Accession Number:

AD0248999

Title:

SINUSOIDALLY MODULATED WAVE GUIDES FOR TRAVELING-WAVE ANTENNAS

Descriptive Note:

Corporate Author:

WASHINGTON UNIV SEATTLE

Personal Author(s):

Report Date:

1960-09-01

Pagination or Media Count:

44.0

Abstract:

THE SINUSOIDALLY VARIED WAVEGUIDES PRODUCE THE WAVES WHOSE AMPLITUDE AND PHASE ARE MODULATED ALONG THE SURFACE. ONE WALL OF THE GUIDE IS REPLACED BY SINUSOIDALLY VARIED IMPEDANCE9 THE SPACING BETWEEN WALLS IS ALSO VARIED SINUSOIDALLY. THE FLOQUETS THEOREM YIELDS THE RELATIONS BETWEEN EACH HARMONIC AND THE PROPAGATION CONSTANT. THE PERIODIC STRUCTURE IS ALSO STUDIED IN TERMS OF THE GENERALIZED KL - BETA L DIAGRAMWHICH INCLUDES THE LEAKY AS WELL AS THE SLOW WAVES. THE SUCCESSIVE APPROXIMATION METHOD IS APPLIED TO YIELD RELATIVELY SIMPLE EXPRESSIONSFOR THE APERTURE FIELD AND IT IS SHOWN THAT BY SUITABLE CHOICE OF VARIOUS PARAMETERS, THE DESIRED AMPLITUDE AND PHASE OF THE APERTURE FIELD CAN BE OBTAINED

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE