Results 71 to 80 of about 26,311 (297)

Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture

Advanced Healthcare Materials, EarlyView.
This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus, Md Osman Goni Nayeem, Aastha Shah, Jason Hou, Shrihari Viswanath, Maya Eusebio, David Sadat, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren   +9 more
wiley   +1 more source

A fully bidirectional 2.4-GHz Wireless-Over-Fiber system using Photonic Active Integrated Antennas (PhAIAs) [PDF]

, 2007
This paper describes a low-cost scheme for implementing in-building distributed antenna systems using the photonic-active-integrated-antenna (PhAIA) concept, whereby photonic devices are integrated directly with planar antennas.
Cryan, MJ, Sittakul, V
core   +2 more sources

Self-Oscillating Capacitive Wireless Power Transfer with Robust Operation [PDF]

2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018
We show that a capacitive wireless power transfer device can be designed as a self-oscillating circuit using operational amplifiers. As the load and the capacitive wireless channels are part of the feedback circuit of the oscillator, the wireless power transfer can self-adjust to the optimal condition under the change of the load resistance and the ...
Chowkwale, B., Tretiakov, Sergei, Liu, Fu   +3 more
openaire   +4 more sources

Frequency Bifurcation Conditions for Capacitive Wireless Power Transfer with Multiple Receivers

2022 Wireless Power Week (WPW), 2022
Abstract: Capacitive wireless power transfer applies the electric field to transport energy from a transmitter to a receiver. However, if the distance between transmitter and receivers varies, the efficiency or power transfer is reduced for a system with a fixed load.
Lecluyse, Cédric, Kleemann, Michael, Minnaert, Ben   +2 more
openaire   +3 more sources

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

A critical review of compensation converters for capacitive power transfer in wireless electric vehicle charging circuit topologies

Green Energy and Intelligent Transportation
The compensation circuit plays a crucial role in the framework of Capacitive Power Transfer (CPT) in wireless Electric Vehicle (EV) charging schemes. Various wireless charging factors such as power transfer capacity, efficiency, and frequency depend on ...
Mohammad Amir, Izhar Ahmad Saifi, Mohammad Waseem, Mohd Tariq   +3 more
doaj   +1 more source

Integrated Broadband Bowtie Antenna on Transparent Silica Substrate

, 2016
The bowtie antenna is a topic of growing interest in recent years. In this paper, we design, fabricate, and characterize a modified gold bowtie antenna integrated on a transparent silica substrate.
Chen, Ray T., Chung, Chi-Jui, Pan, Zeyu, Subbaraman, Harish, Wang, Shiyi, Zhan, Qiwen, Zhang, Xingyu   +6 more
core   +1 more source

Micro air vehicles energy transportation for a wireless power transfer system [PDF]

, 2019
The aim of this work is to demonstrate the feasibility use of an Micro air vehicles (MAV) in order to power wirelessly an electric system, for example, a sensor network, using low-cost and open-source elements.
Casas Piedrafita, Óscar, Hontecillas Guinart, Lluís, Izquierdo Pérez, Ignacio, Polo Cantero, José   +3 more
core   +2 more sources

Design of Capacitive Wireless Power Transmission System in Seawater

DEStech Transactions on Environment, Energy and Earth Sciences, 2020
As an emerging power supply method, wireless power transmission has attracted extensive attention from researchers at home and abroad. Since there is no direct contact of the wires, it is expected to solve the problem of power supply life of the underwater robot.
GUANG-QIANG YU, ZHEN GAO, NING LIU
openaire   +2 more sources

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

Advanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo, Carme Martínez‐Domingo, Diego Gutiérrez, Dean Kos, Marta Mas‐Torrent   +4 more
wiley   +1 more source