Results 41 to 50 of about 771,291 (252)
Substrate Integrated Waveguide Fed Cavity Backed Slot Antenna for Circularly Polarized Application
International Journal of Antennas and Propagation, 2013 A novel planar low-profile cavity-backed slot antenna for circularly polarized applications is presented in this paper. The low-profile substrate integrated waveguide (SIW) cavity is constructed on a single PCB substrate with two metal layers on the top ...
Xiao Hong Zhang +2 more
doaj +1 more source
Heliyon, 2023 We investigated the feasibility of designing and fabricating novel broadband radiofrequency (RF) absorbers for use in cavity-backed antennas. Fabricating the absorber involved a multi-material additive manufacturing (AM) approach that combined two ...
Ellen Gupta +4 more
doaj +1 more source
Cavity-backed dual linear polarization sinuous antenna with integrated microstrip balun feed
, 2015 In this work a low-profile cavity-backed dual linear polarized sinuous antenna with integrated baluns has been studied. The antenna was chosen to operate from 1.6 GHz to 7 GHz having an input impedance of 250 ω with dual linear polarization.
Ibrahim M. Alotaibi +5 more
core +1 more source
Additively manufactured high gain cavity backed Ku-band slot antenna
, 2021 Cavity backed slot antenna covering entire Ku-band satellite communications frequency band (10.5-14.5 GHz) is designed and manufactured using both 3D printing and traditional metal milling for performance comparison.
Asci, Yavuz +3 more
core +1 more source
Advanced Functional Materials, EarlyView.Elastomeric micropillars bend under contact loading, sliding microscale devices out of alignment during transfer printing. A hybrid PDMS stamp embeds a high‐modulus skeleton within each pillar while retaining a compliant contact surface. The reinforcement confines pillar deformation, suppressing interfacial sliding and preserving array registration on ...
Seol Ahn +8 more
wiley +1 more source
Ultra-wideband circularly polarized cavity-backed crossed-dipole antenna
Scientific Reports, 2022 This letter demonstrates an ultra-wideband circularly polarized cavity-backed crossed-dipole antenna. It consists of a modified crossed-dipole and a modified cavity.
Jun Fan +3 more
doaj +1 more source
Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes
Advanced Materials, EarlyView.Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti +11 more
wiley +1 more source
Laser‐Assisted Phase Engineering of 2D MoS2 for Efficient Solution‐Processed Electronics
Advanced Materials, EarlyView.Here, local laser‐assisted phase transition from solution‐processed phase‐pure 1T′ to 2H MoS2 is shown to critically depend on the irradiation atmosphere. While processing in air leads to damaged insulating regions, inert conditions yield semiconducting 2H domains, enabling direct field‐effect transistor patterning with optimized lateral 1T′‐2H MoS2 ...
Anna Zhuravlova +10 more
wiley +1 more source
Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies
Advanced Materials, EarlyView.In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim +5 more
wiley +1 more source
Cavity-Backed Angled-Dipole Antennas for Millimeter-Wave Wireless Applications
International Journal of Antennas and Propagation, 2016 A cavity-backed angled-dipole antenna is proposed for millimeter-wave wireless applications. The angled-dipole radiator is built on both sides of an RT/Duroid 5880 substrate (εr=2.2) and fed by a parallel-plate transmission line.
Son Xuat Ta, Ikmo Park
doaj +1 more source