公开(公告)号：US20140141738A1

公开(公告)日：2014-05-22

申请号：US13860101

申请日：2013-04-10

Applicant: RF MICRO DEVICES, INC.

Inventor： Stephen T. Janesch

IPC: H04B1/10

CPC classification number: H04B1/10 ,  H03F3/45183 ,  H04B1/18

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.

Abstract translation: 公开了射频（RF）自整定放大装置和用于RF输入信号的放大方法。 在一个实施例中，RF自调谐放大装置具有第一RF放大器，参考RF放大器和调谐电路。 第一RF放大器包括用于从RF输入信号产生放大的RF输出信号的第一RF放大电路，以及可调谐并联谐振器，以便移位放大的RF输出信号的RF输出信号相位。 参考RF放大器包括从RF输入信号和阻性负载产生参考RF信号的第二RF放大电路，使得参考RF信号具有参考RF信号相位。 调谐电路被配置为调谐可调谐并联谐振器以减小RF输出信号相位和参考RF信号相位之间的相位差。