A wideband low power RF Receiver Front-End for Internet-of-Things applications

• DOI: 10.1016/j.mejo.2023.106064
• Publication Date: 2023-12-27T16:33:07Z
• Authors: Rong Zhou; Jianhang Yang; Linwei Wang; Xiaoteng Zhao; Shubin Liu; Depeng Sun
• Keywords: RF front end; Balun; Radio receiver design; Wideband; Direct-conversion receiver

This paper presents a broadband RF receiver front-end circuit that offers advantages in both area and power consumption. The design features an innovative dual-path noise-canceling Low-Noise Amplifier (LNA) circuit, achieving impedance matching balun functionality without the need for on-chip inductors. comprises I Q doublebalanced quadrature passive mixers 25% duty-cycle LO generator. circuit's characteristics enable it to operate across wide range of frequency bands. It is implemented using 65 nm CMOS process. core including baseband signal paths, consumes mere 12 mW power. Test results demonstrate achieves conversion gain 35–40 dB, noise figure (NF) below 4.8 minimum third-order intercept point (IIP3) exceeding −6.8 dBm over 0.1–3.1 GHz range. chip's overall footprint compact at 0.9 mm2, with entire path powered by 1 V supply, offering clear terms compactness low