Cavity Model for the Slot Radiation of an Enclosure Excited by Printed Circuit Board Traces With Different Loads

被引：5

作者：

Poschalko, Christian ^{[1
]}

Selberherr, Siegfried ^{[2
]}

机构：

[1] Robert Bosch AG, Diesel & Gasoline Syst, A-1110 Vienna, Austria

[2] Vienna Univ Technol, Inst Microelect, A-1040 Vienna, Austria

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2009年 / 51卷 / 01期

关键词：

Cavity model; common-mode coupling; electrically equipped enclosures; radiated emission; ATTACHED CABLES; EMI; EMISSIONS; PLANES; FDTD;

D O I：

10.1109/TEMC.2008.2008815

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：

Traces on a printed circuit board (PCB) couple to the cavity consisting of the PCB ground plane and a metallic enclosure cover. We introduce this common-mode coupling of a PCB trace to the cavity field by an analytical model that is verified with 3-D simulations using HFSS. The cavity field causes radiated emission from the slots of the cavity. For an accurate calculation of the cavity field inside the enclosure and the radiated emission, we consider the radiation loss by a multiport approach. Comparisons of the analytical results for the radiated field to measurements show good agreement. Radiated emission can be calculated for arbitrary geometric enclosure shapes as a function of frequency, position of the trace on the PCB, and trace load/driver impedances.

引用

页码：18 / 24

页数：7

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