2.4/5.7-GHz CMOS Dual-Band Low-IF Architecture Using Weaver–Hartley Image-Rejection Techniques

2.4/5.7-GHz Dual-Band Dual-Conversion Low-IF Downconverter Using 0.35 μm SiGe HBT Technology

“…Here, a 2.4/5.7-GHz dual-band dual-conversion low-IF downconverter suitable for WLAN 802.11 a/g applications is demonstrated. The highly merged dual-band architecture with the signal at 2.4/5.7 GHz while the image is 5.7/2.4 GHz is achieved by setting the LO 1 frequency at halfway between 2.4 GHz and 5.7 GHz [1].…”