Invention Grant
- Patent Title: Closed-loop power control in conjunction with adaptive power amplifier linearization
- Patent Title (中): 结合自适应功率放大器线性化的闭环功率控制
-
Application No.: US13297420Application Date: 2011-11-16
-
Publication No.: US08571497B1Publication Date: 2013-10-29
- Inventor: Li Lin , Arnab Kumar Mitra , Daxiao Yu , Harish Ramamurthy , Sergey Timofeev , Lance Nagamine , Brian Bosso
- Applicant: Li Lin , Arnab Kumar Mitra , Daxiao Yu , Harish Ramamurthy , Sergey Timofeev , Lance Nagamine , Brian Bosso
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H01Q11/12
- IPC: H01Q11/12 ; H04B1/04

Abstract:
A radio frequency transmitting system includes a programmable amplifier, a power amplifier, a power detector, and a calibration module. The programmable amplifier is configured to amplify an input signal to generate an amplified signal. The power amplifier is configured to output a transmit signal in response to the amplified signal. The transmit signal has a transmit power. The power detector is configured to generate a power measurement in response to the transmit power. The calibration module is configured to implement a plurality of feedback loops to adjust a gain of the programmable amplifier in response to a difference between the power measurement and a desired transmit power. The calibration module is configured to select one of the plurality of feedback loops in response to the desired transmit power.
Information query