6.2.Passive Downconversion Mixers Gain Figure 6.18.(a)Input and output waveforms of a return-to-zero mixer,(b)corresponding spectra. a →MM -RF 0+@RF -@L00+0L0① -①F0+@1F① b creates the IF signal with a gain of 1/n(-10 dB)
6.2. Passive Downconversion Mixers Gain creates the IF signal with a gain of 1/π (≈ −10 dB)
Single-balanced topology. Figure 6.19.Waveforms for passive mixer gain computation. Vout1-Vout2 The conversion gain is therefore equal to 2/n(-4 dB)
Single-balanced topology. The conversion gain is therefore equal to 2/π (≈ −4 dB)
Double-balanced passive mixer R Vout1-Vout2 a） (b) a voltage conversion gain of 2/n7,equal to that of the single-balanced counterpart
Double-balanced passive mixer a voltage conversion gain of 2/π, equal to that of the single-balanced counterpart
Sampling Mixer Figure 6.21.(a)Sampling mixer,(b)output waveform decomposition. LO x(t) x(t)o oy(t) 9 y(t) (a) 3) (b)
Sampling Mixer