Results 21 to 30 of about 3,395 (261)

Spectral Characteristics of the Double-Folded Slot Antennas with Cold-Electron Bolometers for the 220/240 GHz Channels of the LSPE Instrument

open access: yesApplied Sciences, 2021
We present the results of the experimental and theoretical study of the resonant properties and noise of a single cell of a receiving system based on cold-electron bolometers (CEB) with a double-folded slot antenna and coplanar lines.
Leonid S. Revin   +10 more
doaj   +1 more source

Designing Slot Antennas in Finite Platforms Using Characteristic Modes

open access: yesIEEE Access, 2018
In this paper, the application of the Theory of Characteristic Modes for the design of narrow-in-width open slot antennas embedded in finite platforms is investigated.
Nora Mohamed Mohamed-Hicho   +3 more
doaj   +1 more source

3D Printed Waveguide Slot Array Antennas

open access: yesIEEE Access, 2016
Waveguide slot array antennas can have high gain, since the power distribution network (waveguide) has low loss, enabling a large aperture size. Rapid response to requirements for frequency, gain, and skew angle inspired a search for an alternative to ...
Gregory Peter Le Sage
doaj   +1 more source

Broadband HMSIW antenna using a demi hexagonal ring slot for X-band application

open access: yesJurnal Ilmiah SINERGI
Microstrip antennas offer several advantages, including small size, easy fabrication, controllable polarity and radiation patterns, and easy integration with other components.
Dian Widi Astuti   +4 more
doaj   +1 more source

Ultrawide Bandwidth Optomechanical Magnetometry Using Flux Concentration

open access: yesAdvanced Functional Materials, EarlyView.
High‐permeability flux concentrators enable ultrawide‐bandwidth chip‐scale optomechanical magnetometry by exploiting magnetic nonlinearity to up‐convert low‐frequency fields to the mechanical resonance, where sensitivity is optimal. This enables flat wideband operation over more than four orders of magnitude, from tens of kilohertz to sub‐hertz ...
Benjamin J. Carey   +6 more
wiley   +1 more source

Ultra Wideband (UWB) Multiple Input and Multiple Output (MIMO) Antenna Design : A Review

open access: yesAndalas Journal of Electrical and Electronic Engineering Technology, 2023
Since the Federal Communication Commission (FCC) issued a license for the 3.1 – 10.6 GHz frequency spectrum for unlicensed radio applications, many papers have been published regarding ultrawideband (UWB) antenna design.
Firdaus Firdaus   +2 more
doaj   +1 more source

Semiconducting Polymers Post‐Functionalized With Ureido‐Pyrimidinone for Robust Stretchable Transistors

open access: yesAdvanced Functional Materials, EarlyView.
The design of intrinsically robust stretchable semiconducting polymers was achieved through OTBS‐mediated post‐functionalization of PDPP2T side chains with UPy units, generating dual hydrogen‐bonding motifs comprising weaker urethane linkages and strong quadruple UPy interactions along the long alkyl side chain, which is crucial for achieving desirable
Dinda Bazliah   +7 more
wiley   +1 more source

A Lightweight, 3D‐Printable, Low‐Cost, “One‐Click” Dorsal Skin Window for High‐Quality Long‐Term Multimodal Subcutaneous Tumor Imaging

open access: yesAdvanced Healthcare Materials, EarlyView.
An innovative, lightweight 3D‐printed skinfold chamber system is presented for long‐term intravital imaging. This affordable, biocompatible platform simplifies surgical implantation and allows high‐resolution, multimodal visualization of the tumor microenvironment for up to four weeks.
Iván Cortés Domínguez   +9 more
wiley   +1 more source

Performance improvement of slot antenna with metamaterial for modern wireless communication

open access: yesResults in Engineering
A 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

open access: yesInternational 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

Home - About - Disclaimer - Privacy