Title :
A wideband, fiber-optic, true time-steered array receiver
Author :
Matthews, P.J. ; Frankel, M.Y. ; Esman, R.D.
Author_Institution :
Div. of Opt. Sci., Naval Res. Lab., Washington, DC, USA
Abstract :
The first fiber-optically controlled true time-delay array receiver capable of wide instantaneous bandwidth is demonstrated. The one-dimensional array consists of eight spiral elements arranged in a sparsely populated, unequally-spaced array pattern designed to suppress grating lobes and give a narrow main beam. The receiver exhibited /spl plusmn/60/spl deg/ azimuth steering with no observable squint over a microwave component-limited bandwidth of 6-18 GHz.
Keywords :
antenna phased arrays; array signal processing; delays; optical fibres; spiral antennas; 6 to 18 GHz; azimuth steering; fiber-optically controlled receiver; grating lobes; microwave component-limited bandwidth; one-dimensional array; phased array antennas; spiral elements; true time-steered array receiver; unequally-spaced array pattern; wide instantaneous bandwidth; Bandwidth; High speed optical techniques; Laser tuning; Optical arrays; Optical filters; Optical modulation; Optical receivers; Optical transmitters; Stimulated emission; Wideband;
Conference_Titel :
Microwave Symposium Digest, 1997., IEEE MTT-S International
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-3814-6
DOI :
10.1109/MWSYM.1997.604589
