A Full Investigation of Terahertz Wave Power Transmission in Plasma from Theoretical, Numerical, and Experimental Perspectives

Electronics

Di Peng¹  Ping Ma²  Jinhong Wang³  Bin Li³  Ke Yang³ 

[1] Electric Power Research Institute of State Grid Shaanxi Electric Power Company, Xi’an 710000, China;Hypersonic Velocity Institute, China Aerodynamics Research & Development Center, Mianyang 621000, China;School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China;

关键词: blackout problem;    mm wave;    terahertz;    plasma;   

DOI  :  10.3390/electronics11091432

来源: DOAJ

【 摘 要 】

Radio communication is a vital challenge during vehicle reentry into the Earth’s atmosphere in practice, because the plasma covering the aerospace vehicle can block the communication as the spacecraft reenters the atmosphere. To investigate the potential of the terahertz wave, the transfer function method is first applied to study the wave propagation behavior in plasma, validated by the numerical and the experimental results. The comparison of all three results shows a decent agreement, with the average absolute difference around 1.1 dB for the power loss between the theoretical and numerical results for 100 GHz and 220 GHz and around 0.8 dB for the power loss between the simulation and measurement for 100 GHz and 220 GHz, which shows the validity of the transfer function method and the great potential of the numerical model for future study. Moreover, the results shows the possibility of the application of the THz wave to deal with the blackout problem.

【 授权许可】

Unknown