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Definition of "harmonic amplifier" |
a type of amplifier that utilizes various forms of harmonic and mixing actions. These amplifiers may pump up the fundamental by increasing the switching efficiency of the active device. Others may actually be used as frequency multipliers or frequency converters (mixers). All class F, G, and H amplifiers fit into this general group. Parameters such as device characteristics, quiescent bias point, RF load line, significant harmonic and/or mixing frequencies, and amplitude and waveform of the applied signal(s) should be included with the class definition, thus defining the major contributors to the physical actions taking place in one of these amplifiers. |
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