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Part 1:FET Amplifier and Load Pull DesignGuide
The first part covers using a basic Load Pull DesignGuide setup for a FET from the built-in ADS DemoKit. Also included are the use of variables, a stability network, the Smith Chart contours, and more. The skills you will learn in this part can be applied to other simulations.
A Lab is included in this part. This Lab topics are Load Pull design guide and stability for a FET amplifier design, including:
New Workspace with Load Pull Design Guide
Set up the DemoKit FET for Load Pull
Specify the Basic Variables and Simulate
Stability Network and Rectangular Load Sweep
Circular Sweep for Load Pull
Other Load Pull Results
Load Pull Summary
Part 2:Matching Designing and Optimization
This second part covers Optimization and Goals, including an overview of the ADS optimizer. It also covers how to use the Impedance Matching tool and more.
A Lab is included in this part. This Lab topics are Small-signal S-parameter optimization and designing matching networks for amplifiers and other designs. Optional is the Impedance Matching too. More details are:
Amplifier Design with Template
Simulate and examine Gain and Stability
Set up an Optimization controller and Goals
Enabling Variables or Parameters to be Optimized
Running an Optimization
Simulate with a Matching Network
OPTIONAL: Impedance Matching tool
Part 3:Harmonic Balance Techniques
This third part covers Harmonic Balance simulations, including swept variables, IP3 and 2-tone analysis.
There also is a Lab in this part, demonstrating Harmonic Balance simulations including swept variables, 2-tone simulations, equations for HB data, compression, and IP3. More details about the Lab are:
FET amplifier design
Basic HB 1-tone Simulation
Functions and Equations for Input Power and Zin
Gain Compression using XDB
Sweep Input Power and Bias Voltage
Output Power, Gain, and Power Sweep with a Slider
Two-tone HB Simulation with variables
Spectrum and Mix table
OPTIONAL: IP3 Simulation (Third Order Intercept Point)
Part 4:Circuit Envelope Simulations with Modulated Sources
The last part covers Circuit Envelope simulation, which uses modulated sources such as CDMA and GSM. The envelope data is also covered.
A Lab is included in this part, which demonstrating Circuit Envelope simulation using system components and a FET amplifier with GSM and CDMA modulated sources. More details about the Lab are:
Create a new Workspace
System Amp and PtRF source design
Envelope simulation controller setup
Simulate and plot the time domain response.
Simulate with Amp distortion
Amp with Demodulators for GSM
GSM Envelope Simulation with VAR setup
Copy FET AMP into the current workspace
CDMA setup for FET Amp
Example Data Display: ModSources_wrk
CDMA simulation and data equation
OPTIONAL – Distortion Effects using the Tune
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