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| Analysis of Channel Parameter on MPCA Propagation Properties |
| Xia Xin-ren; Yin Cheng-you |
| Electronic Engineering Institute of PLA, Hefei 230037, China |
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Abstract In order to cover the shortage of the current antenna for high power microwave weapon, the idea of a magnetized plasma channel used as antenna for radiating electromagnetic pulse is proposed. The normal modes of Magnetized Plasma Channel Antenna (MPCA) in lossy gas are analyzed. The concrete realization method of MPCA is simply described. The geometric-model of MPCA is created based on the operating principle of the antenna. The wave equations for the longitudinal electromagnetic fields and the relations between the transverse electromagnetic fields and longitudinal ones of magnetized plasma in generalized cylindrical coordinate are given. The strict characteristic equation of MPCA is deduced by using the boundary conditions of electromagnetic fields. Discussion is stressed on the variations of propagation constants with plasma channel parameters (plasma frequency and channel radius). The analysis shows that the influence of plasma frequency on the attenuation constant of MPCA is increasing, and an extremum point is appeared.
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Received: 09 March 2008
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2009, Vol. 31 
