Title :
Radiation characteristics of short backfire antennas
Author :
Rayner, M. ; Olver, A.D. ; Monk, A.D.
Author_Institution :
Queen Mary & Westfield Coll., London, UK
Abstract :
The backfire antenna is a compact antenna with good radiation pattern characteristics. The performance compares favourably with horns but the structure of the antenna is much shorter. Applications are as a feed for a reflector or as a single antenna for mobile communications or as an array element. The backfire antenna operates in a resonant mode. This means that no simple theories to predict performance are available and most design data has been obtained from experimental models. The paper reports a study of the short backfire antenna using the finite difference time domain (FD-TD) technique. FD-TD is a powerful computational technique which has enabled a parametric study of the geometry of the antenna to be undertaken. The theory has been verified by an experimental model
Keywords :
antenna radiation patterns; finite difference time-domain analysis; microwave antennas; reflector antennas; 5 GHz; SHF; array element; computational technique; feed; finite difference time domain; mobile communications; parametric study; performance; radiation pattern; reflector antenna; resonant mode; short backfire antennas; single antenna;
Conference_Titel :
Antennas and Propagation, 1995., Ninth International Conference on (Conf. Publ. No. 407)
Conference_Location :
Eindhoven
Print_ISBN :
0-85296-637-7
DOI :
10.1049/cp:19950259
