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The multitone signals make traditional analysis difficult even impossible if the circuits are highly nonlinear. Using multiple time variables allow an efficient representation of these signals. In this formulation the components with different rates of variation are decoupled, each disparate signal being represented by its own artificial time scale. The differential algebraic equations describing...
The simulation of large-scale analog circuits is very expensive. Instead of the circuit complex model, reduction of the computing effort implies using a macromodel capable to capture the behaviors of the original circuit while preserving its essential properties. Building such a model is based on a simplified and unitary description of the circuit, by establishing a simple relationship between the...
When simulating mixed-signal systems, designers are often dissatisfied either with performance or accuracy. A state-space based precomputation method for analog circuits at electrical level allows for a considerably faster simulation than with SPICE-like simulators. Utilizing an automatically generated SystemC interface, our simulation kernel analyzes mixed analog/digital circuits where the digital...
The nonlinear circuit models for power BAW resonators, which reproduce both amplitude-frequency and intermodulation effects, are presented. The “frequency warping” effect in high Q circuit simulation is analyzed.
The constraints to manage in a telecom splitter design are numerous and according to a given splitter structure, the choice became difficult. The paper proposes a software tool allowing the design of such filters. This one carries out the modelling of the electrical circuit configurations, and creates the corresponding computation code, used for simulation or optimisation. The methodology is detailed...
The purpose of this work is to optimize the design of an MSK modulator able to operate at a high data modulation. The optimization approach applies an experimental design methodology having in view to minimize the modulator response time. This methodology is traditionally applied by agronomists and chemists. We show how it can be perfectly suited to optimize electronic designs.
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