Analysis of higher-order modes in coaxial conical transmission line

被引：0

作者：

Liu, Xingxun ^{[1
]}

Qi, Wanquan ^{[1
]}

Mu, Chenchen ^{[1
]}

机构：

[1] Beijing Inst Radio Metrol & Measurement, Beijing, Peoples R China

来源：

2017 INTERNATIONAL WORKSHOP ON ELECTROMAGNETICS: APPLICATIONS AND STUDENT INNOVATION COMPETITION (IEEE IWEM 2017) | 2017年

关键词：

coaxical conical transmission line (co-conical line); higher-order mode; cutoff wavelength;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Analysis of cutoff characteristic for TE wave and TM wave is very important to design the geometry of structure (the angle of the cones) for TEM cell. In the paper, take the co-conical line for example. The half angle of inner conical conductor is 10 degrees and that of outer conical conductor is 1.893 degrees. An iteration method programmed in Matlab is used to solve the roots of the transcendental functions. Then the wavelength of the first three TE modes and TM modes is obtained. The cutoff phenomena in conical lines occur gradually, which is related to frequency and spatial location. The first mode is TE11 mode with cutoff wavelength 0.65r that is the same with solution presented by NIST. Therefore the calculated method can be proved effectively.

引用

页码：41 / 43

页数：3

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