Design of a 60-GHz receiver front-end with broadband matching techniques in 65-nm CMOS

A 60-GHz CMOS receiver front-end with wide IF bandwidth is presented. The receiver front-end consists of an LNA, a down-conversion mixer and an IF buffer. In order to support both channel-bonding and single-channel operations, two types of broadband inter-stage matching networks are analyzed from a new perspective and adopted in the design. Fabricated in a 65-nm CMOS process, the receiver front-end achieves wide IF bandwidth, a 39-dB gain, and a 5-dB noise figure in the high-gain mode. In Channel-2 measurement, the receiver front-end achieves a maximum 3-dB IF bandwidth of 6.83 GHz, which covers three channels and meets the channel-bonding bandwidth requirement.