Patent ID: 8659359

Claim:
A radio frequency (RF) power transistor circuit comprising: a first power transistor having a control electrode coupled to an input terminal for receiving an RF input signal, a first current electrode for providing an RF output signal at an output terminal, and a second current electrode coupled to a power supply voltage terminal; a second power transistor having a control electrode coupled to the input terminal, a first current electrode coupled to the output terminal, and a second current electrode coupled to the power supply voltage terminal; and a first decoupling circuit, comprising: a first inductive element, a first resistor, and a first capacitor coupled together in series between the control electrode of the first power transistor and the power supply voltage terminal and the control electrode of the second power transistor and the power supply voltage terminal, wherein the first decoupling circuit is for dampening a resonance at a frequency lower than an RF frequency, and the resonance is generated by an interaction between the first power transistor and the second power transistor.