Abstract:

A circular groove guide loaded with plasmas is analyzed using the mode matching method. The characteristic equation of circular groove guide loaded with plasmas is derived. Effects of plasma physical parameters on dispersion curve of TE11 mode are calculated using the characteristic equation. The calculated results show that the physical parameters of plasmas have great effect on the characteristic of TE11 mode. For instance, when the plasma density rises from 5×10^15/m3 to 5×10^16/m3, the cutoff frequency of TE11 mode changes from 4.6 GHz to 13.8 GHz. The changes of cutoff frequency of TE11 mode loaded with different plasma parameters can be found. The results provide guidelines for applications of circular groove guide loaded with plasmas.

Key words:

plasma, circular groove guide, characteristic equation