Title :
Novel active FET circular patch antenna arrays for quasi-optical power combining
Author :
Wu, Xiao-Dong ; Chang, Kai
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
5/1/1994 12:00:00 AM
Abstract :
This paper discusses two-dimensional planar arrays of weakly coupled active circular patch antennas suitable for quasi-optical power combiners. A novel radiating element that has low cross-polarization is described. A two-dimensional array analysis was developed to address radiation pattern and phase problems. Equivalent isotropic radiated power levels of 1.5 W for a two by two FET array and 3.8 W for a two by four FET array have been obtained at X-band
Keywords :
active antennas; microstrip antennas; microwave antenna arrays; microwave antennas; waveguide components; 1.5 W; 3.8 W; X-band; active FET circular patch antenna arrays; cross-polarization; equivalent isotropic radiated power levels; phase problems; quasi-optical power combining; radiating element; radiation pattern; two-dimensional array analysis; two-dimensional planar arrays; weakly coupled antennas; Antenna arrays; Circuits; Diodes; FETs; Feeds; Gunn devices; Injection-locked oscillators; Linear antenna arrays; Patch antennas; Power combiners;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
