Results 61 to 70 of about 19,740 (298)

A Concept of a Digital and Traceable Manufacturing Documentation Based on Formalized Process Description Applied on Composite Aircraft Moveable

open access: yesAdvanced Engineering Materials, EarlyView.
The documentation of component manufacture has become an essential part of today's production processes, especially for the analysis and optimization of production or component design with regard to structural performance, economic efficiency, and sustainability.
Björn Denker   +4 more
wiley   +1 more source

Broadband Equal Power Divider

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper presents the design of broadband two way equal power divider in microstrip medium with defected ground structure suitable for broadband communication systems.
D. Packiaraj, M. Ramesh, A. T. Kalghatgi
doaj   +1 more source

RFID Tag Design Using Spiral Resonators and Defected Ground Structure [PDF]

open access: yesRadioengineering, 2017
This paper presents a simple generalized approach to design a compact chipless radio frequency identification tag. The proposed chipless tag encodes data into the spectral signature using a set of spiral resonators on both sides of substrate ...
M. Veysi   +3 more
doaj  

The Impact of High‐Productivity Processing on the Fatigue Failure of an Additive Manufactured Superalloy HAYNES 282

open access: yesAdvanced Engineering Materials, EarlyView.
The low cycle fatigue life of additive manufactured HAYNES® 282® superalloy was investigated for conventional and high‐productivity processing: samples of the former lasted 1400–1700 cycles, while samples of the latter failed at ~ 1200 cycles, at 760 °C and 1% strain.
Abdul Shaafi Shaikh   +3 more
wiley   +1 more source

Study on effect of rectangular DMS and DGS on 4 and 8 elements rectangular microstrip linear array antenna

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
In this experimental study a novel design has been developed to improve the antenna parameters in terms of impedance bandwidth and radiation properties. A 4-element rectangular array antenna (refereed as antenna 1) operating in the range of 10 to 16 GHz ...
S L Mallikarjun   +2 more
doaj   +1 more source

Design and analysis of defected ground structure transformer for dual-band antenna

open access: yesThe 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

Filter Designs Based on Defected Ground Structures

open access: yes, 2022
This chapter concentrates on the filter structures using Defected Ground Structures (DGS). Initially, this chapter discusses the limitations of Electromagnetic Band Gap (EBG) structures and the development of DGS structure from EBG structure. DGS is an area of increasing interest in EBG technology.
openaire   +2 more sources

High Q defected ground structures in grounded coplanar waveguide

open access: yesElectronics Letters, 2012
The correlation between the placement of spiral defected ground structures in each ground plane of a grounded coplanar waveguide and the corresponding frequency response are investigated. S-parameters and current density plots from an EM-based simulation study are examined to understand this relationship.
D.B. Schlieter, R.M. Henderson
openaire   +1 more source

Smectic Order in Double-Twist Cylinders [PDF]

open access: yes, 1997
I propose a double-twist texture with local smectic order, which may have been seen in recent experiments. As in the Renn-Lubensky TGB phase, the smectic order is broken only through a lattice of screw dislocations. A melted lattice of screw dislocations
Kamien, Randall D.
core   +2 more sources

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh   +6 more
wiley   +1 more source

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