Open AccessMeasurement and analysis of plasma antenna input impedance
Author(s) -
Zhiwei Liang,
Hao Sun,
Zhijiang Wang,
Jie Xu,
Yang Xu
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.4292
Subject(s) - impedance matching , antenna (radio) , electrical impedance , antenna tuner , input impedance , damping factor , acoustics , power (physics) , realization (probability) , plasma , computer science , physics , antenna measurement , antenna factor , telecommunications , mathematics , statistics , quantum mechanics
The frequency dependence of plasma-column antenna input impedance has been measured by a vector network analyzer with different applied exciting power. The experimental results show obvious resonance behavior of the impedance. The effect of plasma parameters on the input impedance was established by means of an equivalent circuit model and the characteristics of input current. This method is useful for the research of plasma antenna dynamic reconfiguration and the realization of fast impedance matching.