5.21.2020 Nonlinear Simulation of RF Amplifiers in Keysight Genesys SystemVue and ADS Presentation.pptx
- 1. Eamon Nash Nonlinear Simulation of RF Amplifiers in Keysight Genesys, SystemVue and ADS ©2020 Analog Devices, Inc. All rights reserved. 1 // October 26, 2024
- 2. Agenda ► Analog Devices’ RF Amplifier Family ► Software and Hardware Prototyping Tools ► Introduction to Sys-Parameters ► Measured and Simulated Results using Sys-Parameter Datasets ► Temperature-Dependent Sys-Parameter Models ► Migrating Sys-Parameter data to Keysight ADS ► Summary and Conclusions ©2020 Analog Devices, Inc. All rights reserved. 2 // October 26, 2024
- 3. Analog Devices – RF Amplifiers ► Wideband Devices with Frequency Coverage from DC to 95 GHz ► RF Output Power Levels up to 46dBm/40W ©2020 Analog Devices, Inc. All rights reserved. 3 // October 26, 2024 LNA Gain Block Driver Amp GaAs PA GaN PA Wideband Distributed Amplifier
- 4. 4 // ADI Wideband Power Amplifiers: We’ve got you covered
- 5. 5 // ADI Wideband Low Noise Amplifiers: Continued Innovation Coming HMC46x: 20GHz LNAs Family HMC841x: 10GHz LNAs Family HMC840x: 30GHz LNAs Family HMC112x: 50GHz LNAs Family HMC-AUH312: 80GHz LNA Family ADL7003 50 – 95GHz LNAFamily
- 6. Software and Hardware Prototyping Tools ► Evaluation Boards ► X-Microwave Blocks ► Gerber Files ► S-Parameters ► ADIsimRF Models ► AMP_F Models for AWR VSS ► Sys-Parameter Models for Keysight Genesys and SystemVue ©2020 Analog Devices, Inc. All rights reserved. 6 // October 26, 2024
- 7. 7 Keysight Genesys and SystemVue Keysight Genesys ► Affordable RF Design tool with Circuit, System and Electromagnetic simulators ► RF Circuit Synthesis of lumped / distributed matching, filters, oscillators, mixers, splitters, couplers, transmission lines & PLL. ► RF System Simulation with Sys-Parameters Keysight SystemVue ► Electronic System Level (ESL) design tool with Integrated RF and Baseband system simulators ► RF System Simulation with Sys-Parameters ► 5G, Phased Array, Wifi, Automotive / Military Radar standards verification libraries
- 8. 8 A Typical Sys-Parameter Model ► Spreadsheet-based Device Model ► Data Tabulated vs Frequency ► Model Parameters: – Gain, S11, S22, Reverse Isolation – P1dB, PSAT, IP3, IP2 – NF, Phase Noise, – AM-AM, AM-PM, – DC Current and Voltage, – Temperature ► Data Subsets allowed ► Default Data in ADI Library – Gain – NF – OP1dB – Reverse Isolation – OIP3 – S11 – S22
- 9. 9 ADI’s Sys-Parameter Library ► 23 Gain Blocks ► 9 GaN PAs ► 10 Driver Amplifiers ► 37 LNAs ► 33 PAs ► 17 Wideband Distributed Amplifiers ► 11 Mixers
- 10. Installing the Newest Library (www.analog.com/sys-parameters) ► aa ©2020 Analog Devices, Inc. All rights reserved. 10 // October 26, 2024 Down load Install Chec k
- 11. 11 // HMC788A Gain and Pout vs. Pin at 2140 MHz Simulated (data exported to Excel) Measured ZO=50 Ω Out Source1=CW: 10000 MHz at RFPwrIn dBm PORT=1 Source FrequencyDataName=AnalogDevicesInc_dataHMC788ALP2E.csv HMC788ALP2E_1
- 12. 12 // HMC903LP3E AM-to-AM and AM-to-PM @ 12GHz Simulated Measured
- 13. 13 // Determining PSAT ► PSAT is set to OP1dB +2 dB in the absence of model ► OIP2 is set to OP1dB +20 dB in the absence of model data
- 14. Psat for GaN Amplifiers HMC1114 Pout and Gain vs. Pin at 3.2 GHz Simulated (data exported to Excel) Measured ZO=50 Ω Port_2 PORT=1 Source PSAT_Delta=7 dB10 FrequencyDataName=AnalogDevicesInc Sys-Parameters_dataHM… HMC1114LP5DE_SysParameters_1
- 15. ACLR – Measured vs. Simulated – ADL5320 Pin (dBm) ACLR (dB) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 -90 -85 -80 -75 -70 -65 -60 -55 -50 -45 -40 Simulated Measured PSAT_Delta=2 dB10 FrequencyDataName=AnalogDevicesInc Sys-Parameters_dataAD… ADL5320_5V_SysParameters_1 S1=Comb: RFfreq MHz at RFpwr dBm, Carriers: 11, BW: 5 MHz PORT=1 MultiSource_1 PORT=2 ZO=50 Ω Port_2
- 16. 16 // Alternative ACP Simulation Method
- 17. 17 // EVM vs Input Power PORT=2 ZO=50 Ω Port_2 S1=Mod RF: 16QAM, RFfreq MHz at RFpwr dBm PORT=1 MultiSource_1 FrequencyDataName=AnalogDevicesInc Sys-Parameters_dataAD… ADL5602_SysParameters_1 Simulated Measured Source: 16QAM, 1MSPS, Root Raised COS Filter, Alpha = 0.35
- 18. 18 // Linear Analysis and Matching ZO=50 Ω Port_2 ZO=50 Ω Port_1 FrequencyDataName=AnalogDevicesInc_dataHMC788ALP2E.csv HMC788ALP2E_1 Sys-Parameters S-Parameters
- 19. Temperature Simulation – ADPA7007CHIP a ©2020 Analog Devices, Inc. All rights reserved. 19 // October 26, 2024
- 20. Migrating Datasets to the AMP2 Model in ADS HMC637ALP5E.S2P ©2020 Analog Devices, Inc. All rights reserved. 20 // October 26, 2024
- 21. HMC1132 AMP2 Model in ADS ©2020 Analog Devices, Inc. All rights reserved. 21 // October 26, 2024
- 22. 22 // Summary and Conclusions • Extensive Sys-Parameter Library • Accurate modeling of power sweeps, SNR, ACPR and EVM • For detailed Linear Analysis and Matching Circuit development, use S-Parameter data • New models include temperature dependency • Data migration path to ADS using Amplifier2 model www.analog.com/sys-parameters
- 23. Eamon Nash Nonlinear Simulation of RF Amplifiers in Keysight Genesys, SystemVue and ADS ©2020 Analog Devices, Inc. All rights reserved. 23 // October 26, 2024
Editor's Notes
- #7: Internally complex. Externally quite simple RF Power In Volts Out
- #8: A complete dataset does not need to be provided. Where data is not provided, internal rules-of thumb will be used. For example if IP2 data is not provided Genesys will interpolate an OIP2 value that is equal to OP1dB plus 20 dB. Question for Eric: can models from the ADI library be easily augmented? Can absolute IP2 and PSAT be added to the .CSV dataset
- #9: Also includes S-Parameter Files
- #11: Power sweep at 10 GHz
- #12: AM/PM is not modelled with default data AM/PM data can be added to the model to support simulation of AM/PM
- #13: Can Psat data be added?
- #14: Simulator will issue warnings about the large delta between P1dB and Psat
- #15: Measured Psat gets worse faster because we are using the small signal IP3 Measurement setup uses 11 sub-carriers. How do you set alpha and peak to average ratio and shape of spectrum
- #16: Need to be careful setting up this simulation. For example, when you set the symbol rate, you also need to define the analysis bandwidth on the measurement side Was not able to get rid of 8PSK in windown
- #20: Writing an ap note on this on adi and keysight side Not planning to make an AMP2 library at this time Is this called an ADS circuit? What to if you don’t have Genesys or SystemVue
- #21: Be careful with driving model too hard
- #22: Can Models be augmented with additional data