In-situ probes for patch antenna array calibration

Publikationstyp
Conference Paper
Date Issued
2011-06
Sprache
English
Author(s)
Stark, Alexander  
Rohrdantz, Benjamin  
Johannsen, Ulf  
Jacob, Arne F.  
Institut
Hochfrequenztechnik E-3  
TORE-URI
http://hdl.handle.net/11420/8406
Journal
International journal of microwave and wireless technologies  
Volume
3
Issue
3
Start Page
273
End Page
280
Citation
International Journal of Microwave and Wireless Technologies 3 (3): 273-280 (2011-06-01)
Publisher DOI
10.1017/S1759078711000316
Scopus ID
2-s2.0-79960137881
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.
Subjects
array calibration
far-field calibration
In-situ probes
online monitoring
patch antenna