
Accession Number : AD0282945
Title : EXPERIMENTAL INVESTIGATION OF TRANSMISSIONLINE REPRESENTATIONS OF MICROWAVE PERIODIC CIRCUITS
Corporate Author : STANFORD UNIV CALIF MICROWAVE LAB
Personal Author(s) : CARSWELL,MARY IRENE
Report Date : APR 1962
Pagination or Media Count : 1
Abstract : Research is presented on transmission line models of a type of periodicallyloaded waveguide which is important to the design of high power traveling wave tubes and linear accelerators. A simple and wellknown model, referred to as the singleline model, is descr bed in terms of a single transmission line periodically loaded ith shunt susceptances; the model has the limitation that direct coupling between neighboring irises is not accounted for when the simple oneport element is used to represent the network properties of a thin transverse iris. The model is then improved in such a way that this limitation is removed to a first order of approximation; the iris is assumed to behave as a shunt twoport network coupling smooth transmission lines having the properties of appropriate normal waveguide modes. This latter formulation of the twoport representation of a waveguide iris is new. It is found experimentally that the new model of the structure, referred to as the twoline model, covers a class of circuits used in practical applications. (Author)
Descriptors : *TRANSMISSION LINES, *WAVEGUIDES, COUPLING CIRCUITS, LINEAR ACCELERATORS, MICROWAVE NETWORKS, TRAVELING WAVE TUBES, WAVEGUIDE COUPLERS, WAVEGUIDE IRISES
Distribution Statement : APPROVED FOR PUBLIC RELEASE