Title :
Performance of a rectangular-waveguide-excited short backfire antenna employing a conical main reflector
Author :
Leong, M.S. ; Kooi, P.S.
Author_Institution :
National University of Singapore, Department of Electrical Engineering, Singapore
Abstract :
The letter presents experimental results at X-band for a short backfire antenna employing a conical reflector, which is excited by a rectangular waveguide. It is shown that the use of a conical main reflector can lead to a compact antenna having a directive gain of 16.7¿18.3 dB, sidelobe level below 13.8 dB and input VSWR better than 2.5 over a 20% bandwidth from 9¿11 GHz.
Keywords :
antenna radiation patterns; reflector antennas; waveguide antennas; 9 to 11 GHz; SHF; X-band; conical main reflector; microwave antennas; radiation patterns; rectangular waveguide excitation; short backfire antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840512
