ISSCC 2022
Session 24
RF & Wireless
A 110µW 2.5kb/s -103dBm-Sensitivity Dual-Chirp Modulated ULP Receiver Achieving -41dB SIR
*Equally-Credited Authors (ECAs) As the number of devices connected to the IoT has increased rapidly in recent years, stricter requirements have been placed on IoT radio receivers (RX) that can operate in an increasingly
ISSCC 2022
Session 24
RF & Wireless
A 266µW Bluetooth Low-Energy (BLE) Receiver Featuring an N-Path Passive Balun-LNA and a Pipeline Down-Mixing BB-Extraction Scheme Achieving 77dB SFDR and -3dBm OOB-B-1dB
University of Lisboa, Lisbon, Portugal 1 3 Ultra-low-power short-range radios are the cornerstone of building a world with the Internet-of-Everything connectivity. To secure a high sensitivity at a sub-mW power budget, s
ISSCC 2022
Session 24
RF & Wireless
A 22nm 0.84mm2 BLE Transceiver with Self IQ-Phase Correction Achieving 39dB Image Rejection and On-Chip Antenna Impedance Tuning
Figure 24.4.4 shows the proposed AIT providing optimum impedance matching for RX Kenichi Shibata, Hiroaki Matsui, Hironori Asano, Yuichi Kusaka, Keisuke Ueda, and TX independently with a wide impedance tunability. In TX
ISSCC 2022
Session 24
RF & Wireless
A 6.5-to-10GHz IEEE 802.15.4/4z-Compliant 1T3R UWB Transceiver
Xiaofeng Guo, Jianlong Huang, Nansong Li, Xueqing Hu, Rongde Ou, Wenzhe Liu, Bei Chen, Wen Zhang, Xiaofeng Xin, Bingcai Zhao, ZhenQi Chen Newradio Technology, Shenzhen, China Ultra-wideband (UWB) technology differentiate
ISSCC 2022
Session 24
RF & Wireless
A 1.66Gb/s and 5.8pJ/b Transcutaneous IR-UWB Telemetry System with Hybrid Impulse Modulation for Intracortical Brain-Computer Interfaces
Mario Konijnenburg1, Huib Visser1, Jac Romme1, Barundeb Dutta4, Morteza S. Alavi2, Christian Bachmann1, Yao-Hong Liu1 imec-Netherlands, Eindhoven, The Netherlands Delft University of Technology, Delft, The Netherlands 3
ISSCC 2022
Session 24
RF & Wireless
A Long-Range Narrowband RF Localization System with a Crystal-Less Frequency-Hopping Receiver
Semiconductor Japan, Yokohama, Japan 1 2 Emerging IoT applications, such as asset tracking and first-responder rescue operation, require a new localization solution that achieves decimeter-level accuracy for long range (
ISSCC 2022
Session 20
RF & Wireless
A 145.2dB-DR Baseline-Tracking Impedance Plethysmogram IC for Neckband-Based Blood Pressure and Cardiovascular Monitoring
separate I/Q channels. A bio-impedance input phase (φpst) varies depending on its electrode conditions such as configuration (2E or 4E) and environment (dry or wet). However, once the conditions are set and maintained, t
ISSCC 2022
Session 20
RF & Wireless
An SpO2 Sensor Using Reconstruction-Free Sparse Sampling for 70% System Power Reduction
oxygenation (SpO2) is a measure of hypoxemia and a sign of problems relating to breathing and circulation. Progressive drop in arterial SpO2 can be an early indicator of severe disease in COVID-19 patients [1]. A hypoxic
ISSCC 2022
Session 20
RF & Wireless
A Reconfigurable Sub-Array Multiplexing Microelectrode
Ji-Hyoung Cha1, Jee-Ho Park1, Yongjae Park1, Hyogeun Shin2, Kyeong Seob Hwang2, Il-Joo Cho2, Seong-Jin Kim1 Ulsan National Institute of Science and Technology, Ulsan, Korea Korea Institute of Science and Technology, Seou
ISSCC 2022
Session 20
RF & Wireless
A Miniaturized Wireless Neural Implant with Body-Coupled Data Transmission and Power Delivery for Freely Behaving Animals
University, Incheon, Korea, 4gBrain, Incheon, Korea *Equally Credited Authors (ECAs) 1 3 Miniaturized neural implants for monitoring neurological disorders have been investigated as a promising alternative to the neural
ISSCC 2022
Session 20
RF & Wireless
A 256-Channel 0.227µJ/class Versatile Brain Activity Classification and Closed-Loop Neuromodulation SoC with 0.004mm2-1.51µW/channel Fast-Settling Highly Multiplexed Mixed-Signal Front-End
Yashwanth Vyza1, Alix Trouillet1, Stéphanie P. Lacour1,3, Mahsa Shoaran1,3 EPFL, Lausanne, Switzerland Cornell University, Ithaca, NY 3 Center for Neuroprosthetics, Geneva, Switzerland 1 2 Closed-loop neuromodulation can
ISSCC 2022
Session 20
RF & Wireless
A 0.7V 17fJ/step-FOMW 178.1dB-FOMSNDR 10kHz-BW 560mVPP True-ExG Biopotential Acquisition System with Parasitic-Insensitive 421MΩ Input Impedance in 0.18µm CMOS
Taeryoung Seol1, Homin Jang1, Doyoung Lee1, Minkyu Je2, Ji-Woong Choi1, Arup K. George1, Junghyup Lee1 Daegu Gyeongbuk Institute of Science and Technology, Daegu, Korea KAIST, Daejeon, Korea 1 2 Insights derived from epi
ISSCC 2022
Session 20
RF & Wireless
A Time-Division Multiplexed 8-Channel Non-Contact ECG Recording IC with a Common-Mode Interference Tolerance of 20VPP
There has been increasing demand for a low-power wearable device to perform longterm ambulatory monitoring of electrocardiogram (ECG). However, for a wearable device to be a convenient continuous recording system in one’
ISSCC 2022
Session 20
RF & Wireless
A 0.5mΩ/√Hz 106dB SNR 0.45cm2 Dry-Electrode Bioimpedance Interface with Current Mismatch Cancellation and Boosted Input Impedance of 100MΩ at 50kHz
Bioimpedance (BioZ) analysis has been recognized as a new paradigm to derive a number of body composition and hemodynamic measures in a non-invasive manner. Measuring the changes in electrical resistance of the thorax du
ISSCC 2021
Session 6
RF & Wireless
Full-Duplex Receiver with Wideband Multi-Domain FIR
Aravind Nagulu*1, Sasank Garikapati*1, Mostafa Essawy2, Igor Kadota1, Tingjun Chen1, Arun Natarajan2, Gil Zussman1, Harish Krishnaswamy1 Columbia University, New York, NY Oregon State University, Corvallis, OR 1 2 *Equal
ISSCC 2021
Session 6
RF & Wireless
A 3dB-NF 160MHz-RF-BW Blocker-Tolerant Receiver with Third-Order Filtering for 5G NR Applications
imposed several challenges in the design of sub-6GHz receivers (RX). Firstly, the maximum channel bandwidth (2BW) increases to 100MHz, while a -15dBm continuous-wave (CW) blocker can be located only Δf=85MHz away from th
ISSCC 2021
Session 6
RF & Wireless
A 0.9V Dual-Channel Filtering-by-Aliasing Receiver Front-End Achieving +35dBm IIP3 and <−81dBm LO Leakage Supporting Intra- and Inter-Band Carrier Aggregation
Programmable receivers have drawn a lot of attention in recent years, especially those exploiting periodically time-varying (PTV) circuits. N-path filters and mixer-first receivers [1$3] achieve sharp filtering and good
ISSCC 2021
Session 6
RF & Wireless
A 4-Way Doherty Digital Transmitter Featuring 50%-LO Signed IQ Interleave Upconversion with more than 27dBm Peak Power and 40% Drain Efficiency at 10dB Power BackOff Operating in the 5GHz Band
Mohsen Hashemi1,4, Dieuwert Mul1, Leo C.N. de Vreede1, Morteza S. Alavi1 Delft University of Technology, Delft, The Netherlands now with imec-Netherlands, Eindhoven, The Netherlands 3 now with Broadcom-Netherlands, Bunni
ISSCC 2021
Session 6
RF & Wireless
A Low-Power and Low-Cost 14nm FinFET RFIC Supporting Legacy Cellular and 5G FR1
Seunghoon Kang, Ikkyun Jo, Suseop Ahn, Jaeseung Lee, Jeongyeol Bae, Won Ko, Wonjun Jung, Sangho Lee, Sangsung Lee, Euiyoung Park, Sungjun Lee, Jeongkyun Woo, Jaehoon Lee, Yanghoon Lee, Kyungmin Lee, Jongwoo Lee, Thomas B
ISSCC 2021
Session 26
RF & Wireless
An Impedance-Transforming N-Path Filter Offering Passive Voltage Gain
The four main passive circuit elements include the resistor, capacitor, inductor, and transformer. Inductors and transformers have been notoriously challenging to integrate in silicon, and they occupy a significant chip
ISSCC 2021
Session 26
RF & Wireless
A 5-to-6GHz Current-Mode Subharmonic Switching Digital Power Amplifier for Enhancing Power Back-Off Efficiency
Enhancing PA efficiency in the power back-off (PBO) region has become an important design objective due to the high peak-to-average power-ratio (PAPR) modulation in modern communications. Recently, a voltage-mode subharm
ISSCC 2021
Session 26
RF & Wireless
A Reflection-Coefficient Sensor for 28GHz Beamforming Transmitters in 22nm FD-SOI CMOS
Millimeter-wave beamforming transmitters use antenna arrays to increase the EIRP by focusing the radiation pattern into a direction chosen by programming the TX phase shifters. However, under sharp scanning angles, the a
ISSCC 2021
Session 26
RF & Wireless
A mm-Wave Power Amplifier for 5G Communication Using a Dual-Drive Topology Exhibiting a Maximum PAE of 50% and Maximum DE of 60% at 30GHz
The mm-wave spectrum is opening a new opportunity for TRx systems to operate at high-Gb/s data-rates. However, this opportunity is also imposing stringent requirements for power amplifiers (PAs) in terms of efficiency an
ISSCC 2021
Session 26
RF & Wireless
A Doherty-Like Load-Modulated Balanced Power Amplifier Achieving 15.5dBm Average Pout and 20% Average PAE at a Data Rate of 18Gb/s in 28nm CMOS
The continuous growth in demand for high-speed wireless connectivity is one of the main driving forces in the standardization and development of mm-wave systems. 5G new radio (NR) and also satellite communication with re
ISSCC 2021
Session 26
RF & Wireless
A 26-to-60GHz Continuous Coupler-Doherty Linear Power Amplifier for Over-An-Octave Back-Off Efficiency Enhancement
key enablers for 5G and beyond-5G wireless revolutions. To maximize the channel capacity, throughput, and frequency diversity, mm-wave wireless standards often mandate channels with GHz bandwidth (BW) over multiple non-c
ISSCC 2021
Session 21
RF & Wireless
An Integrated 2.4GHz -91.5dBm-Sensitivity Within-Packet Duty-Cycled Wake-Up Receiver Achieving 2µW at 100ms Latency
*Equally-Credited Authors (ECAs) The Internet-of-Things (IoT) requires dense sensor networks with low-latency response from wireless devices that operate on severely limited power budgets. Integrated wakeup receivers (Wu
ISSCC 2021
Session 21
RF & Wireless
A 0.75-to-1GHz Passive Wideband Noise-Cancelling 171µW Wake-Up RX and 440µW Primary RX FE with -86dBm/10kb/s Sensitivity, 35dB SIR and 3.8dB RX NF
Matthew L. Johnston1, Harish Krishnaswamy2, Arun Natarajan1 Oregon State University, Corvallis, OR Columbia University, New York, NY 1 2 *Equally-Credited Authors (ECAs) IoT transceiver deployments are envisioned to have
ISSCC 2021
Session 21
RF & Wireless
A Fully Integrated 2.7µW -70.2dBm-Sensitivity Wake-Up
-16.5dB-SIR, FEC and Cryptographic Checksum downconversion, charge summation, baseband amplification, and ADC without requiring static bias currents, driving-buffers, and level-shifting circuits at each interface, saving
ISSCC 2021
Session 21
RF & Wireless
A 3-to-10GHz 180pJ/b IEEE802.15.4z/4a IR-UWB Coherent Polar Transmitter in 28nm CMOS with Asynchronous Amplitude Pulse-Shaping and Injection-Locked Phase Modulation
Ming Ding, Johan Dijkhuis, Gert-Jan van Schaik, Elbert Bechthum, Johan van den Heuvel, Mohieddine El Soussi, Arjan Breeschoten, Hannu Korpela, Yao-Hong Liu, Christian Bachmann imec-Netherlands, Eindhoven, The Netherlands
ISSCC 2021
Session 21
RF & Wireless
A 1.125Gb/s 28mW 2m-Radio-Range IR-UWB CMOS Transceiver
Ewha Womans University, Seoul, Korea 1 2 As the amount of information that wireless communication devices carry increases more than ever, the importance of data transmission speed and efficiency has drastically increased
ISSCC 2021
Session 20
RF & Wireless
A 3.09-to-4.04GHz Distributed-Boosting and HarmonicImpedance-Expanding Multi-Core Oscillator with -138.9dBc/Hz at 1MHz Offset and 195.1dBc/Hz FoM
Zhejiang University, Hangzhou, China 1 2 The rapid development of high-speed communication and radar systems has placed stringent requirements on the spectral purity of RF oscillators. Also, maximizing battery lifetime,
ISSCC 2021
Session 20
RF & Wireless
A 5.0-to-6.36GHz Wideband-Harmonic-Shaping VCO Achieving 196.9dBc/Hz Peak FoM and 90-to-180kHz 1/f3 PN Corner Without Harmonic Tuning
Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Since 2001 [1], LC VCOs have been demonstrating significant improvements of figureof-merit (FoM) and 1/f3 phase noise (PN) corner [2-5] by exploring c
ISSCC 2020
Session 29
RF & Wireless
A 4×4 Distributed Multi-Layer Oscillator Network for Harmonic Injection and THz Beamforming with 14dBm EIRP at 416GHz in a Lensless 65nm CMOS IC
applications in communication, sensing, imaging, and spectroscopy [1]. However, due to the limited power-generation capability of a single source above the device fmax [2], efficient spatial power combining from multiple
ISSCC 2020
Session 29
RF & Wireless
THzID: A 1.6mm2 Package-Less Cryptographic Identification Tag with Backscattering and Beam-Steering at 260GHz
Chiraag S. Juvekar2, Wanyeong Jung1, Rabia Tugce Yazicigil3, Anantha P. Chandrakasan1, Ruonan Han1 Massachusetts Institute of Technology, Cambridge, MA Analog Devices, Boston, MA 3 Boston University, Boston, MA 1 2 Energ
ISSCC 2020
Session 29
RF & Wireless
A 490GHz 32mW Fully Integrated CMOS Receiver Adopting Dual-Locking FLL
increasing demand for low-cost, low-power, and high-sensitivity THz receiver. Lately, heterodyne structures in CMOS technologies have been emerging as suitable solutions due to their advantages of low cost, high integrat
ISSCC 2020
Session 29
RF & Wireless
A 660-to-676GHz 4×2 Oscillator-Radiator Array with Intrinsic Frequency-Filtering Feedback for Harmonic Power Boost Achieving 7.4dBm EIRP in 40nm CMOS
The THz region of the electromagnetic spectrum is gaining interest due to its unique spectroscopic properties that make it useful for gas detection, biological imaging, and accurate timekeeping. While several techniques
ISSCC 2020
Session 29
RF & Wireless
Sub-THz CMOS Molecular Clock with 43ppt Long-Term Stability Using High-Order Rotational Transition Probing and Slot-Array Couplers
Future ultra-broadband and low-latency radio access networks pose stringent specifications for time synchronizations. For 5G base stations, inter-site timing error should be <130ns for carrier aggregation and <10ns for h
ISSCC 2020
Session 29
RF & Wireless
High-Performance Isolators and Notch Filters Based on N-Path Negative Transresistance
circuits are used for a variety of functions, including the realization of oscillators and loss compensation. Active negative-resistance circuits, such as cross-coupled gm cells, can provide power gain but, when used for
ISSCC 2020
Session 29
RF & Wireless
Non-Magnetic 0.18µm SOI Circulator with Multi-Watt Power Handling Based on Switched-Capacitor Clock Boosting
There has been significant recent progress in the implementation of integrated non-reciprocal components based on linear periodically-time-varying (LPTV) circuits [1-5]. Nevertheless, integrated circulators still require
ISSCC 2020
Session 29
RF & Wireless
A 0.59THz Beam-Steerable Coherent Radiator Array with 1mW Radiated Power and 24.1dBm EIRP in 40nm CMOS
In THz imaging systems, signal sources are needed to provide illumination of objects. In several reported imaging systems working at 0.3THz, 0.62THz, and 0.81THz, an output power around 1mW is required to achieve an acce
ISSCC 2020
Session 29
RF & Wireless
A 0.42THz 9.2dBm 64-Pixel Source-Array SoC with Spatial Modulation Diversity for Computational Terahertz Imaging
Computational THz Imaging (CTI) is the process of indirectly forming images using algorithms that rely on a significant amount of computing. Unlike focalplane arrays (FPAs), a single-pixel camera (SPC) uses spatially pat
ISSCC 2020
Session 24
RF & Wireless
A W-Band Power Amplifier with Distributed CommonSource GaN HEMT and 4-Way Wilkinson-Lange Combiner Achieving 6W Output Power and 18% PAE at 95GHz
Science and Technology on Monolithic Integrated Circuits and Modules Laboratory, Nanjing, China 1 2 W-band power amplifiers (PAs) play an important role in Gb/s-data-rate wireless communication, imaging, and radar applic
ISSCC 2020
Session 24
RF & Wireless
A 15dBm 12.8%-PAE Compact D-Band Power Amplifier with Two-Way Power Combining in 16nm FinFET CMOS
The drive for higher data-rates has led to the allocation of the spectrum above 100GHz for D-band communication. A high level of integration in a nm-CMOS technology is necessary to keep the cost low and allow for efficie
ISSCC 2020
Session 24
RF & Wireless
An Instantaneously Broadband Ultra-Compact Highly Linear PA with Compensated Distributed-Balun Output Network Achieving >17.8dBm P1dB and >36.6% PAEP1dB over 24 to 40GHz and Continuously Supporting 64-/256-QAM 5G NR Signals over 24 to 42GHz
5G communication promises 10× to 100× data-rate increase to radically change future wireless connectivity. Millimeter-wave (mm-wave) bands can potentially deliver extreme data rates and capacity compared to low-GHz bands
ISSCC 2020
Session 24
RF & Wireless
A Watt-Level Multimode Multi-Efficiency-Peak Digital Polar Power Amplifier with Linear Single-Supply ClassG Technique
Signals for next-generation communication systems typically have high peak-toaverage power ratios (PAPR) (e.g., 10 to 13dB), forcing operation at deep output power backoff (PBO). A good efficiency at PBO is required to m
ISSCC 2020
Session 24
RF & Wireless
A 28GHz Current-Mode Inverse-Outphasing Transmitter Achieving 40%/31% PA Efficiency at Psat/6dB PBO and Supporting 15Gbit/s 64-QAM for 5G Communication
As mm-wave offers broader spectra and proportionate capacity increase, it will be extensively employed in 5G-and-beyond communication systems to address the exponentially growing data-rate demand. Viable mm-wave TX or PA
ISSCC 2020
Session 24
RF & Wireless
A Reconfigurable Series/Parallel Quadrature-CouplerBased Doherty PA in CMOS SOI with VSWR Resilient Linearity and Back-Off PAE for 5G MIMO Arrays
reconfigurations remain the same. In addition, the Main/Aux-PAs role exchange for series/parallel Doherty operation is enabled by setting the bias of two adaptive biasing circuits. Naga Sasikanth Mannem, Min-Yu Huang, Tz
ISSCC 2020
Session 10
RF & Wireless
A 4-Element 500MHz-Modulated-BW 40mW 6b 1GS/s Analog-Time-to-Digital-Converter-Enabled Spatial Signal Processor in 65nm CMOS
Next-generation phased-array systems with large modulated bandwidths (BW) and high energy efficiency will enable Gb/s wireless communications. The spatial signal processing at this large scale using state-of-the-art phas
ISSCC 2020
Session 10
RF & Wireless
A 0.26mm2 DPD-Less Quadrature Digital Transmitter With <-40dB EVM Over >30dB Pout Range in 65nm CMOS
based on RF digitalto-analog converters (DAC) are optimal for wireless transmitters in CMOS due to the small chip area, low power consumption, and ability to evolve with scaling of the transistor feature size. A DTX inte
ISSCC 2020
Session 10
RF & Wireless
A 4G/5G Cellular Transmitter in 12nm FinFET with Harmonic Rejection
Radio (NR) technology provides much higher data rate and system capacity compared to 4G LTE. This is achieved, among other techniques, by increasing the maximum channel bandwidth per component carrier (CC) from 20MHz in