Computer Analysis of Dielectric Waveguides: A Finite-Difference Method

• Published in: IEEE transactions on microwave theory and techniques Vol. 32; no. 5; pp. 531 - 541
• Main Authors: Schweig, E., Bridges, W.B.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-05-1984; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Capacitance; Circuit properties; Dielectric losses; Electric, optical and optoelectronic circuits; Electronics; Exact sciences and technology; Finite difference methods; Finite element methods; Harmonic analysis; Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits; Millimeter wave integrated circuits; Power cables; Reflection; Semiconductor waveguides; Millimetric wave; Wave propagation; Dielectric materials; Integrated circuit; Propagation mode; Circular waveguide; Waveguide; Wave dispersion; Rectangular waveguide; Finite difference method
• ISSN: 0018-9480; 1557-9670
• DOI: 10.1109/TMTT.1984.1132717

A method for computing the modes of dielectric guiding structures based on finite differences is described. The numerical computation program is efficient and can be applied to a wide range of problems. We report here solutions for circular and rectangular dielectric waveguides and compare our solutions with those obtained by other methods. Limitations in the commonly used approximate formulas developed by Marcatili are discussed.