Results 61 to 70 of about 14,861 (353)
A Wideband High-Gain All-Metal Antenna under Quad Resonances Realized by Folding a Simple Patch [PDF]
Journal of Electromagnetic Engineering and ScienceThis paper presents a novel wideband antenna with a simple structure comprising an integrated microstrip patch antenna (MPA) and three shorted microstrip patch antennas (SMPAs).
Mohammad Hadi Moradi Aredekani +2 more
doaj +1 more source
MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance
Advanced Functional Materials, EarlyView.Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley +1 more source
A Novel Planar Fractal Antenna with CPW-Feed for Multiband applications [PDF]
, 2013 In this paper, a multiband antenna using a novel fractal design is presented. The antenna structure is formed by inscribing a hexagonal slot within a circle.
Joseph, S. +3 more
core +1 more source
On the Bandwidth of High-Impedance Frequency Selective Surfaces
, 2009 In this letter, the bandwidth of high-impedance surfaces (HISs) is discussed by an equivalent circuit approach. Even if these surfaces have been employed for almost 10 years, it is sometimes unclear how to choose the shape of the frequency selective ...
Costa, Filippo +2 more
core +1 more source
Three‐dimensional Antimony Sulfide Based Flat Optics
Advanced Functional Materials, EarlyView.This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang +18 more
wiley +1 more source
THREE ANTENNAS DESIGN USED BY ULTRA-WIDEBAND WIRELESS SYSTEMS
Diyala Journal of Engineering Sciences, 2015 As there are many challenges in indoor and outdoor wireless propagation, high gain and sensitive antenna design plays crucial role in ultra wideband (UWB) small size systems.
RASHID A. FAYADH
doaj
A Tri-band-notched UWB Antenna with Low Mutual Coupling between the Band-notched Structures [PDF]
, 2013 A compact printed U-shape ultra-wideband (UWB) antenna with triple band-notched characteristics is presented. The proposed antenna, with compact size of 24×33 mm2, yields an impedance bandwidth of 2.8-12GHz for ...
Hong, J. S., Luo, C. M., Xiong, H.
core +1 more source
Reconfigurable wideband patch antenna for cognitive radio [PDF]
, 2009 Cognitive radio communication is envisaged to be a new paradigm of methodologies for enhancing the performance of radio communication systems through the efficient utilization of radio spectrum.
AbuTarboush, H.F. +9 more
core +2 more sources
U-Slotted Wideband Microstrip Patch Antenna for Ka Band and mmW 5G Applications [PDF]
, 2022 Touko Tcheutou Stephane Borel +1 more
openalex +1 more source
Advanced Functional Materials, EarlyView.Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou +17 more
wiley +1 more source