Results 51 to 60 of about 395,229 (288)

Design of Multiband Balanced Folded Dipole Antenna Based on a Dual-Arm Structure for Mobile Handsets [PDF]

, 2008
YesIn this paper, a balanced antenna for mobile handset applications with enhanced bandwidth performance, that covers four bands (GSM1800, GSM1900, UMTS and 2.4-GHz WLAN), is investigated.
Abd-Alhameed, R.A., Zhou, D., See, Chan H., Abd-Alhameed, Raed, See, C.H., Excell, P.S., Excell, Peter S., Zhou, Dawei   +7 more
core   +2 more sources

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Antenna representation in two-port network scattering parameter [PDF]

, 2011
This paper proposes a representation of antenna in two-port network s-parameter, by exploiting the analogy between the antenna and a two-port network, to produce a suitable method for evaluating antennas in system and circuit simulation.
Ghassemlooy, Zabih, Rahman, Tharek, Tharek Abdul Rahman, Razali Ngah, Prakoso, Teguh, Teguh Prakoso, Ngah, Razali, Zabih Ghassemlooy, Abd. Rahman, Tharek   +8 more
core   +1 more source

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

Advanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw, Zhanhong Yang, Anne Ladegaard Skov, Magdalena Skowyra   +3 more
wiley   +1 more source

Multiband circularly polarised CubeSat antenna operating in S, C, X, Ku, K, and Ka bands

IET Microwaves, Antennas & Propagation
A novel design of a high‐frequency multiband with a circular polarisation antenna based on a four‐patch antenna system consolidated with an Archimedean spiral antenna for CubeSat applications.
Hesham M. Elkady, Haythem H. Abdullah, Saad M. Darwish   +2 more
doaj   +1 more source

Simulation and manufacturing of a miniaturized exponential UWB TEM horn antenna for UWB radar applications

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This 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, Roberto Kenji Hiramatsu, Alexandre M. de Oliveira, Carlos R. P. Dionisio, Sergio Takeo Kofuji   +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, Kun Zhao, Gert F. Pedersen, Shuai Zhang   +3 more
doaj   +1 more source

Morphology, Transport, and Dynamics of Protein Adsorption in Open‐Cell Metal Foam

Advanced Engineering Materials, EarlyView.
Stainless steel (SS) open‐cell foams are shown to adsorb more protein per unit area than previously reported 316L SS and chromium oxide surfaces under static and flow conditions. An integrated approach combining 3D pore imaging, flow simulation, and protein adsorption experiments characterizes the foam’s performance.
Chinmaya Prerana Inguva, Joseph Lavoie, Afsaneh Rabiei   +2 more
wiley   +1 more source

A Passive Harmonic Tag for Humidity Sensing

International Journal of Antennas and Propagation, 2014
This paper describes a passive harmonic tag for radio frequency identification (RFID) and wireless sensor applications. The tag uses a dual polarized UHF patch antenna as an input antenna.
Antonio Lazaro, Ramon Villarino, David Girbau   +2 more
doaj   +1 more source

SANTANA- Smart Antenna Terminal Design [PDF]

, 2005
This project is embedded in SANTANA (Smart Antenna Terminal) project. The project goal is to design a Ka-band circularly polarized antenna radiator for the receiver SANTANA system.
Liu, Ying, Ying, Liu
core