Zhao Rikang, Zhang Zihao, Zhang Lin, et al. Microwave scattering by inhomogeneous plasma column[J]. High Power Laser and Particle Beams, 2017, 29: 053001. doi: 10.11884/HPLPB201729.170043
Citation:
Zhao Rikang, Zhang Zihao, Zhang Lin, et al. Microwave scattering by inhomogeneous plasma column[J]. High Power Laser and Particle Beams, 2017, 29: 053001. doi: 10.11884/HPLPB201729.170043
Zhao Rikang, Zhang Zihao, Zhang Lin, et al. Microwave scattering by inhomogeneous plasma column[J]. High Power Laser and Particle Beams, 2017, 29: 053001. doi: 10.11884/HPLPB201729.170043
Citation:
Zhao Rikang, Zhang Zihao, Zhang Lin, et al. Microwave scattering by inhomogeneous plasma column[J]. High Power Laser and Particle Beams, 2017, 29: 053001. doi: 10.11884/HPLPB201729.170043
School of Physics,Beijing Institute of Technology,Beijing 100081,China;
2.
Science and Technology on Electro-Optical Information Security Control Laboratory,The 53th Research Institute of China Electronics Technology Group Corporation,Tianjin 300308,China
The scattering features of microwave by inhomogeneous plasma column have been studied numerically by the Finite-difference-time-domain(FDTD) method and experimentally. The effects of the plasma frequency and electron collision rate on microwave's reflectance, transmittance and absorptance were tested. The results show the plasma column with plasma density of non-uniform distribution can make the scattering wave shift away from 0 to a side-angled direction. The electron density and the collision rate play an important role in the reduction of the wave reflection. The plasma density should be appropriate, even be lower than the critical value corresponding to the microwave, so that the microwave can reduce greatly in reflectance due to the strong scattering or absorption.
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