Conferences related to Dielectric constant

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2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)

Ferroelectric materials and applications

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions

2019 IEEE 69th Electronic Components and Technology Conference (ECTC)

premier components, packaging and technology conference

2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting

The conference is intended to provide an international forum for the exchange of information on state-of-the-art research in antennas, propagation, electromagnetics, and radio science.

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium

International Geosicence and Remote Sensing Symposium (IGARSS) is the annual conference sponsored by the IEEE Geoscience and Remote Sensing Society (IEEE GRSS), which is also the flagship event of the society. The topics of IGARSS cover a wide variety of the research on the theory, techniques, and applications of remote sensing in geoscience, which includes: the fundamentals of the interactions electromagnetic waves with environment and target to be observed; the techniques and implementation of remote sensing for imaging and sounding; the analysis, processing and information technology of remote sensing data; the applications of remote sensing in different aspects of earth science; the missions and projects of earth observation satellites and airborne and ground based campaigns. The theme of IGARSS 2019 is “Enviroment and Disasters”, and some emphases will be given on related special topics.

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Periodicals related to Dielectric constant

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.

Antennas and Wireless Propagation Letters, IEEE

IEEE Antennas and Wireless Propagation Letters (AWP Letters) will be devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.

Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission

Circuits and Systems II: Express Briefs, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.

Communications, IEEE Transactions on

Telephone, telegraphy, facsimile, and point-to-point television, by electromagnetic propagation, including radio; wire; aerial, underground, coaxial, and submarine cables; waveguides, communication satellites, and lasers; in marine, aeronautical, space and fixed station services; repeaters, radio relaying, signal storage, and regeneration; telecommunication error detection and correction; multiplexing and carrier techniques; communication switching systems; data communications; and communication theory. In addition to the above, ...

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Most published Xplore authors for Dielectric constant

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Xplore Articles related to Dielectric constant

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Optimization of varactor cartridge transformation

[{u'author_order': 1, u'affiliation': u'Northern Electric Co., Ltd., Ottawa, Canada', u'full_name': u'J. McCallum'}] 1964 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, 1964


Surge characteristics of a buried bare wire

[{u'author_order': 1, u'affiliation': u'Bell Telephone Laboratories, New York, N. Y.', u'full_name': u'E. D. Sunde'}] Electrical Engineering, 1940

BURIED bare wires are frequently used as grounds or counterpoises for transmission-line towers and also as shield wires for underground rubber- covered telephone wires. Experience has verified the effectiveness of such wires in reducing insulator flashovers for direct strokes to transmission towers and breakdowns of underground rubber-covered wires due to surges. Quantitative relations between surge characteristics of the wires and ...

Low resistance, low-bias current PIN diodes

[{u'author_order': 1, u'affiliation': u'Hewlett-Packard Co., Palo Alto, CA, USA', u'full_name': u'R. Curby'}, {u'author_order': 2, u'full_name': u'L. Nevin'}] 1976 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, 1976

Low resistance PIN diodes with R<inf>s</inf>below 0.2 ohm at 20 mA and a reverse bias capacitance below 1.1 pF at -20 V will be discussed.

Isolators using semiconductors

[{u'author_order': 1, u'affiliation': u'Compagnie Generale de Telegraphie Sans Fil, Puteaux, France', u'full_name': u'J. Gremillet'}] 1965 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, 1965


Cylindrically Coupled-Microstrip Line Loaded by a Perfectly Conducting Wedge

[{u'author_order': 1, u'affiliation': u'Temple University, PA', u'authorUrl': u'', u'full_name': u'M.A. Kolbehdari', u'id': 37352074600}, {u'author_order': 2, u'full_name': u'M.N.O. Sadiku'}] Digest of the Fifth Biennial IEEE Conference on Electromagnetic Field Computation, 1992


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Educational Resources on Dielectric constant

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No eLearning Articles are currently tagged "Dielectric constant"


  • The Impact of a Fringing Field on the Device Performance of a P‐Channel Tunnel Field‐Effect Transistor with a High‐κ Gate Dielectric

    This chapter reports a detailed investigation, with the help of extensive device simulations, of the effects of varying the dielectric constant_k_of the gate dielectric on the device performance of a p‐channel tunnel field‐effect transistor (p‐TFET). It is observed that the fringing field arising from a high‐_k_gate dielectric degrades the device performance of a p‐TFET, which is in contrast with that reported for its n‐channel counterpart, where the same been found to yield better performance. The impact of the fringing field is found to be larger for a p‐TFET with higher source doping. It is also found that the qualitative nature of the impact of the fringing field does not change with dimension scaling. On the other hand, the higher electric field due to increased oxide capacitance is found to be beneficial for a p‐TFET when a high‐_k_gate dielectric is used in it, as expected. It is also found that a low‐_k_spacer is beneficial for a p‐TFET, similar to that reported for an n‐TFET of similar structure.

  • Porous Media, Permittivity, Fluid Permeability of Shales and Seismic Coda

    This chapter discusses the characteristics of porous media and seismic coda waves. One of the important examples of a porous medium is oil shale. One is the permittivity and conductivity of the porous medium as given by Archie's law. The other is the flow of liquid such as oil through the porous medium as given by Darcy's law and "fluid" permeability, which is different from the "magnetic" permeability concept we commonly use in electromagnetic studies. The study of porous media is closely related to the "percolation theory" and the "fractal". The permeability of a porous medium such as shale is a measure of the resistance to the flow of a fluid through the medium. The chapter shows typical seismic waves observed at the receiver. The study of the P‐coda, S‐coda, and Rayleigh‐coda is critical to the understanding of the total seismic radiation.

  • Photonic Crystals

    This chapter presents basic concepts relating to photonic crystals (PC). It introduces the main notions concerning periodic structures, emphasizing the notion of the forbidden photonic band gap, before entering further into the details of the two dimensional crystals' structure. The chapter also presents some examples of applications in which periodic structures are used. This highlights the use of materials at forbidden photonic band gaps in several domains such as optics, micro‐wave circuits and antennae. The chapter shows the principles of the finite difference time domain (FDTD) method and explains the points necessary for modeling PC. Band Solve is particularly useful for optimizing the properties of photonic crystal structures, which are simulated using the FDTD method implemented in the software, Full Wave, to examine the time‐dependent properties such as losses, and to calculate field distributions in structures with finite dimensions.

  • Dielectric Resonator Filters

    In contrast to conventional rectangular and circular waveguide resonators, an exact solution of Maxwell's equations in dielectric resonators can be computed only by a numerical electromagnetic (EM) method such as the mode matching technique. This chapter discusses the design of dielectric resonator filters in a variety of configurations. Other different filter configurations provide a compromise between the small size advantages of metallic combline resonator filters and the high _Q_ values of dielectric resonator filters. The chapter describes major design considerations of dielectric resonator filters illustrating two different approaches for improving their spurious performance. It then addresses the improvement in the _Q_ value of dielectric resonator filters when cooled to cryogenic temperatures. The chapter presents a hybrid dielectric/superconductor filter that offers a significant size reduction compared with conventional design.The structure uses the image concept and can be employed for room‐temperature applications by replacing the image superconductor plates with normal metallic plates.

  • Solar‐Cell‐Integrated Antennas

    This chapter contains sections titled:Integration of Antennas with Solar CellsNonplanar Solar‐Cell‐Integrated AntennasPlanar Solar‐Cell‐Integrated AntennasConclusionsReferences

  • Will Composite Nanomaterials Replace Piezoelectric Thin Films for Energy Transduction Applications?

    Semiconducting piezoelectric nanowires (NWs) show significant potential for application in electronic and electromechanical sensors and energy harvesters. In particular, these nanostructures can be used to build composite piezoelectric materials that could offer several advantages when integrated vertically. First, NWs of various lengths opens the possibility to fabricate composite layers thicker than standard thin films (<4 µm). Second, low‐temperature fabrication process make this technology compatible with CMOS devices and with different substrates, such as Si, polymers, plastics, metal foils, and even paper. Third, properties such as piezoelectricity, flexibility, and dielectric constant can be improved in NWs, thereby improving the performance of NW‐containing composite materials. Finally, FEM simulations show that composites can provide better performance compared to piezoelectric thin films of the same thickness, and that performance can be improved by operating in compression or flexion modes by the right choice of the dielectric matrix and NW density.

  • Lens Antennas

    This chapter contains sections titled:Luneberg LensHemispherical LensExtended Hemispherical LensOff‐Axis Extended Hemispherical LensPlanar Lens ArrayMetal Plate Lens AntennasReferences

  • Radiation From A Dipole On The Conducting Earth

    The work of Sommerfeld initiated a widely known controversy ranged over the existence of the Zenneck surface wave, the definition of the surface wave, the choice of the branch cuts, and the poles in right or wrong Riemann surfaces. In addition, the 1909 paper by Sommerfeld contained an error in a sign, adding considerable confusion, even though the 1926 paper by Sommerfeld was correct. This chapter presents a systematic study of this problem, and whenever appropriate, indicates the source of the historical controversies. The evaluation of the field on the surface due to a dipole source is central to the Sommerfeld problem. This is an important practical problem of radio‐wave propagation. It is essential to consider three points in the complex integration: the saddle point, poles, and branch points. In contrast with the azimuthally uniform radiation from a vertical dipole, the radiation from a horizontal dipole is directional.

  • Epidermal Sensor Paradigm: Inner Layer Tissue Monitoring

    The relevant properties of the human body from the very high frequency (VHF) to the X band are studied and dominant propagation modes around the body are discussed in this chapter. Based on these data, approximate human torso models are built for each propagation mode using multiple concentric cylinders emulating the skin, muscle, organ, and the like. After this study, a simpler two-layer model of the human body is proposed for efficient calculations without loss of accuracy and used in the analysis of the epidermal sensor. The radio frequency (RF) properties of human body tissues affect propagation, reflection, attenuation, and other behaviors of electromagnetic fields around the body. Body-centric wireless communications can be divided into three types based on the interaction between the body and the EM field. In each case, different propagation modes are dominant.

  • Scattering by Turbulence, Particles, Diffuse Medium, and Rough Surfaces

    The scattering by turbulence is expressed by the scattering cross section per unit volume of turbulence, which is given by the correlation function or the spectrum of the fluctuation of dielectric constant or refractive index of the medium. Three commonly used spectra are Booker‐Gorden formula, Gaussian spectrum, and Kolmogorov spectrum. This chapter proposes a more realistic spectrum based on the actual turbulence characteristics. It discusses the scattering cross section per unit volume of turbulence. The scattering function of particles with size distributions can often be approximated by a Gaussian function. The Henyey‐Greenstein phase function is proposed to represent the optical diffuse scattering by small particles with size distribution. It has been shown to be useful for expressing optical scattering by fog and optical diffusion in tissues. The chapter describes two standard methods that deal with the scattering from rough surfaces. One is the "perturbation method" and the other is the "Kirchhoff approximation".

Standards related to Dielectric constant

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IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques

To specify protocols for the measurement of the peak spatial-average specific absorption rate (SAR) in a simplified model of the head of users of hand-held radio transceivers used for personal wireless communications services and intended to be operated while held next to the ear. It applies to contemporary and future devices with the same or similar operational characteristics as contemporary ...

IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields With Respect to Human Exposure to Such Fields, 100 kHz-300 GHz

Revise and develop specifications for preferred methods for measuring and computing external radiofrequency electromagnetic fields to which persons may be exposed. In addition, the document will specify preferred methods for the measurement and computation of the resulting fields and currents that are induced in bodies of humans exposed to these fields over the frequency range of 100 kHz to 300 ...

Recommended Practice for Measurements and Computation of Electric, Magnetic and Electromagnetic Fields With Respect to Human Exposure to Such Fields, 0 - 100 kHz

This recommended practice describes 1) methods for measuring external electric and magnetic fields and contact currents to which persons may be exposed, 2) instrument characteristics and the methods for calibrating such instruments, and 3) methods for computation and the measurement of the resulting fields and currents that are induced in bodies of humans exposed to these fields. This recommended practice ...

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