A phenomenon that the radiated power may be enhanced when an antenna is surrounded by a finite plasma shell has been found in numerical and experimental studies. In this paper, a physical model was built to express the mechanism of the radiated enhancement. In this model, the plasma shell is treated as a parallel connection of a capacitance and a conductance whose parameters change with the system parameters (plasma density, collision frequency, and antenna frequency). So, the radiated enhancement can be explained by the resonance between the plasma shell and the infinite free space. Furthermore, the effects of system parameters on the radiated power are given and effects corresponding to mechanisms are performed based on the physical model.
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September 2014
Research Article|
September 11 2014
A physical model of radiated enhancement of plasma-surrounded antenna
Xiaotian Gao (高孝天)
;
Xiaotian Gao (高孝天)
Harbin Institute of Technology
, 92 West Dazhi Street, Nan Gang District, 150001 Harbin, China
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Chunsheng Wang (王春生);
Chunsheng Wang (王春生)
a)
Harbin Institute of Technology
, 92 West Dazhi Street, Nan Gang District, 150001 Harbin, China
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Binhao Jiang (江滨浩);
Binhao Jiang (江滨浩)
Harbin Institute of Technology
, 92 West Dazhi Street, Nan Gang District, 150001 Harbin, China
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Zhonglin Zhang (张仲麟)
Zhonglin Zhang (张仲麟)
Harbin Institute of Technology
, 92 West Dazhi Street, Nan Gang District, 150001 Harbin, China
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a)
e-mail: wangcs@hit.edu.cn
Phys. Plasmas 21, 093301 (2014)
Article history
Received:
May 12 2014
Accepted:
August 26 2014
Citation
Xiaotian Gao, Chunsheng Wang, Binhao Jiang, Zhonglin Zhang; A physical model of radiated enhancement of plasma-surrounded antenna. Phys. Plasmas 1 September 2014; 21 (9): 093301. https://doi.org/10.1063/1.4895485
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