S-Parameter Measurements and Stability Analysis for the MAX2640 LNA
Stability analysis of the MAX2640 LNA is performed using S-parameter measurements. Multiple test cases confirm the validity of the S-parameter data and that the device is stable up to 5GHz. This application note gives the amount of inductance required on the VCC line for optimum stability. It also summarizes the performance at 315MHz for an automotive keyless-entry application and the match required.
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