Title :
Effect of antenna phase center displacement on FM-CW measurements $application to radar system
Author :
Bares, C. ; Brousseau, C. ; Le Coq, L. ; Bourdillon, A.
Author_Institution :
Inst. d´Electronique et de Telecommun. de Rennes, Rennes I Univ., France
Abstract :
The aim of this article is to study the phase center movement on a wide band antenna, and its effects on Doppler frequency measurements in FM-CW systems. In the first part, the FM-CW radar system is described. In the second part, the model used to compute the phase center position of a log-periodic dipole (LPD) antenna is presented and validated by measurements. In the final part, this method is applied to a HF-VHF LPD antenna and the Doppler effect of this antenna is computed in an FM-CW radar context.
Keywords :
CW radar; Doppler radar; FM radar; HF antennas; VHF antennas; antenna testing; broadband antennas; log periodic antennas; Doppler effect; Doppler frequency measurements; FM-CW measurement; FM-CW radar system; HF-VHF LPD antenna; LPD antenna phase center position; antenna phase center displacement; log-periodic dipole antenna; wide band antenna; Antenna measurements; Broadband antennas; Dipole antennas; Displacement measurement; Doppler radar; Frequency measurement; Phase measurement; Radar antennas; Radar applications; Radar measurements;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220034
