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由内导体和空心外导体所组成的同轴传输线是电磁工程中一类重要的传输线。本文提出用边界元分析这类传输线内导体偏置时，对其特性阻抗的影响，获得各种传输线内导体偏置时的特性阻抗数据。这些特性阻抗数据不仅可为各种偏心传输线的准确设计提供理论依据，而且可为同轴传输线的加工制作精度提供理论参数
The coaxial transmission line composed of inner conductor and hollow outer conductor is an important kind of transmission line in electromagnetic engineering. In this paper, the influence of the boundary impedance on the characteristic impedance of the conductors in such transmission lines is analyzed, and the characteristic impedance data of the conductors in various transmission lines are obtained. These characteristic impedance data can not only provide theoretical basis for accurate design of various eccentric transmission lines, but also provide theoretical parameters for processing accuracy of coaxial transmission lines