Title :
Optical true time-delay feeder for linear phased-array antennas implemented with chirped fiber gratings
Author :
Lee, Gab-Yong ; Choi, Yeon-Bong ; Shin, Jong-Dug ; Kim, Boo-Gyoun ; Lee, Sang-Bae
Author_Institution :
Sch. of Electron. Eng., Soongsil Univ., Seoul, South Korea
Abstract :
We propose a continuously variable optical true time-delay (TTD) feeder for linear phased-array antennas (PAAs) composed of chirped fiber gratings (CFGs) and one tunable laser source. Experimental results on group delay slope of the CFG used are presented at several different RF frequencies. Design parameters and simulation results for a four-element PAA using CFGs are also given
Keywords :
antenna feeds; antenna phased arrays; chirp modulation; diffraction gratings; laser tuning; microwave photonics; optical fibres; optical modulation; RF frequencies; chirped fiber gratings; continuously variable optical true time-delay feeder; linear phased-array antennas; phased-array antennas; tunable laser source; Antenna feeds; Bandwidth; Chirp; Delay effects; Frequency measurement; Linear antenna arrays; Optical arrays; Radio frequency; Time measurement; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969271
