Numerical and Experimental Investigation on the Attenuation of Electromagnetic Waves in Unmagnetized Plasmas Using  Inductively Coupled Plasma Actuator

LIN Min (林敏); XU Haojun (徐浩军); WEI Xiaolong (魏小龙); LIANG Hua (梁华); SONG Huimin (宋慧敏); SUN Quan (孙权); ZHANG Yanhua (张艳华)

doi:10.1088/1009-0630/17/10/07

Plasma Science and Technology > 2015 > 17(10): 847-852. > DOI: 10.1088/1009-0630/17/10/07

LIN Min (林敏), XU Haojun (徐浩军), WEI Xiaolong (魏小龙), LIANG Hua (梁华), SONG Huimin (宋慧敏), SUN Quan (孙权), ZHANG Yanhua (张艳华). Numerical and Experimental Investigation on the Attenuation of Electromagnetic Waves in Unmagnetized Plasmas Using Inductively Coupled Plasma Actuator[J]. Plasma Science and Technology, 2015, 17(10): 847-852. DOI: 10.1088/1009-0630/17/10/07

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Numerical and Experimental Investigation on the Attenuation of Electromagnetic Waves in Unmagnetized Plasmas Using Inductively Coupled Plasma Actuator

Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an 710038, China

Funds: supported by National Natural Science Foundation of China (Nos. 51276197, 11472306 and 11402301)

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Received Date: December 29, 2014

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Abstract

Abstract

The attenuation of electromagnetic (EM) waves in unmagnetized plasma generated by an inductively coupled plasma (ICP) actuator has been investigated both theoretically and experimentally. A numerical study is conducted to investigate the propagation of EM waves in multilayer plasma structures which cover a square flat plate. Experimentally, an ICP actuator with dimensions of 20cm×20cm×4cm is designed to produce a steady plasma slab. The attenuation of EM waves in the plasma generated by the ICP actuator is measured by a reflectivity arch test method at incident waves of 2.3 GHz and 10.1 GHz, respectively. A contrastive analysis of calculated and measured results of these incident wave frequencies is presented, which suggests that the experiment accords well with our theory. As expected, the plasma slab generated by the ICP actuator can effectively attenuate the EM waves, which may have great potential application prospects in aircraft stealth.
- unmagnetized plasma,
- electromagnetic (EM) wave,
- attenuation,
- ICP,
- stealth

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References

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