Title :
Axially symmetric dual-reflectarray antennas
Author :
Ji Hwan Yoon ; Young Joong Yoon ; Woo-sang Lee ; Joon-Ho So
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
An axially symmetric dual-reflectarray antenna is proposed. A main reflectarray is designed to mimic a paraboloidal main reflector, and a sub-reflectarray is designed to mimic a hyperboloidal or an ellipsoidal sub-reflector. The dual-reflectarray antenna is more compact than the conventional curved dual reflector. The dual-reflectarray antenna is designed at W-band and compared with its equivalent Cassegrain antenna.
Keywords :
reflectarray antennas; axially symmetric dual-reflectarray antenna; curved dual reflector; ellipsoidal subreflector; equivalent Cassegrain antenna; hyperboloidal subreflector; paraboloidal main reflector;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0977
