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Beam steering spiral antenna reconfigured by PIN diodes

Published online by Cambridge University Press:  11 March 2014

Liang Gong ,
Rodica Ramer  and
King Yuk “Eric” Chan
Liang Gong*
Affiliation:
School of Electrical Engineering and Telecommunications, The University of New South Wales, Australia
Rodica Ramer
Affiliation:
School of Electrical Engineering and Telecommunications, The University of New South Wales, Australia
King Yuk “Eric” Chan
Affiliation:
School of Electrical Engineering and Telecommunications, The University of New South Wales, Australia
*
Corresponding author: L. Gong Email: liang.gong@unsw.edu.au
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Abstract

The paper proposes a new design for a single-arm, rectangular, spiral antenna (SARSA) with a wide azimuth space coverage. The antenna, operating at around 3.3 GHz, is capable of steering the beam in four separate directions in the azimuth plane. Only three DC signals are required to control the seven PIN diodes attached along the spiral arm. The antenna has a 200-MHz-bandwidth around 3.3 GHz with stable maximum beam directions that are defined by setting of the switches. Considerations required in selecting switch positions when designing such antennas for other frequencies, are presented. The measured return loss, radiation pattern and gain, all have close correlation with the simulation results. A detailed comparison of our design with those already proposed in the literature is given.

Keywords

Pattern reconfigurable antennasBeam steering antennasSingle-arm rectangular spiral antennasPIN diodes
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 6 , Special Issue 6: Mediterranean Microwave Symposium 2013 , December 2014 , pp. 619 - 627
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

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