Simulation study of the relationship between low-frequency communication EM wave transmissivity of plasma sheaths and irradiation microwave E-field strength

Chen Yuqing; Wang Lei; Zhao Lishan; He Juntao

doi:10.11884/HPLPB202335.220361

Volume 35 Issue 8

Jul. 2023

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Chen Yuqing, Wang Lei, Zhao Lishan, et al. Simulation study of the relationship between low-frequency communication EM wave transmissivity of plasma sheaths and irradiation microwave E-field strength[J]. High Power Laser and Particle Beams, 2023, 35: 089001. doi: 10.11884/HPLPB202335.220361

Citation:

Chen Yuqing, Wang Lei, Zhao Lishan, et al. Simulation study of the relationship between low-frequency communication EM wave transmissivity of plasma sheaths and irradiation microwave E-field strength[J]. High Power Laser and Particle Beams, 2023, 35: 089001. doi: 10.11884/HPLPB202335.220361

Citation:

Chen Yuqing, Wang Lei, Zhao Lishan, et al. Simulation study of the relationship between low-frequency communication EM wave transmissivity of plasma sheaths and irradiation microwave E-field strength[J]. High Power Laser and Particle Beams, 2023, 35: 089001. doi: 10.11884/HPLPB202335.220361

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Simulation study of the relationship between low-frequency communication EM wave transmissivity of plasma sheaths and irradiation microwave E-field strength

doi: 10.11884/HPLPB202335.220361

College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

Received Date: 2023-01-12
Accepted Date: 2023-03-28
Rev Recd Date: 2023-04-15

Available Online: 2023-05-15

Publish Date: 2023-08-15

Abstract

Abstract

During the flight of hypersonic vehicle, plasma sheath will be produced on the surface due to the influence of surface shockwave. Because the plasma sheath will absorb, reflect and scatter electromagnetic waves, the communication signal will be attenuated or even interrupted, causing “blackout” problem. Theoretically, the interaction between the plasma sheath and microwave is nonlinearly changing with electric field, so there may be a suitable E-field amplitude and irradiation time interval to make electromagnetic wave transmissivity rise. For this possibility, Finite Element Analysis is used to conduct a two-dimensional coupled simulation of the plasma sheath flow field and the electromagnetic field on the hypersonic vehicle’s surface, and the change of the plasma sheath transmissivity after microwave irradiation is obtained. The plasma sheath was irradiated for 30 ns with electric field of 5×10⁴ V/m, 1×10⁵ V/m, 2.5×10⁵ V/m, 5×10⁵ V/m, respectively. The maximum transmissivity to 1.2 GHz and 1.6 GHz electromagnetic waves is enhanced after irradiation. It provides a new possibility to solve the “blackout” problem.
- hypersonic vehicle,
- plasma sheath,
- blackout,
- microwave,
- coupling simulation

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References(17)

References

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