Abstract: Systems and methods are provided for providing protected three-dimensional components for simulation. A three-dimensional component may be accessed, wherein the three-dimensional component includes one or more characteristics of the three-dimensional component, and wherein certain values of the characteristics of the three-dimensional components are variable via a parameter. An encapsulation command may be received for the three-dimensional component, wherein the encapsulation command includes an encryption setting, an access control setting, and an identification of which values of the characteristics of the three-dimensional component are variable via a parameter. An encapsulation of the three-dimensional component may be generated, wherein the encapsulation is encrypted based on the encryption setting and the access control setting, and wherein, when the three-dimensional component is encrypted, the three-dimensional component is inaccessible outside of an authorized program.

Abstract: A system. The system includes a computing device having a processor, and a causality checker module communicably connected to the processor. The causality checker module is configured to utilize a rational function approximation to a frequency response to determine if a transfer function of a linear time invariant system is causal.

Abstract: A model synthesizer generates a state-space model of a structure from frequency domain parameters of the structure using a selected number of significant eigenvalues of a matrix derived from the frequency-domain parameters such that the quality of the fit of the model is improved. A matrix of the frequency-domain parameters is reshaped so as to improve performance of determination of the fit quality. Passivity violations in the model can be removed via regularization and error control such that the fit quality of the model after removal of the passivity violations is within a specified tolerance. Cholesky factorization can improve the performance of passivity violation detection. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

Abstract: A multi-zonal analysis processor-implemented system is provided for analyzing physical behavior of a multi-zonal physical object. Candidate multi-zonal engineering models, solution methods, and parameters associated with the engineering models and solution methods are selected for use in analyzing different zones of the physical object.

Abstract: In a system for simulations of fields related to physical objects by iteratively solving a system matrix equation, the system matrix is preconditioned using a modified Gauss-Seidel preconditioner so as to eliminate or reduce a sequential nature of the iterations, thus facilitating parallel solution of the conditioned system matrix.

Abstract: Disclosed are system and methods for simulating signal integrity structures using stable processed modes (e.g., matched traveling-wave power modes), and/or for creating response surfaces from stable response parameters.

Abstract: Physical systems modeled by matrix equations may simultaneously be simulated for multiple excitations using, for example, an adaptive Krylov iterative recycling method.

Abstract: In various embodiment, a simulator includes an analysis module for extracting transmission-line parameters of a transmission-line system from a network-parameter representation thereof, using discontinuity-detection-based phase unwrapping without introducing artificial discontinuities, and a simulator module for simulating the response of the transmission-line system to an input based on the extracted transmission-line parameters.

Abstract: Disclosed are domain-decomposition approaches to simulations of electromagnetic fields may that, in various embodiments, use second-order Robin transmission conditions at subdomain boundaries.

Abstract: A simulator includes an analysis module for extracting a state-space model of response of a physical system to an input from a frequency-domain representation thereof, using a SVD, and singular vectors thereof, of a Loewner matrix derived from the frequency-domain representation, and a simulator module for simulating the response of the physical system in the time domain based on the extracted state-space model.

Abstract: A system for automatically generating a report from engineering data stored in a database is comprised of a user computer having a browser for requesting an HTML file. A web server generates the requested HTML based on Active Server Pages technology. The ASP file includes script for instantiating a component. The component, a dynamic link library, includes an automation hierarchy. The ASP page includes script for actively generating the report through interaction with the instantiated objects. The HTTP protocol connects the user computer and the web server.