Conformal Transmitarray for Scan Loss Mitigation with Thinned Reconfiguration

T. A. Hill; J. R. Kelly; M. Khalily; T. W. C. Brown

doi:10.13140/RG.2.2.31256.03844

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Conformal Transmitarray for Scan Loss Mitigation with Thinned Reconfiguration

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Conformal Transmitarray for Scan Loss Mitigation with Thinned Reconfiguration

T. A. Hill, J. R. Kelly, M. Khalily and T. W. C. Brown

Proceedings of the 2019 13th European Conference on Antennas and Propagation (EuCAP)

Institute of Electrical and Electronics Engineers (IEEE)

2019 13th European Conference on Antennas and Propagation (EuCAP) (Krakow, Poland, 05/04/2019)

31/03/2019

DOI: https://doi.org/10.13140/RG.2.2.31256.03844

Abstract

Phase shifting surface; Active radome; Millimeter wave antennas

A conformal transmitarray with thinned control is presented, operating at 28 GHz. Its side panels are rotated to align with the maximum steering angle, increasing the gain and reducing the scan loss. The transmitarray is fed by an 8-element linear phased array antenna. Beam focusing to +/- 53 degrees is demonstrated for two different directions, using combinations of crossed-slot unit cells. A unit cell placement rule is proposed to significantly reduce (i.e. thin) the required number of reconfigurable unit cells. A filling factor of 43% was achieved compared to a fully populated design. This reduces the cost and biasing complexity. By minimising scan loss, this antenna could improve the performance of 5G small-cell access points.

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Title: Conformal Transmitarray for Scan Loss Mitigation with Thinned Reconfiguration
Creators: T. A. Hill
J. R. Kelly
M. Khalily
T. W. C. Brown
Publication Details: Proceedings of the 2019 13th European Conference on Antennas and Propagation (EuCAP)
Conference: 2019 13th European Conference on Antennas and Propagation (EuCAP) (Krakow, Poland, 05/04/2019)
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date published: 31/03/2019
Date submitted: 01/02/2019
Grant note: Funder: Engineering and Physical Sciences Research Council (EPSRC) | Grant Title: MILLIBAN project | Grant ID: EP/P008402/1
Identifiers: 99511645902346
Copyright: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Academic Unit: School of Computer Science and Electronic Engineering
Resource Type: Conference presentation

Conformal Transmitarray for Scan Loss Mitigation with Thinned Reconfiguration

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