Research output per year
Research output per year
Anoop Narayan Bhat*, Ronan A.R. van der Zee, Bram Nauta
Research output: Contribution to journal › Article › Academic › peer-review
In this article, we propose a baseband noise-canceling receiver architecture to increase in-band linearity. A key feature of the architecture is that all active circuits are in baseband, including the low-noise transconductance amplifier (LNTA). The LNTA operating at baseband frequencies allows the use of feedback to increase the linearity. This article analyzes a tradeoff that exists between in-band linearity and noise in mixer-first receivers and shows how the proposed architecture breaks such tradeoff. The receiver targets high IF bandwidths, enabled by a transimpedance amplifier (TIA) composed of an OpAmp using only inverters. This article describes the stabilization mechanism of this OpAmp with a unity-gain bandwidth (UGB) of 7.6 GHz. The receiver is fabricated in 22-nm FDSOI CMOS. The measured results show an in-band IIP3 of > 9 dBm for an IF bandwidth of 175 MHz with sub-5-dB noise figure (NF) across 1-6-GHz local oscillator (LO) frequencies.
Original language | English |
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Pages (from-to) | 1994-2006 |
Number of pages | 13 |
Journal | IEEE journal of solid-state circuits |
Volume | 56 |
Issue number | 7 |
Early online date | 8 Dec 2020 |
DOIs | |
Publication status | Published - 1 Jul 2021 |
Research output: Contribution to journal › Article › Academic › peer-review