# capacitance

Calculate capacitance

Since R2021b

## Syntax

``capacitance(object,frequency)``
``c = capacitance(object,frequency)``
``capacitance(___,Name=Value)``

## Description

````capacitance(object,frequency)` calculates and plots the capacitance of a capacitor over the specified frequency.```

example

````c = capacitance(object,frequency)` calculates the capacitance of a capacitor over the specified frequency.```
````capacitance(___,Name=Value)` calculates the capacitance with additional options specified using name-value arguments.```

## Examples

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Create an interdigital capacitor using default properties.

`capacitor = interdigitalCapacitor`
```capacitor = interdigitalCapacitor with properties: NumFingers: 4 FingerLength: 0.0137 FingerWidth: 3.1600e-04 FingerSpacing: 3.0000e-04 FingerEdgeGap: 3.4100e-04 TerminalStripWidth: 5.0000e-04 PortLineWidth: 0.0019 PortLineLength: 0.0030 Height: 7.8700e-04 GroundPlaneWidth: 0.0030 Substrate: [1x1 dielectric] Conductor: [1x1 metal] IsShielded: 0 ```

Calculate the capacitance of the capacitor at 8 GHz.

`capacitance(capacitor,8e9,DeEmbed=1,IncludeParasitics=1)`

## Input Arguments

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Interdigital capacitor, specified as an `interdigitalCapacitor` object.

Data Types: `char` | `string`

Frequency to calculate the capacitance in hertz, specified as a nonnegative scalar or vector of nonnegative elements.

Data Types: `double`

### Name-Value Arguments

Example: `DeEmbed=1`

Dembed feeder line, specified as `0` or `1`. When you specify `1`, the function deembeds the feeder line.

Include parasitic effects, specified as `0` or `1`. When you specify `1`, the function includes the parasitic effects.

Input and output line impedance to feed the capacitor, specified as a positive scalar in ohms.

## Output Arguments

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Capacitance of the capacitor, returned as a scalar or vector in farads.

Data Types: `double`

## Version History

Introduced in R2021b