Invention Application
- Patent Title: SELF-TUNING AMPLIFICATION DEVICE
- Patent Title (中): 自调谐放大器件
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Application No.: US13860101Application Date: 2013-04-10
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Publication No.: US20140141738A1Publication Date: 2014-05-22
- Inventor: Stephen T. Janesch
- Applicant: RF MICRO DEVICES, INC.
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices, Inc.
- Current Assignee: RF Micro Devices, Inc.
- Current Assignee Address: US NC Greensboro
- Main IPC: H04B1/10
- IPC: H04B1/10

Abstract:
Radio frequency (RF) self-tuning amplification devices and methods of amplification for an RF input signal are disclosed. In one embodiment, the RF self-tuning amplification device has a first RF amplifier, a reference RF amplifier, and a tuning circuit. The first RF amplifier includes a first RF amplification circuit to generate an amplified RF output signal from the RF input signal, and a tunable parallel resonator tunable so as to shift an RF output signal phase of the amplified RF output signal. The reference RF amplifier includes a second RF amplification circuit that generates a reference RF signal from the RF input signal, and a resistive load, so that the reference RF signal has a reference RF signal phase. The tuning circuit is configured to tune the tunable parallel resonator to reduce a phase difference between the RF output signal phase and the reference RF signal phase.
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