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  2. Cavity magnetron - Wikipedia

    en.wikipedia.org/wiki/Cavity_magnetron

    The cavity magnetron is a high-power vacuum tube used in early radar systems and subsequently in microwave ovens and in linear particle accelerators. A cavity magnetron generates microwaves using the interaction of a stream of electrons with a magnetic field, while moving past a series of cavity resonators, which are small, open cavities in a ...

  3. Microwave oven - Wikipedia

    en.wikipedia.org/wiki/Microwave_oven

    A microwave oven or simply microwave is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. [1] This induces polar molecules in the food to rotate and produce thermal energy (heat) in a process known as dielectric heating .

  4. Microwave cavity - Wikipedia

    en.wikipedia.org/wiki/Microwave_cavity

    Microwave resonant cavities can be represented and thought of as simple LC circuits, see Montgomery et al pages 207-239. [15] For a microwave cavity, the stored electric energy is equal to the stored magnetic energy at resonance as is the case for a resonant LC circuit .

  5. Heathkit - Wikipedia

    en.wikipedia.org/wiki/Heathkit

    Oscilloscope OL-1 from 1954, the company's first with a relatively small 3-inch CRT which allowed for a highly competitive price of US$ 29.50 (equivalent to $345 in 2024) for the DIY kit. [1] Heathkit is the brand name of kits and other electronic products produced and marketed by the Heath Company.

  6. Traveling-wave tube - Wikipedia

    en.wikipedia.org/wiki/Traveling-wave_tube

    The TWT is an elongated vacuum tube with an electron gun (a heated cathode that emits electrons) at one end.A voltage applied across the cathode and anode accelerates the electrons towards the far end of the tube, and an external magnetic field around the tube focuses the electrons into a beam.

  7. Epirus Leonidas - Wikipedia

    en.wikipedia.org/wiki/Epirus_Leonidas

    On 23 January 2023, Epirus was awarded a $66.1 million contract by the Rapid Capabilities and Critical Technologies Office (RCCTO) to deliver the Leonidas to the U.S. Army as part of the Indirect Fire Protection Capability-High-Power Microwave (IFPC-HPM) program after outperforming six other systems. Four prototypes were to be produced by 2024 ...

  8. Klystron - Wikipedia

    en.wikipedia.org/wiki/Klystron

    The simplest klystron tube is the two-cavity klystron. In this tube there are two microwave cavity resonators, the "catcher" and the "buncher". When used as an amplifier, the weak microwave signal to be amplified is applied to the buncher cavity through a coaxial cable or waveguide, and the amplified signal is extracted from the catcher cavity.

  9. Microwave imaging - Wikipedia

    en.wikipedia.org/wiki/Microwave_imaging

    The test probe transmits and receives microwaves. Changes of the dielectric properties at surfaces (e. g. shrinkage cavities, pores, foreign material inclusion, or cracks) within the interior of the device under test reflect the incident microwave and send a part of it back to the test probe, which acts as a transmitter and as a receiver. [7] [8]