Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes ›...
Transcript of Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes ›...
![Page 1: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/1.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 1
The new paradigm for nonlinear measurements, modeling, and simulation with ADS of nonlinear components
Agilent NVNA & X-Parameters
![Page 2: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/2.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 2
Measuring nonlinearities for use directly in design
A1,P1
F1in
F1out
F2out
F3out
A1,P1A2,P2
A3,P3
Wouldn’t it be nice if you could measure and display the full amplitude and phase information of each spectral component? Wouldn’t it be even nicer to then use it directly in ADS harmonic balance or circuit envelope simulation?
![Page 3: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/3.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 3
Nonlinear Vector Network Analyzer (NVNA): The new industry standard for nonlinear measurements
![Page 4: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/4.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 4
S-parameters: linear measurement, modeling, & simulation
![Page 5: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/5.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 5
What are X-Parameters?
X-parameters are the mathematically correct superset of S-parameters, applicable to both large-signal and small-signal conditions, for linear and nonlinear componentsThe math exists!
We can measure, model, & simulate with X-parameters Each part of the puzzle has been created The pieces now fit together seamlessly
![Page 6: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/6.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 6
X-parameters come from the Poly-Harmonic Distortion (PHD) Framework
![Page 7: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/7.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 7
X-parameter Concept: Approxs. to NL Mapping
![Page 8: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/8.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 8
X-Parameters: Why They are Critical:
, ,
( )11
( )( ), 1 1
,,1
*1(| |) (( ) )
ef g gh ef hef
S fF fe f
T f hgh
g
hgh
g h hB X X A AA P A X P AP − + ⋅= +⋅+∑ ∑
X-Parameters: Why They are CriticalPredict performance of cascaded NL components
11( )j AP e ϕ= “New” Terms!
Cascaded Nonlinear Amplifiers: Nonlinear effects of mismatch versus drive
•Unambiguously identifiable (simple, automated extraction) from automated set of measurements•Fully nonlinear vector quantities (Magnitude and phase of all harmonics)•Extremely accurate for high-frequency, distributed nonlinear circuits•Cascadable (correct behavior in mismatched environment)
![Page 9: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/9.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 9
Results: Design of Cascade vs. Measurement of Cascade
![Page 10: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/10.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 10
Amplitude Calibration
Vector Calibration
Phase Calibration
Phase Reference
X-Parameter extraction/multi-tone source
Standard PNA-X Network Analyzer
New!! Agilent Calibrated Phase Reference
New!! Agilent NVNA
NVNA System Configuration
![Page 11: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/11.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 11
Black-Box Characterization & Behavioral Modeling
Actual Amp Circuit
Design of Module or Instrument Front End
Detailed Circuit Model (SPICE/ADS) of IC
Measurement-Based Model• Circuit models don’t exist• Completely protect design IP
Generate Behavioral
Model
![Page 12: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/12.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 12
PHD Framework: Simulating with Measured Data
Memory Interface
NVNA ApplicationTake X-parameter
measurements
Agilent PHD CodeExtract X-parameters
Export model file
Works inHB and Envelope,Not in Transient
![Page 13: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/13.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 13
Example: X-Parameters Verification
Amplifier component models from individual measured X-parameters
![Page 14: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/14.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 14
Results Cascaded Simulation vs. Measurement
![Page 15: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/15.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 15
Third Order Intercept Simulation
![Page 16: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/16.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 16
Input / Output Spectrums & ACPR
SpectralRe-growth
![Page 17: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/17.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 17
PA Linearization using X-Parameters in ADS Digital Pre-Distortion Linearization Design Guide
![Page 18: Agilent NVNA & X-Parameters - University Of Illinoisemlab.illinois.edu › ece451 › appnotes › X_Parameters.pdfWouldn’t it be even nicer to then use it directly in ADS harmonic](https://reader033.fdocuments.in/reader033/viewer/2022060406/5f0f56677e708231d443a959/html5/thumbnails/18.jpg)
NVNA & X-Parameters – MTT 2008
Jack Sifri May 15, 2008Page 18
Summary