Dominant Wave Transmission Characteristics of a Multimode Round Waveguide

1 August 1952

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE

Vol. 40 (8) , 966-969
https://doi.org/10.1109/jrproc.1952.274110

Abstract

This paper presents some dominant wave transmission characteristics of multimode round waveguide lines in the 4-kmc range of frequencies. The use of such waveguide lines offers the advantages of lower transmission losses than obtainable with single-mode rectangular waveguide, and relative ease of making good joints. Possible mode conversion effects, including dominant mode elliptical polarization, have been examined and found to be innocuous. As a result, cross-polarized dominant waves can be used to provide two reasonably independent signalling channels at the same frequency in one pipe. The experimental results obtained with a straight line 2.812-inch inside diameter and length of 150 feet are given.

Keywords

This publication has 2 references indexed in Scilit:

Conductivity Measurements at Microwave Frequencies
Proceedings of the IRE, 1950
Microwave Repeater Research
Bell System Technical Journal, 1948