论文部分内容阅读
本文用保角变换方法分析了共焦椭圆截面电缆,推导了在相同特性阻抗下一般共焦椭圆电缆和圆形同轴电缆的衰减常数比公式。计算实例表明,对于实心内导体结构,圆形同轴电缆衰减可显著大于共焦椭圆电缆;在这种意义下可以认为圆截面并非同轴电缆最佳截面。当然衡量最佳截面要全面考虑理论上和实际中的种种因素。本文所使用的保角变换方法将是探索最低衰减同轴电缆截面的一个有力工具。
In this paper, the conformal transform method is used to analyze the confocal elliptical cross-section cable, and the decay constant ratio formula of general confocal elliptical cable and round coaxial cable under the same characteristic impedance is deduced. The calculation example shows that for a solid inner conductor structure, the circular coaxial cable attenuation can be significantly greater than the confocal elliptical cable; in this sense, it can be considered that the circular cross section is not the best cross section of the coaxial cable. Of course, to measure the best section to fully consider both theoretical and practical factors. The conformal transform method used in this article will be a powerful tool to explore the cross section of the lowest attenuation coaxial cable.