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Methods and apparatus for substantially reducing third order intermodulation distortion and other nonlinear distortions
Methods and apparatus for substantially reducing third order intermodulation distortion and other nonlinear distortions
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机译:实质上减少三阶互调失真和其他非线性失真的方法和装置
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摘要
Methods and apparatus are provided for substantially reducing and/or canceling nonlinearities of any order in circuits, devices, and systems such as amplifiers and mixers. In particular, methods and apparatus are provided for substantially reducing and/or canceling third order nonlinearities in circuits, devices, and systems such as amplifiers and mixers. A first coupler is used to split an input signal into two equal-amplitude in-phase components, each component is processed by two nonlinear devices with different nonlinearities, and a final combiner, such as a 180-degree hybrid, recombines the processed signals 180 degrees out of phase and substantially reduces and/or cancels the undesired nonlinear distortion components arising due to nonlinearities in the nonlinear devices.
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