Mechanical Vibrations on a Deployable Nanosatellite Antenna: SAR Performance Analysis

Andrew C M Austin; Timothy Pelham; Simone Mencarelli; Annalisa Tresoldi; Mohammed  Dabboor; Michael Neve

doi:10.23919/EuCAP60739.2024.10501343

Mechanical Vibrations on a Deployable Nanosatellite Antenna: SAR Performance Analysis

Andrew C M Austin^*, Timothy Pelham, Simone Mencarelli, Annalisa Tresoldi, Mohammed Dabboor, Michael Neve

^*Corresponding author for this work

School of Electrical, Electronic and Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

2 Citations (Scopus)

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Abstract

The mechanical vibrations of a high-strain glass-fibre composite deployable X-band synthetic aperture radar (SAR) antenna structure are investigated using a finite element method. The antenna is approximately 2 m×0.3 m , and exhibits natural frequencies at 2.8 Hz and 7.6 Hz. The radiation patterns for a reflectarray formed from the structure are calculated using a ray-tracing approach for the nominal and mechanically deformed cases. The mechanically deformed antenna pattern is defocused, and a SAR system model shows this reduces the signal-to-noise ratio of a point scattering target by approximately 6 dB.

Original language	English
Title of host publication	2024 18th European Conference on Antennas and Propagation (EuCAP)
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Number of pages	5
ISBN (Electronic)	9788831299091
ISBN (Print)	9798350394436
DOIs	https://doi.org/10.23919/EuCAP60739.2024.10501343
Publication status	Published - 26 Apr 2024
Event	18th European Conference on Antennas and Propagation - Glasgow, United Kingdom Duration: 17 Mar 2024 → 22 Mar 2024 https://www.eucap2024.org/ (Link to conference event webpage.)

Publication series

Name	Proceedings of the European Conference on Antennas and Propagation
Publisher	IEEE
ISSN (Print)	2164-3342

Conference

Conference	18th European Conference on Antennas and Propagation
Abbreviated title	EuCAP 2024
Country/Territory	United Kingdom
City	Glasgow
Period	17/03/24 → 22/03/24
Internet address	https://www.eucap2024.org/ (Link to conference event webpage.)

Bibliographical note

Publisher Copyright:
© 2024 18th European Conference on Antennas and Propagation, EuCAP 2024. All Rights Reserved.

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Accepted author manuscript, 8.66 MBLicence: CC BY

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Austin, A. C. M., Pelham, T., Mencarelli, S., Tresoldi, A., Dabboor, M., & Neve, M. (2024). Mechanical Vibrations on a Deployable Nanosatellite Antenna: SAR Performance Analysis. In 2024 18th European Conference on Antennas and Propagation (EuCAP) Article 10501343 (Proceedings of the European Conference on Antennas and Propagation). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.23919/EuCAP60739.2024.10501343

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title = "Mechanical Vibrations on a Deployable Nanosatellite Antenna: SAR Performance Analysis",

abstract = "The mechanical vibrations of a high-strain glass-fibre composite deployable X-band synthetic aperture radar (SAR) antenna structure are investigated using a finite element method. The antenna is approximately 2 m×0.3 m , and exhibits natural frequencies at 2.8 Hz and 7.6 Hz. The radiation patterns for a reflectarray formed from the structure are calculated using a ray-tracing approach for the nominal and mechanically deformed cases. The mechanically deformed antenna pattern is defocused, and a SAR system model shows this reduces the signal-to-noise ratio of a point scattering target by approximately 6 dB.",

author = "Austin, \{Andrew C M\} and Timothy Pelham and Simone Mencarelli and Annalisa Tresoldi and Mohammed Dabboor and Michael Neve",

note = "Publisher Copyright: {\textcopyright} 2024 18th European Conference on Antennas and Propagation, EuCAP 2024. All Rights Reserved.; 18th European Conference on Antennas and Propagation, EuCAP 2024 ; Conference date: 17-03-2024 Through 22-03-2024",

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day = "26",

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language = "English",

isbn = "9798350394436",

series = "Proceedings of the European Conference on Antennas and Propagation",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

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address = "United States",

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Austin, ACM , Pelham, T, Mencarelli, S, Tresoldi, A, Dabboor, M & Neve, M 2024, Mechanical Vibrations on a Deployable Nanosatellite Antenna: SAR Performance Analysis. in 2024 18th European Conference on Antennas and Propagation (EuCAP)., 10501343, Proceedings of the European Conference on Antennas and Propagation, Institute of Electrical and Electronics Engineers (IEEE), 18th European Conference on Antennas and Propagation, Glasgow, United Kingdom, 17/03/24. https://doi.org/10.23919/EuCAP60739.2024.10501343

Mechanical Vibrations on a Deployable Nanosatellite Antenna: SAR Performance Analysis. / Austin, Andrew C M ; Pelham, Timothy; Mencarelli, Simone et al.
2024 18th European Conference on Antennas and Propagation (EuCAP). Institute of Electrical and Electronics Engineers (IEEE), 2024. 10501343 (Proceedings of the European Conference on Antennas and Propagation).

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Mechanical Vibrations on a Deployable Nanosatellite Antenna

T2 - 18th European Conference on Antennas and Propagation

AU - Austin, Andrew C M

AU - Pelham, Timothy

AU - Mencarelli, Simone

AU - Tresoldi, Annalisa

AU - Dabboor, Mohammed

AU - Neve, Michael

PY - 2024/4/26

Y1 - 2024/4/26

N2 - The mechanical vibrations of a high-strain glass-fibre composite deployable X-band synthetic aperture radar (SAR) antenna structure are investigated using a finite element method. The antenna is approximately 2 m×0.3 m , and exhibits natural frequencies at 2.8 Hz and 7.6 Hz. The radiation patterns for a reflectarray formed from the structure are calculated using a ray-tracing approach for the nominal and mechanically deformed cases. The mechanically deformed antenna pattern is defocused, and a SAR system model shows this reduces the signal-to-noise ratio of a point scattering target by approximately 6 dB.

AB - The mechanical vibrations of a high-strain glass-fibre composite deployable X-band synthetic aperture radar (SAR) antenna structure are investigated using a finite element method. The antenna is approximately 2 m×0.3 m , and exhibits natural frequencies at 2.8 Hz and 7.6 Hz. The radiation patterns for a reflectarray formed from the structure are calculated using a ray-tracing approach for the nominal and mechanically deformed cases. The mechanically deformed antenna pattern is defocused, and a SAR system model shows this reduces the signal-to-noise ratio of a point scattering target by approximately 6 dB.

U2 - 10.23919/EuCAP60739.2024.10501343

DO - 10.23919/EuCAP60739.2024.10501343

M3 - Conference Contribution (Conference Proceeding)

SN - 9798350394436

T3 - Proceedings of the European Conference on Antennas and Propagation

BT - 2024 18th European Conference on Antennas and Propagation (EuCAP)

PB - Institute of Electrical and Electronics Engineers (IEEE)

Y2 - 17 March 2024 through 22 March 2024

ER -

Austin ACM , Pelham T, Mencarelli S, Tresoldi A, Dabboor M, Neve M. Mechanical Vibrations on a Deployable Nanosatellite Antenna: SAR Performance Analysis. In 2024 18th European Conference on Antennas and Propagation (EuCAP). Institute of Electrical and Electronics Engineers (IEEE). 2024. 10501343. (Proceedings of the European Conference on Antennas and Propagation). doi: 10.23919/EuCAP60739.2024.10501343

Mechanical Vibrations on a Deployable Nanosatellite Antenna: SAR Performance Analysis

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