正N边形同轴传输线特性阻抗的近似计算  

Approximate Computation of Characteristic Impedance of N-regular-polygon Coaxial Transmission Line

作　　者：李玲[1] 姚斌[1] 郑勤红[1] 

机构地区：[1]云南师范大学物理与电子信息学院,云南昆明650092

出　　处：《云南师范大学学报（自然科学版）》2006年第1期42-45,共4页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金(10365002);云南省自然科学基金(2004A0028M)资助项目

摘　　要：综合分析同轴线电容近似计算方法,推导出正边形同轴传输线特性阻抗的近似计算公式,实例计算了正三边形、正四边形、正五边形、正六边形、正七边形、正八边形同轴传输线的特性阻抗,通过理论分析和数值比较验证近似计算公式的计算精度。计算结果表明:当R1/R2 1,近似计算公式精度不高,当R1/R2 0.8时,公式具有较高的计算精度,可用于电磁工程问题的设计与计算。In this paper,the approximate computation formula of characteristic impedance of N-regular-polygon coaxial transmission line with the same polygon center conductor is analyzed and derived based on the related research. The accuracy of the formula is confirmed by comparing the numerical results. The results show that the accuracy of approximate computation is poor when, and the accuracy of approximate computation is good when. The impedance data may be applicable to the exact design and calculate of transmission line engineering..

关 键 词：正N边形同轴传输线 特性阻抗 电容 近似计算公式 

分 类 号：O451[理学—无线电物理]