Permittivity

View this topic in
In electromagnetism, permittivity is the measure of the resistance that is encountered when forming an electric field in a medium. (Wikipedia.org)






Conferences related to Permittivity

Back to Top

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

Ferroelectric materials and applications


2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)

ANTEM's technical sessions will provide a comprehensive and well-balanced program and are intended to provide an international forum for the exchange of information on state-of-the-art research in antennas, propagation, and electromagnetic engineering. Authors are invited to submit contributions for review and possible presentation during the symposium on topics of interest to ANTEM. In addition to regularly scheduled sessions for oral presentations, there will be distinguished lecturers and special sessions. There will be a Student Paper Competition as well as a Technical Exhibition.


2018 22nd International Microwave and Radar Conference (MIKON)

Antenna Design, Modeling & MeasurementsMicrowave Devices, Circuits & ComponentsMillimeter-wave & Terahertz TechnologyMicrowave Photonics, Circuits & SystemsRF, VHF & UHF TechnologyEM Field Theory & Numerical TechniquesMicrowave MeasurementsIndustrial, Scientific and Medical ApplicationsWireless Technology & ApplicationsElectromagnetic CompatibilitySpace & Satellite SystemsRadar TechnologyRadar Systems & ApplicationsRadar Signal ProcessingTracking & Data FusionRadar Imaging & Remote SensingNoise, MIMO & UWB RadarsMultistatic & Passive Radar Systems


2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz2018)

Covering terahertz, far infrared and millimeter wave science, technology and applications


2018 48th European Microwave Conference (EuMC)

The Premier European event for the disemination of knowledge about Microwave Technology.The event caters for the seasoned industrial engineer as well as the graduate student. Sessionsand workshops are held on the full range of microwave technology from field theory, throughcomponents and subsystems to systems.

  • 2017 47th European Microwave Conference (EuMC)

    The Premier European event for the disemination of knowledge about Microwave Technology.The event caters for the seasoned industrial engineer as well as the graduate student. Sessions and workshops are held on the full range of microwave technology from field theory, through components and subsystems to systems.

  • 2016 46th European Microwave Conference (EuMC)

    The Premier European event for the disemination of knowledge about Microwave Technology. The event caters for the seasoned industrial engineer as well as the graduate student. Sessions and workshops are held on the full range of microwave technology from field theory, through components and subsystems to systems.

  • 2015 European Microwave Conference (EuMC 2015)

    The 45th European Microwave Conference (EuMC) represents the main event in the European Microwave Week 2015, the largest event in Europe dedicated to microwave components, systems and technology. It is the premier event to present the current status and future trends in the field of microwave, millimeter-wave and terahertz systems and technologies. A broad range of high frequency related topics, from materials and technologies to integrated circuits, systems and applications will be addressed in all their aspects: theory, simulation, design and measurement.The European Microwave Conference provides many opportunities of networking and interaction with international experts in a wide variety of specialties, attracting delegates with academic as well as industrial backgrounds. In addition to scientific papers, contributions on industrial applications are also encouraged, covering the fields of instrumentation, medical, telecommunication, radar, space, automotive and defense systems.

  • 2014 44th European Microwave Conference (EuMC)

    EuMC is the premier European conference in the microwave field, which represent the ideal venue for prospective authors to present the status and trends in microwave and millimetre-wave systems and frequency related topics, from materials and technologies to integrated circuits, systems their aspects: theory, simulation, design and measurement including passive components, design of high frequency and high data rate photonics, highly stable and noiseless microwave wave sources, new linearisation techniques and the impact of new packaging technologies.

  • 2013 European Microwave Conference (EuMC)

    Status and trends in microwave and millimetre -wave systems and technologies. High-frequency related topics, from materials and technologies to integrated circuits, systems and applications in alltheir aspects: theory, simulation, design and measurement including passive components, modelling and design of high frequency and high data rate photonics, highly stable and noiseless microwave and millimetre-wave sources, new linearisation techniques and the impact of new packaging technologies on development

  • 2012 European Microwave Conference (EuMC)

    Microwave and millimeter wave: active/passive devices, antennas, electromagnetics, bio-interaction, circuits, manufacturing and measurement, MEMS, meta-materials, sensor networks, cognitive radio, 4G communications, space technology and applications.

  • 2011 European Microwave Conference (EuMC)

    Status and trends in microwave and millimetre-wave systems and technologies. High-frequency related topics, from materials and technologies to integrated circuits, systems and applications in all their aspects: theory, simulation, design and measurement including passive components, modelling and design of high frequency and high data rate photonics, highly stable and noiseless microwave and millimetre-wave sources, new linearisation techniques and the impact of new packaging technologies on development app

  • 2010 European Microwave Conference (EuMC)

    The European Microwave Conference is the premier forum for presentation of the present status and future trends in the field of microwave, millimetre- and submillimetre-wave systems and technologies.

  • 2009 European Microwave Conference (EuMC)

    The 39th European Microwave Conference (EuMC), is the core of the European Microwave Week 2009, the largest event in Europe dedicated to microwave electronics. It is the premier forum to present the actual status and future trends in the field of materials and technologies to integrated circuits, systems and applications will be addressed in all their aspects: theory, simulation, design and measurement.

  • 2008 European Microwave Conference (EuMC)

    The 38th European Microwave Conference (EuMC) in Amsterdam, The Netherlands, from 27 to 31 October, is the core of the European Microwave Week 2008, the largest event in Europe dedicated to microwave electronics. It is the premier forum to present the actual status and future trends in the field of materials and technologies to integrated circuits, systems and applications will be addressed in all their aspects: theory, simulation, design and measurement.

  • 2007 European Microwave Conference (EuMC)

    Status and trends in microwave and millimetre-wave systems and technologies. High-frequency related topics, from materials and technologies to integrated circuits, systems and applications in all their aspects: theory, simulation, design and measurement including passive components, modelling and design of high frequency and high data rate photonics, highly stable and noiseless microwave and millimetre-wave sources, new linearisation techniques and the impact of new packaging.

  • 2006 European Microwave Conference (EuMC)

  • 2005 European Microwave Conference (EuMC)

  • 2004 European Microwave Conference (EuMC)

  • 2003 European Microwave Conference (EuMC)

  • 1998 28th European Microwave Conference (EuMC)

  • 1997 27th European Microwave Conference (EuMC)


More Conferences

Periodicals related to Permittivity

Back to Top

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


Biomedical Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


More Periodicals


Xplore Articles related to Permittivity

Back to Top

Uncertainty analysis and temperature sensitivity of the complex permittivity measurement of biological tissues using PMCT probes within a wide microwave frequency bands

[{u'author_order': 1, u'affiliation': u'Department of Electric Engineering, Nanjing University of Science and Technology, China', u'full_name': u'Zhanxian Wang'}, {u'author_order': 2, u'affiliation': u'Department of Electric Engineering, Nanjing University of Science and Technology, China', u'full_name': u'Wenquan Che'}, {u'author_order': 3, u'affiliation': u'Department of Electric Engineering, Nanjing University of Science and Technology, China', u'full_name': u'Lixue Zhou'}, {u'author_order': 4, u'affiliation': u'Department of Electric Engineering, Nanjing University of Science and Technology, China', u'full_name': u'Yumei Chang'}] 2008 Asia-Pacific Microwave Conference, None

In this paper, the part microwave coagulation therapy (PMCT) probe is used for calibration and measurement. Two reference liquids are measured and the reflection coefficients are recorded and calculated, the rational functional model (RFM) coefficients for PMCT probe are then calculated and compared in two cases of different reference liquids. We may note that, within a wide frequency range, saying, ...


Effects of iron pipe corrosion on GPR detection

[{u'author_order': 1, u'affiliation': u'Department of Electronic & Electrical Engineering, University of Bath, Claverton Down, BA2 7AY, UK', u'full_name': u'S. R. Pennock'}, {u'author_order': 2, u'affiliation': u'School of Civil Engineering, University of Birmingham, UK', u'full_name': u'D. N. Chapman'}, {u'author_order': 3, u'affiliation': u'School of Civil Engineering, University of Birmingham, UK', u'full_name': u'C. D. F. Rogers'}, {u'author_order': 4, u'affiliation': u'School of Civil Engineering, University of Birmingham, UK', u'full_name': u'A. C. D. Royal'}, {u'author_order': 5, u'affiliation': u'Department of Electronic & Electrical Engineering, University of Bath, Claverton Down, BA2 7AY, UK', u'full_name': u'A. Naji'}, {u'author_order': 6, u'affiliation': u'Department of Electronic & Electrical Engineering, University of Bath, Claverton Down, BA2 7AY, UK', u'full_name': u'M. A. Redfern'}] Proceedings of the XIII Internarional Conference on Ground Penetrating Radar, None

Many studies into the use of GPR to detect targets assume that the targets are ideal reflectors. In reality most targets have been in the ground for many years and have settled and suffered some contamination or corrosion. Iron pipe in particular can be hard to find with GPR. Some possible corrosion processes suggest that a varying conductivity and permittivity ...


Wideband Nondestructive Measurement of Complex Permittivity and Permeability Using Coupled Coaxial Probes

[{u'author_order': 1, u'affiliation': u'Department of Electrical and Electronic Engineering, Malek Ashtar University of Technology, Tehran, Iran', u'full_name': u'Mohammad Hossein Hosseini'}, {u'author_order': 2, u'affiliation': u'Department of Electrical and Electronic Engineering, Malek Ashtar University of Technology, Tehran, Iran', u'full_name': u'Hamid Heidar'}, {u'author_order': 3, u'affiliation': u'Department of Applied Sciences, Malek Ashtar University of Technology, Isfahan, Iran', u'full_name': u'Mohammad Hossein Shams'}] IEEE Transactions on Instrumentation and Measurement, 2017

A nondestructive measurement system for simultaneous measurement of complex permittivity and complex permeability of planar materials over a wide frequency bandwidth is proposed in this paper. This two-port measurement system consists of two open-ended coaxial probes terminated in flanges that are in contact with the material sheet under test. It measures the reflection from and transmission through the material sheet ...


An experimental study on UWB BPF loaded with dielectric rods

[{u'author_order': 1, u'affiliation': u'Department of Electrical Engineering and Electronics, College of Science and Engineering, Aoyama Gakuin University, Japan', u'full_name': u'Takenori Yasuzumi'}, {u'author_order': 2, u'affiliation': u'Department of Electrical Engineering and Electronics, College of Science and Engineering, Aoyama Gakuin University, Japan', u'full_name': u'Osamu Hashimoto'}, {u'author_order': 3, u'affiliation': u'TDK Corporation, Japan', u'full_name': u'Takeshi Takahashi'}] 2008 Asia-Pacific Microwave Conference, None

In this study, a new BPF is proposed by combining the periodic dielectric structure and the short-ended stubs. First, the analytical results showed that the high dielectric rods implanted in the dielectric substrate provides a stopband without affecting the passband which the short-ended stubs produce. Next, the proposed BPF is fabricated by using the LTCC technology. Lastly, the fabricated BPF's ...


Spectral Decomposition of Soil Electrical and Dielectric Losses and Prediction of <italic>In&#x00A0;Situ</italic> GPR Performance

[{u'author_order': 1, u'affiliation': u'Department of Geoelectrics and Electromagnetics, Leibniz Institute for Applied Geophysics, Hannover, Germany', u'full_name': u'Markus Loewer'}, {u'author_order': 2, u'affiliation': u'Department of Geoelectrics and Electromagnetics, Leibniz Institute for Applied Geophysics, Hannover, Germany', u'full_name': u'Jan Igel'}, {u'author_order': 3, u'affiliation': u'Institute of Material Research and Testing, Bauhaus-University Weimar, Weimar, Germany', u'full_name': u'Norman Wagner'}] IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016

The performance of high-frequency ground-penetrating radar (GPR) for high- resolution imaging of the near surface can essentially be controlled by the soil electromagnetic (EM) properties. One of these properties influencing sensing depth and image resolution of GPR is the intrinsic attenuation. We investigated the frequency-dependent electrical and dielectric properties of a broad range of soil samples. In order to derive ...


More Xplore Articles

Educational Resources on Permittivity

Back to Top

eLearning

No eLearning Articles are currently tagged "Permittivity"

IEEE.tv Videos

No IEEE.tv Videos are currently tagged "Permittivity"

IEEE-USA E-Books

  • PEEC Models for Dielectrics

    This chapter concentrates on inclusion of several different dielectric circuit¿¿¿oriented models in partial element equivalent circuit (PEEC) to cover a wide range of applications. The interesting aspect is that once either the real or imaginary part of the dielectric model is known for the entire frequency range 0 ¿¿¿ f ¿¿¿ ¿¿¿, then the other part is uniquely determined by the so¿¿¿called Hilbert transform. The chapter describes three different issues. First, the chapter treats the electrical description of dielectric materials in the time and frequency domains. Second, the chapter considers different approaches for the description of the properties of dielectrics such that they can be included in the PEEC solution. Third, it presents approaches for the inclusion of dielectrics in a PEEC model. The chapter further presents equivalent circuits for the multi¿¿¿pole Debye model, the Lorentz model, and other general combined models.

  • Integral Equations and Method of Moments

    This chapter discusses the method for determining the current distribution along a straight conductor. It explores the integral equation for an arbitrarily shaped wire antenna for the unknown current along the wire using the Method of Moments (MoM). The unknown current in integral equation is often solved using a point¿¿¿matching technique, which is a MoM technique. The integral equation becomes a powerful analysis tool for an antenna whose shape is expressed by a simple function and, hence, the integrals and derivatives in the kernel, are readily manipulated. However, if the antenna has a complicated structure, the kernel calculations require cumbersome manipulations. To simplify the programming of the solver and reduce the computing time, it is desirable to derive an integral equation with a closed¿¿¿form kernel. Such an integral equation has been derived.

  • Linear Sampling Method

    The linear sampling method (LSM) is most frequently used qualitative inversion methods, and has been numerically proven to be a fast and reliable method in many situations. This chapter discusses the LSM for the following reasons. The indicator function is easy to calculate and its physical meaning is straightforward. The chapter outlines the LSM, introducing the indicator function and the corresponding linear equation it satisfies. Although the LSM involves solving sets of linear equations when calculating the indicator function, it does not assume any linearizing approximation to the original nonlinear scattering operation, such as the Born approximation. The chapter provides physical interpretation to the mechanism of the LSM. It presents a modified LSM that is based on the multipole expansion of scattered field. The chapter explains the factorization method (FM) that is closely related to the LSM and more importantly provides the proof of the rigor of the LSM.

  • Basic Performance Characteristics of Wearable Antennas over a Wide Frequency Range

    This chapter describes the basic performance characteristics of wearable antennas for body-centric wireless communications over a wide frequency range. It overviews frequency dependence of the communication channels between 3 MHz and 3 GHz for wearable antennas mounted on the human body. A static human body model which has a posture of standing in free space is employed in order to characterize various frequency channels. The chapter discusses the electric field distributions around the human body, received open voltage, and power transmission efficiency with ideal matching circuits. It describes the influence of a surrounding environment (namely a metal floor and a wall close to the human body) on the electric field distribution and received open voltages around the human body. The chapter demonstrates two different scenarios to apply the basic results to practical situations: a commercialized wall-mounted identification (ID) tag system and a human vital data acquisition system using a dual-mode antenna.

  • Capacitance Phenomena

    The phenomenon of building up a static charge when walking on a carpet illustrates the charge-storing abilities of human body capacitance. Many electronic devices, such as touch-screen displays, touch-sensitive switches, and computer touch pads make use of this property. Capacitors used in electric power applications are typified by the rectangular cans with one or two bushings. When the dielectric materials contain polarized molecules (dipoles), the polarization may be caused by field cancellation from the capacitor plates. In a simple DC circuit, capacitors can be charged through a resistor at an exponential rate. Power capacitors are used in electric power applications mainly for power factor correction and harmonic filters. Filter capacitors cause several electrical hazards, including the risk of electrical shock from a capacitor charged to a high voltage with a high stored energy. The capacitance of a cable is a distributed quantity-the longer the cable, the larger the capacitance.

  • Reconstructing Dielectric Scatterers

    This chapter is devoted to quantitative reconstruction algorithms that are aimed at retrieving permittivities of dielectric scatterers from the knowledge of measured scattering data. It introduces the fundamentals of quantitative reconstruction algorithms and discusses the properties of uniqueness, stability, and nonlinearity. The chapter presents the formulation of the forward method, which is followed by casting the inverse problem to an optimization problem. It reviews noniterative inversion methods, of which there are two types. In particular, one type is Born‐type inversion algorithm and the other type is Rytov type approximations. The chapter also reviews several iterative inversion methods. In particular, for the inversion methods, their implementation steps are presented and their properties and characteristics are commented on. The chapter describes a subspace‐based optimization method (SOM), for which the implementation steps and numerical reconstruction results are presented. It also discusses several important issues in the theories and implementations of quantitative reconstruction algorithms.

  • Propagation in Microcells and Picocells

    This chapter contains sections titled: Introduction Review of Some Propagation Basics Microcell and Picocell Empirical Models Projects Summary References Software Supplied

  • Waves in Metamaterials and Plasmon

    This chapter discusses some of the fundamentals of metamaterials including transformation electromagnetics (EM) and cloaking. Most encountered materials in practice have relative permittivity greater than one, except plasma whose relative permittivity is less than one, and relative permeability equal to one, except magnetic materials. Artificial magnetic materials have magnetic properties not found in nature even though the materials are nonmagnetic. Split‐ring resonators (SRRs) are a typical example. A man‐made chiral material consisting of a collection of metal helices is another example. The chapter also discusses another example that is bianisotropic media. SRR has been studied for use in magnetic resonance. Its size can be small and can be used as a homogeneous medium. The chapter further discusses a new and different application of the coordinate transformation, not for producing a new material, but for using the transformation to solve a wave scattering problem. Finally, it considers a wave propagating over a rough surface.

  • Numerical and Experimental Techniques for Body Area Electromagnetics

    This chapter discusses the electrical properties of human tissues, as well as numerical and physical modeling of the human body, and corresponding numerical and experimental procedures. Electrical properties of each type of tissue result from the interaction between the incident electromagnetic (EM) radiation and the tissue constituents at the cellular and molecular level and control the propagation, attenuation, reflection, and other behavior of EM fields inside and outside the human body. The computational time is usually very long, and it is generally not easy to simulate realistic conditions and include the effects of the surrounding environment. Finally, in order to ensure human safety, recommendations have been set by professional bodies and government agencies on the maximum allowable specific absorption rate (SAR) levels. However, the health hazards occurring from long-term exposure to these new technologies are far from settled.

  • 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.



Standards related to Permittivity

Back to Top

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 ...


IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz

Recommendations are made to protect against established adverse health effects in human beings associated with exposure to electric, magnetic and electromagnetic fields in the frequency range of 3 kHz to 300 GHz. The recommendations are expressed in terms of basic restrictions (BRs) and maximum permissible exposure (MPE) values. The BRs are limits on internal fields, specific absorption rate (SAR), and ...


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 ...



Jobs related to Permittivity

Back to Top