RF amplifier linearity enhancement with dynamically adjusted variable load
Abstract:
An apparatus comprises an amplifier having a predefined linear range and a shunt load. The shunt load may be connected to an output, an input, or between gain stages of the amplifier. An impedance of the shunt load dynamically varies in response to a level of a signal presented at a node formed by interconnection of the shunt load and the amplifier, extending linearity of the amplifier beyond the predefined range.
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