Results 121 to 130 of about 2,076,516 (339)
A Compact Design of Planar Array Antenna with Fractal Elements for Future Generation Applications
, 2016 In this paper, a planar phased array fractal antenna for the future fifth generation (5G) applications is presented. The proposed array antenna is designed to operate at 22 GHz.
Pedersen, Gert Frølund +2 more
core
Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics
Advanced Materials, EarlyView.“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair +3 more
wiley +1 more source
Low Profile MIMO Diversity Antenna with Multiple Feed [PDF]
, 2011 A Compact low profile MIMO Diversity antenna system with multiple feeds with a size of 105mm*61.5mm is proposed. Multiple feeds are used to provide maximum power to antenna elements so that signal can propagate a long distance.
Waqas Ahmad +4 more
core
Aluminium Feeds for Reflector for NadirSAR
, 2018 With the long term aim of developing a NadirSAR quadrotor UAV system specialized for monitoring broad acre grain fields, a large aperture load bearing antenna to use as the main structural element was sort.
J. Le Kernec +3 more
core +1 more source
Advanced Materials, EarlyView.We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park +11 more
wiley +1 more source
DESIGN OF E-SHAPE RECONFIGURBLE MICROSTRIP ANTENNA FOR ULTRA WIDE BAND APPLICATIONS
Journal of Engineering and Sustainable Development, 2018 In this paper, a frequency and radiation reconfigurable microstrip antenna design is proposed for Ultra Wide Band application (UWB). The radiating patch was an E-shaped microstrip printed over an FR-4 substrate with a relative dielectric constant of 4.3,
Haydar Malik Abd-Alhadi +1 more
doaj
, 1972 The results of 7 months of study, tradeoffs, test design, and fabrication are presented for an effort to modify three ground stations in support of the ATS-F program. As a result of tests on the existing feed system of the Rosman No.
Mccall, B.
core
A novel Ultra-wideband all-metal Vivaldi antenna Phased Array Feeds research on FAST telescope
An ultra-wideband 7 * 8 Vivaldi antenna array design is simulated and optimized, and a 1 * 7 experimental prototype unit is produced in this paper. In the design process, all-metal Vivaldi antenna structure has been adopted, the feeding part is fed by a ...
Ma, Yue +3 more
core +1 more source
, 2018 : This paper describes the design of sinuous antenna reflector feeds using blended rational interpolation. The blended rational interpolation method is developed to interpolate a sparse set of high\u2010fidelity (HF) data while following the trends of a ...
Christophe Segers +7 more
core +1 more source
Advanced Materials, EarlyView.By designing a P/N‐ and π–π interacting biphenyl‐containing diol as hard segments but side groups, a strong, tough, fire‐extinguishing and self‐healing elastomer is developed, demonstrating a break strain of ∼2500%, a toughness of 379 MJ/m3 and a tensile strength of 46 MPa, as well as a healing efficiency of 95% (tensile strength) and 99% (break strain)
Yijiao Xue +11 more
wiley +1 more source