Title :
FDTD design of a Chinese hat feed for shallow mm-wave reflector antennas
Author :
Yang, J. ; Kildal, P.-S.
Author_Institution :
Dept. of Microwave Technol., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
Rotationally symmetric reflectors with hat feeds are attractive for radio link applications the mm-wave band due to their low sidelobes, simple rotationally symmetric structure and low manufacture cost. The standard hat feed has its best performance in a very deep reflector. In this paper, the V2D computer code based on the finite-difference time-domain (FDTD) method is applied to the analysis of a Chinese hat feed, which is optimized for use in a more shallow reflector. The FDTD results have been post processed to obtain the different subefficiencies characterizing spillover, polarization, illumination and phase losses.
Keywords :
electromagnetic wave polarisation; finite difference time-domain analysis; millimetre wave antennas; radio links; reflector antenna feeds; Chinese hat feed; V2D computer code; finite-difference time-domain; illumination; low manufacture cost; low sidelobes; mm-wave band; performance; phase losses; polarization; radio link applications; rotationally symmetric reflectors; shallow mm-wave reflector antennas; spillover; Application software; Costs; Feeds; Finite difference methods; Lighting; Manufacturing; Optimization methods; Polarization; Radio link; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.701610
