Analysis and Design of Submilliwatt Interference-Tolerant Receivers Leveraging N -Path Filter-Based Translational Positive Feedback

A low-power 2.2–2.4-GHz receiver front end for Internet-of-Things (IoT) applications is presented. The front end consists of a capacitively cross-coupled common-gate low-noise amplifier (CC-CGLNA), with translational positive feedback from baseband to RF through a four-phase switching mixer, providing RF filtering and matching, in conjunction with a 1:4 transformer. A detailed analysis of the arch...