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A new technique for the analysis of the dispersion characteristics of planar waveguides and its application to microstrips with tuning septums
Author(s) -
Schulz Uwe,
Pregla Reinhold
Publication year - 1981
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs016i006p01173
Subject(s) - planar , discretization , dispersion (optics) , method of lines , mathematical analysis , waveguide , dispersion relation , differential equation , physics , mathematics , partial differential equation , electrical impedance , optics , ordinary differential equation , computer science , differential algebraic equation , computer graphics (images) , quantum mechanics
An efficient method for calculating the dispersion characteristics of planar waveguide structures is presented, of which the principle is known as the ‘method of lines’ in mathematical literature. The wave equation is discretized in only one direction, and the resulting differential‐difference equation can be solved analytically. As an example of application the phase constant and the characteristic impedance of microstrips with tuning septums are calculated.