A 220-to-320-GHz FMCW Radar in 65-nm CMOS Using a Frequency-Comb Architecture

2026-06-27 Hits:

Affiliation of Author(s):Massachusetts Institute of Technology (MIT)

Journal:IEEE Journal of Solid-State Circuits (JSSC)

Place of Publication:USA

Key Words:Bandwidth, CMOS integrated circuit, frequency comb, frequency-modulated continuous-wave (FMCW) radar

Abstract:This article presents a CMOS-based, ultra-broadband frequency-modulated continuous-wave (FMCW) radar using a terahertz (THz) frequency-comb architecture. The high-parallelism spectral sensing provided by this architecture significantly reduces the bandwidth requirement for the THz front-end circuitry and ensures that the peak output power and sensitivity are maintained across the entire band of operation. The speed and linearity of frequency chirping are also improved by the comb system. An antenna-sharing scheme based on a square-mixer-first architecture is used, which not only leads to compa

Note:https://ieeexplore.ieee.org/document/9194761

All the Authors:Cheng Wang,Xibi Chen,Jinchen Wang,Jesús Grajal

First Author:Xiang Yi

Indexed by:Journal

Correspondence Author:Ruonan Han

Document Code:10.1109/JSSC.2020.3020291

Discipline:Engineering

First-Level Discipline:Electronic science and technology

Volume:56

Issue:2

Page Number:327 - 339

Translation or Not:no

Date of Publication:2021-02-01

Date of Publication:2021-02-01