IMPATT Diode Calculator: Resonant Frequency and CW Power

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:

Where:

• f = Resonant Frequency
• P = CW Output Power
• Vd = Carrier Drift Velocity
• L = Drift region length
• η = Efficiency (numeric value)
• Pdc = Operating Power = Max. operating voltage x Max. operating current