Results 71 to 80 of about 19,740 (298)

An Overview of Defected Ground Structure with Practical Application of Defected Ground Structure Bandpass Filter in Energy Harvester Circuit

Research Journal of Applied Sciences, Engineering and Technology, 2014
The aim of the study is to practically implement the Defected Ground Structure (DGS) based microstrip bandpass filter in an energy harvester circuit. DGS is widely used to bring about an enhancement in the characteristics of microwave circuits. The study of DGS is derived from the concept of Photonic/electromagnetic Band Gap (PBG) structures but it is ...
M.T. Khan, M.A. Zakariya, Z. Baharudin, R. Ibrahim, S.S.B. Hong, J.J. Adz   +5 more
openaire   +1 more source

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Compact Defected Ground Structure Microstrip Patch Antenna for Wi-Fi Applications

Acta Technica Jaurinensis
In recent years microstrip patch antennas having minute size is an exciting topic for many researchers and design engineers. In this paper a novel miniaturized microstrip patch antenna for Wi-Fi applications is proposed.
Dipak Omprakash Sakle, Manish Deshmukh
doaj   +1 more source

A Reconfigurable Filter Using Defected Ground Structure for Wideband Common-Mode Suppression

IEEE Access, 2019
A wideband common-mode (CM) suppression reconfigurable filter is proposed for high-speed all-pass differential circuits. The filter adopts three varactor-loaded compact defected ground structures (DGSs) to achieve continuous reconfigurability in its ...
Zhibin Zeng, Shengjian Jammy Chen, Christophe Fumeaux   +2 more
doaj   +1 more source

Design and fabrication of a novel multilayer bandpass fi lter with high-order harmonics suppression using parallel coupled microstrip fi lter

ETRI Journal, 2022
This study presents a novel multilayer structure of parallel coupled-line bandpass filtercentered at 2.42 GHz with a fractional bandwidth value of approximately 19.4%.
Esmaeil Fathi, Farbod Setoudeh, Mohammad Bagher Tavakoli   +2 more
doaj   +1 more source

Quantum dislocations: the fate of multiple vacancies in two dimensional solid 4He

, 2010
Defects are believed to play a fundamental role in the supersolid state of 4He. We have studied solid 4He in two dimensions (2D) as function of the number of vacancies n_v, up to 30, inserted in the initial configuration at rho = 0.0765 A^-2, close to ...
Andreev A F, Balibar S, D E Galli, E Vitali, L Reatto, M Rossi, Rossi M, Shibayama Y, Vitali E Rossi M Reatto L Galli D E   +8 more
core   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

Advanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

Bose Einstein Condensation in solid 4He [PDF]

, 2005
We have computed the one--body density matrix rho_1 in solid 4He at T=0 K using the Shadow Wave Function (SWF) variational technique. The accuracy of the SWF has been tested with an exact projector method.
A. F. Andreev, D. E. Galli, L. Reatto, M. Rossi, W. M. Saslow   +4 more
core   +1 more source

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source

Harmonic-Rejection Compact Bandpass Filter Using Defected Ground Structure for GPS Application

Active and Passive Electronic Components, 2014
A miniaturized bandpass filter (BPF) using defected ground structure (DGS) resonator with the characteristic of harmonic rejection is developed in this paper.
Haiwen Liu, Baoping Ren, Xiang Xiao, Zhichong Zhang, Shen Li, Suping Peng   +5 more
doaj   +1 more source