Fig. 1. Block diagram of an Envelope Tracking Power Amplifier[7].
Fig. 2. Envelope shaping functions[10].
Fig. 3. Probability density function of 64-QAM signal (average power is set to 0 dB).
Fig. 4. Employed 64-QAM signal in frequency domain.
Fig. 5. Envelope Tracking figure of merit.
참고문헌
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