magnetron

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A demonstration showing how microwaves heat food, based on technology developed from Raytheon's wartime magnetron research.

Diagram showing the main components of a magnetron, including a cross-section with magnets, cooling fins, output antenna, ceramic insulator, and a detailed view of the anode, cathode, electron paths, cavities, and RF fields.

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Videos

A demonstration showing how microwaves heat food, based on technology developed from Raytheon's wartime magnetron research.

How microwaves cook food

Discover how microwave technology, first refined by Raytheon for radar, led to the...

Video: © American Chemical Society (A Britannica Publishing Partner)

Images

Diagram showing the main components of a magnetron, including a cross-section with magnets, cooling fins, output antenna, ceramic insulator, and a detailed view of the anode, cathode, electron paths, cavities, and RF fields.

Typical elements of a magnetron.

Encyclopædia Britannica, Inc.

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