| 摘要 |
A method and device are described for generating two output signals (I; Q) each substantially identical to a square-wave input signal (A) from a local oscillator (2), wherein the first output signal (I) may have a certain time shift with respect to the input signal (A), and wherein the second output signal (Q) is shifted over T1/4 [mod T1] with respect to the first output signal (I), T1 being the period of the input signal (A). To generate the first output signal (I), Fourier components (S1(omega1), S3(omega3), S5(omega5), S7(omega7), S9(omega9), S11(omega11) etc) of the input signal are combined. To generate the second output signal (Q), Fourier components (S1(omega1), S5(omega5), S9(omega9) etc) of the input signal are phase shifted over +90° while Fourier components (S3(omega3), S7(omega7), S11(omega11) etc) of the input signal are phase shifted over -90°, and the thus shifted Fourier components of the input signal are combined.
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