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为了对周期性盘荷圆波导中的电磁场进行分析和描述,提出了采用模式匹配技术,并根据波导模式表示出电磁场.首先在波导中考虑一个专门的盘荷隔板,由入射模引起的反射问题可采用模式匹配技术来解决;然后得到周期性负载波导的矩阵特征值方程;最后由方程的解可得到场结构的传播曲线.实验结果表明,每种模式都能与边界条件匹配,利用匹配方法分析周期线性结构中的场分布是可靠的.
In order to analyze and describe the electromagnetic field in a periodic circularly charged circular waveguide, a pattern matching technique is proposed and the electromagnetic field is expressed according to the waveguide mode. A special disk-loading spacer is firstly considered in the waveguide, and the reflection caused by the incident mode The problem can be solved by using the pattern matching technique, and then the matrix eigenvalue equation of periodic loading waveguides can be obtained. Finally, the propagation curve of the field structure can be obtained by solving the equations. The experimental results show that each mode can be matched with the boundary conditions, It is reliable to analyze the field distribution in the periodic linear structure.