Propagation characteristics of terahertz wave in plasma sheath around air vehicle

Xingning Geng; Degang Xu; Ji’ning Li; Kai Chen; Kai Zhong; Jianquan Yao

doi:10.11884/HPLPB202032.190291

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Mar 2020

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JOURNAL OF MECHANICAL ENGINEERING > 2020 > 32(3): 033101.

Xingning Geng, Degang Xu, Ji’ning Li, Kai Chen, Kai Zhong, Jianquan Yao. Propagation characteristics of terahertz wave in plasma sheath around air vehicle[J]. JOURNAL OF MECHANICAL ENGINEERING, 2020, 32(3): 033101. doi: 10.11884/HPLPB202032.190291

Citation:

Xingning Geng, Degang Xu, Ji’ning Li, Kai Chen, Kai Zhong, Jianquan Yao. Propagation characteristics of terahertz wave in plasma sheath around air vehicle[J]. JOURNAL OF MECHANICAL ENGINEERING, 2020, 32(3): 033101. doi: 10.11884/HPLPB202032.190291

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Propagation characteristics of terahertz wave in plasma sheath around air vehicle

doi: 10.11884/HPLPB202032.190291

Xingning Geng^{1, 2
,},
Degang Xu^{1, 2},
Ji’ning Li^{1, 2
,
,},
Kai Chen^{1, 2},
Kai Zhong^{1, 2},
Jianquan Yao^{1, 2}

Received Date: 11 Aug 2019
Rev Recd Date: 21 Nov 2019
Publish Date: 17 Mar 2020

Abstract

Abstract

In this paper, the plasma electron density and collision frequency are calculated based on the flow field simulation of RAM C-III air vehicle, and an inhomogeneous plasma model is established according to the calculation results. The effects of plasma density, plasma thickness, plasma collision frequency and external magnetic field on the propagation characteristics of terahertz wave in plasma are analyzed using scattering matrix method. The results show that the propagation loss increases with plasma electron density and plasma thickness, while the transmittance decreases first and then increases with the increasing of collision frequency. When an external magnetic field is applied, the propagation characteristics of the left-handed polarized terahertz wave will be improved, while for the right-handed polarized terahertz wave, the application of magnetic field induces an absorption peak, which shifts to high frequency range with the increasing of magnetic induction intensity. This work may make a contribution to solving the problem of communication blackout.
- terahertz wave,
- plasma sheath,
- scattering matrix method,
- propagation characteristics,
- external magnetic field

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References(18)

References

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Propagation characteristics of terahertz wave in plasma sheath around air vehicle

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