Title :
The hexagonal horn as an efficient Gaussian beam launcher
Author :
Shen, Tao ; Sun, Zhongliang ; Dou, Wenbin
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
fDate :
7/1/1997 12:00:00 AM
Abstract :
A new type of feed horn-the hexagonal horn-is proposed and investigated by means of Gaussian-Hermite beam-mode analysis. The electric-field distribution at the horn aperture plane is approximated. The polarization efficiency is 88.66%. The fractional power in the fundamental beam mode is about 85%. The near- and far-field radiation patterns are calculated. The high fractional power in the fundamental beam mode of the horn indicates that it can be used as an efficient Gaussian beam launcher in quasi-optical systems
Keywords :
antenna feeds; antenna radiation patterns; electric fields; electromagnetic wave polarisation; horn antennas; 85 percent; 88.66 percent; Gaussian-Hermite beam-mode analysis; efficient Gaussian beam launcher; electric-field distribution; far-field radiation patterns; feed horn; fractional power; fundamental beam mode; hexagonal horn; horn aperture plane; near-field radiation pattern; polarization efficiency; quasi-optical systems; Antenna radiation patterns; Apertures; Circuits; Fabrication; Feeds; Gaussian approximation; Gaussian processes; Millimeter wave technology; Polynomials; Submillimeter wave technology;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
