Title :
FDTD optimizations of the bandwidth of the hat feed for MM-wave reflector antennas
Author :
Kildal, P.-S. ; Jian Yang
Author_Institution :
Dept. of Microwave Technol., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
The hat antenna is a low sidelobe reflector antenna for radio link applications in the MM-wave band. In the present paper we describe how the hat feed has been analyzed by using the computer code V2D Solver based on the FDTD method. The FDTD method has resulted in a big break through in the possibility of numerically controlling the radiation performance of the hat feed. In particular, the bandwidth has been tuned to a return loss better than 20 dB over a 10% bandwidth.
Keywords :
antenna radiation patterns; finite difference time-domain analysis; millimetre wave antennas; optimisation; reflector antenna feeds; FDTD optimization; MM-wave reflector antennas; V2D Solver computer code; bandwidth; hat antenna; hat feed; low sidelobe reflector antenna; radiation performance; radio link applications; return loss; Antenna feeds; Apertures; Bandwidth; Dielectrics; Finite difference methods; Microwave antennas; Microwave technology; Radio link; Reflector antennas; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631489
