Title :
A novel self-adaptive anti-doppler time modulated antenna array system
Author :
Anjie Cao ; Chong He ; Xianling Liang ; Ronghong Jin ; Junping Geng
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
High-speed railway has been developing rapidly especially in china not only for the great convenience but also for the considerable profit. However, the current railway mobile communication system offers a low compatibility for trains at the speed higher than 350km/h, due to the Doppler and multipath affections. In order to solve this problem, a frequency and pattern reconfigurable antenna array system is proposed. In this system, a new type of printed dipole array is designed where each element is controlled by a 1-bit phase shifter. By controlling the on-off state of the RF switches on the phase shifter, the antenna array system can effectively decrease the affections of Doppler and multipath caused by high speed mobility.
Keywords :
Doppler shift; adaptive antenna arrays; dipole antenna arrays; microstrip antenna arrays; microwave switches; phase shifters; railway communication; RF switches; frequency reconfigurable antenna array system; high speed mobility; high-speed railway; multipath affections; pattern reconfigurable antenna array system; phase shifter; printed dipole antenna array; railway mobile communication system; self-adaptive antiDoppler time modulated antenna array system; word length 1 bit; Antenna arrays; Arrays; Doppler effect; Frequency modulation; Harmonic analysis; Phase shifters; Rail transportation;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711300
