Capacitor

Model capacitor for circuit envelope analysis

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Libraries:
RF Blockset / Circuit Envelope / Elements

Description

The Capacitor block models a capacitor in circuit envelope environment.

Examples

Analysis of Frequency Response of RF System

Uses a few techniques to calculate the steady-state frequency response for a filter-based RF system built from RF Blockset™ Circuit Envelope library blocks. The first technique performs static analysis (harmonic balance) on a circuit comprising of inductors and capacitors. The second technique does time domain simulation using a similar circuit built with the Filter library block. The third technique facilitates small-signal analysis to obtain the frequency response of a filtering system that exhibits nonlinearity at a given operation point. This example helps you validate a circuit envelope model using a static analysis in the frequency domain, a time domain simulation, and small signal analysis in cases where the system exhibits non-linearity.

Open Script

Frequency Response of RF Transmit/Receive Duplex Filter

Use blocks from the RF Blockset™ Circuit Envelope library to simulate a transmit/receive duplex filter and calculate frequency response curves from a broadband white-noise input. Blocks from the DSP System Toolbox™ libraries generate the input signal, process the output signal, and display the results.

Open Script

Parameters

Capacitance — Capacitance value

1e-12 F (default) | real number

Capacitance value, specified as a real number. Specify the units of the capacitance from the corresponding drop-down menu.

If you set this parameter value between 0 and 1e-18 F, the block uses a value equal to 1e-18 F during simulation. By default, the value is 1e-12 F.

Version History

R2021b: Capacitor block icon updated

Starting in R2021b, the Capacitor block icon has updated. When you open a model created before R2021b containing a Capacitor block, the software replaces the block icon with the R2021b version.