Patent ID: 7800448

Claim:
An integrated Doherty amplifier structure comprising: an input bond pad (IBP) on an integrated circuit, an output bond pad (OBP) on the integrated circuit, a first transistor on the integrated circuit, the first transistor forming a peak amplifier stage of the Doherty amplifier and having a control input for receiving a first input signal being an input signal of the Doherty amplifier, and having an output for supplying an amplified first input signal at an output of the Doherty amplifier, a second transistor on the integrated circuit, the second transistor forming a main amplifier stage of the Doherty amplifier and having a control input or receiving a second input signal and having an output for supplying an amplified second input signal, wherein a phase of the first input signal is lagging 90 degrees behind a phase of the second input signal, a first bond wire on the integrated circuit, the first bond wire forming a first inductance and predominantly extending in a first direction, and being arranged between the input bond pad and the control input of the first transistor, a second bond wire on the integrated circuit, the second bond wire forming a second inductance and predominantly extending in the first direction, and being arranged between the output bond pad and the output of the first transistor, and a third bond wire on the integrated circuit, the third bond wire forming a third inductance, predominantly extending in a second direction substantially perpendicular to the first direction, and being arranged between the output of the first transistor and the output of the second transistor.