A Small Printed Quadrifilar Helical Antenna for BGAN/GPS Applications

Kazemi, R.

doi:10.22061/jecei.2017.623

Document Type : Original Research Paper

Author

R. Kazemi

Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, 5166616471 Iran

https://doi.org/10.22061/jecei.2017.623

Abstract

This paper presents an element of a 2×2-element array antenna for Inmarsat BGAN/GPS applications. The element is an axial mode printed quadrifilar helical antenna that has been integrated with a compact feed network to provide sequential phase rotation for circular polarization (CP) radiation. The novel integrated lumped-element feed network is designed to provide a balanced RF power to the four helix arms with a 90° sequential phase difference between them. The design maintains a low cross polarization, and accordingly, a high quality of RHCP up to ±66° over the transmit frequency band of 1616 MHz to 1626 MHz. The gain in this frequency range is higher than 3.5 dB with a return loss better than 11 dB and a perfect circular polarization performance (axial ratio ~0 dB).
The proposed antenna has small size, light weight, low cost, almost hemispherical radiation pattern and excellent circular polarization that can become a good candidate in satellite L1-band and BGAN satellite communications.

Graphical Abstract

Keywords

20.1001.1.23223952.2017.5.1.2.0

References

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Journal of Electrical and Computer Engineering Innovations (JECEI)

A Small Printed Quadrifilar Helical Antenna for BGAN/GPS Applications

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Volume 5, Issue 1 - Serial Number 9
January 2017
Pages 7-11

A Small Printed Quadrifilar Helical Antenna for BGAN/GPS Applications

References

References

Send comment about this article

Volume 5, Issue 1 - Serial Number 9January 2017Pages 7-11

Volume 5, Issue 1 - Serial Number 9
January 2017
Pages 7-11