CMOS time-to-digital converters for biomedical imaging applications

R Scott, W Jiang, MJ Deen - IEEE reviews in biomedical …, 2021 - ieeexplore.ieee.org
Time-to-digital converters (TDCs) are high-performance mixed-signal circuits capable of
timestam** events with sub-gate delay resolution. As a result of their high-performance, in …

A CMOS 76–81-GHz 2-TX 3-RX FMCW radar transceiver based on mixed-mode PLL chirp generator

T Ma, W Deng, Z Chen, J Wu, W Zheng… - IEEE Journal of Solid …, 2019 - ieeexplore.ieee.org
A fully integrated 76-81-GHz frequency-modulated, continuous-wave (FMCW) radar
transceiver (TRX) in a 65-nm CMOS is presented. Two transmitters (TXs) and three receivers …

A 76–81 GHz 2× 8 MIMO radar transceiver with broadband fast chirp generation and 16-antenna-in-package virtual array

Z Duan, B Wu, Y Wang, Y Fang, Y Li… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
This article presents a 76–81 GHz millimeter-wave (mm-wave) radar transceiver and a 2 8
multi-input multi-output (MIMO) antenna-in-package (AiP) for automotive radar applications …

A self-adapted two-point modulation type-II digital PLL for fast chirp rate and wide chirp-bandwidth FMCW signal generation

W Deng, Z Chen, H Jia, A Yan, S Sun… - IEEE Journal of Solid …, 2021 - ieeexplore.ieee.org
Different from the conventional two-point modulation (TPM) type-II phase-locked loops
(PLLs) requiring non-trivial gain calibrations and TPM type-III PLLs with loop stability …

A high linearity TDC with a united-reference fractional counter for LiDAR

W Zhang, R Ma, X Wang, H Zheng… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
A united-reference fractional counter (URFC) is proposed for multi-level time-to-digital
converters (TDCs) used in direct time-of-flight (dToF) light detection and ranging (LiDAR) …

A 12-GHz calibration-free all-digital PLL for FMCW signal generation with 78 MHz/μs chirp slope and high chirp linearity

Z Shen, H Jiang, H Li, Z Zhang, F Yang… - … on Circuits and …, 2020 - ieeexplore.ieee.org
A novel all-digital phase-locked loop (ADPLL) for fast and high-linear FMCW signal
generation is presented in this paper. Fast chirp slope is enabled by two-point modulation …

A 16-GHz background-calibrated duty-cycled FMCW charge-pump PLL

PT Renukaswamy, K Vaesen… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
A 16-GHz charge-pump phase-locked loop (CP-PLL) for a robust duty-cycled frequency-
modulated continuous-wave (FMCW) radar chirp generation is presented. A duty-cycling …

A 35-GHz TX and RX front end with high TX output power for Ka-band FMCW phased-array radar transceivers in CMOS technology

W Deng, R Wu, Z Chen, M Ding… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
A 35-GHz transmitter (TX) and receiver (RX) front end in CMOS technology for Ka-band
frequency-modulated continuous wave (FMCW) phased-array radar transceivers are …

An 85-GHz power amplifier utilizing a transformer-based power combiner operating beyond the self-resonance frequency

VS Trinh, JD Park - IEEE Journal of Solid-State Circuits, 2021 - ieeexplore.ieee.org
In this study, we demonstrate an 85-GHz eight-way four-stage power amplifier (PA) with
transformer-based power combiners (PCs) and power splitters (PSs) operating beyond their …

An E-Band transformer-based× 8 frequency multiplier with enhanced harmonic rejection

VS Trinh, JD Park - IEEE Transactions on Microwave Theory …, 2022 - ieeexplore.ieee.org
We present an efficient method of enhancing the harmonic rejection ratio (HRR) of a
millimeter-wave frequency multiplier (FM) by utilizing optimal capacitive loads with minimal …