Title :
Linear analysis of a magnetized plasma loaded helix type slow wave structure
Author :
Hongquan, Xie ; Jia, You ; Junbo, Wang
Author_Institution :
Coll. of Inf. Eng., Southwest Univ. of Sci. & Technol., Mianyang, China
Abstract :
A helix type slow wave structure filled with plasma is immersed in a finite longitudinal magnetic field. Taking into account the effect of the magnetized plasma and the dielectric, the system is separated radially into two regions. By means of sheath model and Maxwell equation, the distribution of the electromagnetic field is established. Using the boundary conditions of each region, the dispersion relation of the slow wave structure is derived. The trend of change for dispersion characteristic and linear gain is analyzed respectively in detail in the cases of various densities of plasma and different strength of the electromagnetic field by numerical computation. Some useful results are obtained on the basis of the discussion.
Keywords :
Maxwell equations; electromagnetic field theory; magnetic field effects; plasma density; slow wave structures; Maxwell equation; dielectrics; electromagnetic field; finite longitudinal magnetic field; helix type slow wave structure; linear analysis; magnetized plasma; numerical computation; sheath model; Dispersion; Electron tubes; Gain; Magnetic fields; Mathematical model; Microwave theory and techniques; Plasmas; finite magnetic field; hybrid modes; linear gain; plasma;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5768389
