Results 131 to 140 of about 19,885 (293)

Microwave characterization of slotline on high resistivity silicon for antenna feed network [PDF]

Conventional silicon wafers have low resistivity and consequently unacceptably high value of dielectric attenuation constant. Microwave circuits for phased array antenna systems fabricated on these wafers therefore have low efficiency.
Lee, Richard Q., Simons, Rainee N., Taub, Susan R., Young, Paul G.   +3 more
core   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

High gain circularly polarized graphene inspired dielectric resonator antenna for 6G IOT THz optical communication and optical refractive index Biosensing applications

Engineering Science and Technology, an International Journal
In this article a high gain (≈13dBi) circularly polarized dielectric resonator antenna (DRA) has been designed with silicon and graphene based nano materials for 6G terahertz (THz) nano communication and bio sensing applications. This antenna having 2.2 %
Shipra Srivastava, Saptarshi Gupta, Vibhav Kumar Sachan, Gaurav Saxena, Satya Sai Srikant   +4 more
doaj   +1 more source

Multi-feed, loop-dipole combined dielectric resonator antenna arrays for human brain MRI at 7 T. [PDF]

MAGMA, 2023
Wenz D, Dardano T.
europepmc   +1 more source

The design and fabrication of microstrip omnidirectional array antennas for aerospace applications [PDF]

A microstrip antenna design concept was developed that will provide quasi-omnidirectional radiation pattern characteristics about cylindrical and conical aerospace structures. L-band and S-band antenna arrays were designed, fabricated, and, in some cases,
Appleton, M. W., Campbell, T. G., Lusby, T. K.   +2 more
core   +1 more source

Electrically Assisted Thermal Stamping of Tunable Carbon‐Based Nanofilms for Direct Fabrication of Hydrophobic, Energy Harvesting, and Sensing Devices

Advanced Materials, EarlyView.
Schematic illustration of the electrically assisted thermal stamping (EATS) method for direct fabrication of carbon‐based nanofilms and their multifunctional applications. Localized Joule heating triggers simultaneous exfoliation, reduction, and fluoropolymer incorporation under ambient conditions, yielding tunable carbon‐based thin‐film coatings ...
Byungseok Seo, Yong Choi, Gajendra S. Shekhawat, Minjoong Shin, Kunmo Koo, Xiaobing Hu, Jiheon Kim, Wonjoon Choi, Xinqi Chen, Vinayak P. Dravid   +9 more
wiley   +1 more source

A Low-Profile Dielectric Resonator Antenna Array for OAM Waves Generation at 5G NR Bands. [PDF]

Micromachines (Basel), 2023
Abd Rahman NA, Noor SK, Ibrahim IM, Yasin MNM, Ismail AM, Osman MN, Ismail SB.   +6 more
europepmc   +1 more source

Coupling Nanostructured Plasmon–Strain Microwave Waveguide to Spin Defects in Hexagonal Boron Nitride for High‐Sensitivity Quantum Sensors

Advanced Materials, EarlyView.
Coupling of spin‐active VB−$V_B^ - $ defects in hBN with alumina‐coated gold plasmonic nanoresonators (PNRs), integrated into a microwave‐efficient waveguide, constitutes a plasmon‐strain architecture that enhances their photoluminescence and spin contrast. This platform enables a tenfold quantum yield improvement and achieves a DC magnetic sensitivity
Naveed Hussain, Sumukh Vaidya, Saakshi Dikshit, Shahriar Esmaeili, Paul Schmalenberg, Hayate Yamano, Katsunori Danno, Biswajit Sahoo, Shougo Higashi, Ercan M. Dede, Tongcang Li, Debasish Banerjee, Songtao Wu   +12 more
wiley   +1 more source

Metamaterial inspired square gap defected ground structured wideband dielectric resonator antenna for microwave applications. [PDF]

Heliyon, 2023
Raghavendra C, Neelaveni Ammal M, Madhav BTP.   +2 more
europepmc   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

Advanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti, Carla Boix‐Constant, Iván Gómez‐Muñoz, Diego López‐Alcalá, Sergio Revuelta, Marco Ballabio, Vasileios Balos, José J. Baldoví, Enrique Cánovas, Josep Canet‐Ferrer, Guillermo Mínguez Espallargas, Samuel Mañas‐Valero, Eugenio Coronado   +12 more
wiley   +1 more source