Title :
Waveguide slot array in-motion antenna for receiving both RHCP and LHCP using single layer polarizer
Author :
Son, Kwang-Seop ; Hwang, Sang-Yeon ; Park, Chan-Gu ; Yu, Jong-Won
Author_Institution :
KAIST, Seoul
Abstract :
In motion slot array antenna for receiving satellite broadcasting is presented. To reduce the loss of feed line and to reduce the coupling between the slots, we use the waveguide feeding network and the circular groove. By using two cross-type polarizers, which are implemented on a single layer film, the proposed antenna can receive RHCP or LHCP by mechanical switching system. The gains of 4x8 and 8x16 slot array antennas are 27.5dB, 31.5dB respectively. Also, in satellite broadcasting band of 11.75~12.75GHz, the axial ratio is smaller than 5dB.
Keywords :
direct broadcasting by satellite; microwave antenna arrays; slot antenna arrays; waveguide antenna arrays; LHCP; RHCP; bandwidth 11.75 GHz to 12.75 GHz; circular groove; gain 27.5 dB; gain 31.5 dB; in-motion antenna; left hand circular polarized; mechanical switching; right hand circular polarized; satellite broadcasting; single layer polarizer; slot array antenna; waveguide antenna; waveguide feeding network; Antenna arrays; Bandwidth; Dipole antennas; Feeds; Microwave antenna arrays; Polarization; Receiving antennas; Satellite antennas; Satellite broadcasting; Slot antennas; LHCP polarizer; RHCP polarizer; Slot Array Antenna; Waveguide Feed Network;
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429433
