Title :
Range demonstration of an ultra-wideband, continuous, time steered array using a fiber-optic, cascaded grating prism
Author :
Medberry, J.B. ; Biernacki, P.D. ; Matthews, P.J.
Author_Institution :
Div. of Opt. Sci., Naval Res. Lab., Washington, DC, USA
Abstract :
We demonstrate an ultra-wideband fiber optic true time-delay receive beamformer using a chirped grating architecture of identical, cascaded gratings provided continuous, time-delay of up to 2.4 ns. The beamformer system was built using commercially available components, and is capable of continuous tuning over /spl plusmn/60/spl deg/, with an instantaneous bandwidth of 14 GHz.
Keywords :
antenna phased arrays; array signal processing; beam steering; chirp modulation; diffraction gratings; microwave photonics; optical fibres; optical prisms; receiving antennas; 14 GHz; beam steering; cascaded chirped grating prism; continuous tuning; phased array antenna; range; ultra-wideband fiber optic true time delay receive beamformer; Bandwidth; Chirp; Delay effects; Dispersion; Fiber gratings; Optical feedback; Optical fibers; Optical modulation; Phased arrays; Ultra wideband technology;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.861140
