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PA
X
OSC
~
90º
X
FFT-1
N=2m
X
X
LNA
LPF
≈
DAC
DAC
ADC
90º
LPF
≈
ADC
Insensitive
to multipath
FFT
N=2m
LPF
≈
LPF
≈
Carrier
recovery
Very
accurate!
WiFi
DVB-T
LTE