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In-situ probes for patch antenna array calibration

Published online by Cambridge University Press:  04 April 2011

Alexander Stark ,
Benjamin Rohrdantz ,
Ulf Johannsen  and
Arne F. Jacob
Alexander Stark*
Affiliation:
Hamburg University of Technology (TUHH), Institut für Hochfrequenztechnik, 21073 Hamburg, Germany. Phone: +4940-42878-2758
Benjamin Rohrdantz
Affiliation:
Hamburg University of Technology (TUHH), Institut für Hochfrequenztechnik, 21073 Hamburg, Germany. Phone: +4940-42878-2758
Ulf Johannsen
Affiliation:
Hamburg University of Technology (TUHH), Institut für Hochfrequenztechnik, 21073 Hamburg, Germany. Phone: +4940-42878-2758 Department of Electrical Engineering, Electromagnetics and Wireless Group, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
Arne F. Jacob
Affiliation:
Hamburg University of Technology (TUHH), Institut für Hochfrequenztechnik, 21073 Hamburg, Germany. Phone: +4940-42878-2758
*
Corresponding author: A. Stark Email: alexander.stark@tuhh.de
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Abstract

A novel calibration network for patch antennas is proposed. We introduce magnetically coupled in-situ probes, which excite the fundamental patch mode. In that way, finite array effects and mutual coupling are taken into account, providing the opportunity for accurate online calibration of active antenna terminals. The specific advantages of the approach are demonstrated for linearly polarized patch antennas. Realization aspects of the multilayer antenna are discussed and the effect of some fabrication imperfections are investigated. Measured S-parameters as well as radiation simulation results of a single patch with the integrated probes are presented. Based on simulation of antenna arrays with in-situ probes the calibration accuracy is given in theory.

Keywords

In-situ probespatch antennaarray calibrationfar-field calibrationonline monitoring
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 3 , Special Issue 3: Special Issue on European Microwave Week 2010 , June 2011 , pp. 273 - 280
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2011

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References

REFERENCES

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