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  2. YIG sphere - Wikipedia

    en.wikipedia.org/wiki/YIG_sphere

    Simplified schematics of YIG-resonator coupling to microstrip network YIG filter partially disassembled. The electromagnet is on the left. The module with YIG sphere and input and output coils is on the right. Yttrium iron garnet spheres (YIG spheres) serve as magnetically tunable filters and resonators for microwave frequencies.

  3. Circulator - Wikipedia

    en.wikipedia.org/wiki/Circulator

    ANSI and IEC standard schematic symbol for a circulator (with each waveguide or transmission line port drawn as a single line, rather than as a pair of conductors). In electrical engineering, a circulator is a passive, non-reciprocal three- or four-port device that only allows a microwave or radio-frequency (RF) signal to exit through the port directly after the one it entered.

  4. Gyrator - Wikipedia

    en.wikipedia.org/wiki/Gyrator

    A gyrator is a passive, linear, lossless, two-port electrical network element proposed in 1948 by Bernard D. H. Tellegen as a hypothetical fifth linear element after the resistor, capacitor, inductor and ideal transformer. [1] Unlike the four conventional elements, the gyrator is non-reciprocal.

  5. 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 ...

  6. 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 .

  7. Rectifier - Wikipedia

    en.wikipedia.org/wiki/Rectifier

    The above diagram shows the voltage waveforms of the reservoir performance when supplied from a voltage source with near zero impedance, such as a mains supply. Both voltages start from zero at time t=0 at the far left of the image, then the capacitor voltage follows the rectified AC voltage as it increases, the capacitor is charged and current ...