Bandwidth limitation of two-port fed and self-phased quadrifilar helix antennas

Muhammad Amin, Robert Cahill

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The bandwidth of a resonant quadrifilar helix antenna (QHA) is shown to be strongly dependent on the design of the feed network. In this paper, we compare the impedance and radiation-pattern performance of two QHAs driven by different feed arrangements. A qualitative explanation for the difference in the behaviour of the antenna is given by observing the amplitude and phase distribution of the current in the helices. (c) 2005 Wiley Periodicals, Inc.
Original languageEnglish
Pages (from-to)11-15
Number of pages5
JournalMicrowave and Optical Technology Letters
Issue number1
Publication statusPublished - 05 Jul 2005

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

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