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Kortegolfcomponenten. --- Microwave circuits --- Microwave devices --- Semiconductors --- 621.37 --- 621.37 Technique of electric waves, electromagnetic waves, oscillations, pulses --- Technique of electric waves, electromagnetic waves, oscillations, pulses --- Crystalline semiconductors --- Semi-conductors --- Semiconducting materials --- Semiconductor devices --- Crystals --- Electrical engineering --- Electronics --- Solid state electronics --- Electronic apparatus and appliances --- Microwaves --- Circuits, Microwave --- Electronic circuits --- Materials --- Electromagnetic field --- Composant electronique --- Radiocommunication --- Onde uhf --- Microwave device

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A couple of decades have passed since the advent of electromagnetic metamaterials. Although the research on artificial microwave materials dates back to the middle of the 20th century, the most prominent development in the electromagnetics of artificial media has happened in the new millennium. In the last decade, the electromagnetics of one-, two-, and three-dimensional metamaterials acquired robust characterization and design tools. Novel fabrication techniques have been developed. Many exotic effects involving metamaterials and metasurfaces, which initially belonged in a scientist’s lab, are now well understood by practicing engineers. Therefore, it is the right time for the metamaterial concepts to become a designer’s tools of choice in the landscape of electronics, microwaves, and photonics. Answering such a demand, the book “Engineering Metamaterials” focuses on the theory and applications of electromagnetic metamaterials, metasurfaces, and metamaterial transmission lines as the building blocks of present-day and future electronic, photonic, and microwave devices.

History of engineering & technology --- evanescent field tunneling --- metamaterials --- mu-negative material --- epsilon-negative material --- split-ring-resonators --- waveguides --- spoof surface plasmon polariton (SSPP) --- metal hole arrays (MHA) --- electromagnetic distortion --- two-dimensional imaging --- common-mode noise --- corrugated ground plane --- differential signaling --- electromagnetic bandgap --- metamaterial --- stepped impedance --- metasurfaces --- linear to circular polarization converter --- dual-band polarization converters --- transmission-based polarization conversion --- dual-band --- fractals --- microwave absorbers --- UHF-RFID --- left-handed line --- sensors --- phase shift --- terahertz metamaterials --- graphene --- encoder --- active control --- n/a

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This book is a collection of recent publications from researchers all over the globe in the broad area of high-voltage engineering. The presented research papers cover both experimental and simulation studies, with a focus on topics related to insulation monitoring using state-of-the-art sensors and advanced machine learning algorithms. Special attention was given in the Special Issue to partial discharge monitoring as one of the most important techniques in insulation condition assessment. Moreover, this Special Issue contains several articles which focus on different modeling techniques that help researchers to better evaluate the condition of insulation systems. Different power system assets are addressed in this book, including transformers, outdoor insulators, underground cables, and gas-insulated substations.

artificial neural network --- simulation --- high-frequency --- artificial flashover tests --- wide bandgap power modules --- tracking --- electrical field strength --- fast-rise square wave voltages --- FDTD simulation --- cable joint --- corona discharge --- feature selection --- post insulator --- earthing systems --- wind speed --- surface discharge --- oil/paper insulation --- oil-paper insulation --- high-magnitude currents and impulse polarity --- UFVM --- Tettex 9520 --- electrical tree --- flashover characteristics --- composite insulator --- partial discharge --- numerical modeling --- saline mechanism --- thermal parameters --- space charge density --- seasonal --- ion flow field --- denoising --- DDX 9121b --- temperature --- transformer asset management --- cavity discharge --- space/interface charge --- insulation health index --- heat transfer model --- leakage current --- machine learning --- partial discharges (PD) --- RF signal --- flashover --- high impulse conditions --- grounding electrodes --- generalized finite difference time domain --- curve fitting --- grounding --- plasma discharge --- outdoor insulators --- flashover dynamic model --- wavelet transform --- degradation --- thermal properties --- bipolar charge transport model --- UHF sensor --- cable --- random walk theory --- tracking test setup --- GIL --- pressure --- modelling --- non-uniform pollution between windward and leeward sides --- calibrator --- secondary arc --- polymeric insulation --- optical-UHF integrated detection --- shoreline --- dry band arcing --- photoelectric fusion pattern --- DDX 8003 --- XLPE --- silicone gel --- partial discharge modeling --- electric field analysis --- NSCT --- electrode’s geometry --- gas --- Comsol Multiphysics --- fast-impulses --- laying modes --- ageing --- cable ampacity --- residual resistance formulation --- finite element analysis --- thermal effect --- hydrophobicity --- soil resistivity --- charge simulation method --- short-circuit discharge --- dry band formation

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During the past few decades, information technologies have been evolving at a tremendous rate, causing profound changes to our world and to our ways of living. Emerging applications have opened u[ new routes and set new trends for antenna sensors. With the advent of the Internet of Things (IoT), the adaptation of antenna technologies for sensor and sensing applications has become more important. Now, the antennas must be reconfigurable, flexible, low profile, and low-cost, for applications from airborne and vehicles, to machine-to-machine, IoT, 5G, etc. This reprint aims to introduce and treat a series of advanced and emerging topics in the field of antenna sensors.

Technology: general issues --- 3D printing --- additive manufacturing --- Radio Frequency IDentification (RFID), chipless RFID --- mounted on metal --- unmanned aerial vehicle --- phased array --- frequency reconfiguration --- beam steering --- antioxidation --- frequency-reconfiguration --- liquid metal --- temperature sensor --- antenna sensor --- thermal expansion --- electrolyte-free --- industrial WSN --- ISA100.11a model --- ns-3 --- WSN --- UHF antennas --- ultra wideband antennas --- conformal antennas --- radio frequency identification --- elliptical dipole antenna --- EM/circuit co-simulation --- low-cost --- low-power --- power gating --- RF oscillator --- RTLS --- ultrawide band antennas --- biopotential sensing --- Fabry-Perot resonator --- antenna --- superstrate --- metamaterials --- passive sensing --- sensor array --- sparse array --- nonuniform array --- planar array --- random array --- low discrepancy sequence --- triband antenna --- wireless sensors --- planar patch antenna --- mobile applications --- DCS --- WLAN --- WiMAX --- circular polarization --- flexible --- polymer --- transparent --- wearable --- litz wire --- lateral misalignment --- magnetic field distribution --- mutual inductance --- Neumann integral formula --- planar spiral coil --- Internet of Things (IoT) --- wireless sensor network (WSN) --- switched-beam antenna --- electronically steerable parasitic array radiator (ESPAR) antenna --- received signal strength (RSS) --- direction-of-arrival (DoA) estimation

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Research & information: general --- Geography --- high-resolution --- highly-squinted --- maneuvers --- fifth-order motion parameter model --- spatial variation --- frequency-domain processing --- extended back-projection algorithm --- topography variations --- computational burden --- high resolution --- lunar penetrating radar --- lunar exploration --- compressive sensing --- lunar regolith modeling --- signal processing --- Synthetic Aperture Radar (SAR) --- Airborne SAR --- Sounder --- P-Band --- helicopter-borne radar --- UHF and VHF bands --- MIMO radar --- through-wall imaging --- ultrawideband signal --- SFCW --- sparse array --- back projection algorithm --- Vivaldi antenna --- SAR Interferometry --- Digital Elevation Model (DEM) --- Frequency-Modulated Continuous-Wave (FMCW) --- differential interferometry --- DInSAR --- precision agriculture --- drone-borne radar --- crop growth deficit map --- radar imaging --- unmanned aerial vehicle --- inverse scattering --- linear scattering models --- global positioning systems --- range-Doppler processor --- corner reflector --- forward-looking GPR --- surface clutter --- near-field --- antenna arrays --- microwave imaging --- coherence factor --- n/a