Results 111 to 120 of about 8,850 (215)

Pneumatically-Actuated Liquid Metal-Based Frequency Reconfigurable Antenna. [PDF]

Adv Sci (Weinh)
Song Y, Bharambe A, Patel DK, Zhuo B, Zadan M, Majidi C, Kumar S.   +6 more
europepmc   +1 more source

Electrically Tunable Piezotronic Transistor by Coupling Interface Polar Symmetry and Strain Gradient

Advanced Science, EarlyView.
A macroscale tip‐induced strain gradient generates bulk piezo‐charges in GaN, enabling bias‐controlled shielding and selective Schottky barrier modulation. This strain‐gradient piezotronic transistor exhibits electrically switchable high‐ and low‐sensitivity states, providing ultrahigh strain sensitivity and wide tunability for adaptive mechanical ...
Gongwei Hu, Xiaoming Dong, Yihan Zhang, Yong Chao, Menglu Li, Min Liu, Liqing Pan, Lijie Li, Wei Huang, Fobao Huang   +9 more
wiley   +1 more source

Optically Controlled Bias-Free Frequency Reconfigurable Antenna. [PDF]

Sensors (Basel)
Younus KM, Sayidmarie K, Sultan K, Abbosh A.   +3 more
europepmc   +1 more source

A reconfigurable design for bandwidth enhancement of circularly polarized slot antennas

, 2012
[[abstract]]A reconfigurable design is proposed to improve the circular polarization (CP) operating bandwidth of an annular-ring slot antenna fed with an L-shaped coupling strip.
Hsieh, Tsung-Hsun; Row, Jeen-Sheen
core  

Graphene Aerogels With Spherical Pore Structure for Broad Frequency Regulation and Enhanced Low‐Frequency Response

Advanced Science, EarlyView.
A graphene aerogel with a spherical‐pore structure is constructed via microbubble templating. This unique architecture suppresses strain‐induced percolation of conductive networks, enabling dynamic frequency tuning. It also delivers enhanced low‐frequency absorption with an effective absorption bandwidth of 2.56 GHz, covering 91% of the low‐frequency ...
Liang Li, Jiale Yan, Gengping Wan, Changlong Du, Yubing Lv, Yongzhu Yan, Zhaoyang Li, Guizhen Wang   +7 more
wiley   +1 more source

A hybrid mode semi circular shaped frequency reconfigurable antenna for multiband communication. [PDF]

Sci Rep
Vinayagam K, Natarajan R.
europepmc   +1 more source

Design and Experimental Analysis of Multiband Frequency Reconfigurable Antenna for 5G and Sub-6 GHz Wireless Communication. [PDF]

Micromachines (Basel), 2020
Dildar H, Althobiani F, Ahmad I, Khan WUR, Ullah S, Mufti N, Ullah S, Muhammad F, Irfan M, Glowacz A.   +9 more
europepmc   +1 more source

FPGA controlled reconfigurable antenna

, 2010
At the present time, the advantages of reconfigurable antennas are numerous but limited by the method of controlling their configuration. This thesis proposes to utilize the advantages of Field Programmable Gate Arrays (FPGAs) to overcome this dilemma ...
Shelley, Severn
core  

Deep Learning Network‐Tailored Microenvironment Matching of 4D Bioprinting Bioactive Scaffolds for Bone Regeneration

Advanced Science, EarlyView.
A DLN dataset was built to analyze MABS composition versus in vitro/in vivo osteogenesis and angiogenesis. An MLP neural network, taking BG morphological parameters as input, extracts bioactive features from these datasets. A rabbit tibial defect model then validates 4D‐printed MABS for adaptability and bone regeneration in critical defects.
Xiongjie Liang, Yuechi Zhang, Weifeng Hu, Shiyan Lv, Fan Jia, Yan Zhang, Feng Wu, Changjiang Yang, Guanqi Zhen, Jinglong Yan, Xu Cui, Wei Zhao, Guanghua Chen   +12 more
wiley   +1 more source

Machine learning-optimized compact wearable frequency reconfigurable antenna for sub-6 GHz/mm-wave 5G integration. [PDF]

Sci Rep
Salisu A, Elwanis MA, Elfergani I, Musa U, Alfares A, Gharbia I, Rodriguez J, See CH, Abd-Alhameed R.   +8 more
europepmc   +1 more source