Accession Number : AD0282163

Title :   CALCULATION OF DISTRIBUTED CONSTANTS OF MULTIWIRE LINES,

Corporate Author : POLYTECHNIC INST OF BROOKLYN N Y MICROWAVE RESEARCH INST

Report Date : 10 MAY 1962

Pagination or Media Count : 29

Abstract : Synthesis with multiwire line is a new technique, which is useful, in higher frequencies, in meeting broader requirements. The characteristics of networks synthesized with multiwire lines can be determined by the distributed constants of the lines along with their lengths. Exact formulae for the distributed constants are known only for lines with simple constructions such as coaxial, balanced pairs and star quads. This analysis treats the method of calculating the distributed constants of a line consisting of three conductors, one is the shield and the other two are inner conductors. The method takes its origin from H. Kaden's, but a great deal of contrivances has been given to obtain fast convergence. A short table is given for the distributed capacitances and inductances of the line, in which one of the two inner conductors is coaxial with the shield and the other off-axial. This configuration can easily be transformed into other configurations with both inner conductors off-axial with the shield. Some approximate formulae are also given to allow a faster estimation of the distributed constants of the line. Comments are also made on slot-coupled lines and symmetrical two-wire lines. (Author)

Descriptors :   (*TRANSMISSION LINES), (*ELECTROSTATIC CAPACITANCE), (*INDUCTANCE), (*WIRE), (*ELECTRICAL NETWORKS), MATRICES(MATHEMATICS), SHIELDING, COAXIAL CABLES

Distribution Statement : APPROVED FOR PUBLIC RELEASE