Title :
Feed horn antenna including circular-polarizer and straight type mode converter to illuminate shaped reflector at Ka-band
Author :
Yun, Jaeseung ; Jeon, Soonick ; Chae, Jongsuk
Author_Institution :
Electron. & Telecommun. Res. Inst., Daejon, South Korea
Abstract :
A feed horn antenna including circular-polarizer and straight type mode converter for a phased array is proposed to illuminate a shaped reflector antenna and be extended to an array of 8×1. The proposed antenna has a very good radiation pattern and wide axial ratio bandwidth compared to the microstrip elements. In additional to that, if we replace the dielectric type polarizer with oval shape waveguide, insertion loss is reduced.
Keywords :
antenna phased arrays; antenna radiation patterns; horn antennas; reflector antenna feeds; waveguide antenna arrays; Ka-band shaped reflector; antenna radiation pattern; axial ratio bandwidth; circular polarizer; feed horn antenna; insertion loss; oval shape waveguide; phased array; straight type mode converter; Antenna arrays; Antenna feeds; Antenna radiation patterns; Bandwidth; Dielectric losses; Horn antennas; Microstrip antenna arrays; Microstrip antennas; Phased arrays; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1330488
