Crossed Field Amplifier and Formula

Crossed Field Amplifiers are high-power microwave devices that operate using perpendicular electric and magnetic fields. They are commonly used in radar and industrial microwave systems. This page provides Crossed Field Amplifier (CFA) calculator and its formula used to calculate efficiency and power gain.

EXAMPLE:

INPUTS:

• Operating Frequency = 3 GHz
• Beam Voltage (DC), Vb = 15,000 Volts
• Beam Current, Ib = 80 A
• RF Output Power, Pout = 4 MWatts
• RF Input Power, Pin = 400 Watts

OUTPUTS:

• Efficiency = 3.33
• Power Gain = 40 dB

Crossed Field Amplifier (CFA) Formula

Summary: The Crossed Field Amplifier (CFA) efficiency and power gain calculator provides a practical way to analyze high power microwave amplification based on electron motion in crossed electric and magnetic fields

References for further study

1. Fields and Waves in Communication Electronics By Ramo, Whinnery, and Van Duzer
2. Microwave Devices and Circuits By S. Y. Liao
3. Microwave Tubes By Gilmour, A. S.