Dual-polarised T/R antenna system suitable for FMCW altimeter radar applications

Secmen, M.
Demir, S.
Hizal, A.
The authors propose a dual-polarised T/R antenna system that utilises a 3 dB 90 degrees hybrid coupler and a dual-polarised antenna. From the practical point of view the T/R isolation performance of this system can be made better than that of systems using circulators. There is no power loss both in transmit and receive modes compared to 6 dB total loss in a conventional system using a hybrid coupler and a single polarised antenna. To validate the system performance, a sample structure is realised for a C band application. The presented system analysis and measurements are for an above-ground application. The measurements show good agreement with the theoretical expectations.


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Citation Formats
M. Secmen, S. Demir, and A. Hizal, “Dual-polarised T/R antenna system suitable for FMCW altimeter radar applications,” IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, pp. 407–412, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66336.