A Low-Current Digitally Predistorted Direct-Conversion Transmitter With 25% Duty-Cycle Passive Mixer

Manel Collados,Hongli Zhang,B M Tenbroek,Hsianghui Chang

IEEE Transactions on Microwave Theory and Techniques（2014）

引用 17|浏览6

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摘要

A low-current direct-conversion transmitter (TX) is obtained by combining an efficient single-balanced 25% duty-cycle passive mixer with a low-bias single-ended driver. The nonlinearity of such architecture is aggravated by strong harmonics at the mixer output folding down to the fundamental frequency due to driver nonlinearity. To address this, a baseband mathematical model of the passive mixer p...

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关键词

Mixers,Polynomials,Harmonic analysis,Modulation,Vectors,Mathematical model,Nonlinear distortion

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