Title :
12/21GHz dual-band feed for circularly polarized satellite broadcasting receiving antenna
Author :
Nagasaka, M. ; Nakazawa, S. ; Tanaka, S.
Author_Institution :
NHK Sci. & Technol. Res. Labs., Tokyo, Japan
Abstract :
The 21GHz band satellite broadcasting system is studied for transmission channels to deliver ultra high definition TV, 3D television and so on. A 12/21GHz dual-band parabolic reflector antenna will enable to receive TV services using different frequency bands with a single reflector antenna. To achieve sufficient gain for TV reception in both bands, a 12/21GHz dual-band feed is designed for the parabolic antenna with a circularly polarized microstrip array antenna. The feed is designed in terms of the voltage standing wave ratio (VSWR) and the radiation pattern. Simulation results show that the VSWR was less than 1.5 throughout the target range in both bands and that the beamwidth of the radiation pattern was the same for both bands.
Keywords :
antenna radiation patterns; microstrip antenna arrays; multifrequency antennas; receiving antennas; reflector antenna feeds; satellite antennas; television antennas; television broadcasting; television reception; wireless channels; 3D television; TV reception; TV services; VSWR; antenna radiation pattern; circularly polarized microstrip array antenna; circularly polarized satellite broadcasting receiving antenna; dual-band antenna feed; dual-band parabolic reflector antenna; frequency 12 GHz; frequency 21 GHz; satellite broadcasting system; single reflector antenna; transmission channels; ultrahigh definition TV; voltage standing wave ratio; Antenna feeds; Antenna radiation patterns; Microstrip; Microstrip antenna arrays; Reflector antennas; Satellite broadcasting;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348450
