Accession Number : ADA182775

Title :   Electromagnetic Dispersion of a Coaxial Waveguide with an Arbitrary Radial Dielectric Profile.

Descriptive Note : Final rept. Sep 82-Sep 85,

Corporate Author : UTAH UNIV SALT LAKE CITY DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Puzella,Angelo M

PDF Url : ADA182775

Report Date : Apr 1987

Pagination or Media Count : 168

Abstract : The electromagnetic dispersion of a coaxial waveguide with an arbitrary radial dielectric profile is obtained by direct integration of Maxwell's equations. The equations are written in cylindrical coordinates and the standard Fourier transformations are performed in the time (t to omega), axial (z to kz), and azimuthal (phi to m) coordinates. The resulting equations are combined to form either one second order differential equation (m = O) or two coupled second order equations (m not equal to O) in the radial coordinate. These equations are integrated for fixed omega and m by a 'shooting' method with kz as the shooting parameter that is, kz is varied until the boundary conditions are satisfied. This yields kz as a function of omega, and hence the dispersion. The field components are directly obtained from the integration. The formulation handles both smoothly varying and discontinuous jumps in the radial dielectric profile. (Author)

Descriptors :   *DIELECTRICS, *COAXIAL CONFIGURATIONS, *WAVEGUIDES, BOUNDARIES, COORDINATES, CYLINDRICAL BODIES, DISPERSING, ELECTROMAGNETISM, EQUATIONS, FOURIER TRANSFORMATION, INTEGRATION, MAXWELLS EQUATIONS, PROFILES

Subject Categories : Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE