A compact dual-band assembled quadrifilar helix antenna for LEO satellite communications

Donghe Zhao*, Guodong Han, Guifeng Liu, Chao Gu

*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

This paper presents a compact dual-band quadrifilar helix antenna suitable for satellite communications. The antenna consists of two quadrifilar helix antennas stacked vertically as a single unit. The upper quadrifilar helix antenna operates in the S-band, while the lower one operates in the L-band. The upper quadrifilar helix antenna adopts a self-rotating spiral structure and is fed by a slotted coaxial balun. The lower antenna is excited by a feed network with equal amplitudes and phase differences of 90°. Simulation results show that the antenna has good circular polarization and wide beamwidth characteristics within the operating frequency band, with S11<-12 dB at the S-band and S11<-20 dB at the L-band. In addition, the gain is greater than 0 dBi in the ±60° beamwidth range for both bands.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Microwave and Millimeter Wave Technology, ICMMT 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages3
ISBN (Electronic)9798350338874
ISBN (Print)9798350338881
DOIs
Publication statusPublished - 17 Oct 2023
Event15th International Conference on Microwave and Millimeter Wave Technology 2023 - Qingdao, China
Duration: 14 May 202317 May 2023

Conference

Conference15th International Conference on Microwave and Millimeter Wave Technology 2023
Abbreviated titleICMMT 2023
Country/TerritoryChina
CityQingdao
Period14/05/202317/05/2023

Keywords

  • circular polarization
  • dual-band
  • helical
  • quadrifilar helix antenna
  • wide beamwidth

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Instrumentation
  • Radiation

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