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Characterization of tiled architecture for C-band 1-bit beam-steering transmitarray

Kozlov, Dmitry, Munina, Irina, Turalchuk, Pavel, Kirillov, Vitalii, Shitvov, Alexey and Zelenchuk, Dmitry 2021. Characterization of tiled architecture for C-band 1-bit beam-steering transmitarray. Sensors 21 (4) , 1259. 10.3390/s21041259

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Abstract

A new implementation of a beam-steering transmitarray is proposed based on the tiled array architecture. Each pixel of the transmitarray is manufactured as a standalone unit which can be hard-wired for specific transmission characteristics. A set of complementary units, providing reciprocal phase-shifts, can be assembled in a prescribed spatial phase-modulation pattern to perform beam steering and beam forming in a broad spatial range. A compact circuit model of the tiled unit cell is proposed and characterized with full-wave electromagnetic simulations. Waveguide measurements of a prototype unit cell have been carried out. A design example of a tiled 10 × 10-element 1-bit beam-steering transmitarray is presented and its performance benchmarked against the conventional single-panel, i.e., unibody, counterpart. Prototypes of the tiled and single-panel C-band transmitarrays have been fabricated and tested, demonstrating their close performance, good agreement with simulations and a weak effect of fabrication tolerances. The proposed transmitarray antenna configuration has great potential for fifth-generation (5G) communication systems.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: MDPI
ISSN: 1424-8220
Date of First Compliant Deposit: 28 July 2021
Date of Acceptance: 6 February 2021
Last Modified: 03 Aug 2021 15:15
URI: https://orca.cardiff.ac.uk/id/eprint/142995

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