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1. 发明授权

US06897723B2 Feed-forward amplifier loop control utilizing if signal processing 有权
标题翻译：前馈放大器环路控制利用信号处理
公开(公告)号：US06897723B2
公开(公告)日：2005-05-24
申请号：US10362755
申请日：2001-12-21
申请人： Charles Gentzler
发明人： Charles Gentzler
IPC分类号： H03F1/32 , H04B1/04 , H03F1/00 , H03F1/26 , H03F3/66
CPC分类号： H03F1/3235 , H03F1/3223 , H03F3/24 , H04B2001/0441
摘要： An amplifier arrangement including a main amplifier to which feed-forward cancellation is applied, where the amplifier arrangement comprises an input for receiving signals to be amplified, an output for providing an amplified input signal, a pilot signal modulation circuit to generate a CW frequency shifted pilot signal, a mixer down for converting the pilot signal to an IF signal, and a sampling circuit for digitally sampling the IF signal. The amplifier arrangement includes a signal cancellation loop and a distortion cancellation loop each acting as an independent control function for minimizing pilot signal. The signal cancellation loop utilizes a Cartesian loop method for controlling the signal cancellation loop for sensing both phase and amplitude information simultaneously. The Cartesian loop uses a high frequency active mixer, which is a dual cross coupled differential pairs of devices capable of operating with input signals from near DC to 2.4 GHz, for control of the signal cancellation loop.
摘要翻译：一种放大器装置，包括其中施加了前馈消除的主放大器，其中放大器装置包括用于接收要放大的信号的输入端，用于提供放大的输入信号的输出端，用于产生CW频移的导频信号调制电路导频信号，用于将导频信号转换为IF信号的混频器，以及用于对IF信号进行数字采样的采样电路。放大器装置包括一个信号消除环路和一个失真消除环路，每个都用作一个独立的控制功能，用于最小化导频信号。信号消除环路采用笛卡尔圆环法来控制信号消除环路，以同时检测相位和幅度信息。笛卡尔回路采用高频有源混频器，它是一种双交叉耦合差分对器件，能够对从近DC到2.4 GHz的输入信号进行操作，以控制信号消除环路。

2. 发明授权

US06396344B1 Amplifier linearization by learned linear behavior 失效
标题翻译：通过学习的线性行为放大器线性化
公开(公告)号：US06396344B1
公开(公告)日：2002-05-28
申请号：US08785752
申请日：1997-01-18
申请人： Charles Gentzler , Zvi Regev
发明人： Charles Gentzler , Zvi Regev
IPC分类号： H03F126
CPC分类号： H03F1/3294 , H03F1/3247 , H03F2200/102
摘要： This invention relates to the Linearization of multitone or multiple signal amplifiers or like devices. The telecommunications industry is currently employing amplifiers, transmitters or other active devices that are not only amplifying complex digital and analog modulation formats, but are transmitting or amplifying multiple complex signals simultaneously. In order to meet the transmission requirements, amplifiers or transmitters must exhibit extreme phase and amplitude linearity. Deviations from linearity are distortions which lead to intermodulation of the signal components; those intermodulation products appear variously through out the spectrum and cause interference between signals, which in turn degrades the amplified signals. Today the amplification of these signals requires the use of feedforward technology to achieve the performance required to meet government spectrum modulation mask requirements. This invention provides an important advance in the art of extreme phase and amplitude linearity.
摘要翻译：本发明涉及多声道或多信号放大器或类似装置的线性化。电信业目前正在使用放大器，发射机或其他有源器件，它们不仅可以放大复杂的数字和模拟调制格式，而且可以同时传输或放大多个复杂信号。为了满足传输要求，放大器或发射机必须具有极端的相位和幅度线性度。与线性的偏差是导致信号分量互调的失真; 这些互调产物出现在频谱之外，并引起信号之间的干扰，这又会降低放大的信号。今天，这些信号的放大需要使用前馈技术来实现满足政府频谱调制掩模要求所需的性能。本发明提供了极端相位和振幅线性领域的重要进步。

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