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

Muhammad Amin; Robert Cahill

doi:10.1109/LMWC.2006.875587

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

Muhammad Amin, Robert Cahill

Research output: Contribution to journal › Article › peer-review

41 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 language	English
Article number	1637503
Pages (from-to)	384-386
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	16
Issue number	6
DOIs	https://doi.org/10.1109/LMWC.2006.875587
Publication status	Published - Jun 2006

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/LMWC.2006.875587

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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.",

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AB - 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.

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

Abstract

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