Blocker-Tolerant Mixer-First Receivers for 5G-Advanced/6G FR1/FR3 Communications

With the rapid evolution of next-generation wireless communication (eg 5G-Advanced, 6G), spectrum resources are increasingly crowded. Receivers unavoidably operate in electromagnetic environments congested with strong interference and blockers. Specifically, out-of-band (OOB) blockers can degrade the receiver performance by reducing the signal-to-noise ratio and introducing non-linear distortion. Against this backdrop, mixer-first receivers have attracted widespread attention for their outstanding frequency selectivity and flexible wideband reconfigurability, making them a compelling candidate for blocker-tolerant architectures. In this talk, blocker-tolerant mixer-first receivers for next-generation wireless communications are discussed. For the FR1 regime (sub-6GHz), a mixer-first blocker-tolerant receiver with a bias-tunable mixer and effective switch resistance compensation technique is presented. For the FR3 regime (∼6–24GHz), two reflectionless blocker-tolerant receivers are presented, covering frequency ranges of 6–26GHz and 10–30GHz.