Accurate Wide-Range Design Equations for the Frequency-Dependent Characteristics of Parallel Coupled Microstrip Lines (Corrections)

IEEE Transactions on Microwave Theory and Techniques (Impact Factor: 2.23). 04/1985; DOI: 10.1109/TMTT.1985.1133005
Source: IEEE Xplore

ABSTRACT In the above paper, the following misprints have to be corrected.

  • [Show abstract] [Hide abstract]
    ABSTRACT: This paper focuses on the derivation of an enhanced transmission-line model allowing the stochastic analysis of a realistic multiconductor interconnect. The proposed model, which is based on the expansion of the well-known telegraph equations in terms of orthogonal polynomials, includes the variability of geometrical or material properties of the interconnect due to uncertainties like fabrication process or temperature. A real application example involving the frequency-domain analysis of a coupled microstrip and the computation of the parameters variability effects on the transmission-line response concludes this paper.
    IEEE Transactions on Components, Packaging, and Manufacturing Technology 01/2011; 1(8):1234-1239. · 1.26 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The frequency characteristics of two dimensional planar MMIC transmission lines and circuits, three dimensional electronic packaging circuits, and cavity backed aperture and microstrip antennas loaded with dielectric and/or magnetized ferrite materials were analyzed using advanced full wave analytical and numerical techniques, such as the Finite Element Method (FEM) and Method of Moments / Spectral Domain Approach (MoM/SDA). For the two dimensional planar transmission lines the propagation characteristics examined included the effective dielectric constant, attenuation constant, and characteristic impedance. Anisotropic materials, such as sapphires, PTFE cloth, and ferrites were also modeled and analyzed. Substrate compensation was used in multilayer, multiconductor lines to minimize coupling and pulse distortion. A three dimensional vector finite element code was developed to simulate practical electronic packaging circuits, including microstrip / coplanar discontinuities, spiral inductors, filters, conducting vias, etc. A hybrid FEM/MoM approach was used in the analysis and design of cavity backed aperture and microstrip antennas loaded with dielectric and/or magnetized ferrite materials. The magnetization of the ferrite was used to tune the cavity over an extended bandwidth. In addition, analytical techniques were developed to evaluate efficiently and accurately the asymptotic matrix elements using the MoM/SDA. The computational efficiency was improved, in some cases, by a factor of 50 compared to conventional methods.
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of this research project is to study the time domain response of electromagnetic wave radiation, transmission and coupling in multilayered media. The following problems are pursued: (1) extensions and modifications to the double deformation technique; (2) propagation in nonconventional transmission structures; (3) signal distortion at discontinuities; (4) the effects of anisotropic material and nonlinear loads; (5) limitation of quasi-TEM approximation. We shall emphasize and seek to refine a powerful transform-domain formulation, the double deformation technique in order to have a unified way of interpreting the results. Yet other techniques such as the space-time domain integral equation method, the transmission line matrix method, the method of characteristics, and the method of moments are also to be applied to different problems as demanded by efficiency or ease of formulation. The research results can be applied to computer-aided design of hig-speed microelectronic integrated circuits, as well as to time-domain geophysics sub-surface probing, and active remote sensing with transient radar pulses.
    Massachusetts Inst. of Tech. Report. 07/1991;