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采用双重场匹配法，对ＧＮＲＤ波导的横截面分区，在分区界面用横向的场匹配法计算了波导的传输模和衰减模色散特性及其本征模表达式；并在间隙不连续处用纵向的场匹配法求该处的主模传输系数和反射系数．本文提供的数据可作为ＧＮＲＤ波导多级带通滤波器设计的依据．
The double field matching method is used to calculate the transmission mode and attenuation mode dispersion of the waveguide and the eigenmode expression of the waveguide in the cross section of the GNRD waveguide at the zonal interface using the transverse field matching method. The field matching method to find the main mode transmission coefficient and reflection coefficient. The data provided in this paper can be used as a basis for the GNRD waveguide multi-stage bandpass filter design.