Results 41 to 50 of about 41,230 (298)
Circularly-polarised cavity-backed wearable antenna in SIW technology [PDF]
, 2017 This study presents a circularly-polarised substrate-integrated waveguide (SIW) antenna implemented using a textile substrate and operating at 2.45GHz, in the industrial, scientific, and medical frequency band.
Agneessens, Sam +3 more
core +1 more source
Advanced Healthcare Materials, EarlyView.A two‐phase workflow (OFAT screening followed by central composite design) maps how processing variables tune PFCE‐PLGA nanoparticle size, dispersity, surface charge, loading, and 19F‐MRI signal. In situ, time‐resolved synchrotron SAXS tracks albumin‐corona growth on intact dispersions and reveals PFCE‐dependent adsorption pathways.
Joice Maria Joseph +11 more
wiley +1 more source
Performance improvement of slot antenna with metamaterial for modern wireless communication
Results in EngineeringA slot antenna has been widely used for multifunction in modern wireless communication technologies such as WLAN, WiMAX, IoT, and GSM. Generally, slot antennas can operate in wideband.
Maitree Tamma +4 more
doaj +1 more source
Ultra-Wideband Antennas for Wireless Communication Applications
International Journal of Antennas and Propagation, 2019 A review paper concerning wide-band and ultra-wideband (UWB) antennas used for wireless communication purposes in terms of the materials as well as a numerical analysis is presented.
Tale Saeidi +4 more
doaj +1 more source
IET Microwaves, Antennas & Propagation, 2023 This article presents a wideband circularly polarised (CP) antenna array using a miniaturised double box branch‐line coupler. This was achieved by creating a slow wave structure by introducing open‐circuit stubs on the inside arms of the branch‐line ...
Bal S. Virdee, Tohid Aribi, Tohid Sedghi
doaj +1 more source
Journal of Radiation Research and Applied Sciences, 2022 The microstrip patch antenna has been successfully used in modern wireless communication systems including the fifth generation (5G) applications. The focus of this paper is on the high-band millimeter waves of the 5G, particularly the 26 and 28 GHz as ...
Mouaaz Nahas
doaj +1 more source
Wideband and UWB antennas for wireless applications. A comprehensive review [PDF]
, 2017 A comprehensive review concerning the geometry, the manufacturing technologies, the materials, and the numerical techniques, adopted for the analysis and design of wideband and ultrawideband (UWB) antennas for wireless applications, is presented. Planar,
Cicchetti, Renato +2 more
core +3 more sources
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Физика волновых процессов и радиотехнические системы, 2023 Background. Symmetric slot lines on a perfectly reflecting half-plane are good mathematical models for slot antennas on an ideal plane of finite dimensions, which in practice have a high gain and operate over a wide frequency band.
Eugeniy I. Nefyodov +2 more
doaj +1 more source
Highly efficient impulse-radio ultra-wideband cavity-backed slot antenna in stacked air-filled substrate integrated waveguide technology [PDF]
, 2018 An impulse-radio ultra-wideband (IR-UWB) cavity-backed slot antenna covering the [5.9803; 6.9989] GHz frequency band of the IEEE 802.15.4a-2011 standard is designed and implemented in an air-filled substrate integrated waveguide (AFSIW) technology for ...
Lemey, Sam +3 more
core +1 more source