A Dual-Wideband Circular Polarized Shared-Aperture Antenna for CubeSat Applications

Salvatore Liberto, George Goussetis

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

Abstract

A dual-wideband circular polarized shared aperture antenna for CubeSat applications is presented in this paper. The antenna exploits two distinct components operating at separate bands. The S-band antenna is based on a stacked patch structure. Circular polarization with a single feeding point is achieved by truncating the corners of both patches. The X-band antenna adopts an S-inverted printed dipole where the upper patch of the S-band antenna acts as a ground plane. An alternative technique to feed the printed dipole avoiding the use of a balun is then proposed. The shared aperture antenna shows a -10dB impedance bandwidth from 1.92 to 2.16 GHz and from 7.2 to 10 GHz in S- and X- band, respectively. These performances are able to cover the downlink and uplink frequencies for the Earth Exploration Satellite Services (EESS). An AR below 3dB in the S-band and below 1.5dB in the X-band within the EESS bandwidths is achieved.

Original languageEnglish
Title of host publication2021 15th European Conference on Antennas and Propagation (EuCAP)
PublisherIEEE
ISBN (Electronic)9788831299022
DOIs
Publication statusPublished - 27 Apr 2021
Event15th European Conference on Antennas and Propagation 2021 - Dusseldorf, Germany
Duration: 22 Mar 202126 Mar 2021

Conference

Conference15th European Conference on Antennas and Propagation 2021
Abbreviated titleEuCAP 2021
CountryGermany
CityDusseldorf
Period22/03/2126/03/21

Keywords

  • aperture-shared
  • circular polarization
  • CubeSat
  • dual-band
  • S-band
  • S-dipole
  • stacked patch
  • X-band

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

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