How to Test RF Gain Compression

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Analog Signal Generator
+ Analog Signal Generator
Analog Signal Generator
+ Analog Signal Generator

RF Gain Compression Test

RF gain compression testing requires a controlled source, a device or signal path under test, and a calibrated output measurement path. The analog signal generator applies a continuous-wave stimulus while input power is stepped across the operating range, allowing the output response to be measured at each level.

The test works by comparing the measured output power against the expected linear gain response. As the amplifier or RF path approaches compression, output power no longer increases at the same rate as input power, allowing engineers to identify the compression region and the 1 dB compression point.

RF Gain Compression Test Solution

Gain compression testing requires a controlled RF stimulus that can step input power while maintaining stable frequency and signal quality. Compact analog signal generation is used to drive an amplifier or RF signal path through its linear and compressed operating regions. Keysight analog signal generators support RF device testing that include gain and gain compression characterization, with fast frequency and amplitude switching, high output power, and low phase noise. These capabilities support repeatable input-power sweeps for engineering validation and manufacturing-oriented RF test.
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