To conclude-3 ●●● ●●●● ●●●●● OMixer Characteristics ●●●0 ●●●●0 ●●●● Mixer fRr十fr ●●●● fRF fF=fRF±f九o ● ● RF oscillator 无o RF-Lo Lo RF LO+RF Local oscillator 2Lo-RF=IM (image frequency) 1.Frequency Conversion 4.Noise Figure 2.Image Frequency 5.Isolation 3.Conversion Loss 6.… ,P哑 Icz10I PE Resistive:Fsw≈L. FssB =2FDSB 3To conclude-3 Mixer Characteristics 1.Frequency Conversion 2. Image Frequency 3.Conversion Loss 6. …… 3 4. Noise Figure 5. Isolation 10lg RF C IF P L P 