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分析了波纹圆波导中由曲率所引起的模式耦合问题.从环形坐标系统中麦克斯韦方程出发导出了耦合系数的积分公式,并进一步推导了各模式间耦合系数的显式.
The problem of mode coupling caused by curvature in the corrugated circular waveguide is analyzed.The integral formula of the coupling coefficient is derived from the Maxwell equation in the toroidal coordinate system and the explicit coupling coefficient between each mode is deduced.