An n79 Sub-1-dB Noise Figure Highly Linear Variable-Gain LNA Employing Adaptive Imbalanced Bleeding for 5G NR

Abstract

Deployment of 5G New Radio (NR) fuels the promise of previously unimagined applications such as Metaverse and telemedicine. Located at the higher end of the 5G sub-6 GHz frequency range 1 (FR1), the n79 band (4.4 GHz - 5.0 GHz) is most appealing in terms of providing both broad area coverage and high data throughput. Previously, the obstacle was the lack of access to it. However, this roadblock was cleared in early 2021 by the Federal Communications Commission (FCC) Auction 107, which opened up part of the C-Band licenses to American carrier companies for 5G commercial services with bids exceeding 80 billion, making it the highest-grossing spectrum auction ever [1].