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International Journal of Antennas and Propagation
Volume 2012 (2012), Article ID 625165, 8 pages
http://dx.doi.org/10.1155/2012/625165
Research Article

Joint Gain/Phase and Mutual Coupling Array Calibration Technique with Single Calibrating Source

1Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
2Temasek Laboratories, NTU, Singapore
3School of Electrical and Electronic Engineering, NTU, Singapore

Received 9 July 2012; Revised 19 September 2012; Accepted 20 September 2012

Academic Editor: Hon Tat Hui

Copyright © 2012 Wei Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An iterative-based method for joint gain/phase and mutual coupling array calibration is proposed in this paper. It estimates the array gain/phase and mutual coupling coefficients with a set of simultaneous equations formed by using the beam pattern property of the array. Only one calibrating source with known direction is requiblue to obtain the unique estimate. The effectiveness of this approach is illustrated by simulation results and by experimental data collected with an antenna array operating in high-frequency radio band.