Nonlinear Analysis Using 2-Tone Harmonic Balance with Third and Fifth Order Intercepts as the Measurements

Description

This simulation setup performs a yield analysis based on a 2-tone harmonic balance analysis of the amplifier. The measurements are third and fifth order intercepts. When the simulation is complete the estimated yield is given, and the data is ready to be analyzed using the appropriate data displays.

Needed to Use Schematic

An amplifier schematic using nonlinear models must be inserted into the schematic. A sample schematic, Sample_Stat_PA, is initially present, inserted into the simulation schematic.

Main Schematic Settings

• Follow all the numbered steps in the upper left-hand box on this statistical analysis schematic
• Using the same parameters you initially used with the Amplifier DesignGuide, set the following:
  • Center frequency of the two input tones
  • Frequency spacing between the two tones
  • Available source power for both tones
  • Maximum order of the intermodulation terms to be calculated
  • (Source and load impedances at the fundamental and harmonic frequencies can also be set)

Data Display Options

There are 3 data displays associated with this schematic:

• Four YSH's with Third and Fifth Order Intercepts and Transducer Gain as the Measurements (YSH_2Tone_TOI_5OI.dds)
  • The measurements included are
    Third order low-side intercept
    Third order hi-side intercept
    Fifth order low-side intercept
    Fifth order hi-side intercept
• Transducer gain
  • The parameters Var1, Var2, Var3, and Var4 can be changed to any statistical component and the YSH will be immediately updated.
  • The yield specifications can be changed and the YSH will be immediately updated
  • The overall yield as well as the yield to each of the measurements are displayed
• Five MH's with Third and Fifth Order Intercepts and Transducer Gain as the Measurements (MH_2Tone_TOI_5OI.dds)
  • The measurements that are graphed are third order low-side intercept
    Third order low-side intercept
    Third order hi-side intercept
    Fifth order low-side intercept
    Fifth order hi-side intercept
    Transducer gain
  • Τhe vertical axis on each graph is number of occurrences
  • The number of pass, number of fail and overall yield are given
• SRP with Output Spectrum as the Measurement (SRP_1Tone_HD_Spect.dds)
  • The statistical response of the first through seventh harmonics at the output are graphed
  • The statistical response of the four high and low harmonics about the carrier are graphed
  • The yield, the mean, and the standard deviation, are given in chart form for
    Third order intercept, low side
    Third order intercept, hi side
    Fifth order intercept, low side
    Fifth order intercept, hi side
  • The yield specifications for each measurement can be changed
  • Total yield is given
    where YSH is Yield Sensitivity Histogram, MH is Measurement Histogram and SRP is Statistical Response Plot.

Schematic Name

YAS_2Tone_TOI_5OI
where YAS is Yield Analysis Schematic.

Data Display Names

YSH_2Tone_TOI_5OI.dds
MH_2Tone_TOI_5OI.dds
SRP_2Tone_TOI_5OI.dds

Yield Optimization Schematics

This section contains a description of each of each yield optimization schematic.