Effect of aperture field distribution on the maximum radiated power at atmospheric pressure

The air breakdown in the high-power antenna near-field region limits the enhancement of the radiated power. A model coupling the field equivalent principle and the electron number density equation is presented to study the breakdown process in the near-field region of the circular aperture antenna a...

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Published inChinese physics B Vol. 26; no. 11; pp. 324 - 328
Main Author 赵朋程;郭立新
Format Journal Article
LanguageEnglish
Published 01.11.2017
Subjects
击穿过程
场分布
大气压
孔径
环形天线
电子数密度
空气击穿
辐射功率
Online AccessGet full text
ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/26/11/115101

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Abstract The air breakdown in the high-power antenna near-field region limits the enhancement of the radiated power. A model coupling the field equivalent principle and the electron number density equation is presented to study the breakdown process in the near-field region of the circular aperture antenna at atmospheric pressure. Simulation results show that, although the electric field in the near-field region is nonuniform, the electron diffusion has small influence on the breakdown process when the initial electron number density is uniform in space. The field magnitude distribution on the aperture plays an important role in the maximum radiated power above which the air breakdown occurs. The maximum radiated power also depends on the phase difference of the fields at the center and edge of the aperture, especially for the uniform field magnitude distribution.
AbstractList The air breakdown in the high-power antenna near-field region limits the enhancement of the radiated power. A model coupling the field equivalent principle and the electron number density equation is presented to study the breakdown process in the near-field region of the circular aperture antenna at atmospheric pressure. Simulation results show that, although the electric field in the near-field region is nonuniform, the electron diffusion has small influence on the breakdown process when the initial electron number density is uniform in space. The field magnitude distribution on the aperture plays an important role in the maximum radiated power above which the air breakdown occurs. The maximum radiated power also depends on the phase difference of the fields at the center and edge of the aperture, especially for the uniform field magnitude distribution.
Author 赵朋程;郭立新
AuthorAffiliation School of Physics and Optoelectronic Engineering, Xidian University, Xi＇ an 710071, China
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10.1063/1.4768220
10.1063/1.3462320
10.1103/PhysRevLett.104.015002
10.1109/TDEI.2016.006047
10.1103/PhysRevLett.100.035003
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Notes Pengcheng Zhao, Lixin Guo（School of Physics and Optoelectronic Engineering, Xidian University, Xi＇ an 710071, China）
field equivalent principle aperture antenna air breakdown maximum radiated power
11-5639/O4
The air breakdown in the high-power antenna near-field region limits the enhancement of the radiated power. A model coupling the field equivalent principle and the electron number density equation is presented to study the breakdown process in the near-field region of the circular aperture antenna at atmospheric pressure. Simulation results show that, although the electric field in the near-field region is nonuniform, the electron diffusion has small influence on the breakdown process when the initial electron number density is uniform in space. The field magnitude distribution on the aperture plays an important role in the maximum radiated power above which the air breakdown occurs. The maximum radiated power also depends on the phase difference of the fields at the center and edge of the aperture, especially for the uniform field magnitude distribution.
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References Zhao P (7) 2015; 24
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Zhao P (10) 2015; 24
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Stutzman W L (11) 1998
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  publication-title: Antenna Theory and Design
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SubjectTerms 击穿过程
场分布
大气压
孔径
环形天线
电子数密度
空气击穿
辐射功率
Title Effect of aperture field distribution on the maximum radiated power at atmospheric pressure
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