Title :
Design method for offset shaped dual-reflector antenna with an elliptical aperture of low cross-polarisation characteristics
Author :
Aoki, K. ; Miyahara, N. ; Makino, S. ; Urasaki, S. ; Katagi, T.
Author_Institution :
Commun. Syst. Center, Mitsubishi Electr. Corp., Amagasaki, Japan
fDate :
2/1/1999 12:00:00 AM
Abstract :
The paper presents a design method for an offset shaped dual-reflector antenna (OSDRA) with an elliptical aperture of low cross-polarisation characteristics. This method is a dual-reflector synthesis based on a reflector shaping method using reflector shaping functions and is applied to attain low cross-polarisation characteristics for the OSDRA. The initial values for the reflector shaping are explicitly determined by a reflector system configuration transformation technique. This design method has been verified through measurement of an elliptical aperture antenna for a satellite news gathering system and a very small aperture terminal in the Ku band
Keywords :
antenna radiation patterns; antenna testing; electromagnetic wave polarisation; electronic news gathering; microwave antennas; offset reflector antennas; satellite ground stations; Ku band; VSAT; design method; dual-reflector synthesis; elliptical aperture; elliptical aperture antenna measurement; low cross-polarisation characteristics; offset shaped dual-reflector antenna; reflector shaping functions; reflector shaping method; reflector system configuration transformation; satellite news gathering system; very small aperture terminal;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19990393
