Title :
Transmit/receive module of multiwavelength optically controlled phased-array antennas
Author :
Tong, Dennis T K ; Wu, Ming C.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
We report on a transmit/receive module of multiwavelength optically controlled phased-array antennas. Both transmit and receive mode of the module employs a single programmable dispersion matrix to provide true time delays for all antenna elements. The multiwavelength receiver combines antenna signals in the optical domain without suffering from coherent interference. Therefore, squint-free receiver over a broad frequency band can be achieved. Experimentally, squint-free beam receiving with 2-b scan angle resolution is demonstrated over an equipment-limited frequency range from dc to 4 GHz.
Keywords :
antenna phased arrays; modules; optical dispersion; optical receivers; optical transmitters; wavelength division multiplexing; antenna elements; antenna signals; broad frequency band; coherent interference; equipment-limited frequency range; multiwavelength optically controlled phased-array antennas; multiwavelength receiver; optical domain; receive mode; scan angle resolution; single programmable dispersion matrix; squint-free beam receiving; transmit mode; transmit/receive module; Delay effects; Optical arrays; Optical control; Optical modulation; Optical network units; Optical noise; Optical receivers; Optical transmitters; Receiving antennas; Transmitting antennas;
Journal_Title :
Photonics Technology Letters, IEEE
