Calculation of Radiated Emission from STP Cable by Chain-Parameter-Matrix

被引:0
|
作者
Kuwabara, Nobuo [1 ]
Matsushima, Tohlu [1 ]
Fukumoto, Yuki [1 ]
机构
[1] Kyushu Inst Technol, Fac Engn, Kitakyushu, Fukuoka, Japan
来源
2021 JOINT IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, SIGNAL & POWER INTEGRITY, AND EMC EUROPE (EMC+SIPI AND EMC EUROPE) | 2021年
关键词
radiated disturbance; radiated electromagnetic field; shield cable; STP cable; chain-parameter-matrix;
D O I
10.1109/EMC/SI/PI/EMCEurope52599.2021.9559295
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
Radiated emission from shielded twisted pair (STP) cable was calculated using a chain-parameter-matrix. The series connection of the matrix represented the transmission line inside the shield, and the common-mode (CM) cunent was obtained by solving the matrix equation. The induction voltage on the outside of the shield was determined from the CM cunent using the shield's transfer impedance. The cunent on the outside of the shield was calculated from this induction voltage. And then, the radiated electric field was calculated from this cunent. The matrix elements representing the transmission line between conductors and shield were determined from the measurement, and the transfer impedance was also determined from the measurement. The line constants between shield and grnund were determined from the theory by assuming the shield as a copper rnd. The maximum cunent on the outside of the shield and the maximum radiated electric field were measured in the frequency range from 30 MHz to 300 MHz, and these were compared to the calculated value. The calculation results of the maximum cunent intensity were well agreed with the measured value, and the calculation results of the maximum radiated electric-field strength were almost agreed with the measured value.
引用
收藏
页码:1087 / 1092
页数:6
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