Title :
True Time Delay Scheme for Continuous Optical Control of Phased Array Antennas Employing Chirped Fiber Gratings
Author :
Corral, J.L. ; Marti, J. ; Capmany, J. ; Laming, R.I. ; Cole, M.J.
Author_Institution :
ETSI Telecomunicacion, Universidad Politecnica de Valencia, Cami de Vera s/n, 46071, Valencia (Spain). Tel:+34 6 2849300, Fax:+34 6 2849313, Email: jlcorral@upv.es
Abstract :
A novel approach of true-time delay (TTD) feeder for optically controlled phased-array antennas (PAA) is proposed and demonstrated. A continuously variable TTD is achieved by employing tunable lasers and a wide bandwidth chirped fiber grating (CFG) as dispersive element. A high resolution performance (5.3 ps) is obtained for a 2-6 GHz PAA employing narrow tuning-bandwidth lasers with a wavelength stability of 0.005 nm and a 4 nm bandwidth CFG.
Keywords :
Antenna arrays; Bandwidth; Chirp; Delay effects; Fiber gratings; Fiber lasers; Laser tuning; Optical arrays; Optical control; Phased arrays;
Conference_Titel :
Microwave Conference, 1997. 27th European
Conference_Location :
Jerusalem, Israel
DOI :
10.1109/EUMA.1997.337966
