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Beam-steering in a three-element circular antenna-array

Published online by Cambridge University Press:  14 March 2014

Rachit Garg ,
Gaurav Mishra ,
Neetesh Purohit  and
Vishal Kesari
Rachit Garg
Affiliation:
Indian Institute of Information Technology, Allahabad, India. Phone: +91 94518 52922
Gaurav Mishra
Affiliation:
Indian Institute of Information Technology, Allahabad, India. Phone: +91 94518 52922
Neetesh Purohit*
Affiliation:
Indian Institute of Information Technology, Allahabad, India. Phone: +91 94518 52922
Vishal Kesari
Affiliation:
Defence Research and Development Organisation, Bangalore, India
*
Corresponding author: N. Purohit Email: neetesh15@yahoo.com
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Abstract

A simple and volume efficient circular antenna-array design with a low profile programmable beam rotation mechanism was presented. The proper selections of the rotation vector and the excitation coefficients of rectangular array-elements were made for rotation of the beam. The proposed rotation mechanism was capable to rotate the radiation pattern at any desired speed and to transmit in any desired direction, and the design included the ease of construction. Although simulating the radiation pattern using FEKO EM simulator, two basic functions, the power splitter and the introduction of phase difference, were included in feed network of microstrip circuit to divide the power and then individually feeding the each patch after introducing the desired phase difference.

Keywords

Active array antennas and componentsAntenna designModeling and measurements
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 7 , Issue 1 , February 2015 , pp. 45 - 51
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

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