A Novel Reciprocity Based Theory for Extraction of Scattered Field under Plane Wave Incidence from that of Near-field Illumination

2019 ◽  
pp. 1-8
Author(s):  
Mohammad Alian ◽  
Homayoon Oraizi ◽  
Ayaz Ghorbani ◽  
Ali Abdolali
Keyword(s):  
Plane Wave ◽  
Scattered Field ◽  
Near Field ◽  
Wave Incidence ◽  
Plane Wave Incidence

LOW-FREQUENCY ACOUSTIC SCATTERING BY AN INHOMOGENEOUS MEDIUM

2005 ◽  
Vol 15 (10) ◽  
pp. 1459-1468 ◽  
Author(s):  
GEORGE VENKOV
Keyword(s):  
Refractive Index ◽  
Plane Wave ◽  
Inhomogeneous Medium ◽  
Acoustic Waves ◽  
Spherical Wave ◽  
Low Frequency ◽  
Far Field ◽  
Scattering Medium ◽  
Wave Incidence ◽  
Plane Wave Incidence

This paper deals with the scattering of time-harmonic acoustic waves by inhomogeneous medium. We study the problem to recover the near and the far field using a priori information about the refractive index and the support of inhomogeneity. The incident spherical wave is modified in such a way as to recover the plane wave incidence when the source point approaches infinity. Applying the low-frequency expansions, the scattering medium problem is reduced to a sequence of potential problems for the approximation coefficients in the presence of a monopole singularity located at the source of incidence. Complete expansions for the integral representation formula in the near field as well as for the scattering amplitude in the far field are provided. The method is applied to the case of a spherical region of inhomogeneity and a radial dependent refractive index. As the point singularity tends to infinity, the relative results recover the scattering medium problem for plane wave incidence.

Optimal Design of a RFID Tag Antenna Based on Plane-Wave Incidence

2012 ◽  
Vol 48 (2) ◽  
pp. 795-798 ◽  
Author(s):  
Jin-Kyu Byun ◽  
Nak-Sun Choi ◽  
Dong-Hun Kim
Keyword(s):  
Optimal Design ◽  
Plane Wave ◽  
Rfid Tag ◽  
Wave Incidence ◽  
Plane Wave Incidence

Influence of Plane-Wave Incidence Angle on Whole Body and Local Exposure at 2100 MHz

2011 ◽  
Vol 53 (1) ◽  
pp. 48-52 ◽  
Author(s):  
Emmanuelle Conil ◽  
Abdelhamid Hadjem ◽  
Azeddine Gati ◽  
Man-Fai Wong ◽  
Joe Wiart
Keyword(s):  
Plane Wave ◽  
Incidence Angle ◽  
Whole Body ◽  
Local Exposure ◽  
Wave Incidence Angle ◽  
Wave Incidence ◽  
Plane Wave Incidence

scholarly journals Optical Response to Submicron Digital Elements Simulated by FDTD Wavelets with Refractive Impulse

2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
Antony J. Bourdillon
Keyword(s):  
Finite Difference ◽  
Plane Wave ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Optical Response ◽  
Optical Elements ◽  
Evaluation Program ◽  
Difference Time ◽  
Wave Incidence ◽  
Plane Wave Incidence

Accurate simulation from digital, submicron, optical elements is obtained by finite difference time domain (FDTD) results that are phase analyzed as sources for Huygens wavelets on fine scales much shorter than the wavelength used. Results, from the MIT electromagnetic evaluation program, are renormalized by a method here called “refractive impulse.” This is valid for polarized responses from digital diffractive and focusing optics. The method is employed with plane wave incidence at any angle or with diverging or converging beams. It is more systematic, more versatile, and more accurate than commercial substitutes.

Unconditionally Stable Associated Hermite FDTD With Plane Wave Incidence

2016 ◽  
Vol 15 ◽  
pp. 938-941
Author(s):  
Zheng-Yu Huang ◽  
Li-Hua Shi ◽  
Qing Si ◽  
Bin Chen
Keyword(s):  
Plane Wave ◽  
Unconditionally Stable ◽  
Wave Incidence ◽  
Plane Wave Incidence
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