Engee documentation

Variable Attenuator (CE)

The model of the variable attenuator.

blockType: SubSystem

Path in the library:

/RF/Circuit Envelope/Elements/Variable Attenuator (CE)

Description

Block Variable Attenuator (CE) attenuates the signal power by a preset factor, known as _ input loss_ in dB. Using the block Variable Attenuator (CE), you can change the attenuation of the Engee input signal during simulation. Usually, the unit adjusts the impedance of the RF circuit at the input and output ports. Attenuators can be used to attenuate the power of the incoming signal in order to protect RF circuits.

Ports

Input

# Att — control signal, dB
scalar

Details

The control signal Engee, set as a scalar. Represents the _ introduced losses_ in dB.

Data types

Float64

Complex numbers support

No

Conserving

# In+ — The input signal
electricity

Details

The electrical port connected to the input signal.

Program usage name

In+

# In− — The input signal
electricity

Details

The electrical port connected to the input signal.

Program usage name

In−

# Out+ — The output signal
electricity

Details

The electrical port connected to the output signal.

Program usage name

Out+

# Out− — The output signal
electricity

Details

The electrical port connected to the output signal.

Program usage name

Out−

Parameters

Parameters

# Minimum attenuation, dB — the lowest value of insertion loss or attenuation

Details

The lowest value of insertion loss or attenuation applied to the signal, given as a scalar, in dB.

Default value

0.001

Program usage name

att_min

Tunable

No

Evaluatable

Yes

# Maximum attenuation, dB — the highest value of insertion loss or attenuation

Details

The highest value of insertion loss or attenuation applied to the signal, given as a scalar, in dB.

Default value

1000.0

Program usage name

att_max

Tunable

No

Evaluatable

Yes

# Input impedance, Ohm — input impedance

Details

The input impedance of the attenuator, given as a scalar, in Ohms.

Default value

50.0

Program usage name

in_imp

Tunable

No

Evaluatable

Yes

# Output impedance, Ohm — Output impedance

Details

The output impedance of the attenuator, given as a scalar, in ohms.

Default value

50.0

Program usage name

out_imp

Tunable

No

Evaluatable

Yes