Results 91 to 100 of about 14,554 (296)
Design and analysis of defected ground structure transformer for dual-band antenna
The Journal of Engineering, 2014 This study presents a novel dual-band antenna design methodology utilising a dual-frequency impedance transformer with defected ground structure (DGS).
Wai-Wa Choi +4 more
doaj +1 more source
Design of Multi-Antenna System for UMTS Clamshell Mobile Phones with Ground Plane Effects Considerations [PDF]
, 2014 In this paper, the influence of the ground plane dimensions on the port-to-port isolation of two closely-spaced Universal Mobile Telecommunications System (UMTS) Planar Inverted-F Antennas (PIFAs) with and without neutralization line is first presented ...
Addaci, R. +4 more
core +2 more sources
Geometric background charge: dislocations on capillary bridges
, 2012 Recent experiments have shown that colloidal crystals confined to weakly curved capillary bridges introduce groups of dislocations organized into `pleats' as means to relieve the stress caused by the Gaussian curvature of the surface.
Irvine, William, Vitelli, Vincenzo
core +1 more source
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
AN OVERVIEW ON DEFECTED GROUND STRUCTURE [PDF]
Progress In Electromagnetics Research B, 2008 Li Hong Weng +3 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
A good conversion loss and a very high LO-to-RF isolation of 24-GHz single balanced mixer for RF front-end receiver [PDF]
Maejo International Journal of Science and Technology, 2011 This work describes the design, analysis and fabrication of a 24-GHz microwave single balanced down-conversion mixer based on Schottky diode, hybrid ring coupler and a wide and deep stopband low-pass filter (LPF).
Mouloud Challal
doaj
Advanced Engineering Materials, EarlyView.Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek +5 more
wiley +1 more source
A Low Correlation and Mutual Coupling MIMO Antenna
IEEE Access, 2019 A new two-element multiple-input multiple-output (MIMO) antenna with low correlation and high port isolation is presented. First, two hybrid electromagnetic band gap (EBG) structures with the ability to support and stop surface wave propagation ...
Ying Liu +3 more
doaj +1 more source
Favoured Local Structures in Liquids and Solids: a 3D Lattice Model
, 2015 We investigate the connection between the geometry of Favoured Local Structures (FLS) in liquids and the associated liquid and solid properties. We introduce a lattice spin model - the FLS model on a face-centered cubic lattice - where this geometry can ...
Harrowell, Peter, Ronceray, Pierre
core +2 more sources