Results 31 to 40 of about 17,188 (287)
ENHANCED RADIATION PATTERNS OF A WIDE-BAND STRIP-FED DIELECTRIC RESONATOR ANTENNA [PDF]
Jordanian Journal of Computers and Information Technology, 2015 A simple wide-band rectangular dielectric resonator antenna (DRA) is designed for the X-band and Ku-band applications. The DRA is excited by a vertical strip placed on the middle of the DRA wide side wall through a coaxial probe attached to a finite size
Asem S Al-Zoubi
doaj +1 more source
Continuous Characterization of Permittivity over a Wide Bandwidth Using a Cavity Resonator [PDF]
Journal of Electromagnetic Engineering and Science, 2020 We examine a rectangular cavity resonator method to accurately characterize the complex permittivity of dielectric materials over a wide frequency range of 1–5 GHz by exploiting the fundamental mode and higher-order TE(1,0,l) modes.
Rehab S. Hassan +3 more
doaj +1 more source
Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance
Advanced Functional Materials, EarlyView.A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer +2 more
wiley +1 more source
Miniaturized top-metallized rectangular dielectric resonator antenna [PDF]
, 2018 In this paper, a modal analysis of a rectangular dielectric resonator antenna (DRA), with unconventional boundary conditions, is carried out. Analytical equations of the fields inside the resonator and simulations are presented, showing that if a ...
Herraiz Martínez, Francisco Javier +2 more
core
A photonic-crystal selective filter [PDF]
, 2017 A highly selective filter is designed, working at 1.55 μm and having a 3-dB bandwidth narrower than 0.4 nm, as is required in Dense Wavelength Division Multiplexed systems.
Pajewski, Lara, Schettini, Giuseppe
core +1 more source
IEEE Access, 2020 In this study a quintuple band rectangular dielectric resonator antenna (RDRA) with a small frequency ratio and small size of 30 mm × 30 mm × 9.813 mm is introduced. The proposed RDRA covers the frequency bands of WLAN (2.4/5.2 GHz), WiMAX (
Asmaa I. Afifi +4 more
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2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics
Advanced Functional Materials, EarlyView.2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit +5 more
wiley +1 more source
Wideband P-Shaped Dielectric Resonator Antenna [PDF]
, 2013 A novel P-shaped dielectric resonator antenna (DRA) is presented and investigated for wideband wireless application. By using P-shaped resonator, a wideband impedance bandwidth of 80% from 3.5 to 8.2 GHz is achieved.
Danesh, S. +3 more
core
Microwave method for high-frequency properties of graphene [PDF]
, 2015 Graphene is a remarkable material, which is yet to make the transition from unique laboratory phenomenon to useful industrial material. One missing element in the development process is a quick method of quality control of the electrical properties of ...
Chen, J, Gallop, J, Hao, L, Liu, Q
core +1 more source
Evaluation of Microwave Characterization Methods for Additively Manufactured Materials
Designs, 2019 Additive manufacturing (AM) has become more important and common in recent years. Advantages of AM include the ability to rapidly design and fabricate samples much faster than traditional manufacturing processes and to create complex internal geometries.
Chih-Kuo Lee +10 more
doaj +1 more source