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Spherical Harmonic Theory Investigations for Spherical Antenna Arrays

Marantis, L; Brennan, P; Kanatas, A; (2020) Spherical Harmonic Theory Investigations for Spherical Antenna Arrays. In: 2020 14th European Conference on Antennas and Propagation (EuCAP). IEEE: Copenhagen, Denmark. Green open access

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Abstract

Low Earth Orbit satellite communications can be significantly improved by the omni-directional beamscanning ability of the spherical antenna arrays. The signal processing of spherical antenna arrays is essentially enhanced by employing spherical harmonic theory. Spherical harmonics (or spherical modes) exploit sphere's perfect symmetry and demonstrate the feature to 'reproduce' themselves in the farfield. First, this paper justifies the cost and performance superiority of the spherical arrays compared to the planar case. In addition, it presents several spherical array investigations that utilize spherical harmonic theory, offering substantial enhancement and simplifying the computational level of the array processing.

Type: Proceedings paper
Title: Spherical Harmonic Theory Investigations for Spherical Antenna Arrays
Event: 14th European Conference on Antennas and Propagation (EuCAP) 2020
ISBN-13: 9788831299008
Open access status: An open access version is available from UCL Discovery
DOI: 10.23919/EuCAP48036.2020.9135326
Publisher version: https://doi.org/10.23919/EuCAP48036.2020.9135326
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10111750
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