About Gain Compression Simulation

To calculate the X dB gain compression point of an amplifier or mixer, use the XDB simulation component, from the Simulation-XDB palette. The simulator sweeps the input power upward from a small value, and when the required amount of gain compression is seen at the output, the analysis is complete. A common calculation is the 1-dB gain-compression point; this is the default.

Refer to the following topics for details of gain compression simulation:

• Performing a Gain Compression Simulation describes the minimum setup requirements for a gain-compression simulation.

• Example of Gain Compression Simulation (ADS only) is a detailed setup for calculating gain compression, using a power amplifier as the example.

• Gain Compression Concept is a brief explanation of the gain compression calculation, plus information on how it compares to a harmonic balance simulation.

• XDB Simulation Parameters provides details on the tabs and fields in the XDB simulation controller.

Note You must have the Gain Compression license to run the simulator. You can build the examples in this chapter without the license, but you will not be able to simulate them.