Title :
True time-delay fiber-optic control of a phased-array transmitter with three-octave bandwidth
Author :
Esman, R.D. ; Frankel, Michael Y. ; Parent, M.G.
Author_Institution :
Fibre-Opt. Microwave Signal Process. Section, Naval Res. Lab., Washington, DC, USA
Abstract :
We demonstrate a true time-delay fiber-optically controlled phased-array transmitter with eight broadband spiral elements in a sparsely-populated array. The transmitter bandwidth is microwave-component limited to the 2-18 GHz frequency range. The transmitter shows /spl plusmn/50/spl deg/ azimuth steering with no observed squint over a complete frequency range.<>
Keywords :
antenna feeds; antenna phased arrays; arrays; delays; fibre lasers; optical fibre dispersion; radio transmitters; transmitting antennas; 2 to 18 GHz; azimuth steering; broadband spiral elements; microwave-component limiting; phased-array transmitter; sparsely-populated array; three-octave bandwidth; time-delay fiber-optic control; transmitter bandwidth; Bandwidth; Feeds; Frequency; Gratings; Optical arrays; Optical fiber testing; Radar antennas; Receiving antennas; Transmitters; Wavelength measurement;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406166
