Title :
Use of the method of moments to find the charge densities and capacitances of a shielded twisted pair transmission line
Author :
James, Craig ; Norgard, John
Author_Institution :
Rome Lab., ERST, Rome, NY, USA
Abstract :
The surface charge densities and associated capacitances of a shielded twisted pair transmission line are found for quasi static conditions, under balanced and longitudinal excitations. The unknown charge density is expanded in a Fourier series. The series is used as basis functions for a method of moments solution to find the unknown series coefficients. This paper describes the geometric structure and the formation of the integral equation that describes the potential distribution as a function of the unknown charge densities. The simplifying approximations made are pointed out, as well as the limitations to the solution caused by the approximations
Keywords :
Fourier series; cable sheathing; capacitance; electric charge; electromagnetic shielding; integral equations; method of moments; transmission line theory; twisted pair cables; Fourier series; approximations; balanced excitations; basis functions; capacitances; charge densities; geometric structure; integral equation; longitudinal excitations; method of moments; potential distribution; quasi static conditions; shielded twisted pair transmission line; Cable shielding; Capacitance; Conductors; Fourier series; Moment methods; Power cables; Predictive models; Springs; Transmission lines; Wires;
Conference_Titel :
Electromagnetic Compatibility, 1996. Symposium Record. IEEE 1996 International Symposium on
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-3207-5
DOI :
10.1109/ISEMC.1996.561243
