Results 51 to 60 of about 32,533 (358)
Performance of hemielliptic dielectric lens antennas with optimal edge illumination [PDF]
, 2009 The role of edge illumination in the performance of compact-size dielectric lens antennas (DLAs) is studied in accurate manner using a highly efficient algorithm based on the combination of the Muller boundary integral equations and the method of ...
Boriskin, A. V. +2 more
core +3 more sources
Advanced Engineering Materials, EarlyView.EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk +7 more
wiley +1 more source
A novel technique for wide-field polarimetry with a radiotelescope array [PDF]
, 2005 We report the use of the Australia Telescope Compact Array (ATCA) to conduct polarimetric observations of the sky at 5 GHz. The ATCA is normally operated as an interferometer array, but these observations were conducted in a split array mode in which the
Carretti, E. +2 more
core +3 more sources
Optimized Cassegrain Antenna with its Feed Placed Behind the Main Reflector and investigating the Effects of the Feed Slant Ratio on its Characteristics [PDF]
, 2021 Alireza Sharifi
openalex +1 more source
Advanced Engineering Materials, EarlyView.A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain +7 more
wiley +1 more source
Antenna simulator permits preinstallation system checkout [PDF]
, 1966 Antenna simulator provides for evaluation checkout of corporate feeds, monopulse sum-and-difference networks, etc., in a shielded environment prior to system checkout on an antenna pattern range.
Elia, A. D., Schmidt, R. F.
core +1 more source
A slot antenna array with low mutual coupling for use on small mobile terminals [PDF]
, 2011 In order to take full advantage of the benefits to be obtained by using MIMO techniques for mobile communications, it is necessary to use an antenna array which is both compact and also has low mutual coupling between ports.
Dumanli, S, Paul, DL, Railton, CJ
core +2 more sources
Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsThis paper presents the parameterization of the structure of a miniaturized exponential UWB TEM horn antenna and its effect on the matching impedance and directivity. In addition, a microstrip balun that feeds the antenna was proposed in order to improve
Héctor Dave Orrillo Ascama +4 more
doaj +1 more source
Multi‐mode dual‐polarised cavity backed patch antenna array for 5G mobile devices
IET Microwaves, Antennas & Propagation, 2021 This paper proposes a dual‐polarised cavity backed patch antenna for next generation phased arrays for mobile handsets. The antenna exhibits multi‐band performance, allowing to cover the 5G bands n257 (26.5–29.5 GHz), n258 (24.25–27.5 GHz), n261 (27.5–28.
Carla Di Paola +3 more
doaj +1 more source