Profile-Reduced S/X-Band Shared-Aperture Antenna Array with Frequency-Selective Surfaces

Mohamed Räsänen, Juha Ala-Laurinaho, Andrea Di Giovanni, Jose Manuel Fernandez Gonzalez, Alfonso Tomas Muriel-Barrado, Ville Viikari

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Shared aperture antennas (SAAs) are becoming more popular due to their desirable traits such as miniaturization and cost reduction. However, incorporating a high frequency ratio in an SAA typically results in increased PCB fabrication costs or additional manufacturing complexity. In this work, we present the design concept and simulation results of a circularly polarized SAA with a profile of tenth of a wavelength at the lowest frequency. The SAA simulations indicate a -10-dB active reflection coefficient bandwidth of 292 MHz for the S-band and -9-dB total active reflection coefficient bandwidth of 1.071 GHz within a +/-40°2D beam steering range for the X-band. The S-band element is realized with an inter-band filtering dipole that is co-located in the same plane as the 4× 4 X-band array that utilizes slot antennas as radiating elements.

Original languageEnglish
Title of host publicationEuCAP 2025 - 19th European Conference on Antennas and Propagation
PublisherIEEE
Number of pages5
ISBN (Print)979-8-3503-6632-7
DOIs
Publication statusPublished - 2025
MoE publication typeA4 Conference publication
EventEuropean Conference on Antennas and Propagation - Stockholm, Sweden, Stockholm, Sweden
Duration: 30 Mar 20254 Apr 2025
Conference number: 19

Conference

ConferenceEuropean Conference on Antennas and Propagation
Abbreviated titleEuCAP
Country/TerritorySweden
CityStockholm
Period30/03/202504/04/2025

Keywords

  • artificial magnetic conductor
  • beam-forming
  • frequency selective surface
  • phased array
  • Shared aperture antenna

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  • -: RF Sampo/T40410 Viikari

    Viikari, V. (Principal investigator)

    01/11/202130/11/2024

    Project: Business Finland: Strategic centres for science, technology and innovation (SHOK)

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