25 lines
1.4 KiB
Text
25 lines
1.4 KiB
Text
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LC is simulation tool for the analysis of the electromagnetic
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properties of electrical interconnects. The full three-dimensional
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circuit is modeled, so all interactions are automatically included in
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the solution. The model can be excited by numerous types of waveforms,
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and the transient response measured using common values such as
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voltage and current. Circuit parameters such as inductance,
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capacitance, and impedance can be derived from the transient response,
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and frequency-domain results such as S-parameters can also be
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calculated. Far field radiation patterns can be obtained.
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LC is primarily an electromagnetic simulation and uses the
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Finite-Difference Time-Domain (FD-TD) technique. FD-TD is a full wave
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explicit solution of Maxwell's equations in three dimensions. In FD-TD,
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the rectangular volume enclosing the model is discretized into a large
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number of small cells, which may be uniformly-sized, or may vary in size
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within the simulation space. The dielectric, permeable, lossy, and
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conducting material properties of each cell are incorporated into the
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field updates, which are performed iteratively in small time steps.
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An interface between the electromagnetic simulation and the circuit
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simulation program SPICE is available within LC. This allows the user
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to add arbitrary SPICE circuits, such as drivers and loads, into the
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interconnect model. The interconnect performance is calculated using
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FD-TD while the lumped-element circuits are evaluated by SPICE.
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