Ampleon Netherlands B.v.

Gerard Bouisse

Jean-Jacques Bouny

Xavier Moronval

Rajeev Busgeeth

A die is described comprising at least one 3-way Doherty amplifier comprising a main stage, a first peak stage and a second peak stage. An input is connected to an input network which is connected to the main stage, first peak stage and second peak stage. The input network includes a first impedance connected to an input of the first peak stage and providing a &#x2212;90&#xb0; phase shift and a second impedance connected to an input of the second peak stage and providing a 90&#xb0; phase shift. An output is connected to an output network which is connected to the main stage, first peak stage and second peak stage. The output network includes a third impedance connected to the output of the first peak stage and providing a 180&#xb0; phase shift and a fourth impedance connected to the output of the main stage and providing a 90&#xb0; phase shift.

Integrated 3-way Doherty amplifier

A Doherty amplifier for amplifying an input signal to an output signal, the Doherty amplifier comprising: a main amplifier for receiving a first signal and for amplifying the first signal to generate a first amplified signal; a first peak amplifier for receiving a second signal and for generating a second amplified signal, the first peak amplifier only operating when the second signal has reached a first threshold power, the first and second signal split from the input signal; and output circuitry to combine the first and second amplified signals to generate an output signal having an operating bandwidth, the output circuitry comprising inductors arranged in the format of a branch line coupler, the inductors coupled to the output parasitic capacitances of the main and peak amplifier.

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Nijmegen, Netherlands

Gerard Bouisse