Title :
Wavy-walled taper horns with intentionally controlled radiation pattern
Author :
Deguchi, Hiroyuki ; Okada, Takashi ; Tsuji, Mikio ; Shigesawa, Hiroshi
Author_Institution :
Dept. of Electron., Doshisha Univ., Kyoto, Japan
Abstract :
To realize low cross-polarization horns with simple structure, we have developed multimode horns with no corrugation. These horns are designed by using the optimization technique combined with the mode-matching approach. In this paper, we have proposed two types of wavy-walled multimode horns of which the radiation pattern is intentionally controlled. One of them is a high efficiency horn with uniform aperture distribution and the other is a horn with radiation pattern similar to choked horns. The effectiveness of our design method is verified by comparing with measured and predicted results.
Keywords :
antenna radiation patterns; aperture antennas; electromagnetic wave polarisation; horn antennas; mode matching; optimisation; choked horns; high efficiency horn; intentionally controlled radiation pattern; low cross-polarization horns; mode matching; multimode horns; optimization; uniform aperture distribution; wavy-walled taper horns; Apertures; Design methodology; Design optimization; Frequency; Polarization; Positron emission tomography; Shape control;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1332094
