Results 41 to 50 of about 72,244 (304)
Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma
Advanced Engineering Materials, EarlyView.The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie +4 more
wiley +1 more source
RF Performance of Layer-Structured Broadband Passive Millimeter-Wave Imaging System
International Journal of Antennas and Propagation, 2016 Low profile and simple configuration are advantageous for RF module in passive millimeter-wave imaging system. High sensitivity over broad operation bandwidth is also necessary to detect right information from weak signal.
Kunio Sakakibara +3 more
doaj +1 more source
Broadband modified turnstile antenna Patent [PDF]
, 1970 Broadband modified turnstile antenna for use in space tracking and ...
Lemson, P. H.
core +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
Broadband Circularly Polarized Filtering Antennas [PDF]
IEEE Access, 2018 This paper consists of two parts. The first part presents a review of the recent development in broadband circularly polarized filtering antennas. The second part presents a novel design of broadband integrated filtering antenna based on eighth-mode SIW (EMSIW) resonators for rectenna applications. This work has three main novel contributions.
Yazhou Dong +10 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Broadband choke for antenna structure [PDF]
, 1969 Broadband chokes and absorbers to reduce spurious radiation patterns of antenna array caused by support ...
Bishop, O. L., Bolt, C. A., Jr.
core +1 more source
A high-gain cell enhancer [PDF]
, 1992 A cell enhancer that offers a combination of high-grain and high output power with extremely good linearity is described. The prototype repeater offers an active gain of at least 100 dB over a bandwidth of several megahertz.
McGeehan, JP, Slingsby, WT
core +2 more sources
Advanced Functional Materials, EarlyView.This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger +11 more
wiley +1 more source
UHF SATCOM broadband CP antenna: moxon type bent-dipoles over a ground plane [PDF]
, 2011 In this paper, we investigate and compare two different antenna types for UHF SATCOM applications; proposed Moxon type (bent dipole) and conventional egg beater (loop) antennas in terms of antenna performance and physical size. Bent dipole and egg beater
Niver, Edip +2 more
core