PA Design Using SpectreRF
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August 2010 Product Version 10.1
2
Contents
Power Amplifier Design Using SpectreRF ......................................................................... 3
Purpose ............................................................................................................................ 3
Audience ......................................................................................................................... 3
Overview ......................................................................................................................... 3
Introduction to Power Amplifiers ....................................................................................... 3
The Design Example ........................................................................................................... 4
Three Testbenches for PA Measurements ...................................................................... 4
Example Measurements Using SpectreRF.......................................................................... 6
Lab 1: Power Related Measurement (Swept hb) ............................................................ 6
Lab 2: Linearity Measurement (Swept hb with hbac) .................................................. 19
Lab 3: Stability and S-Parameter Measurements (PSS and PSP) ................................. 30
Lab 4: Large Signal S-Parameter Measurement (LSSP Wizard) .................................. 44
Lab 5: Load-Pull Measurements (Swept hb) ................................................................ 52
Lab 6 OFDM based 802.11a/n signal generation flow ................................................ 75
Lab 7: Envelope Analysis (ENVLP and ACPR Wizard) .............................................. 85
Using the ACPR Wizard .................................................................................. 104
Lab 8: Envelope Analysis (fast-mode) ....................................................................... 110
Lab 9 EVM functions for OFDM signals .................................................................. 118
Conclusion ...................................................................................................................... 129
Reference ........................................................................................................................ 129
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