the building block of Reconfigurable Intelligent Surfaces (RIS). By controlling the reflection properties of individual unit cells, the propagation of the reflected electromagnetic (EM) wave can be manipulated in a programmable way. In this paper a new reconfigurable unit cell...

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Bibliographic Details
Published in2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI) pp. 1961 - 1962
Main Authors Saikia, Mondeep, Garcia-Fernandez, Maria, Alvarez-Narciandi, Guillermo, Babar Abbasi, Muhammad Ali, Cotton, Simon, Yurduseven, Okan
Format Conference Proceeding
LanguageEnglish
Published IEEE 14.07.2024
Subjects
Antennas and propagation
Conferences
Electromagnetic scattering
Electromagnetics
PIN photodiodes
Reconfigurable intelligent surfaces
Reflection
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Summary:A tunable unit cell is the building block of Reconfigurable Intelligent Surfaces (RIS). By controlling the reflection properties of individual unit cells, the propagation of the reflected electromagnetic (EM) wave can be manipulated in a programmable way. In this paper a new reconfigurable unit cell for RIS applications is proposed. The unit cell uses PIN diodes to switch between two reflection states which has a phase difference close to 180° over the frequency range of 7.25 to 8.5 GHz. The design is polarization insensitive, and the reflection responses are stable for oblique incidence of angle up to 45° for both TE and TM modes.
ISSN:1947-1491
DOI:10.1109/AP-S/INC-USNC-URSI52054.2024.10686461