hmsheng
Full Member level 4
WLAN mixer noise figure
By simulation we can get a noise figure curve of the mixer. The noise figure is different at different offset frequency. The closer to DC the higher noise figure because of the 1/f noise. WLAN is a wideband system with bandwidth of 22MHz. My questions is if the design specification needs RX mixer noise figure to be 14dB, then what offset frequency should it be?
By simulation we can get a noise figure curve of the mixer. The noise figure is different at different offset frequency. The closer to DC the higher noise figure because of the 1/f noise. WLAN is a wideband system with bandwidth of 22MHz. My questions is if the design specification needs RX mixer noise figure to be 14dB, then what offset frequency should it be?