Results 51 to 60 of about 61,537 (311)
Advanced Functional Materials, EarlyView.ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source
Performance improvement of slot antenna with metamaterial for modern wireless communication
Results in EngineeringA slot antenna has been widely used for multifunction in modern wireless communication technologies such as WLAN, WiMAX, IoT, and GSM. Generally, slot antennas can operate in wideband.
Maitree Tamma +4 more
doaj +1 more source
International Journal of Antennas and Propagation, 2017 In this paper, a compact frequency reconfigurable circular patch antenna with an arc-shaped slot loaded in the ground layer is proposed for multiband wireless communication applications.
Yao Chen +6 more
doaj +1 more source
Compact Circularly Polarized Patch Antenna Using a Composite Right/Left-Handed Transmission Line Unit-Cell [PDF]
, 2013 A compact circularly polarized (CP) patch antenna using a composite right/left-handed (CRLH) transmission line (TL) unit-cell is proposed. The CRLH TL unit-cell includes a complementary split ring resonator (CSRR) for shunt inductance and a gap loaded ...
Gao, X. J. +4 more
core +1 more source
Planar Slot-Patch Antenna [PDF]
31st European Microwave Conference, 2001, 2001 This paper discusses investigations of leaky wave radiation from the slotline made on a low permittivity substrate. New findings on the field distribution of the space leaky wave propagating on a slotline with a wide slot are presented. The design of the antenna and its measured parameters are introduced, along with practical experience acquired ...
Jan Zehentner +3 more
openaire +1 more source
Advanced Functional Materials, EarlyView.Self‐assembled monolayers (SAMs) are promising hole‐transporting materials for organic photovoltaics (OPVs), but suffer from self‐aggregation and poor large‐area uniformity. We find that interfacial modification using nicotinic hydrazide can eliminate the residual SAM aggregates by forming energetically favorable complexes, yielding uniform SAM.
Seongwon Yoon +10 more
wiley +1 more source
Design of Circular Printed Slot Antenna for Multiband Wireless Communication Applications [PDF]
Engineering and Technology Journal, 2014 In this paper, a printed antenna with circular slot is presented as a candidate for use in multiband wireless communication applications. The slot structure of the proposed antenna is with a circular slot structure. A smaller annular conducting ring with
Mehde M. Al-Shimmary
doaj +1 more source
A Reconfigurable Radiation Pattern Annular Slot Antenna [PDF]
, 2016 This paper contemplate a theoretical analysis of a pattern reconfigurable antenna using annular slot antenna operating in low frequency. A shorting pin is inserted to allow the annular slot antenna to have an omnidirectional radiation pattern like a ...
Aziz, NA, Nilavalan, R, Radhi, A
core +1 more source
Rectangular Slot Array Antenna
Applied Computational Electromagnetics Society, 2020 Slot antenna elements are quite popular for use in flat-panel arrays, due to their compactness and relatively large bandwidth. According to Babinet’s Principle, slots and dipoles are duals in performance. Therefore, a vertically placed slot is horizontally polarized and a horizontally placed slot is vertically polarized.
Elvis J. Trinidad Garcia +2 more
openaire +1 more source