RFMagnetron vs. Crossed Field Amplifier: Key Differences Explained
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This article highlights the differences between a magnetron and a crossed field amplifier (CFA).
| Feature | Magnetron | Crossed Field Amplifier (CFA) |
|---|---|---|
| Application | Used in communication equipment and radar transmitters as a pulsed or CW oscillator to generate high power output. | Used in intermediate or final stages of high-power radar systems. |
| Functionality | Oscillator with a single RF output connection. | Microwave power amplifier with both RF input and output connections. |
| Interaction Type | Continuous interaction between the RF field and the electron beam occurs over the entire length. | The RF field remains stationary. |
| Slow Wave Structure | Does not have a slow-wave structure. | Has a slow-wave structure similar to a Traveling Wave Tube (TWT). Forward wave CFAs use a helix, while backward wave CFAs use a bar line. |
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