Beamforming Limitations for Distributed Antenna Arrays Under Platform Positioning Deviations

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This article investigates beamforming limitations in a distributed antenna aperture aboard a Low Earth Orbit (LEO) satellite, focusing on platform displacement effects. While a larger aperture supports dense coverage via narrow beams, structural micromovements distort the radiation pattern. A fully digital beamforming approach using null placement is explored, but applying precoding at platform and intra-platform levels reveals performance constraints. The study outlines these limitations and highlights potential directions for future research to enhance system robustness.
Original languageEnglish
Title of host publication2025 International Symposium on Antennas and Propagation (ISAP)
PublisherIEEE
ISBN (Electronic)9784885523588
DOIs
Publication statusPublished - 3 Feb 2026
Event2025 International Symposium on Antennas and Propagation - Fukuoka, Japan
Duration: 27 Oct 202531 Oct 2025

Conference

Conference2025 International Symposium on Antennas and Propagation
Abbreviated titleISAP 2025
Country/TerritoryJapan
CityFukuoka
Period27/10/2531/10/25

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