摘要
分析了具有夹持杆和金属屏蔽筒并且考虑了螺旋带径向厚度的螺旋线慢波系统的色散特性和耦合阻抗。通过用切比雪夫多项式来展开螺旋带上的面电流,用真空层来模拟螺旋带的厚度,用均匀分层介质来等效介质夹持杆,得到了色散方程和耦合阻抗的表达式。与实验数据相比,考虑螺旋带厚度所得出的结果明显优于未考虑其厚度的结果。利用该模型设计了两个工作在3GHz的螺旋线慢波系统。
The hybrid model for analyzing the helix tape considering its radial thickness is developed in this paper. In the hybrid model, by expanding the surface currents on the helix tape in a series of Chebyshev polynomials, simulating the helical thickness with vacuum layer and equaling the rods with multiple azimuthally symmetric layers, the dispersion equation and interaction impedance of helical slow wave structure with arbitrary tape width, supported by a radially stratified dielectric layer and enclosed by a metallic shell are obtained. The calculating results using hybrid model presented in the paper show good agreement with the experiment results.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2002年第6期905-910,共6页
High Power Laser and Particle Beams
基金
国家863高功率微波技术领域资助课题(863 803 4 4 2)
