Title :
An approximate variational solution to the step discontinuity in finline
Author :
Olley, Chris A. ; Rozzi, T. ; Rycroft, C.M.D.
Author_Institution :
GEC-Marconi Res. Centre, Great Baddow, UK
fDate :
6/1/1989 12:00:00 AM
Abstract :
The variational method is applied to a step discontinuity in unilateral finline on the basis of a simplified description of the finite modes, as modes of a symmetrical finned waveguide. A prudent choice of the trial field in the electric and the magnetic formulations allows the derivation of economical simple equivalent circuits with frequency-independent elements over a full waveguide band for a broad range of practical step ratios
Keywords :
fin lines; variational techniques; waveguide theory; approximate variational solution; equivalent circuits; finite modes; finline; frequency-independent elements; step discontinuity; step ratios; symmetrical finned waveguide; Circuit analysis; Circuit synthesis; Eigenvalues and eigenfunctions; Equivalent circuits; Finline; Integral equations; Matched filters; Planar waveguides; Resonance; Waveguide discontinuities;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
