Direct antenna modulator for m-QAM applications

Ford, K.L. orcid.org/0000-0002-1080-6193, Henthorn, S. orcid.org/0000-0003-1913-9283 and O'Farrell, T. orcid.org/0000-0002-7870-4097 (2020) Direct antenna modulator for m-QAM applications. In: Proceeding of 2020 14th European Conference on Antennas and Propagation (EuCAP). 2020 14th European Conference on Antennas and Propagation (EuCAP), 15-20 Mar 2020, Copenhagen, Denmark. IEEE . ISBN 9781728137124

Abstract

This paper introduces a concept for direct antenna modulation using a metasurface based antenna. The antenna can be controlled with the use of an external bias to control both the amplitude and phase of the transmitted signal, in a continuous way, to provide m-QAM direct antenna modulation. The DAM comprises of five metasurfaces, four of which control the transmitted phase through the use of a varactor diode, and the fifth uses a PIN diode to control the transmitted phase. Numerical simulations are presented which show that the transmitted phase can be varied over a 360° range with a amplitude dynamic range of 25dB.

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Authors/Creators:

Ford, K.L. https://orcid.org/0000-0002-1080-6193
Henthorn, S. https://orcid.org/0000-0003-1913-9283
O'Farrell, T. https://orcid.org/0000-0002-7870-4097

© 2020 European Association on Antennas and Propagation (EurAAP). Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works. Reproduced in accordance with the publisher's self-archiving policy.

Keywords:

Antennas; metamaterials; metasurfaces; direct antenna modulation

Dates:

Published (online): 8 July 2020
Published: 8 July 2020

Institution:

The University of Sheffield

Academic Units:

The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)

Funding Information:

Funder	Grant number
Engineering and Physical Sciences Research Council	EP/S008101/1

Depositing User:

Symplectic Sheffield

Date Deposited:

06 Oct 2022 16:07

Last Modified:

07 Oct 2022 11:27

Status:

Published

Publisher:

IEEE

Refereed:

Yes

Identification Number:

https://doi.org/10.23919/eucap48036.2020.9135268

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Direct antenna modulator for m-QAM applications

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