Transmitter with reduced power consumption and increased linearity and dynamic range
AssigneeST-Ericsson SA
InventorJan S. Vromans
Life of this patent
Estimating the term…
Abstract
This application relates to an apparatus comprising a signal generator configured to generate a signal. The apparatus encompasses a predistortion unit configured to pre-distort the generated signal. The apparatus includes a pulse width modulating unit configured to modulate the pre-distorted signal into at least two signals. The apparatus comprises at least two amplifying units each configured to amplify one of the two modulated signals.
Claims23
An apparatus comprising:
- a signal generator configured to generate a signal;
- a predistortion unit configured to pre-distort the generated signal;
- a pulse width modulating unit configured to modulate the pre-distorted signal onto two signals, each being opposite phase shifted;
- at least two amplifying units each configured to amplify one of the two modulated signals;
- a combining unit configured to combine at least two amplified signals;
- and
- a feedback loop path configured to correct the generated signal depending on a combined signal generated by the combining unit.
A method comprising:
- generating a signal;
- pre-distorting the generated signal;
- pulse width modulating the pre-distorted signal onto at least into two signals, each being opposite phase shifted;
- amplifying at least the two modulated signals;
- combining at least two amplified signals;
- and
- correcting the generated signal depending on the combined signal.
A non-transitory computer readable medium having a computer program stored thereon, the computer program comprising instructions operable to cause a processor to perform the steps of:
- generating a signal;
- pre-distorting the generated signal;
- pulse width modulating the pre-distorted signal onto at least into two signals, each being opposite phase shifted;
- amplifying at least the two modulated signals;
- combining at least two amplified signals;
- and
- correcting the generated signal depending on the combined signal.
A transmitter comprising an apparatus comprising:
- a signal generator configured to generate a signal;
- a predistortion unit configured to pre-distort the generated signal;
- a pulse width modulating unit configured to modulate the pre-distorted signal onto at least two signals, each being opposite phase shifted;
- at least two amplifying units each configured to amplify one of the two modulated signals;
- a combining unit configured to combine at least two amplified signals;
- and
- a feedback loop path configured to correct the generated signal depending on a combined signal generated by the combining unit.
Dependencies are inferred from the claim text.