Results 61 to 70 of about 2,282,353 (338)

Multi-Band Array Antenna Sharing a Common Aperture with Heterogeneous Array Elements

Applied Sciences, 2022
This paper proposes a multi-band array antenna that shares a common aperture with heterogenous array elements. The multi-band array antenna includes one printed dipole antenna for the S-band and 3 × 3 array E-shaped patch antennas for the X-band.
Sungsik Wang, Hyunsoo Kim, Dongyoon Kim, Hosung Choo   +3 more
doaj   +1 more source

Sparse Array Mutual Coupling Reduction

IEEE Open Journal of Antennas and Propagation
This paper provides a concise overview of recent developments in sparse antenna arrays, with a specific focus on techniques for reducing mutual coupling.
C. Larmour, N. Buchanan, V. Fusco, M. A. B. Abbasi   +3 more
semanticscholar   +1 more source

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

Mutual Coupling Reduction in Patch Antenna Array Based on EBG Structure for MIMO Applications

Periodica Polytechnica Electrical Engineering and Computer Science, 2019
This paper presents a printed rectangular slot microstrip antenna array of two elements based on an Electromagnetic Band Gap (EBG) structure. The proposed EBG structure is invented to improve the isolation between the radiating elements for multiple ...
Y. Alnaiemy, T. Elwi, L. Nagy
semanticscholar   +1 more source

A Hybrid Bioprinting–Microfabrication Approach to Controllable Multitype Spheroid Arrays for Modeling Tumor Heterogeneity

Advanced Healthcare Materials, EarlyView.
This work introduces a “cancer‐in‐a‐well” technology that recreates tumor heterogeneity in vitro using multitype spheroid arrays. Combining bioprinting/microdispensing with microstructured culture devices, the system improves drug screening and modeling of tumor complexity.
Simone Bonetti, Eva Clemente, Emanuela Mensà, Marco de Maria, Fulvia Farabegoli, Emanuela Saracino, Barbara Bortolani, Emanuela Marcelli, Renato Brandimarti, Dario de Biase, Giampaolo Zuccheri   +10 more
wiley   +1 more source

Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications

International Journal of Antennas and Propagation, 2010
The mutual coupling between elements of a multifrequency dipole antenna array is experimentally investigated by S-parameter measurements and planar near-field scanning of the radiated field. A multifrequency array with six dipoles is analyzed.
E. Saenz, K. Guven, E. Ozbay, I. Ederra, R. Gonzalo   +4 more
doaj   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

Application of Metamaterial Wall for Mutual Coupling Mitigation of a Dual Differential Fed 2×2 Patch Array Antenna

IEEE Access
An effective technique for mutual coupling mitigation in a $2\times 2$ dual differential fed patch antenna array (DDFPAA) is presented. Metamaterial walls are placed between the radiating elements of an array in the two orthogonal planes of the antenna
Kam Eucharist Kedze, Wenyu Zhou, Nima Javanbakht, George Xiao, Eqab Almajali, Jim S. Wight, Jafar Shaker, Rony E. Amaya   +7 more
doaj   +1 more source

A Novel Multiband Low Mutual Coupling Quad-Element MIMO Antenna for Advanced Communication Systems

IEEE Access
This study presents a compact multi-band fork-shaped multiple input multiple output (MIMO) antenna design that integrates Carrel’s log-periodic concept with the planar log-periodic array (PLPA) mechanism to improve C, Ku, K, Ka, and Q band performance ...
Ijaz Khan, Chaoyun Song, Habib Ullah, Xiao-Zhi Qi, Kuang Zhang, Mian Muhammad Kamal, Yi-Zhi Shao, Tao Gong, S. Khan, P. Livreri, Mohammad Alibakhshikenari   +10 more
semanticscholar   +1 more source

Autonomous Folding of Soft Matter From Living Polymers

Advanced Materials, EarlyView.
Origami structures are endowed with “living” polymer creases that grow, remodel, and stiffen in response to nutrient solutions. This post‐fabrication growth enables autonomous folding, iterative regrowth, and mechanical tuning involving origami assemblies, such as cranes, Miura‐ori tessellations, rigid and non‐rigid square‐twist patterns, establishing ...
Jiahe Huang, Tuo Zhao, Shixi Zang, Deep Malu, Huajian Ji, Glaucio H. Paulino, Yuhang Hu   +6 more
wiley   +1 more source