A circularly polarized antenna array with integrated calibration probes

Publikationstyp
Conference Paper
Date Issued
2014-11
Sprache
English
Author(s)
Rohrdantz, Benjamin  
Stark, Alexander  
Hawamdah, Esam  
Jacob, Arne F.  
Institut
Hochfrequenztechnik E-3  
TORE-URI
http://hdl.handle.net/11420/8389
Start Page
462
End Page
464
Article Number
7067760
Citation
Asia-Pacific Microwave Conference (APMC 2014)
Contribution to Conference
Asia-Pacific Microwave Conference, APMC 2014  
Scopus ID
2-s2.0-84949105522
In this contribution internal calibration probes for circularly polarized patch antenna arrays are proposed. The probe network replicates the patch's natural mode of operation and thereby enables a precise calibration that incorporates finite array effects and mutual coupling. Furthermore, the approach allows for online monitoring which is of major importance for active arrays. The probes can be integrated with single feed circularly polarized microstrip antennas that use perturbations such as truncated corners. The feasibility of this calibration technique is demonstrated by measurements on a 4 by 1 array.
Subjects
Active array
Calibration probes
Circular polarization
Monitoring
Online calibration
Patch antenna
DDC Class
000: Allgemeines, Wissenschaft