A 3-D Metal Printed Folded-Shorted Patch Array with an Integrated Feeding Circuit Offering Dual-Band Circularly Polarised Radiation for CubeSat Applications

Yuepei Li, Jiayu Rao, Lei Wang, Yuan Ding, Symon Podilchak*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

This letter presents a three-dimensional (3-D) printed metallic antenna array that combines folded-shorted patches (FSPs) and meandering for structure compactness. The design provides dual-band functionality, operating in the L-band and the S-band. The compact and broadband feeding network, which is also integrated onto the backside of the antenna ground plane, enables circularly polarised radiation over an operational bandwidth of more than 80%. The dimensions of the array are 0.4 × 0.4 × 0.056 λ03 (where λ0 is the free space wavelength at 1.2 GHz), making the design suitable for CubeSats and other space constraint applications. The measured right-handed circular polarised realised gains are 2.32 dBic and 1.84 dBic at 1.2 GHz and 2.45 GHz, respectively. In addition, the 3-D metallic printed FSP elements can be flexibly arranged for different link requirements and other applications like beam steering.
Original languageEnglish
Article numbere13024
JournalElectronics Letters
Volume60
Issue number2
Early online date13 Jan 2024
DOIs
Publication statusPublished - Jan 2024

Keywords

  • antenna arrays
  • multifrequency antennas
  • satellite antennas

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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