Results 71 to 80 of about 5,866 (267)

Circularly Polarized Ultra-Wideband Antenna for Uni-Traveling-Carrier Photodiode Terahertz Source. [PDF]

Sensors (Basel), 2023
Li Q, Nie C, Liu Z, Zhou X, Cheng X, Liang S, Yao Y.   +6 more
europepmc   +1 more source

Giant Anisotropy and High Second‐Order Nonlinearity of 3R‐MoS2 for Multifunctional Photonics

Advanced Materials, EarlyView.
Graphical abstract highlights, 3R‐polytype of MoS2 (3R‐MoS2) as a multifunctional photonic platform enabled by giant optical anisotropy and optical nonlinearities, demonstrating subdiffractional waveguiding, giant second‐harmonic (SH) generation, and high‐performance reflective polarization control.
Georgy Ermolaev, Dmitriy Grudinin, Liudmila Klimova, Adilet Toksumakov, Mikhail Gubin, Anton Minnekhanov, Aleksandr Slavich, Mikhail Mironov, Arslan Mazitov, Dmitry Yakubovsky, Nikolay Pak, Andrey Vyshnevyy, Ivan Kruglov, Gleb Tselikov, Alexei Prokhorov, Aleksey Arsenin, Kostya S. Novoselov, Valentyn Volkov   +17 more
wiley   +1 more source

Hybrid Amyloid–Boron Nitride Aerogels for Lightweight Sound Insulation

Advanced Materials, EarlyView.
Amyloid fibrils template the mild formation of boron nitride–rich hybrid aerogels with hierarchical porosity, enhanced BN‐like ordering, and fibril‐reinforced mechanics. These ultralight materials combine thermal stability with strong sound absorption and transmission loss, offering a sustainable bio‐assisted route toward lightweight acoustic shields ...
Mohammad Peydayesh, Andrin Lustgarten, Stefan Schoenwald, Enrico Boschi, My Hanh Bui, Ali Miserez, Felix Donat, Christoph R. Müller, Raffaele Mezzenga   +8 more
wiley   +1 more source

COMPACT AND EFFICIENT UWB ANTENNA FOR SMART VEHICLE COMMUNICATION SYSTEMS

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ
The most recent wireless technology is ultra-wideband (UWB), which makes use of a broad frequency range for efficient communication, fast data transmission, and precise position recognition.
Amjad Kadhum Majeed, Rashid Ali Fayadh, Mousa K. Wali, H. S. Mohammed   +3 more
doaj   +1 more source

A Low-Profile, Triple-Band, and Wideband Antenna Using Dual-Band AMC. [PDF]

Sensors (Basel), 2023
Gonçalves Licursi de Mello R, Lepage AC, Begaud X.   +2 more
europepmc   +1 more source

Topology‐Orchestrated Multi‐physical Energy Control in Turtle Shell‐Inspired Metamaterials

Advanced Materials, EarlyView.
A turtle shell‐inspired lattice metamaterial efficiently manages acoustic, fluid‐thermal, and mechanical energy flows simultaneously. The unique hybrid‐coupling architecture achieves superior sound attenuation via pore‐cavity resonance, facilitates effective airflow transport, and maximizes mechanical energy absorption through multistage cell ...
Xi Wang, Shiyi Wang, Bingzhi Chen, Xinwei Li   +3 more
wiley   +1 more source

Wideband/Dual-Band Dielectric Filtering Inverted-L Antenna With Reflective and Quasi-Reflectionless Radiation Nulls

IEEE Open Journal of Antennas and Propagation
A class of dielectric filtering inverted-L antenna with reflective- and quasi-reflectionless-type radiation nulls is proposed to achieve wideband or dual-band operation.
Wen Zheng, Shiyan Wang, Yin Li, Zai-Cheng Guo, Gang Zhang, Li Yang, Roberto Gomez-Garcia   +6 more
doaj   +1 more source

Non-Foster Impedance Wideband Matching Technique for Electrically Small Active Antenna

International Journal of Antennas and Propagation, 2013
This paper investigates a non-Foster wideband circuit matching technique for an electrically small antenna (ESA). By introducing a negative impedance convertor into an active network, the active network can obtain an equivalent input gain at input port ...
Wenxing Li, Ning Zhai, Ruilong Chen, Wenhua Yu   +3 more
doaj   +1 more source

Miniaturized Wideband Antenna Prototype Operating over the Ku-Band. [PDF]

Micromachines (Basel), 2022
Shrestha S, Zahra H, Kiyani A, Asadnia M, Abbas SM, Mahmoud A.   +5 more
europepmc   +1 more source

Ultralow‐Dispersion Silicon THz Photonic Crystal Interconnects for Multichannel Datalinks

Advanced Materials, EarlyView.
An all‐silicon terahertz photonic crystal waveguide interconnect enables 452 Gbps aggregate data transfer through seven complex‐modulated channels. By revealing the impact of ultralow dispersion on link performance and achieving a record interconnect figure of merit, the work advances centimeter‐scale THz on‐chip communication for future data‐centre ...
Nikhil Navaratna, Thomas CaiWei Tan, Pascal Szriftgiser, Guillaume Ducournau, Ranjan Singh   +4 more
wiley   +1 more source