Electric Field Homogeneity Optimization by Dielectric Inserts for Improved Material Sensing in a Cavity Resonator

2015 ◽  
Vol 64 (8) ◽  
pp. 2239-2246 ◽  
Author(s):  
Usman Faz ◽  
Uwe Siart ◽  
Thomas F. Eibert ◽  
Tobias Hermann
Keyword(s):  
Electric Field ◽  
Cavity Resonator ◽  
Field Homogeneity ◽  
Electric Field Homogeneity

Simple circuit to improve electric field homogeneity in contour-clamped homogeneous electric field chambers

2003 ◽  
Vol 24 (78) ◽  
pp. 1137-1144
Author(s):  
José A. Herrera ◽  
Carlos A. Canino ◽  
Lilia López-Cánovas ◽  
Regnar Gigato ◽  
Ana Maria Riverón
Keyword(s):  
Electric Field ◽  
Simple Circuit ◽  
Homogeneous Electric Field ◽  
Field Homogeneity ◽  
Electric Field Homogeneity

Synthesis of Electrode Configurations that Conserve Fringing Electric Field Homogeneity in Euler Terms

2018 ◽  
Vol 63 (4) ◽  
pp. 593-597 ◽  
Author(s):  
Yu. K. Golikov ◽  
A. S. Berdnikov ◽  
A. S. Antonov ◽  
N. K. Krasnova ◽  
K. V. Solov’ev
Keyword(s):  
Electric Field ◽  
Field Homogeneity ◽  
Electric Field Homogeneity ◽  
Fringing Electric Field

Microwave Magneto-Electric Interactions in Multiferroics

2006 ◽  
Vol 966 ◽  
Author(s):  
Gopalan Srinivasan ◽  
A.S. Tatarenko ◽  
Y. K. Fetisov ◽  
V. Gheevarughese ◽  
M.I. Bichurin
Keyword(s):  
Electric Field ◽  
Ferromagnetic Resonance ◽  
Lead Zirconate Titanate ◽  
Resonance Field ◽  
Cavity Resonator ◽  
Lead Zirconate ◽  
Field Orientation ◽  
Field Shift ◽  
Lead Magnesium ◽  
Iron Garnet

ABSTRACTInvestigations on microwave magneto-electric (ME) interactions at 1-10 GHz have been carried out on yttrium iron garnet (YIG)-lead zirconate titanate (PZT) and YIG-lead magnesium niobate lead titanate (PMN-PT) bilayers. Ferromagnetic resonance is a powerful tool for such studies. An electric field E applied to the composite produces a mechanical deformation in PZT or PMN-PT, resulting in a shift in the resonance field for YIG. Information on the nature of high frequency ME coupling has been obtained from data on resonance field shift vs E. A cavity resonator or stripline structure was used. The measured ME interactions are in the range 1-5 Oe cm/kV. The coupling strength has been found to be dependent on magnetic field orientation. The strongest interaction is measured in YIG-PZT systems. The design and characterization of ferromagnetic resonance based, electric field tunable ME resonators and filters are discussed.

scholarly journals The Cylindrical Multi–Wire System to Provide Homogeneous Electric Field

2013 ◽  
Vol 64 (1) ◽  
pp. 55-58
Author(s):  
Ján Janík ◽  
Marian Veselý
Keyword(s):  
Electric Field ◽  
Electrostatic Field ◽  
Ion Beams ◽  
Homogeneous Electric Field ◽  
Velocity Filter ◽  
Field Homogeneity ◽  
A Charge ◽  
Wire System

This article is a study of electrostatic field homogeneity produced by system of wires cylindrically placed parallel to the axis. The study investigates the homogeneity in a chamber having 20 wires and compares results of different computation methods. The chamber can be a part of a charge particles beam deflecting system as good as it can be an electrostatic part of Wien velocity filter for electron/ion beams. Results of field homogeneity radius calculations are presented.

An Electromagnetic Parameters Measuring System Based on a Concave Cylindrical Cavity

2014 ◽  
Vol 881-883 ◽  
pp. 1754-1757
Author(s):  
Xian Yan Chen ◽  
Xing Liu ◽  
Long Fang Ye ◽  
Xue Yi Li ◽  
Fen Xiao ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Cylindrical Cavity ◽  
Cavity Resonator ◽  
Measuring System ◽  
Field Region ◽  
Electromagnetic Parameters ◽  
Microwave Absorbing Materials ◽  
Magnetic Field Region ◽  
Cylindrical Cavity Resonator

In this paper, an electromagnetic parameters measuring system based on a concave cylindrical cavity is presented. The concave cylindrical cavity resonator mode is with separated electric field and magnetic field distribution region, which is not observed in other cavities. It is shown that permittivity and permeability can be tested by placing samples in the strongest electric field region and magnetic field region, respectively. Therefore, by using this measurement system, the electromagnetic parameters of microwave absorbing materials can be accurately characterized.

Resolution in photoelectron microscopy

1991 ◽  
Vol 49 ◽  
pp. 458-459
Author(s):  
G. F. Rempfer
Keyword(s):  
Electron Microscopy ◽  
Electric Field ◽  
Ultraviolet Light ◽  
Uniform Field ◽  
Virtual Image ◽  
Lens System ◽  
Photoemission Electron Microscopy ◽  
Planar Electrode ◽  
Electron Lens ◽  
Photoemission Electron

In photoelectron microscopy (PEM), also called photoemission electron microscopy (PEEM), the image is formed by electrons which have been liberated from the specimen by ultraviolet light. The electrons are accelerated by an electric field before being imaged by an electron lens system. The specimen is supported on a planar electrode (or the electrode itself may be the specimen), and the accelerating field is applied between the specimen, which serves as the cathode, and an anode. The accelerating field is essentially uniform except for microfields near the surface of the specimen and a diverging field near the anode aperture. The uniform field forms a virtual image of the specimen (virtual specimen) at unit lateral magnification, approximately twice as far from the anode as is the specimen. The diverging field at the anode aperture in turn forms a virtual image of the virtual specimen at magnification 2/3, at a distance from the anode of 4/3 the specimen distance. This demagnified virtual image is the object for the objective stage of the lens system.

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