Title :
Beam scanning with coupled VCOs
Author :
Liao, P. ; York, R.A.
Author_Institution :
Dept. of Electr. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
An eight element beam scanning array using strongly coupled voltage controlled oscillators (VCOs) is described. A constant, progressive phase shift between elements can be synthesized by adjusting the natural frequencies of the end elements [6]. The VCOs in the array are used to implement this frequency detuning. Measured radiation patterns indicate continuous scanning from -15/spl deg/ to +30/spl deg/ off broadside with an effective radiated power (ERP) of 8.5 W at 8.4 GHz.<>
Keywords :
antenna phased arrays; antenna radiation patterns; microwave antenna arrays; scanning antennas; voltage-controlled oscillators; 8.4 GHz; 8.5 W; ERP; SHF; beam scanning array; continuous scanning; coupled VCO; effective radiated power; frequency detuning; measured radiation patterns; natural frequencies; progressive phase shift; voltage controlled oscillators; Frequency synchronization; Frequency synthesizers; Injection-locked oscillators; Microstrip antenna arrays; Nearest neighbor searches; Optical coupling; Phased arrays; Power generation; Power transmission lines; Voltage-controlled oscillators;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1994. AP-S. Digest
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-2009-3
DOI :
10.1109/APS.1994.407962
