10-35GHz Passive Mixer-First Receiver Achieving +14dBm in-band IIP3 for Digital Beam-forming Arrays

A 10-35GHz mixer-first receiver is proposed for use in digital beam-forming arrays. Techniques are proposed to enhance the linearity of such receivers, both at baseband and the RF mixer switches. An integrated circuit prototype is fabricated in 28nm bulk CMOS as proof of concept. The receiver achieves an in-band IIP3 of +14dBm, a gain of 15dB and a noise figure of 12.5dB.