Selecting RF Limiters
When selecting a RF limiter it is important to know the parameters that you need to specify. Below are a list of the key parameters to look out for when selecting a limiter:
Input Power (dBm) or Threshold Level: This is the maximum input power that the limiter will allow. Any power above this level will be limited.
Flat Leakage (dB): This is the power that leaks through when the device is under high input power conditions.
Spike Leakage (dB): This is the power that leaks through when a high power pulse is applied to the limiter.
Type: Most limiters can be designed using Pin Diodes or Schottky diodes. These can also be designed using a MMIC process.