IMPATT Diode Calculator: Resonant Frequency and CW Power

By RF Wireless Expert Team

Last Updated: August 25, 2026

This page provides information about an IMPATT diode calculator. The formulas for calculating resonant frequency and CW power are also explained.

EXAMPLE:

INPUTS:
- η (Efficiency) = 15%
- Vo (Operating Voltage) = 100 volts
- Io (Operating Current) = 200mA
- Vd (Carrier Drift Velocity) = 2E5
- L (Drift Region Length) = 6 µm
OUTPUTS:
- CW Output Power = 3 Watts
- Resonant Frequency = 16.67 GHz

IMPATT Diode Calculator Formulas

The following equations are used in the IMPATT diode calculator:

IMPATT diode formula, equation

Where:

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