high-impedance electromagnetic surface
Compact High impedance surface antenna for IEEE S band communication
... effective, high performance antenna structure 4,14 ...where high impedance surface could be achieved using plane conducting surface 9 ....The high impedance structure ...
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Dual-Band Low Profile Directional Antenna with High Impedance Surface Reflector
... dual-band high impedance surface (HIS) electromagnetic band-gap (EBG) structure is designed as a reflector for a dual-band coplanar waveguide (CPW)-fed planar monopole ...
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High Frequency Scattering by a Second-Order Generalized Impedance Discontinuity on a Cylindrically Curved Surface
... of electromagnetic waves by a two-part surface is an important topic in diffraction theory because it constitutes a canonical problem for analyzing the scattering caused by an abrupt change in the material ...
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Evaluating the Electromagnetic Surface Wave of High Impedance Structures by Monopole Antenna and Application for Patch Antennas at Q Band
... HIS structure then is integrated into microstrip patch antenna designs. The microstrip antenna will be surrounded by a limited rows number of HIS unit cells. The HIS structure shows that it can be used to improve the ...
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Radar Cross Section Reduction Property of High Impedance Surface on a Lossy Dielectric
... of high impedance surfaces (HIS) in 1999 by Daniel Sievenpiper [1], it found a lot of applications because of its artificial magnetic conductor (AMC) property at a particular ...input impedance of HIS ...
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Optimization of characteristics of Dipole antenna with high impedance surface at 2.4 GHz
... If the protrusions are small compared to the wavelength, their electromagnetic properties can be described using lumped circuit elements – capacitors and inductors. The proximity of the neighboring metal elements ...
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A Stacked Ring-Patch Artificial Substrate to Improve the Antenna Performance
... their surface wave suppression characteristics are not demonstrated [5, ...for surface wave suppression, but the surface wave suppression band is at higher frequency for given dimension than via ...
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Quantitative NDE of Surface Cracks in Ceramic Materials by means of a High Frequency Electromagnetic Wave
... the impedance of the local area under the probe decrease, if the area of air ...Therefore, high-frequency electro- magnetic wave can permeate more ...
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Optimum High Impedance Surface Configuration for Mutual Coupling Reduction in Small Antenna Arrays
... the electromagnetic properties of two differ- ent High Impedance Surfaces (HIS) with or without Electromagnetic Band Gap (EBG) in different configurations are investigated for mutual coupling ...
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A RFID Tag Metal Antenna on a Compact HIS Substrate
... The high impedance surface (HIS) operated as a kind of artificial electromagnetic material functions as a perfect magnetic conductor with in-phase reflection and high impedance ...
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Design and Development of a Novel EBG Cell
... the electromagnetic properties which are not available in natural ...materials. Electromagnetic band gap (EBG) structures are also known as photonic band gap (PBG), high impedance ...
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Scattering Analysis of a Printed Dipole Antenna Using PBG Structures
... the electromagnetic scattering. The high surface impedance and a frequency gap are used to reduce RCS(radar cross section) across needed frequency range ...the high surface ...
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A Varactor-Tunable High Impedance Surface for Active Metamaterial Absorber
... High impedance surfaces (HIS) are a kind of meta-material structure which exhibits unique electromagnetic characteristics, namely an in- phase reflection coefficients for incident plane waves and ...
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Solving the Problem of Electromagnetic Wave Scattering on Small Impedance Particle by Integral Equation Method
... Among a variety of publications, devoted to application of integral equation method to solve EM and acoustic wave scattering problems, one should note the approach proposed in the Chapter “Integral Equation Method for ...
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Intentional Electromagnetic Interferences In Communication Devices
... [UWB]Ultra-Wideband Radio uses radio impulses to transmit information. The key concept underlying UWB radio by using low power spread spectrum over a very wide bandwidth, one may communicate information without seriously ...
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Directional Dual-Band Slot Antenna with Dual-Bandgap High-Impedance-Surface Reflector
... Abstract—A compact dual-band high-impedance-surface EBG struc- ture is employed as a reflector for a dual-band annular-slot antenna. The reflector comprises an array of miniaturized EBG cells which ...
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Electric and magnetic fields analysis of Traveling Wave Induction Heating
... Generally, there are two main solving methods for the electromagnetic problem in the Traveling Wave Induction Heating (TWIH) systems; the analytical (mathematical) solution, and numerical solution [1]. The ...
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Electrochemical Impedance Spectroscopy (EIS) Study of LiNi1/3Co1/3Mn1/3O2 for Li-ion Batteries
... from high to low frequencies. The impedance spectra are recorded at each state allowing at least 5 additional hours for equilibration after each charging/discharging ...
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Enhanced features for design of traveling wave tubes using Christine-1D
... The TWT amplifies by converting the kinetic energy of an electron beam to the electromagnetic energy of an RF electromagnetic wave. The TWT amplifies a low power RF signal for transmission at significantly ...
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oa Interim : Interdisciplinary Journal - Resonant inductive charging system for a battery operated automatic guided vehicle
... Wireless transfer technology has become an effective and reliable option to replace the conventional wire transfer technology. The topology involves a power transmitter connected to the grid, and a power receiver ...
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