| 摘要 |
A radio frequency modulator is disclosed that includes a finite impulse response filter including a first modulator element having a first gain and configured to receive a first input signal and produce a first output signal, a second modulator element having a second gain and configured to receive a second input signal delayed with respect to the first input signal and produce a second output signal, a third modulator element having a third gain and configured to receive a third input signal delayed with respect to the second input signal and produce a third output signal, and a fourth modulator element having a fourth gain and configured to receive a fourth input signal delayed with respect to the third input signal and produce a fourth output signal. The first, second, third, and fourth gains are each different and are based on coefficients of the finite impulse response filter.
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