Invention Grant
- Patent Title: Am to AM correction system for polar modulator
- Patent Title (中): Am到AM校正系统的极性调制器
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Application No.: US10147579Application Date: 2002-05-16
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Publication No.: US07801244B2Publication Date: 2010-09-21
- Inventor: Alexander Wayne Hietala
- Applicant: Alexander Wayne Hietala
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices, Inc.
- Current Assignee: RF Micro Devices, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H04L25/49
- IPC: H04L25/49
Abstract:
A transmitter includes a polar converter to generate an amplitude signal and a phase signal, which in turn is converted to a frequency signal. The amplitude signal is directed to a compensator and a compensation signal is generated. The compensation signal is combined with the amplitude signal and the combined signal is presented to the power amplifier. The AM to AM conversion is reduced such that the output signal of the power amplifier contains substantially no spurious components.
Public/Granted literature
- US20030215026A1 AM to AM correction system for polar modulator Public/Granted day:2003-11-20
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