Results 71 to 80 of about 51,777 (301)
Wideband patch antenna through introducing co‐plane terminal
IET Microwaves, Antennas & PropagationWideband operation is a crucial topic in patch structure research. Various wideband methods have been developed for patch antennas. However, some of the key benefits of patch antennas, such as semi‐space radiation and easy fabrication, are degraded.
Boyu Sima +7 more
doaj +1 more source
Experimental study of spiral antennas with various additional deceleration options
Физика волновых процессов и радиотехнические системыBackground. The work is aimed at the development and research of flat spiral antennas with additional slowdown. The use of slowdown structures allows to change the operating frequency range of antennas and the electrodynamic characteristics of antennas ...
Dmitrij P. Tabakov, Mikhail A. Malakhov
doaj +1 more source
Antenna design for a massive multiple input environmental sensor network
Digital Communications and Networks, 2016 This article describes the design and simulation of a pair of antennas on a small PCB with minimal coupling for a massive multiple input sensor network. The two antennas are planar inverted-F antennas (PIFA) that are fed with microstrip feed lines.
J. Craig Prather +4 more
doaj +1 more source
Optimal Planar Electric Dipole Antenna
, 2019 Considerable time is often spent optimizing antennas to meet specific design metrics. Rarely, however, are the resulting antenna designs compared to rigorous physical bounds on those metrics. Here we study the performance of optimized planar meander line
Capek, Miloslav +6 more
core +2 more sources
Asymptotic extraction approach for antennas in a multilayered spherical media [PDF]
, 2010 An efficient algorithm is introduced to enhance the convergence of dyadic Green's functions (DGF) in a layered spherical media where asymptotic expressions have been developed. The formulated expressions involve an infinite series of spherical eigenmodes
Khamas, S.K.
core +1 more source
Advanced Engineering Materials, EarlyView.A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley +1 more source
Fabry-Perot Cavity Leaky Wave Antennas with Tunable Features for Terahertz Applications
Condensed Matter, 2020 Terahertz (THz) radiation is a very appealing band of the electromagnetic spectrum due to its practical applications. In this context, the THz generation and manipulation is an essential part of the technological development.
Silvia Tofani, Walter Fuscaldo
doaj +1 more source
Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition
Advanced Engineering Materials, EarlyView.A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley +1 more source
Design of a novel dual: band planar inverted F - antenna for mobile radio applications
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsThe design of a novel compact dual band PIFA (Planar Inverted F-Antenna) as an embedded antenna is reported in this paper for mobile radio applications.
N. Chattoraj +4 more
doaj +1 more source