Rf amplifier

Abstract

A radio frequency signal amplifier includes an input differential transistor pair and an output differential transistor pair. First and second capacitive elements are arranged, respectively, between control terminals and conduction terminals of transistors of the input differential transistor pair. Third and fourth capacitive elements are arranged, respectively, between control terminals and conduction terminals of transistors of the output differential transistor pair. These capacitive elements may be formed by transistors or capacitors. An amplifier input is coupled through a transformer to the control terminals of the transistors of the input differential transistor pair. An amplifier output is coupled to through magnetically coupled coils to further conduction terminals of the transistors of the output differential transistor pair.

Dependencies are inferred from the claim text.