19.2 An Interferer-Tolerant Harmonic-Resilient Receiver with >+10dBm 3rd-Harmonic Blocker P1dB for 5G NR Applications

The sub-6GHz spectrum is heavily utilized by
$5\mathsf{G}$
New Radio (NR), as well as traditional cellular and
$\mathsf{WiFi}$
technologies. A major challenge in designing SAW-less wideband radio receivers (especially targeting the sub-2GHz range) is rejecting interferers at or around the operation frequency and its harmonics that are within the congested sub-6GHz spectrum. Given the stringent linearity requirements of
$5\mathsf{G}$
systems, the harmonic rejection should happen early in the receiver (RX) chain to avoid desensitizing the receiver and achieve a high harmonic blocker
$1\mathsf{dB}$
compression point
$(\mathsf{HB}_{1\mathsf{dB}})$
.