Research on phase shift characteristics of electromagnetic wave in plasma

Zhaoying WANG (王召迎); Lixin GUO (郭立新); Jiangting LI (李江挺)

doi:10.1088/2058-6272/ac0328

Plasma Science and Technology > 2021 > 23(7): 75001-075001. > DOI: 10.1088/2058-6272/ac0328

Zhaoying WANG (王召迎), Lixin GUO (郭立新), Jiangting LI (李江挺). Research on phase shift characteristics of electromagnetic wave in plasma[J]. Plasma Science and Technology, 2021, 23(7): 75001-075001. DOI: 10.1088/2058-6272/ac0328

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Research on phase shift characteristics of electromagnetic wave in plasma

School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, People's Republic of China

Funds: Project supported by National Natural Science Foundation of China (Nos. U20B2059, 62071353, 61627901 and 62071348), the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (No. 61621005), and the Key Laboratory Foundation (No. 6142502190203).

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Received Date: March 09, 2021
Revised Date: May 12, 2021
Accepted Date: May 18, 2021

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Abstract

Abstract

The phase shift characteristics reflect the state change of electromagnetic wave in plasma sheath and can be used to reveal deeply the action mechanism between electromagnetic wave and plasma sheath. In this paper, the phase shift characteristics of electromagnetic wave propagation in plasma were investigated. Firstly, the impact factors of phase shift including electron density, collision frequency and incident frequency were discussed. Then, the plasma with different electron density distribution profiles were employed to investigate the influence on the phase shift characteristics. In a real case, the plasma sheath around the hypersonic vehicle will affect and even break down the communication. Based on the hypersonic vehicle model, we studied the electromagnetic wave phase shift under different flight altitude, speed, and attack angle. The results indicate that the phase shift is inversely proportional to the flight altitude and positively proportional to the flight speed and attack angle. Our work provides a theoretical guidance for the further research of phase shift characteristics and parameters inversion in plasma.
- electromagnetic propagation,
- electron density,
- phase shift,
- plasma sheath,
- propagation characteristic

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References (27)

References

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Research on phase shift characteristics of electromagnetic wave in plasma