Title :
Theory and measurement for a dual-shaped reflector antenna for a whispering-gallery-mode gyrotron
Author :
Lorbeck, J.A. ; Vernon, R.J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
A dual-shaped dual-reflector synthesis technique is applied to the design of a reflector antenna system for transforming the output of a whispering-gallery-mode gyrotron to a focused Gaussian free-space beam. Numerical and measured results of the synthesis are presented. The synthesis routine developed yields excellent results when analyzed using ray tracing. Diffraction calculations indicate that undesired output field structure can be nearly eliminated by modifying the radiation pattern of the primary radiator.<>
Keywords :
antenna radiation patterns; antenna testing; antenna theory; electromagnetic wave diffraction; gyrotrons; reflector antennas; antenna measurement; antenna synthesis; antenna theory; diffraction calculations; dual-shaped reflector antenna; focused Gaussian free-space beam; output field structure; plasma heating; primary radiator; radiation pattern; ray tracing; reflector antenna system; synthesis routine; whispering-gallery-mode gyrotron; Antenna measurements; Antenna theory; Antennas and propagation; Apertures; Gyrotrons; Heating; Optical waveguides; Plasma measurements; Power distribution; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221922
