Results 11 to 20 of about 585,344 (349)

Almost lossless analog signal separation [PDF]

2013 IEEE International Symposium on Information Theory, 2013
To be presented at IEEE Int. Symp. Inf.
Stotz, David, Riegler, Erwin, Bölcskei, Helmut   +2 more
openaire   +4 more sources

A 10.6-mW 26.4-GHz Dual-Loop Type-II Phase-Locked Loop Using Dynamic Frequency Detector and Phase Detector

IEEE Access, 2020
This paper reports a millimeter (mm)-wave type-II dual-loop phase-locked loop (PLL) with low-power and low-complexity design for improving jitter-power performance and power efficiency.
Zunsong Yang, Yong Chen, Shiheng Yang, Pui-In Mak, Rui P. Martins   +4 more
doaj   +1 more source

A High-Efficiency Dual-Antenna RF Energy Harvesting System Using Full-Energy Extraction With Improved Input Power Response

IEEE Open Journal of Circuits and Systems, 2021
This paper presents a dual-antenna energy harvesting (EH) system using full-energy extraction (FEE) to reduce the buffer capacitor requirement and improve the input power response speed.
Zhaobo Zhang, Chenchang Zhan, Man-Kay Law, Yang Jiang, Pui-In Mak, Rui P. Martins   +5 more
doaj   +1 more source

Energy Harvesting in Implantable and Wearable Medical Devices for Enduring Precision Healthcare

Energies, 2022
Modern healthcare is transforming from hospital-centric to individual-centric systems. Emerging implantable and wearable medical (IWM) devices are integral parts of enabling affordable and accessible healthcare.
Md Maruf Hossain Shuvo, Twisha Titirsha, Nazmul Amin, Syed Kamrul Islam   +3 more
doaj   +1 more source

pH Regulator on Digital Microfluidics with Pico-Dosing Technique

Biosensors, 2023
Real-time pH control on-chip is a crucial factor for cell-based experiments in microfluidics, yet difficult to realize. In this paper, we present a flexible pH regulator on a digital microfluidic (DMF) platform.
Haoran Li, Tao Peng, Yunlong Zhong, Meiqing Liu, Pui-In Mak, Rui P. Martins, Ping Wang, Yanwei Jia   +7 more
doaj   +1 more source

SpikoPoniC: A Low-Cost Spiking Neuromorphic Computer for Smart Aquaponics

Agriculture, 2023
Aquaponics is an emerging area of agricultural sciences that combines aquaculture and hydroponics in a symbiotic way to enhance crop production. A stable smart aquaponic system requires estimating the fish size in real time.
Ali Siddique, Jingqi Sun, Kung Jui Hou, Mang I. Vai, Sio Hang Pun, Muhammad Azhar Iqbal   +5 more
doaj   +1 more source

A switched‐capacitor‐assisted wireless power transfer system with regulating TX power and fast global loop

Electronics Letters, 2022
Wireless power transfer systems demand a regulating transmitter (TX) for global loop control and also a regulating receiver (RX) for its local loop. This design broadens the TX output power range, by merging a switched capacitor (SC) circuit with only 3 ...
Chenyu Huang, Yan Lu, Chenchang Zhan, Rui P. Martins   +3 more
doaj   +1 more source

Wideband Variable-Gain Amplifiers Based on a Pseudo-Current-Steering Gain-Tuning Technique

IEEE Access, 2021
This paper reports two variable-gain amplifiers (VGAs) featuring a new pseudo-current-steering gain-tuning technique. In the first VGA (VGA-I), a single-voltage-controlled dual-branch current mirror is developed as a standalone gain control block. In the
Lingshan Kong, Yong Chen, Haohong Yu, Chirn Chye Boon, Pui-In Mak, Rui P. Martins   +5 more
doaj   +1 more source

A 5 GS/s 29 mW Interleaved SAR ADC With 48.5 dB SNDR Using Digital-Mixing Background Timing-Skew Calibration for Direct Sampling Applications

IEEE Access, 2020
This article presents a 16-channel 5 GS/s time-interleaved (TI) SAR ADC for a direct-sampling receiver that employs a digital-mixing background timing mismatch calibration to compensate for timing-skew errors.
Mingqiang Guo, Jiaji Mao, Sai-Weng Sin, Hegong Wei, Rui P. Martins   +4 more
doaj   +1 more source

Fully-Integrated Timers for Ultra-Low-Power Internet-of-Things Nodes—Fundamentals and Design Techniques

IEEE Access, 2022
Driven by the momentum toward compact and low-power Internet-of-Things (IoT) systems, the research on fully-integrated and energy-efficient kHz-to-MHz timers increased explosively.
Mikki How-Wen Loo, Harikrishnan Ramiah, Ka-Meng Lei, Chee Cheow Lim, Nai Shyan Lai, Pui-In Mak, Rui P. Martins   +6 more
doaj   +1 more source