Explain the working of negative resistance parametric amplifier
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parametric amplifier. (pa-ră-met -rik) A type of negative-resistance amplifier that employs a nonlinear circuit element, such as a varactor diode, to act as a time-varying capacitance. These amplifiers have low noise figures at high frequencies and are useful in radio telescopes in the range 1–30 gigahertz.
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parametric amplifier - A type of negative-resistance amplifier that employs a nonlinear circuit element, such as a varactor diode, to act as a time-varying capacitance. These amplifiers have low noise figures at high frequencies and are useful in radio telescopes in the range 1–30 gigahertz.
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