.~> Semiconductor type (e.g., with semiconductor diode)
DEFINITION
Classification: 330/4.5
(under the class definition) Subject matter including (1) a nonlinear reactance, (2) means for applying an input signal frequency to said nonlinear reactance, (3) means for effectively applying a pumping frequency higher than said signal frequency to said nonlinear reactance, and (4) means for abstracting the amplified output therefrom, whereby sum and difference frequencies are produced, one or both of which (but usually the difference frequency [called the idler frequency] reacting with the pumping frequency to produce energy at the signal frequency which is combined in phase with the input signal.
(1) Note. While the pumping frequency is higher than the signal frequency, the pumping frequency may be derived from a lower frequency source, for example, as a harmonic of the lower frequency source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
7, for an amplifier with a capacitive amplifying device.
8, for an amplifier with a saturable reactor type amplifying device.
53+, for an amplifier with a distributed parameter coupling means.
