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US 12,316,279 B2Granted
Amplifier circuit with an envelope enhancement
AssigneeIntel Corporation
InventorsChuanzhao Yu, LiChung Chang
Life of this patent
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Abstract
Amplifier circuits, radio communication circuits, radio communication devices, and methods provided in this disclosure provide an amplifier circuit. The amplifier circuit may include an amplifier configured to amplify an input signal to provide an output signal. The amplifier circuit may further include an amplifier stack including a first transistor coupled to the amplifier. The amplifier stack may be configured to receive the output signal to amplify the output signal. The amplifier stack may be configured to receive an input control signal to control the first transistor based on an envelope of the input signal.
Claims21
An amplifier circuit comprising:
- an amplifier configured to amplify an input signal to provide an output signal;
- an amplifier stack comprising a first transistor coupled to the amplifier, the amplifier stack is configured to:
- receive the output signal to amplify the output signal;
- receive an input control signal to control the first transistor based on an envelope of the input signal;
- an amplifier circuit output configured to provide an amplifier output signal based on the input signal received by the amplifier;
- and
- a processor comprising an envelope detector to detect an envelope signal of a received signal, wherein the processor is configured to:
- receive the amplifier output signal;
- and
- adjust at least one of an amplitude or a phase of the envelope signal and provide the input control signal based on the adjusted envelope signal.
7 more elements
A mobile radio communication circuit comprising:
- an up-converter configured to up-convert a baseband communication signal to a radio frequency (RF) communication signal;
- and
- an amplifier circuit comprising:
- an amplifier configured to amplify an input signal comprising the radio frequency (RF) communication signal to provide an output signal;
- an amplifier stack comprising a first transistor coupled to the amplifier, the amplifier stack is configured to:
- receive the output signal to amplify the output signal;
- receive an input control signal to control the first transistor based on an envelope of the input signal;
- an amplifier circuit output configured to provide an amplifier output signal based on the input signal received by the amplifier;
- and
- a processor comprising an envelope detector to detect an envelope signal of a received signal, wherein the processor is configured to:
- receive the amplifier output signal;
- and
- adjust at least one of an amplitude or a phase of the envelope signal and provide the input control signal based on the adjusted envelope signal.
10 more elements
A mobile radio communication device comprising:
- a mobile radio communication circuit comprising
- an up-converter configured to up-convert a baseband communication signal to a radio frequency (RF) communication signal;
- and
- an amplifier circuit comprising:
- an amplifier configured to amplify an input signal comprising the radio frequency (RF) communication signal to provide an output signal;
- an amplifier stack comprising a first transistor coupled to the amplifier, the amplifier stack is configured to:
- receive the output signal to amplify the output signal;
- receive an input control signal to control the first transistor based on an envelope of the input signal;
- an amplifier circuit output configured to provide an amplifier output signal based on the input signal received by the amplifier;
- an antenna configured to transmit the amplifier output signal;
- an amplifier circuit output configured to provide an amplifier output signal based on the input signal received by the amplifier;
- and
- a processor comprising an envelope detector to detect an envelope signal of a received signal, wherein the processor is configured to:
- receive the amplifier output signal;
- and
- adjust at least one of an amplitude or a phase of the envelope signal and provide the input control signal based on the adjusted envelope signal.
13 more elements
A method comprising:
- amplifying an input signal to provide an output signal by an amplifier;
- receiving the output signal by an amplifier stack comprising a first transistor coupled to the amplifier;
- controlling the first transistor based on an envelope of the input signal;
- amplifying the output signal using the first transistor providing an amplifier output signal based on the input signal received by the amplifier;
- detecting an envelope signal of a received signal;
- receiving, by a processor, the amplifier output signal;
- and
- adjusting at least one of an amplitude or a phase of the envelope signal and providing the input control signal based on the adjusted envelope signal.
5 more elements
Dependencies are inferred from the claim text.