Modulator arrangement and method for signal modulation
AssigneeInfineon Technologies AG
InventorsNazim Ceylan, Jan-Erik Muller
Life of this patent
Estimating the term…
Abstract
A modulator arrangement includes a power amplifier which receives a carrier signal and has a current control input and a voltage supply input. The modulator arrangement further includes a supply voltage modulator having an output coupled to the voltage supply input and an input coupled to the data input and a bias current modulator with an output coupled to the current control input and an input coupled to the data input. A control unit is provided which has a power control output coupled to the supply voltage modulator and to the bias current modulator to control the supply voltage modulator and the bias current modulator depending on a power control signal.
Claims37
A modulator arrangement, comprising:
- a power amplifier comprising a signal input configured to receive a carrier signal, a current control input, a supply voltage input and a signal output;
- a supply voltage modulator comprising an output coupled to the supply voltage input of the power amplifier and an input coupled to a data input and configured to modulate a supply voltage at the output thereof as a function of a control signal received at a control input thereof;
- a bias current modulator comprising an output coupled to the current control input of the power amplifier and an input coupled to the data input, and configured to modulate a bias current at the output thereof as a function of a control signal received at a control input thereof;
- and
- a control unit comprising a power control input configured to receive power control data, and a power control output coupled to the supply voltage modulator and to the bias current modulator, and configured to control the supply voltage modulator and the bias current modulator based on one or more control signals derived from the power control data.
A modulator arrangement, comprising:
- a signal processing unit configured to receive input data and provide an amplitude component of the input data at a first output and a phase component of the input data at a second output;
- a phase modulator coupled to the second output and configured to generate a phase modulated carrier signal as a function of the phase component;
- a power amplifier configured to receive the carrier signal, and comprising a current control input, a supply voltage input, and a signal output;
- a supply voltage modulator configured to modulate a supply voltage and provide the modulated supply voltage to the supply voltage input of the power amplifier;
- a bias current modulator configured to modulate a bias current and provide the modulated bias current to the current control input of the power amplifier;
- and
- a control unit configured to receive power control data and selectively control the supply voltage modulator and the bias current modulator with a power control signal derived from the power control data.
A modulator arrangement, comprising:
- a power amplifier configured to perform an amplitude modulation of a carrier signal either as a function of a modulated supply voltage corresponding to receive amplitude data or as a function of a modulated bias current control signal corresponding to the amplitude data depending on a power control signal;
- and
- a control unit configured to derive the power control signal from received power data.
A method for signal modulation, comprising:
- providing input data and power data;
- deriving a power control signal from the power data;
- providing a supply voltage and a bias current control signal, wherein the supply voltage or the bias current control signal are selectively modulated as a function of the input data based on the power control signal;
- and
- amplifying a carrier signal as a function of the supply voltage and the bias current control signal, wherein the amplified carrier signal comprises an output signal.
A method for signal modulation, comprising:
- providing amplitude data and power data;
- deriving a power control signal from the power data;
- performing an amplitude modulation of a carrier signal as a function of a modulated supply voltage corresponding to the amplitude data or as a function of a modulated bias current corresponding to the amplitude data depending on the power control signal.
Dependencies are inferred from the claim text.