| 摘要 |
An attenuation level may be set once per a command to set an average output power of output signals of a power amplifier, and outphased modulated signals may be attenuating according to the attenuation level prior to amplification of the signals by a power amplifier. An outphasing modulator may include at least a multiplier to multiply an amplitude modulation signal by a phase modulated carrier signal to generate a modulated signal. The outphasing modulator may also include a phase splitter to phase split the modulated signal to generate phase shifted modulated signals. The outphasing modulator may also include a sum-difference combiner to produce outphased modulated signals from the phase shifted modulated signals.
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