An integrated Doherty amplifier structure comprising; a main amplifier stage; at least one peak amplifier stage; an output combination bar configured to receive and combine an output from both the main amplifier stage and the or each peak amplifier stage; a main connection configured to connect an output of the main amplifier stage to the combination bar, the main connection comprising, at least in part, a bond wire forming a first inductance; a peak connection configured to connect an output of the peak amplifier stage to the combination bar; wherein the main connection connects to the combination bar at a first point along the bar and the peak connection connects to the combination bar at a second point along the bar spaced from the first point and the main amplifier stage is located further from the output combination bar than the at least one peak amplifier stage.