Results 121 to 130 of about 84,127 (307)
A Tunable MIMO Antenna With Dual-Port Structure for Mobile Phones
IEEE Access, 2019 In this paper, we develop a new frequency reconfigurable dual-port antenna that has two independent signal feed ports in a single antenna element for multiple-input multiple-output capable mobile handsets.
Won-Woo Lee, Beakcheol Jang
doaj +1 more source
Compact Dual-Band Antenna with Paired L-Shape Slots for On- and Off-Body Wireless Communication. [PDF]
Sensors (Basel), 2021 Ahmad S, Ghaffar A, Hussain N, Kim N.
europepmc +1 more source
Man-pack antenna at X-band [PDF]
, 2013 In this paper a low cost man-pack antenna for satellite communications at X band is presented.
Inclan Alonso, Jose Manuel +1 more
core
Advanced Functional Materials, EarlyView.This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger +10 more
wiley +1 more source
Investigation into the design of ultra-wideband (UWB) and multi-band antennas [PDF]
, 2006 University of Technology, Sydney. Faculty of Engineering.The rapid development of high speed wireless communications as well as other applications such as microwave imaging place extraordinary demands on spectrums for which ultra-wideband (UWB) and multi-
Qiu, X
core
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Semi-Automatic Design of Dual-Band End-Fed Antennas for Digital Antenna Arrays
Известия высших учебных заведений России: РадиоэлектроникаIntroduction. The topic of implementing a dual-band mode of operation for director dipole antennas is represented by a wide range of works, almost all of which are dedicated to studying the properties of a classic dipole.
S. A. Alekseytsev +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr +7 more
wiley +1 more source
Dual-Band Shared-Aperture Antenna with Pattern and Polarization Diversity
Applied SciencesThis paper proposes a dual-band co-aperture antenna, which covers 2.09–11.61 GHz (9.52 GHz, 138.9%) and 21.6–29.6 GHz (8 GHz, 31%). The overall size of the proposed antenna is 0.76 × 0.76 × 0.37 λ03, where λ0 is the free space wavelength of the lowest ...
Jia Cheng +3 more
doaj +1 more source
Double Helical Plasmonic Antennas
Advanced Functional Materials, EarlyView.Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin +7 more
wiley +1 more source