Ball, E.A. orcid.org/0000-0002-6283-5949 and Joseph, S.D. (2025) A steerable 8 element 73 GHz transmitting time modulated array. In: 2025 19th European Conference on Antennas and Propagation (EuCAP). EuCAP 2025: 19th European Conference on Antennas and Propagation, 30 Mar - 04 Apr 2025, Stockholm, Sweden. Institute of Electrical and Electronics Engineers (IEEE) ISBN 9798350366327
Abstract
The Time Modulated Array (TMA) is a type of phased array rarely seen applied, though it has advantages over other approaches. A TMA produces a set of radiated beams that are harmonically related to a set of digital control signals. In this paper the first mmWave beam steerable prototype TMA operating at 73 GHz, using bespoke GaAs integrated circuits, is presented. The beam steerable system consists of RF hardware and an FPGA controller. Laboratory radiated tests show good agreement to theoretical expectations. A beam steering of 24 degrees is reported (i.e. +/- 24 degrees total achievable range) for the TMA first harmonic beam, and 44 degrees for the second harmonic beam. The peak measured radiated array gain is -5 dBi. The maximum capable radiated power is +21.9 dBm. An increased level of integration on-chip, based on the existing architecture, could provide an array gain of +3 dBi.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2025 The Author(s). Except as otherwise noted, this author-accepted version of a paper published in 2025 19th European Conference on Antennas and Propagation (EuCAP) is made available via the University of Sheffield Research Publications and Copyright Policy under the terms of the Creative Commons Attribution 4.0 International License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ |
Keywords: | antennas; time modulated arrays; mmWave circuits; pattern measurements |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > School of Electrical and Electronic Engineering |
Funding Information: | Funder Grant number UK RESEARCH AND INNOVATION MR/T043164/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 07 Apr 2025 16:28 |
Last Modified: | 28 May 2025 08:05 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
Refereed: | Yes |
Identification Number: | 10.23919/EuCAP63536.2025.10999599 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:225280 |