Reconfigurable Plasma Antenna Produced in Air by Laser-induced Filaments: Passive Radar Application
A virtual reconfigurable plasma antenna consisting of a set of laser plasma filaments produced in air by the propagation of femtosecond laser pulses in air is investigated. Several possible configurations of such virtual antenna are introduced. Input impedance, radiation pattern and current distribution, thermal noise and the radiation efficiency of a laser-induced plasma antenna are calculated. Field properties of plasma and copper antennas are compared. The results show that the proposed antenna has severe success with wide band of frequencies, which gives it suitability for transmitting a diversed radar waveform with the passive radar applications. It gives the passive radar a great advantage in its ability for using a wide band diverse pulse train to improve the detection probability of the radar with stealthy fluctuated targets, which difficult to generate using the tradition antenna.
laser induced filament femtosecond laser plasma passive radar
Mostafa Alshershby Jingquan Lin
School of Science, Changchun University of Science and technology Changchun 130022, China School of Science, Changchun University of Science and technologyChangchun 130022, China
国际会议
2012 International Conference on Optoelectronics and Microelectronics(2012光电子与微电子国际学术会议 2012 ICOM)
长春
英文
364-371
2012-08-23（万方平台首次上网日期，不代表论文的发表时间）