Title :
True Time Delay Beam Steering/Shaping Phased Array Antenna System for Plasma Diagnostics
Author :
Yang, Lu ; Domier, Calvin W. ; Luhmann, N.C., Jr.
Author_Institution :
Univ. of California, Davis
Abstract :
An electronically controlled beam focusing/ defocusing Phased Array Antenna (PAA) system is proposed for use in Microwave Imaging Reflectometry (MIR) systems, which are being developed to measure plasma density fluctuations. The design, construction and performance of a Ka-band 1times8 true time delay E-plane beam scanning and broadening phased array system based on piezoelectric transducer controlled delay line technology using antipodal elliptically-tapered slot antennas are presented. The beam is steered from -21degto +24degand the 3 dB beamwidth is widened by about 10deg, the latter being the requirement for the target MIR system.
Keywords :
antenna phased arrays; beam steering; broadband antennas; microwave imaging; microwave reflectometry; piezoelectric transducers; plasma density; plasma diagnostics; plasma fluctuations; slot antenna arrays; MIR system; antipodal elliptically-tapered slot antennas; broadening phased array system; defocusing PAA system; electronically controlled beam focusing PAA system; microwave imaging reflectometry; phased array antenna system; piezoelectric transducer controlled delay line technology; plasma density fluctuations; plasma diagnostics; true time delay E-plane beam scanning; true time delay beam steering; Antenna arrays; Beam steering; Control systems; Delay effects; Microwave antenna arrays; Particle beam measurements; Particle beams; Phased arrays; Plasma diagnostics; Structural beams;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368744
