Frequency-domain asymptotic solutions for scattered electric field by a 2-D coated conducting cylinder covered with a thick dielectric medium

Uniformly asymptotic frequency-domain solutions for a class of hyperbolic equations with singular convolution operators are derived. Asymptotic solutions for this class of equations involve additional parameters — called attenuation parameters — which control the smoothing of the wavefield at the wavefront. At caustics the ray amplitudes have a singularity associated with vanishing of ray spreading and with divergence of an integral controlling the rate of exponential amplitude decay. Both problems are resolved by applying a generalized Kravtsov–Ludwig formula derived in this paper. A different asymptotic solution is constructed in the case of separation of dispersion and focusing effects.

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Equilibrium orientation of an ellipsoidal particle inside a dielectric medium with a finite electric conductivity in the external electric field

Physical Review E ◽

10.1103/physreve.71.056611 ◽

2005 ◽

Vol 71 (5) ◽

Cited By ~ 9

Author(s):

Yu. Dolinsky ◽

T. Elperin

Keyword(s):

Electric Field ◽

Electric Conductivity ◽

External Electric Field ◽

Dielectric Medium ◽

Ellipsoidal Particle

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Study on transient scattered electric field from a coated conducting cylinder covered with a thin lossy dielectric material excited by UWB pulse wave

2015 International Conference on Electromagnetics in Advanced Applications (ICEAA) ◽

10.1109/iceaa.2015.7297110 ◽

2015 ◽

Cited By ~ 1

Author(s):

K. Goto ◽

T. Santikul ◽

R. Asai ◽

N. Sumikawa

Keyword(s):

Electric Field ◽

Pulse Wave ◽

Dielectric Material ◽

Conducting Cylinder ◽

Lossy Dielectric

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SOA-fiber ring laser and its application to electric field sensing in frequency domain

Optics and Lasers in Engineering ◽

10.1016/j.optlaseng.2006.12.002 ◽

2007 ◽

Vol 45 (7) ◽

pp. 789-794 ◽

Cited By ~ 5

Author(s):

T. Suemune ◽

Y. Takahashi

Keyword(s):

Electric Field ◽

Frequency Domain ◽

Ring Laser ◽

Fiber Ring Laser ◽

Fiber Ring ◽

Electric Field Sensing ◽

Field Sensing

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Time-domain uniform asymptotic solution for transient scattered electric field from a conducting cylinder coated with a thin dielectric layer

2017 International Conference on Electromagnetics in Advanced Applications (ICEAA) ◽

10.1109/iceaa.2017.8065667 ◽

2017 ◽

Author(s):

K. Goto ◽

R. Takahashi ◽

R. Manabe ◽

Y. Egashira

Keyword(s):

Electric Field ◽

Asymptotic Solution ◽

Time Domain ◽

Dielectric Layer ◽

Conducting Cylinder ◽

Thin Dielectric Layer

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PERFORMANCE ANALYSIS OF AN ENGINE MOUNT FEATURING ER FLUIDS AND PIEZOACTUATORS

International Journal of Modern Physics B ◽

10.1142/s0217979296001586 ◽

1996 ◽

Vol 10 (23n24) ◽

pp. 3143-3157 ◽

Cited By ~ 28

Author(s):

S.H. CHOI ◽

Y.T. CHOI ◽

S.B. CHOI ◽

C.C. CHEONG

Keyword(s):

Electric Field ◽

Frequency Domain ◽

Control Technique ◽

Operating Frequency ◽

Frequency Range ◽

Engine Mounts ◽

Operating Frequency Range ◽

Engine Mount ◽

Er Fluids ◽

Er Fluid

Conventional rubber mounts and various types of passive or semi-active hydraulic engine mounts for a passenger vehicle have their own functional aims on the limited frequency band in the broad engine operating frequency range. In order to achieve high system performance over all frequency ranges of the engine operation, a new type of engine mount featuring electro-rheological(ER) fluids and piezoactuators is proposed in this study. A mathematical model of the proposed engine mount is derived using the bond graph method which is inherently adequate to model the interconnected hydromechanical system. In the low frequency domain, the ER fluid is activated upon imposing an electric field for vibration isolation while the piezoactuator is activated in the high frequency domain. A neuro-control algorithm is utilized to determine control electric field for the ER fluid, and H∞ control technique is adopted for the piezoactuator Comparative works between the proposed and single-actuating(ER fluid only or piezoactuator only) engine mounts are undertaken by evaluating force transmissibility over a wide operating frequency range.

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Representation of the Coherent Field in Terms of the Coherent Green's Function Associated with Scattering of Waves in a Random Medium

Canadian Journal of Physics ◽

10.1139/p74-224 ◽

1974 ◽

Vol 52 (17) ◽

pp. 1703-1713 ◽

Cited By ~ 1

Author(s):

S. N. Samaddar

Keyword(s):

Electric Field ◽

Green’S Function ◽

Green's Function ◽

Electromagnetic Waves ◽

Random Medium ◽

Fundamental Equation ◽

Dielectric Medium ◽

Dyadic Green’S Function ◽

Dyadic Green's Function ◽

Coherent Field

Development of the fundamental equation for the multiple scattering of electromagnetic waves by an ensemble of randomly distributed electrons is reviewed. From this expression integro-differential equations satisfied by the coherent electric field as well as the coherent dyadic Green's function are constructed. The scattered coherent field is then represented in terms of the coherent dyadic Green's function. In addition, analogous expressions are presented for the problem of scattering of electromagnetic waves from a fluctuating dielectric medium.

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