High-performance multiband ambient RF energy harvesting front-end system for sustainable IoT applications—A review

YC Lee, H Ramiah, A Choo, KKP Churchill… - IEEE …, 2023 - ieeexplore.ieee.org
The increasing demand for wireless Internet of Things (IoT) calls for power efficient RF
energy harvesting approach. The current dominant single-band RF energy harvesting front …

Energy harvesting methods for transmission lines: a comprehensive review

JR Riba, M Moreno-Eguilaz, S Bogarra - Applied Sciences, 2022 - mdpi.com
Humanity faces important challenges concerning the optimal use, security, and availability of
energy systems, particularly electrical power systems and transmission lines. In this context …

A fully-integrated CMOS dual-band RF energy harvesting front-end employing adaptive frequency selection

WX Lian, H Ramiah, G Chong, KKP Churchill… - IEEE …, 2023 - ieeexplore.ieee.org
This paper proposes a fully-integrated dual-band CMOS RF energy harvesting (RFEH) front-
end with an adaptive frequency selector that can select between two harvesting frequencies …

An ultra-low power wake-Up timer compatible with n-FET based flexible technologies

D Narbón, JL Soler-Fernández, A Santos… - npj Flexible …, 2025 - nature.com
Flexible integrated circuits (FlexICs) have drawn increasing attention, particularly in remote
sensors and wearables operating in a limited power budget. Here, we present an ultra-low …

A Subthreshold Operation Series-Parallel Charge Pump Incorporating Dynamic Source-Fed Oscillator for Wide-Input-Voltage Energy Harvesting Application

YJ Kee, H Ramiah, KKP Churchill, G Chong… - IEEE …, 2023 - ieeexplore.ieee.org
This work proposes a CMOS reconfigurable charge pump (CP) for a low-voltage energy
harvesting system. It utilizes the low effective resistance from the parallel CP to enhance its …

Design and implementation of hybrid DC-DC converter: A Review

TS Chang, H Ramiah, Y Jiang, CC Lim, NS Lai… - IEEE …, 2023 - ieeexplore.ieee.org
The advancement in Power Management Integrated Circuit (PMIC) has driven the dc-dc
conversion technology into a System-on-Chip (SoC) solutions, leveraging CMOS technology …

A 0.4-V 500-kHz FLL With Reused TDA-Based Calibration and OTA-Accelerated Technique in 65-nm CMOS for Sleep Timer

L Wang, R Zhou, J Yang, Z Li, Z Dong… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In compact and cost-constrained IoT low-power applications, the ultra-low-voltage (ULV) on-
chip frequency-locked loop (FLL) offers a potential alternative to crystal oscillators while …

Recharging Zero Energy Devices: Multi-Frequency RF Energy Harvesting Perspective

P Odong, AH Abd El-Malek, A Allam… - … Africa Conference on …, 2023 - ieeexplore.ieee.org
Telecom and electronics have grown more multi-disciplinary than autonomous in the wake
of Industry 5.0. As a result, it is expected that every facet of human life will contribute to the …

A low power all-digital frequency locked loop with resource-efficient frequency detector and hysteresis lock detector

Y Zhao, J Mitsugi, H Min - IEICE Electronics Express, 2024 - jstage.jst.go.jp
Abstract Trillions of Internet of Things devices require rigorous design trade-offs regarding
size, cost, and energy efficiency, leading to design challenges for clock modules. This paper …

An Ultra-Low-Voltage Single-Crystal Oscillator-Timer (XO-Timer) Delivering 16-MHz and 32.258-kHz Clocks for Sub-0.5-V Energy-Harvesting BLE Radios in 28-nm …

L Lin, KM Lei, PI Mak, RP Martins - IEEE Open Journal of …, 2023 - ieeexplore.ieee.org
This paper reports an ultra-low-voltage (ULV) single-crystal oscillator-timer (XO-Timer) for
sub-0.5 V Bluetooth low-energy (BLE) radios that aims for self-powering by harvesting the …