Results 91 to 100 of about 644,516 (287)

Phased Antenna Arrays Beyond 1 THz from Lithium Niobate Photonic Circuits

Phased antenna arrays are essential for shaping the emission spectrum and the far-field radiation, enabling the suppression of undesired frequency bands and enhancing signal delivery to receivers by improving beam directionality [1 ...
Magalhaes, Leticia, Tomasino, Alessandro, Lončar, Marko, Lampert, Yazan, Shams-Ansari, Amirhassan, Gaier, Aleksei, Benea-Chelmus, Ileana Cristina, Rajabali, Shima, Cao, Xuhui   +8 more
core   +1 more source

Measurement and calibration challenges of microwave and millimeter-wave phased-arrays

, 2013
The effect of amplitude and phase errors on the radiation properties of phased array can be reduced by using a proper calibration scheme. Based on a brief review of microwave phased-arrays we derived the key requirements for a new anechoic millimeter ...
M. H. A. J. Herben, A. B. Smolders, Reniers, A.C.F.; id_orcid, Smolders, A.B.; id_orcid, Herben, M.H.A.J., U. Johannsen, Johannsen, U.; id_orcid, A. C. F. Reniers   +7 more
core   +1 more source

Single‐Cell Resolution Mapping of Osteoarthritis‐Associated Chondrocyte Dynamics Using a High‐Density CMOS MEA Platform

Advanced Healthcare Materials, EarlyView.
Single‐cell and spatially resolved impedance mapping using a high‐density CMOS‐MEA platform enables non‐invasive monitoring of osteoarthritis‐associated chondrocyte dynamics. Continuous label‐free measurements reveal heterogeneous remodeling behaviors, including proliferation, migration, and phenotypic transitions, establishing a powerful approach for ...
Neha Deshpande, Pauline Coquart, Bram Theuns, Susanne Cremery, Jaime Rodolfo V. Garcia III, Julien Verplanken, Dennis Lambrechts, Dries Braeken, Liesbet Lagae, Johanna Bolander   +9 more
wiley   +1 more source

Phased array antennas in MIMO receiver

Journal of Telecommunications and Information Technology, 2006
In this paper, a computer simulation of a MIMO system comprising phased array antennas (PAA) in all receiving branches is presented. In order to examine the system performance under relatively realistic conditions, a ray-tracing simulator was applied to generate a baseband channel impulse response matrix H.
Sebastian Kozłowski, Yevhen Yashchyshyn, Józef Modelski   +2 more
openaire   +2 more sources

Self‐Healing Hydrogel‐Enabled Modular Assembly of Bilayered Skin Construct for Hair Follicle Regeneration

Advanced Healthcare Materials, EarlyView.
Self‐healing assembly of two cell‐laden hydrogel layers creates a biomimetic skin construct that restores both dermal and epidermal functions, resulting in accelerated wound healing and enhanced hair follicle regeneration in a full‐thickness skin wound model. ABSTRACT Alopecia remains a pervasive clinical challenge, largely owing to the limited ability
JaeWook Park, Su Yong Kim, MinSu Jeong, Beom Joon Kim, Shin Hyuk Kang, Won‐Gun Koh   +5 more
wiley   +1 more source

Structure Synthesis of Linear Microstrip Phased Antenna Arrays [PDF]

, 2005
Осуществлен конструктивный синтез линейных микрополосковых фазированных антенных решеток из излучателей прямоугольной формы с учетом взаимного влияния между их элементами. Исследованы характеристики решеток c оптимальными параметрами, в первую очередь по
Селезнев, Д.Г., Резник, И.И., Селезнев, А.Д.   +2 more
core   +1 more source

Hybrid Biofabrication of a Hierarchically Organized Periosteum‐Inspired In Vitro Platform

Advanced Healthcare Materials, EarlyView.
A hybrid biofabrication strategy integrates melt electrowriting with extrusion‐based 3D bioprinting to create a hierarchically organized periosteum‐inspired in vitro platform. Spatially defined osteogenic, fibrous, and endothelial cell‐containing compartments support long‐term culture, osteogenic maturation, and CD31+ endothelial cell organization ...
Yakui Liu, Xinggui Tian, Anne Bernhardt, Anja Lode, Max von Witzleben, Ege Kirbas, Stefan Zwingenberger, Michael Gelinsky   +7 more
wiley   +1 more source

A Broadband and High Gain Tapered Slot Antenna for W-Band Imaging Array Applications

International Journal of Antennas and Propagation, 2014
A broadband and high gain tapered slot antenna (TSA) by utilizing a broadband microstrip- (MS-) to-coplanar stripline (CPS) balun has been developed for millimeter-wave imaging systems and sensors.
Dong Sik Woo, Kang Wook Kim, Hyun-Chul Choi   +2 more
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

Design and control of phased ICRF antenna arrays

, 1993
Phased antenna arrays operating in the ion cyclotron range of frequencies (ICRF) are used to produce highly directional wave spectra, primarily for use in current drive experiments. RF current drive using phased antennas has been demonstrated in both the
Goulding, R. H., Baity, F. W., Hoffman, D. J.   +2 more
core