Title :
Electrooptic phased array transmitter
Author :
Henion, S.R. ; Schulz, P.A.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
fDate :
3/1/1998 12:00:00 AM
Abstract :
An optically controlled transmit phased array was designed and a four-element linear array was built using integrated optics for beamforming and fiber optics for flexible remoting of the antenna. Electrooptic phase shifters remote from the antenna allowed simple electronic control of beam pointing. This phased array transmitter operated at 10 GHz with an effective isotropic radiated power (EIRP) of 14 dBW. The radiated power corresponded to approximately 0.4 W per element. The transmitted beam was electronically steered to any angle between -30/spl deg/ and 30/spl deg/ in less than 5 μs. The measured antenna patterns agreed well with theory.
Keywords :
antenna phased arrays; antenna radiation patterns; integrated optics; integrated optoelectronics; microwave phase shifters; transmitting antennas; 0.4 W; 10 GHz; 5 mus; antenna patterns; antenna remoting; beam pointing; beamforming; effective isotropic radiated power; electronic control; electronically steered; electrooptic phase shifters; electrooptic phased array transmitter; fiber optics; flexible remoting; four-element linear array; integrated optics; optically controlled transmit phased array design; phased array transmitter; Array signal processing; Integrated optics; Linear antenna arrays; Optical arrays; Optical control; Optical design; Optical fibers; Optical transmitters; Phase shifters; Phased arrays;
Journal_Title :
Photonics Technology Letters, IEEE
