# Documentation

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# Continuous Wave

Model constant envelope source

• Library:
• SimRF / Circuit Envelope / Sources

## Description

The Continuous Wave block models a constant modulation on a carrier in the SimRF™ circuit envelope simulation environment. For an introduction to RF simulation, see the example, Simulate High Frequency Components.

The block implements the relation

`$v\left(t\right)={v}_{0}{e}^{j{\omega }_{k}t}$`

or

`$i\left(t\right)={i}_{0}{e}^{j{\omega }_{k}t}$`

at the carrier ωk, depending on the source type.

## Parameters

expand all

• `Ideal Voltage` — The block simulates a constant voltage envelope v0 at the specified Carrier frequencies. The envelope has real and imaginary parts specified by the Constant in-phase value and Constant quadrature value parameters.

• `Ideal Current` — The block simulates a constant current envelope i0 at the specified Carrier frequencies. The envelope has real and imaginary parts determined by the Constant in-phase value and Constant quadrature value parameters.

• `Power` — The block simulates the constant voltage envelope

`${v}_{0}=2\sqrt{{\text{P}}_{0}\text{Re}\left({Z}_{s}\right)}{e}^{j\frac{\pi }{180}\varphi }$`

where:

• P0 is the value of the Available power parameter

• Zs is the value of the Source impedance (ohms) parameter.

• ϕ is the value of the Angle (degrees) parameter.

In-phase modulations for each of the Carrier frequencies, specified as a vector of real numbers. Specify the units from the corresponding drop-down list.

#### Dependencies

To enable this parameter, on the Source type tab, choose `Ideal voltage` or ```Ideal current```.

Quadrature modulations for each of the RF circuit carrier frequencies, specified as a vector of real numbers. Specify the units from the corresponding drop-down list.

#### Dependencies

To enable this parameter, on the Source type tab, choose `Ideal voltage` or ```Ideal current```.

Input impedance of source, specified as a positive real number or a complex number. The complex number must contain real and imaginary parts greater than or equal to `1e-18` ohms.

#### Dependencies

To enable this parameter, on the Source type tab, choose `Power`.

Available power at the specified Carrier frequencies, specified as a vector of real numbers. Specify the units from the drop-down list. The default value is `0` `W`.

#### Dependencies

To enable this parameter, on the Source type tab, choose `Power`. The default value is `0` `W`

Phase angle of power waves at the specified Carrier frequencies, specified as a vector of real numbers. The default value is `0` degrees.

#### Dependencies

To enable this parameter, on the Source type tab, choose `Power`.

Carrier frequencies, specified as a vector of real positive numbers. The elements in the carrier frequencies are combinations of fundamental tones and corresponding harmonics in the Configuration block. The default value is `0` `Hz`.

Select this option to internally ground and hide the negative terminals. To expose the negative terminals, clear the option. By exposing these terminals, you can connect them to other parts of your model.

By default, this option is selected.