Methods related to amplification of radio-frequency signals
AssigneeSkyworks Solutions, Inc.
InventorsJunhyung Lee, Johannes Jacobus Emile Maria Hageraats, Joshua Haeseok Cho
Life of this patent
Estimating the term…
Abstract
Methods related to amplification of radio-frequency signals. In some embodiments, a method for amplifying a radio-frequency signal can include configuring a gain stage to be in a selected one of a plurality of gain settings, with at least some of the gain settings resulting in different phases for the radio-frequency signal. The method can further include adjusting the phase of the radio-frequency signal for the selected gain setting, such that the adjusted phase is part of desired phases adjusted from the different phases.
Claims14
A method for amplifying a radio-frequency signal, the method comprising:
- providing a signal to a common input;
- routing the signal from the common input to each of one or more of a plurality of switchable amplification branches of a variable-gain stage to be in a respective one or more of a plurality of gain settings, such that the signal routed through the switchable amplification branch is provided with the respective gain and a respective phase shift compensation;
- routing the amplified signal from each of the one or more switchable amplification branches to a common output to provide a combined signal;
- and
- further amplifying the combined signal by an output stage.
A method for fabricating a semiconductor die, the method comprising:
- forming or providing a substrate;
- and
- forming a radio-frequency circuit on the substrate, such that the radio-frequency circuit includes an amplifier having a variable-gain stage that includes a common input, a common output, and a plurality of switchable amplification branches implemented to be electrically parallel between the common input and the common output, each switchable amplification branch including an amplifying transistor in electrical series with a respective switch to be capable of being activated to provide respective gain level and phase shift, the plurality of switchable amplification branches configured such that the phase shift provided by one or more activated amplification branches compensates for a phase shift associated with the amplifier operating with the respective gain level of the variable-gain stage, the amplifier further including a common output stage coupled to the common output of the variable-gain stage.
A method for operating a wireless device, the method comprising:
- receiving a signal through an antenna;
- and
- amplifying the signal, the amplifying including routing the signal from the antenna through a common input to each of one or more of a plurality of switchable amplification branches of a variable-gain stage to be in a respective one or more of a plurality of gain settings, such that the signal routed through the switchable amplification branch is provided with the respective gain and a phase shift compensation, the amplifying further including routing the amplified signal from each of the one or more switchable amplification branches to a common output to provide a combined signal, and further amplifying the combined signal by an output stage.
Dependencies are inferred from the claim text.