Continuous Wave (CE)

A source model with a constant envelope.

blockType: SubSystem

Path in the library:

/RF/Circuit Envelope/Sources/Continuous Wave (CE)

Description

Block Continuous Wave (CE) simulates constant modulation at a carrier frequency in a circuit envelope simulation environment. RF.

The block implements the ratio

on the carrier frequency depending on the type of source.

The block icon Continuous Wave (CE) It is dynamic and displays the current source type and the status of the noise parameter. This table shows how the block icon changes depending on the parameter values. Source type and Add phase noise.

The flag Add phase noise Source type: Ideal voltage Source type: Ideal current Source type: Power

Not installed

continuous wave ce

continuous wave ce 1

continuous wave ce 2

Installed

continuous wave ce 3

continuous wave ce 4

continuous wave ce 5

Ports

Conserving

# + — electrical port
electricity

Details

The electrical port corresponding to the positive terminal of the RF circuit.

Program usage name

+

# − — electrical port
electricity

Details

The electrical port corresponding to the negative terminal of the RF circuit.

Program usage name

−

Parameters

# Source type — source type
Ideal voltage | Ideal current | Power

Details

Ideal voltage — the unit simulates a constant voltage envelope on the parameters specified in the parameter Carrier frequencies, Hz carrier frequencies. The envelope has real and imaginary parts defined by the parameters Constant in-phase value, V and Constant quadrature value, V.
Ideal current — the block simulates the DC envelope on the parameters specified in the parameter Carrier frequencies, Hz carrier frequencies. The envelope has real and imaginary parts defined by the parameters Constant in-phase value, A and Constant quadrature value, A.
Power — the unit simulates a constant voltage envelope

where
- — the value of the parameter Available power;
- — the value of the Source impedance (ohms) parameter;
- — the value of the Angle (degrees) parameter.

Values	`Ideal voltage` \| `Ideal current` \| `Power`
Default value	`Ideal voltage`
Program usage name	`source_type`
Tunable	No
Evaluatable	Yes

# Constant in-phase value, V — common-mode voltage component at carrier frequencies

Details

The value of the common-mode voltage component in volts, given as a real number.

Dependencies

To use this parameter, set for the parameter Source type meaning Ideal voltage.

Default value	`0.0`
Program usage name	`const_I_v`
Tunable	No
Evaluatable	Yes

# Constant in-phase value, A — common-mode component of current at carrier frequencies

Details

The value of the common-mode component of the current in amperes, given as a real number.

Dependencies

To use this parameter, set for the parameter Source type meaning Ideal current.

Default value	`0.0`
Program usage name	`const_I_i`
Tunable	No
Evaluatable	Yes

# Constant quadrature value, V — quadrature component of voltage at carrier frequencies

Details

The value of the quadrature component of the voltage in volts, given as a real number.

Dependencies

To use this parameter, set for the parameter Source type meaning Ideal voltage.

Default value	`0.0`
Program usage name	`const_Q_v`
Tunable	No
Evaluatable	Yes

# Constant quadrature value, A — quadrature component of the current at carrier frequencies

Details

The value of the quadrature component of the current strength in amperes, given as a real number.

Dependencies

To use this parameter, set for the parameter Source type meaning Ideal current.

Default value	`0.0`
Program usage name	`const_Q_i`
Tunable	No
Evaluatable	Yes

# Source impedance, Ohm — input resistance of the source

Details

The input resistance of the source in ohms, set as a positive real number. The value must be greater than or equal to 1e−18 Om.

Dependencies

To use this parameter, set for the parameter Source type meaning Power.

Default value	`0.0`
Program usage name	`R`
Tunable	No
Evaluatable	Yes

# Available power, W — available carrier frequency power

Details

Available power at carrier frequencies, specified as a vector of real numbers.

Dependencies

To use this parameter, set for the parameter Source type meaning Power.

Default value	`0.0`
Program usage name	`power_magnitude`
Tunable	No
Evaluatable	Yes

# Angle, degrees — power phase angle

Details

The phase angles of power at carrier frequencies, given as a vector of real numbers.

Dependencies

To use this parameter, set for the parameter Source type meaning Power.

Default value	`0.0`
Program usage name	`power_angle`
Tunable	No
Evaluatable	Yes

# Carrier frequencies, Hz — carrier frequency

Details

The carrier frequency, set as a positive real scalar.

Default value	`0`
Program usage name	`carrier_freq`
Tunable	No
Evaluatable	Yes

# Add phase noise — adding phase noise

Details

Select this option to add phase noise to a system with a continuous signal source.

Default value	`false (switched off)`
Program usage name	`simulate_local_noise`
Tunable	No
Evaluatable	Yes

# Phase noise frequency offset, Hz — frequency shift of phase noise

Details

The frequency offset of the phase noise in Hz, specified as a scalar or vector.

The frequency offset values must be within the frequency band of the envelope used in the simulation. For more information, see the description of the block. Configuration (CE).

Dependencies

To use this option, check the box Add phase noise.

Default value	`1.0`
Program usage name	`noise_freq_off`
Tunable	No
Evaluatable	Yes

# Phase noise level, dBc/Hz — phase noise level

Details

The phase noise level in dBn/Hz, set as a scalar or vector.

The frequency offset values must be within the frequency band of the envelope used in the simulation. For more information, see the description of the block. Configuration (CE).

Dependencies

To use this option, check the box Add phase noise.

Default value	`-Inf`
Program usage name	`noise_lvl`
Tunable	No
Evaluatable	Yes

# Automatically estimate impulse response duration — automatic estimation of pulse response duration

Details

Select this option to automatically calculate the pulse response for phase noise. Uncheck this box to set the pulse response duration manually using the parameter Impulse response duration, s.

Dependencies

To use this option, check the box Add phase noise.

Default value	`true (switched on)`
Program usage name	`auto_t_imp`
Tunable	No
Evaluatable	Yes

# Impulse response duration, s — duration of the impulse response

Details

The duration of the pulse response used to simulate phase noise, specified as a scalar in seconds. The impulse response cannot be set if the amplifier is non-linear.

The frequency resolution of the phase noise profile is limited by the duration of the pulse response used to simulate it. Increase this duration to increase the accuracy of the phase noise profile. If the frequency offset resolution of the phase noise is too high for the specified duration of the pulse response, a warning message is displayed indicating the minimum duration required to achieve the required resolution.

Dependencies

To use this option, uncheck the box. Automatically estimate impulse response duration.

Default value	`1e-10`
Program usage name	`t_imp`
Tunable	No
Evaluatable	Yes