Effect of helix turn angle on the performance of a half wavelength quadrifilar antenna

Muhammad Amin, Robert Cahill

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

The impedance and radiation pattern parameters of a lambda/2 quadrifilar helix antenna (QHA) with turn angles in the range 0 degrees to 235 degrees are analyzed. It is shown that by selecting the helix turn angle to satisfy the minimum bandwidth and beamwidth requirements, an improved electrical performance and a reduction in the physical size of the antenna is obtained. This is demonstrated by comparing the performance of a conventional half turn QHA with structures having a smaller pitch length. The computed results are validated by experimental data at L-band.
Original languageEnglish
Article number1637503
Pages (from-to)384-386
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume16
Issue number6
DOIs
Publication statusPublished - Jun 2006

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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