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  4. A single-feed star-slot-coupled patch antenna with circular polarization
 
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A single-feed star-slot-coupled patch antenna with circular polarization

Publikationstyp
Conference Paper
Date Issued
2010-08-05
Sprache
English
Author(s)
Stark, Alexander  
Jacob, Arne F.  
Institut
Hochfrequenztechnik E-3  
TORE-URI
http://hdl.handle.net/11420/7953
Start Page
70
End Page
73
Article Number
5498234
Citation
German Microwave Conference, GeMIC: 5498234 (2010-08-05)
Contribution to Conference
German Microwave Conference (GeMIC 2010)  
Scopus ID
2-s2.0-77955099914
A single-feed K-Band patch antenna featuring circular polarization is presented. The proposed star-slot-coupling structure offers both polarization and input impedance adjustment capability. In combination with a truncated radiating element high-purity polarization is achievable at the operating frequency. Simulation shows that an axial ratio (AR) as low as 0.05 dB can be achieved. The design is robust against fabrication tolerances. Measurement results of a left handed circularly polarized (LHCP) antenna are presented. They show good agreement with simulation. Typically, the bandwidth reaches 10% for 10 dB matching and 4% for 6 dB axial ratio.
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