far field
Flat Far Field Lenses and Reflectors
... a far-field lens, or a superlens, was proposed where the Pendry lens was used to enhance the evanescent spectrum coming out of the object and then a grating surface was used to convert the evanescent ...
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Vectorial Structure of a Phase-Flipped Gauss Beam in the Far Field
... In this paper, based on the vectorial angular spectrum representation and the method of stationary phase, internal vectorial structures of the phase-flipped Gauss (PFG) beam in the far field are derived in ...
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Multilayer Dielectric Resonator Antenna Transmitarray for Near-Field and Far-Field Fixed RFID Reader
... for far-field RFID ...near field-focused transmitarray are compared with that of the far field transmitarray designed at the same operating ...
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Near field/far field interface of a near surface low level radioactive waste site
... In order to demonstrate that all of the factors that could possibly affect the site have been evaluated, the PCRSA considers the Features, Events and Processes (FEPs) associated with the ...
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ATTENUATION FUNCTION RELATIONSHIP OF SUBDUCTION MECHANISM AND FAR FIELD EARTHQUAKE
... An attenuation relationship for far field earthquakes considered by subduction has been developed. The attenuation relationship function was developed using regression analysis. The database consisting of ...
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DOA estimation for far field sources in mixed signals with mutual coupling and gain phase error array
... of far-field sources in mixed far-field and near-field signals in the presence of mutual coupling and gain-phase imperfections is ...of far-field signals can be obtained ...
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A Linearly Polarized Rectenna for Far-Field Wireless Power Transfer
... This paper presents a insitable rectenna for far field wireless power transfer at 2.45GHz. We first designed an yagi uda antenna and simulated using high frequency structure simulator with improved ...
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Identification of Near-Field and Far-Field Using Confocal Microscopy Setup for Optical Sensing Applications
... became greater as distance x between lens and pinholes increased. We also discovered a significant finding where the field intensities I were decreased with increment of distance x for the near-field, and ...
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NUFFT-Accelerated Plane-Polar (Also Phaseless) Near-Field/Far-Field Transformation
... Abstract—The paper introduces the use of Non-Uniform Fast Fourier Transform (NUFFT) routines in “complex” (i.e., amplitude and phase) and phaseless Near-Field/Far-Field transformations. The use of ...
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Space-Time Matrix Method for Mixed Near-Field and Far-Field Sources Localization
... by constructing the cumulant domain data. After that, the ranges are estimated by constructing the mixed over complete basis to get the sparse representation of the receiving array output. A two-stage matrix differencing ...
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Near-field measurement of continuously modulated fields employing the time-harmonic near- to far-field transformation
... Abstract. Near-field far-field transformations (NFFFTs) are commonly performed for time-harmonic fields. Considering arbitrary in-situ measurement scenarios with given transmis- sion signals, ...
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The Far Field Pattern Analysis of Vertical and Horizontal Dipole Embedded in a Dielectric Slab
... the far field pattern can be simplified by using the reciprocity theorem and the known field distribution setup in the dielectric slab of incident plane ...
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Angle of Incidence Effects on Far-Field Positive and Negative Phase Blast Parameters
... For far-field loading the scaled arrival time is a function only of scaled slant distance, on account of the reflected shock not possessing sufficient velocity to overtake the incoming incident wave due to ...
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Near and far field aerodynamics in insect hovering flight: an integrated computational study
... and far-field aerodynamics in insect hovering flight using a biology-inspired, dynamic flight ...and far-field wake dynamics and shows the detailed three-dimensional (3D) near- and ...
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Frequency-Domain Blind Source Separation of Many Speech Signals Using Near-Field and Far-Field Models
... This paper is organized as follows. In Section 2, we review frequency-domain BSS and its inherent problems of permu- tation and scaling. In Section 3, we propose a method for lo- calizing source signals by using the ICA ...
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Spherical Near Field Far Field Transformation for Quasi Planar Antennas from Irregularly Spaced Data
... - far-field (NF - FF) transformation techniques [1-5] have been widely investigated in the last four dec- ades and used for applications ranging from cellular phone antennas to large phased arrays and ...
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Estimation of Far-field Coseismic Deformation Caused by the Recent Giant Earthquakes
... body, far-field coseismic offsets produced by these earthquakes at distances thousands of kilometers away from the earthquake rupture were shown to be over 1 mm [4, ...
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Exploring surface wave interaction with angled defects in the near and far field
... techniques. Far field effects, such as the reflection and transmission coefficients of a Rayleigh wave following interaction with a crack, are explored for a wide range of angles and ...
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Plasmonic Probe With Circular Nano Moat for far Field Free Nanofocusing
... optical field into localized energy and vice versa ...generating far-field free nanofocusing and collecting high signal-to-noise ration evanescent ...
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Some Peculiarities of Helicopter Main Rotor Aeroacoustic for Far-Field Observer
... As mentioned above the thickness noise level is determined by the rotor blade geometry and the rotor frequency. Analysis of the FW-H equation structure shows that the thickness noise for a far-field ...
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