Title :
Mobile antenna system for Ku-band satellite Internet service
Author :
Son, Seong Ho ; Park, Ung Hee ; Jeon, Soon Ik ; Kim, Chang Joo
Author_Institution :
Electron. & Telecommun. Res. Inst., Daejeon, South Korea
fDate :
30 May-1 June 2005
Abstract :
This paper introduces the mobile antenna system for Ku-band satellite Internet service as well as DBS reception on the vehicle. The antenna type is an active phased array with mechanical rotation of which scanning range is the electronic ±10deg in elevation and the mechanical 360deg unlimited in azimuth. The G/T and EIRP are 7 dB/K and 34 dBW, respectively, and the number of subarrays is 24 with 1 by 8 microstrip patch. The distance of each subarray is perturbed with genetic optimization technique in order to reduce the sidelobes of the antenna. The pointing error is within 0.2deg in automatic tracking. In addition, the tracking performance of this mobile antenna system via satellite is verified by road test through highway and downtown.
Keywords :
Internet; active antenna arrays; antenna phased arrays; direct broadcasting by satellite; genetic algorithms; microstrip antenna arrays; mobile antennas; road vehicles; satellite antennas; EIRP; Ku-band satellite Internet service; active phased array antenna type; antenna sidelobes; automatic tracking; genetic optimization technique; mechanical rotation; microstrip patch; mobile antenna system; pointing error; road test; scanning range; subarray distance perturbation; tracking performance; vehicle DBS reception; Antenna arrays; Azimuth; Genetics; Microstrip antenna arrays; Mobile antennas; Phased arrays; Satellite antennas; Satellite broadcasting; Vehicles; Web and internet services;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543285
