Title :
Dual-Polarized Planar Reflector Feed for Direct Broadcast Satellite Systems
Author :
Chen, Tai-Lee ; Wu, Hsu-Sheng
Author_Institution :
Dept. of Phys., Nat. Central Univ., Jhongli, Taiwan
fDate :
7/2/1905 12:00:00 AM
Abstract :
This work presents a planar dual-polarized reflector feed for direct broadcast satellite (DBS) systems. The planar feed is a multilayered structure, featuring a suspended planar array with the aperture-coupling feed and the suspended-microstrip feed. The design of independent feeding circuits on each side of the ground plane provides effective isolation between the two feeding ports (35 dB). Radiation patterns for a 2 × 2 suspended array feed are similar to those of the conventional feed horn. The planar feed antenna gains are 12 and 30 dBi, as measured with a 20-in reflector at 12.2 GHz.
Keywords :
antenna feeds; antenna radiation patterns; direct broadcasting by satellite; horn antennas; planar antenna arrays; antenna radiation patterns; aperture-coupling feed; direct broadcast satellite systems; dual-polarized planar reflector feed; frequency 12.2 GHz; horn antenna; independent feeding circuits; planar feed antenna; suspended planar array; suspended-microstrip feed; Aperture coupling; direct broadcast satellite (DBS); patch array; suspended microstrip;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2010.2055817
