Miniaturised dielectrically-loaded quadrifilar antenna for Global Positioning System (GPS)

O. Leisten; J. C. Vardaxoglou; P. McEvoy; R. Seager; A. Wingfield

doi:10.1049/el:20010906

Miniaturised dielectrically-loaded quadrifilar antenna for Global Positioning System (GPS)

O. Leisten, J. C. Vardaxoglou, P. McEvoy, R. Seager, A. Wingfield

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

Abstract

A new approach to designing a handset antenna for satellite applications is reported. It is based on precise control of the phasing between two bifilar helices, giving accurate resonant frequency position and radiation pattern volute. Results show an antenna with a gain of-2 dBi, 19 dB discrimination between the right and left hand circular polarisations and an axial ratio less than 1dB. The front-to-back ratio is 24 dB. A return loss of 14.6 dB is also measured.

Original language	English
Pages (from-to)	1321-1322
Number of pages	2
Journal	Electronics Letters
Volume	37
Issue number	22
DOIs	https://doi.org/10.1049/el:20010906
Publication status	Published - 25 Oct 2001
Externally published	Yes

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abstract = "A new approach to designing a handset antenna for satellite applications is reported. It is based on precise control of the phasing between two bifilar helices, giving accurate resonant frequency position and radiation pattern volute. Results show an antenna with a gain of-2 dBi, 19 dB discrimination between the right and left hand circular polarisations and an axial ratio less than 1dB. The front-to-back ratio is 24 dB. A return loss of 14.6 dB is also measured.",

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AU - McEvoy, P.

AU - Seager, R.

AU - Wingfield, A.

PY - 2001/10/25

Y1 - 2001/10/25

N2 - A new approach to designing a handset antenna for satellite applications is reported. It is based on precise control of the phasing between two bifilar helices, giving accurate resonant frequency position and radiation pattern volute. Results show an antenna with a gain of-2 dBi, 19 dB discrimination between the right and left hand circular polarisations and an axial ratio less than 1dB. The front-to-back ratio is 24 dB. A return loss of 14.6 dB is also measured.

AB - A new approach to designing a handset antenna for satellite applications is reported. It is based on precise control of the phasing between two bifilar helices, giving accurate resonant frequency position and radiation pattern volute. Results show an antenna with a gain of-2 dBi, 19 dB discrimination between the right and left hand circular polarisations and an axial ratio less than 1dB. The front-to-back ratio is 24 dB. A return loss of 14.6 dB is also measured.

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Miniaturised dielectrically-loaded quadrifilar antenna for Global Positioning System (GPS)

Abstract

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