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Series RLC

Model series RLC network


Ladders Filters sublibrary of the Physical library


The Series RLC block models the series RLC network described in the block dialog box, in terms of its frequency-dependent S-parameters.

For the given resistance, inductance, and capacitance, the block first calculates the ABCD-parameters at each frequency contained in the vector of modeling frequencies, and then converts the ABCD-parameters to S-parameters using the RF Toolbox™ abcd2s function. See the Output Port block reference page for information about determining the modeling frequencies.

For this circuit, A = 1, B = Z, C = 0, and D = 1, where


and ω=2πf.

The series RLC object is a two-port network as shown in the following circuit diagram.


Main Tab

Resistance (ohms)

Scalar value for the resistance. The value must be nonnegative.

Inductance (H)

Scalar value for the inductance. The value must be nonnegative.

Capacitance (F)

Scalar value for the capacitance. The value must be nonnegative.

Visualization Tab

For information about plotting, see Create Plots.

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