Title :
Ultrawide-band fiber-optic control of a millimeter-wave transmit beamformer
Author :
Tulchinsky, David A. ; Matthews, Paul J.
Author_Institution :
Opt. Sci. Div., US Naval Res. Lab., Washington, DC, USA
fDate :
7/1/2001 12:00:00 AM
Abstract :
An ultrawide-band fiber-optic true time-delay millimeter-wave array transmitter is fully characterized and demonstrated in this paper. The beamformer is based on dispersive-prism optical-delay lines and exhibits squint-free ±60° steering in azimuth across the entire Ka-band (26.5-40 GHz). This is believed to be the first fully functioning demonstration of a photonically controlled wide-band millimeter-wave transmitter system
Keywords :
antenna phased arrays; array signal processing; microwave photonics; millimetre wave antenna arrays; millimetre wave generation; radar antennas; transmitting antennas; 26.5 to 40 GHz; Ka-band; dispersive-prism optical-delay lines; millimeter-wave transmit beamformer; photonically controlled wide-band millimeter-wave transmitter; squint-free ±60° steering; true time-delay millimeter-wave array transmitter; ultrawide-band fiber-optic control; Array signal processing; Bandwidth; Frequency; Millimeter wave radar; Millimeter wave technology; Optical arrays; Optical control; Optical receivers; Optical signal processing; Optical transmitters;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
