Full‐wave convergence analysis of microstrip transmission parameters

Abstract

Full-wave electromagnetic simulators have enabled microwave designers to simulate complex geometries which sometimes cannot be done by conventional computer-aided design (CAD) nodal simulators. However, designers should pay close attention to how the numerical implementation of the full-wave analysis can affect the results of the electromagnetic simulation. This study uses various modeling parameters to determine the convergence of a GaAs microstrip's simulated transmission line characteristics. A commercially available program, Sonnet's "EM," was used for the analysis but the results can be generalized for any full-wave analysis. This article explores the limits of Sonnet as well as showing that a designer must use a convergence analysis to prove the validity of an electromagnetic simulation.

Efficient use of closed-form Green's functions for the analysis of planar geometries with vertical connections

“…Analyzing radiating structures in em requires adding loss to the system, but with the formulation presented here these structures can be characterized better, in the sense of accuracy and computational efficiency. One can refer to [25] for general information on em software. In all of the geometries showing the test circuits, the arrows on the port transmission lines show the reference planes used in the calculation and in the de-embedding of the circuit parameters.…”

“…. After changing the order of integrations, the following auxiliary function is defined and cast into closed form via the Sommerfeld identity: (25) where designates the approximation process with complex exponentials via the GPOF method. Note that has a multiplicative term of , which is equivalent to in the spatial domain.…”

A model for discretization error in electromagnetic analysis of capacitors

“…1 and 2) 0.5-mm square with dielectric constant 10.0 and dielectric thickness 100 nM is modeled on a 10-mm-thick substrate 1-mm square using Sonnet . 1 A full description of this software is given in [3].…”