Two Improved Cancellation Techniques for Direct-Conversion Receivers

Figure 11

(a), (b), and (c) show the comparison results of AC coupling (red color) and improved DC coupling amplifier (blue color) in 16 kbps, 160 kbps, and 320 kbps data rate.

(a) 16 kbps data rate

(b) 160 kbps data rate

(c) 320 kbps data rate