Title :
A wideband antenna for P-band airborne SAR applications
Author :
Guinvarc´h, R. ; Ribière-Tharaud, Nicolas
Author_Institution :
SONDRA, Gif-sur-Yvette
Abstract :
A new wideband antenna for airborne SAR applications has been presented. It is based on a geometry that gives a stable phase center. It allows to have a rejection of the ground response ambiguity of more than 34 dB. Its bandwidth (defined for a S11 les -8 dB, with a gain ges 5 dB) is 245-390 MHz (45%). Further works will include the improvement of the S11, along with a size reduction of the LPDA to improve the front to back ratio. Finally, a prototype has to be built.
Keywords :
UHF antennas; VHF antennas; airborne radar; aircraft antennas; broadband antennas; radar antennas; synthetic aperture radar; P-band airborne SAR; P-band airborne synthetic aperture radar; stable phase center; wideband antenna; Aperture antennas; Bandwidth; Broadband antennas; Dipole antennas; Frequency; Geometry; Log periodic antennas; Microstrip antenna arrays; Shape; Synthetic aperture radar;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619617
