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MixerWithLO (Mixer with Internal Local Oscillator)

Symbol

Available in ADS

Parameters

Name

Description

Units

Default

ZRef

Reference impedance for all ports

Ohm

50

DesiredIF

Desired mixer IF output signal (used for Budget analysis only)

None

RF plus LO

ConvGain

Conversion gain, use x + j × y, polar(x,y), dbpolar(x,y) for complex value

None

dbpolar(0,0)

SP11

Port 1 reflection, use x + j × y, polar(x,y), dbpolar(x,y), vswrpolar(x,y) for complex value

None

polar(0,0)

SP22

Port 2 reflection, use x + j × y, polar(x,y), dbpolar(x,y), vswrpolar(x,y) for complex value

None

polar(0,180)

NF

Double sideband noise figure

dB

1

ReferToInput

Specify gain compression with respect to input or output power of device: OUTPUT=refer to output; INPUT=refer to input

None

OUTPUT

SOI

Second order intercept

dBm

1000

TOI

Third order intercept

dBm

1000

LO_Freq

Mixer local oscillator frequency

GHz

1

Range of Usage

ZRef > 0
DesiredRF = 0 (RF plus LO), 1 (RF minus LO)
SPij > 0 (ij=11; 22)
NF ≥ 0 dB
LO_Freq > 0

Notes/Equations
  1. MixerWithLO is a two port mixer model with internal oscillator.
  2. This component is a schematic design that uses internal models for Mixer2 and I_1Tone. The schematic design is shown here:
  3. See documentation for the internal components Mixer2 and I_1Tone for their usage detail.
  4. The internal Mixer2 model has parameter SideBand=BOTH. This MixerWithLO outputs both the RF+LO and RF-LO sidebands. However, there is no RF or LO leakage.
  5. Internal to the Mixer2 model, the NF parameter is used to set the Mixer2 parameters for NFmin=NF, Sopt=0, and Rn=max( ZRef/4 × (10NF/10-1), tinyreal), where tinyreal is an internal simulator value for the smallest real value allowed.
  6. For use with Budget Analysis, the DesiredRF parameter identifies which of the output sidebands is to be tracked for Budget measurements.
  7. Regarding SOI and TOI, the MixerWithLO must be output-matched in order to validate SOI and TOI.
    By default, SOI and TOI are blank resulting in no nonlinearity. TOI may be set without setting SOI. However, if SOI is set, then setting TOI is required. For more information about SOI and TOI, refer to the Mixer2 component documentation.
  8. Examples demonstrating this model use in a Budget analysis are located in the ADS Examples area at: $HPEESOF_DIR/examples/Tutorial/RF_Budget_Examples_prj. See Budget_Mixer.dsn.
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