Print Email Facebook Twitter A Current Re-Use Quadrature RF Receiver Front-End for Low Power Applications Title A Current Re-Use Quadrature RF Receiver Front-End for Low Power Applications: Blixator Circuit Author Barzgari, Mohammad (Sharif University of Technology) Ghafari, A. (TU Delft QCD/Sebastiano Lab) Meghdadi, Masoud (Shahid Beheshti University) Medi, Ali (Sharif University of Technology) Date 2022 Abstract This article presents the theory and implementation of a quadrature and differential RF front-end receiver. Combining balun, low-noise amplifier (LNA), mixer, and oscillator in a single stage, the proposed circuit, named the Blixator, is well suited for low-power applications. The baseband's transimpedance amplifier (TIA) also shares part of its dc current with the Blixator cell, resulting in sub-milliwatt power consumption. To avoid additional power and area by quadrature LO generation, the I/Q signals are generated at RF, employing the inductors already required for providing the dc current path of the LNA transistors. The expressions for gain, noise figure (NF), and phase noise of the voltage-controlled oscillator (VCO) are derived, and the behavior of the circuit is thoroughly investigated. The prototype of the Blixator receiver is implemented in a 0.18-μm CMOS technology. The experimental results show a NF of 10.5 dB, an IIP3 of -15.5 dBm, at the maximum gain, and an image rejection of 23 dB, which meets the requirements for the Bluetooth Low Energy (BLE) standard. The circuit consumes only 340-μW, from a 0.8-V supply, and its die area is 0.75 mm2. Subject BalunsBlixatorBluetooth Low Energy (BLE)Impedanceimpulse sensitivity function (ISF)InductorsInternet of Things (IoT)low-noise amplifier-mixer-voltage-controlled oscillator (LMV).MixersOscillatorsRadio frequencyReceivers To reference this document use: http://resolver.tudelft.nl/uuid:1f78f9a6-e637-4927-b106-e8fa2a7a7227 DOI https://doi.org/10.1109/JSSC.2022.3147101 ISSN 0018-9200 Source IEEE Journal of Solid State Circuits, 57 (9), 2672-2684 Part of collection Institutional Repository Document type journal article Rights © 2022 Mohammad Barzgari, A. Ghafari, Masoud Meghdadi, Ali Medi Files PDF A_Current_Re_Use_Quadratu ... ircuit.pdf 4.25 MB Close viewer /islandora/object/uuid:1f78f9a6-e637-4927-b106-e8fa2a7a7227/datastream/OBJ/view