Results 81 to 90 of about 8,850 (215)

Frequency-domain reconfigurable antenna for COVID-19 tracking. [PDF]

Sens Int, 2021
Akinola A, Singh G, Ndjiongue A.
europepmc   +1 more source

Engineering Neuronal Network Connectivity Through Precise and Scalable Electrical Modulation

Advanced Science, EarlyView.
This study presents a scalable all‐electrical method for precise neuronal‐circuit reconfiguration based on high‐density microelectrode arrays. By employing biologically inspired plasticity rules, targeted connectivity changes were successfully induced and quantified across diverse neuronal preparations.
Sreedhar S. Kumar, Yannaël Bossard, Rachel Sava, Tobias Gänswein, Lorenca Sadiraj, Jean‐Samuel Dupré, Manuel Schröter, J. Gray Camp, Fernando Cardes, Julian Bartram, Andreas Hierlemann   +10 more
wiley   +1 more source

Reconfigurable Antenna Array Direction Finding System Based on a Fast Search Algorithm. [PDF]

Sensors (Basel), 2021
Liu C, Peng D, Chen Z, Wu Y, Wang B.
europepmc   +1 more source

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

Liquid-Based Reconfigurable Antenna Technology: Recent Developments, Challenges and Future. [PDF]

Sensors (Basel), 2021
Abu Bakar H, Abd Rahim R, Soh PJ, Akkaraekthalin P.   +3 more
europepmc   +1 more source

An Autonomous Reconfigurable Antenna [PDF]

, 2019
Today?s wireless communications involve more antenna capabilities while occupying the same amount of space. Antennas are able to operate at multiple frequencies [1]-[2], change polarizations [6], have selectable radiation patterns [1] and are becoming ...
Hinsz, Lee
core  

Reconfigurable water antennas

, 2014
This paper introduces two types of reconfigurable water antennas. One is a water-grating leaky-wave antenna and the other is a sea-water monopole antenna. The water-grating leaky-wave antenna consists of a parabolic reflecting surface-wave launcher and a
Hu, Zhenxin, Zhenxin Hu, Hua, Changzhou, Shen, Zhongxiang, Changzhou Hua, Zhongxiang Shen   +5 more
core   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

Advanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Design and Realization of an UHF Frequency Reconfigurable Antenna for Hybrid Connectivity LPWAN and LEO Satellite Networks. [PDF]

Sensors (Basel), 2021
Bouyedda A, Barelaud B, Gineste L.
europepmc   +1 more source

Wideband frequency-reconfigurable antenna for sub-6 GHz wireless communication [PDF]

This paper presents a compact dual-band frequency-reconfigurable monopole antenna for sub-6 GHz wireless applications. Using a single PIN diode, the antenna switches between 2.7 GHz and 3.9 GHz bands, achieving bandwidths of 472 MHz and 1130 MHz ...
Trapasiya, Samir, Tandel, Tejal
core   +1 more source