SYSTEMS, METHODS, AND APPARATUS FOR FREQUENCY CONVERSION

摘要

PROBLEM TO BE SOLVED: To perform frequency conversion such that a frequency conversion gain is maximized and/or the level of noise in a converted signal is minimized.

SOLUTION: A method includes using a quadrature set of local oscillator signals having duty cycles of substantially less than 50 percent to perform a mixing operation on a radio-frequency current signal. Other embodiments include using a quadrature set of local oscillator signals having duty cycles of less than 25 percent.

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