Ampleon Netherlands B.v.

Samba Holdco Netherlands B.v.

Xavier Moronval

Jean-Jacques Bouny

Gerard Jean-Louis Bouisse

Gerard Bouisse

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.

Ultra wideband doherty amplifier

The invention relates to a Doherty amplifier for amplifying an input signal at an operating frequency, comprising: a main amplifier; a first peak amplifier; a second peak amplifier, each of the amplifiers comprising an input for receiving the input signal and an output for providing an amplified signal, a plurality of peak amplifiers, each of the amplifiers comprising an input for receiving the input signal and an output for providing an amplified signal; a first input phase shifter; a second input phase shifter; a first capacitor coupled between the source and drain of the first peak amplifier; a first output phase shifter and a second output phase shifter.

Doherty amplifier

Radio Frequency (RF) amplifier circuits are disclosed which may exhibit improved video/instantaneous bandwidth performance compared to conventional circuits. For example, disclosed RF amplifier circuits employ various concepts for reducing an overall circuit inductance or enabling an increase in capacitance for a given circuit size.

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Colomiers, France

Xavier Moronval