Title :
Some experiences with resonant cavity antennas-oscillators
Author :
Hristov, H.D. ; Gatzov, I.P. ; Urumov, J.R. ; Kirov, G.S. ; Ivanov, T.
Author_Institution :
Dept. of Radiotech. Tech. Varna Univ., Bulgaria
fDate :
June 28 1993-July 2 1993
Abstract :
The authors describe some designs of X-band one- and two-cavity antenna-oscillators with semitransparent radiation apertures. The antennas are excited by Gunn-diode sources plus half-loop feeds. The power and radiation characteristics of one-, two-, and three-diode antenna-oscillators are described and compared. The experiments show that by using the field combining phenomenon in a single resonant cavity, a very high power efficiency is achieved.<>
Keywords :
Gunn oscillators; antenna radiation patterns; cavity resonators; microwave oscillators; reflector antenna feeds; waveguide antennas; Gunn-diode sources; X-band; designs; field combining phenomenon; half-loop feeds; power efficiency; radiation characteristics; resonant cavity antennas-oscillators; semitransparent radiation apertures; Antenna feeds; Antenna radiation patterns; Aperture antennas; Dielectric substrates; Diodes; Flanges; Microwave oscillators; Resonance; Solid state circuits; Space technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385327
