Invention Grant
- Patent Title: Distributed feed-forward envelope tracking system
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Application No.: US17031944Application Date: 2020-09-25
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Publication No.: US11463048B2Publication Date: 2022-10-04
- Inventor: Stephan Henzler , Andreas Langer , Bernhard Raaf
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: 2SPL Patent Attorneys PartG mbB
- Agent Yong Beom Hwang
- Main IPC: H03F1/30
- IPC: H03F1/30 ; H03F1/02 ; H02M3/07 ; H03F3/189 ; H03F3/19 ; H03F3/21 ; H03F3/24 ; H03F3/68 ; H03M1/66 ; H02M3/158

Abstract:
Systems, methods, and circuitries are provided for generating a power amplifier supply voltage based on a target envelope signal for a radio frequency (RF) transmit signal. An envelope tracking system includes a first selector circuitry and predistortion circuitry. The first selector circuitry is disposed in a selector module and is configured to input a plurality of voltages conducted on a first plurality of power lanes, wherein the first plurality of power lanes is part of a power distribution network; select a voltage from the plurality of voltages based on the target envelope signal; and provide the selected voltage to a supply lane connected to an input of the power amplifier that amplifies the RF transmit signal. The predistortion circuitry is configured to modify the RF transmit signal based on a selected power lane of the first plurality of power lanes that conducts the selected voltage.
Public/Granted literature
- US20210075372A1 DISTRIBUTED FEED-FORWARD ENVELOPE TRACKING SYSTEM Public/Granted day:2021-03-11
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