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measured far-field data

Application of the Cosine Window Function with the Parameters Optimized by Genetic Algorithm in Bistatic Planar Near-Field Scattering Measurements

Application of the Cosine Window Function with the Parameters Optimized by Genetic Algorithm in Bistatic Planar Near-Field Scattering Measurements

... the measured scattered near-field data so as to reduce the truncation errors caused by finite scan plane and improve the measurement precision is a key problem with very important theoretical and ...

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Comparative Analysis of Propagation Path loss Models with Field Measured Data

Comparative Analysis of Propagation Path loss Models with Field Measured Data

... The proposed standards for the frequency bands below 11 GHz contain the channel models developed by Stanford University, namely the SUI models. Note that these models are defined for the Multipoint Microwave Distribution ...

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Far Field Pattern Reconstruction from Positioning Errors Affected Near Field Data Acquired via Helicoidal Scanning

Far Field Pattern Reconstruction from Positioning Errors Affected Near Field Data Acquired via Helicoidal Scanning

... the measured one, save for the peripheral zone wherein the error is caused both by the truncation of the scanning area and by the environmental ...the measured one is due to the filtering properties of the ...

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A Numerical Filter to Remove the Field Scattered by the Edges of a Finite Ground Plane from Measured Data

A Numerical Filter to Remove the Field Scattered by the Edges of a Finite Ground Plane from Measured Data

... Abstract—The measurement of the field radiated from an antenna placed above a finite ground plane experiences the effects of the field scattered by the edges of the ground plane. A new numerical method to remove these effects ...

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Broadband Coplanar Waveguide-Fed Wide-Slot Antenna

Broadband Coplanar Waveguide-Fed Wide-Slot Antenna

... and measured results of the return loss, gain, and far-field E- and H-plane radiation patterns of the designed antenna over the frequency band are ...

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Far-Field Reconstruction from a Minimum Number of Spherical Spiral Data Using Effective Antenna Modelings

Far-Field Reconstruction from a Minimum Number of Spherical Spiral Data Using Effective Antenna Modelings

... V measured by a nondirective probe has the same effective spatial bandwidth as the field, the theoretical results relevant to the nonredundant sampling representation of EM fields [8] can be ...

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Matrix Method for Antenna Plane Wave Spectrum Calculation Using Irregularly Distributed Near-Field Data : Application to Far-Field Assessment

Matrix Method for Antenna Plane Wave Spectrum Calculation Using Irregularly Distributed Near-Field Data : Application to Far-Field Assessment

... measurement data, by solving the inverse radiation problem using the method of moments (MoM) ...the far-field) by the equivalent currents depends on the chosen distribution and spatial positioning of these ...

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Evaluation of the Far Field Radiated by Long Antennas Directly from Data Acquired through
 a Fast Helicoidal Scanning

Evaluation of the Far Field Radiated by Long Antennas Directly from Data Acquired through a Fast Helicoidal Scanning

... voltage measured by a nondirective probe has the same effective spatial bandwidth of the AUT field [21], the nonredundant representations of EM fields [1] can be applied to ...

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A comparison of software- and hardware-gating techniques applied to near-field antenna measurements

A comparison of software- and hardware-gating techniques applied to near-field antenna measurements

... to far-field transformation algorithm is sensitive to amplitude and phase the near-field data should be acquired as accurate as ...the measured and computed far-field ...

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Spherical Near Field   Far Field Transformation for Quasi Planar Antennas from Irregularly Spaced Data

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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Limitations and improvements of the energy balance closure with reference to experimental data measured over a maize field

Limitations and improvements of the energy balance closure with reference to experimental data measured over a maize field

... Eddy flux measurements can be underestimated during periods with low turbulence and air mixing. This underestimation acts as a selective systematic error and it generally occurs during nighttime. Massman and Lee (2002) ...

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Electric field enhancement and far field radiation pattern of the nanoantenna with concentric rings

Electric field enhancement and far field radiation pattern of the nanoantenna with concentric rings

... [17]. One mode depends on the grating period and the other mode results from Fabry-Pérot-like resonance. In this paper, we adopted the concentric rings as the grating structures on the dielectric layer over the metallic ...

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Observation of ionospheric disturbances induced by the 2011 Tohoku tsunami using far field GPS data in Hawaii

Observation of ionospheric disturbances induced by the 2011 Tohoku tsunami using far field GPS data in Hawaii

... Similarly, to compare the period between the detected TIDs and the tsunami waves, the vTEC variation series derived from satellite PRN 22 using the observations in station AHUP and corresponding time-frequency dia- gram ...

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Experimental Results on Hiperlan/2 Antennas for Wearable Applications

Experimental Results on Hiperlan/2 Antennas for Wearable Applications

... speed data transmission (up to 54 Mbps), security support, mobility support and increased range upto 50 m. HiperLAN/2 band ranges from 5725 MHz–5875 MHz. For the wireless body-centric network to be accepted by the ...

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Localization for Mixed Near-Field and Far-Field Sources by Interlaced Nested Array

Localization for Mixed Near-Field and Far-Field Sources by Interlaced Nested Array

... etc. Far-field signal wave is seen as a plane, so we localize the far-field source only by estimating its direction of arrival ...for far-field sources such as MUSIC algorithms [1, 2], ESPRIT [3], and ...

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MIMO Antenna Array Configuration for Minimum Mutual Coupling

MIMO Antenna Array Configuration for Minimum Mutual Coupling

... Figure 2 (b) MIMO configuration 1 (after fabrication) For configuration 2, it is consisted of four antennas. The 1 st and the 4 th antenna are symmetrical and facing each other. The 2 nd and the 3 rd antenna are a 90 o ...

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Application of Weissberger Model for Characterizing the Propagation Loss in a Gliricidia sepium Arboretum

Application of Weissberger Model for Characterizing the Propagation Loss in a Gliricidia sepium Arboretum

... empirical field measurements of the received signal strength within the gliricidia sepium arboretum and then use the field measured data to tune the Weissberger and the Early ITU foliage ...

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Near  and Far Field Optical Response of Eccentric Nanoshells

Near and Far Field Optical Response of Eccentric Nanoshells

... the far and near ...electric field polarized in the X direction is placed at the top of the cell and the EM wave propagates along the Z direction, interacting with the ...

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Algebraic Algorithm for Mixed Near-Field and Far-Field Sources Classification and Localization

Algebraic Algorithm for Mixed Near-Field and Far-Field Sources Classification and Localization

... Passive mixed source localisation using a sensor array has many important application areas such as radar and sonar [1, 2]. For far-field (FF) sources, only DOA parameters are needed to be estimated. ...

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Near-Field-Far-Field Transformation Technique with Helicoidal Scanning for Elongated Antennas

Near-Field-Far-Field Transformation Technique with Helicoidal Scanning for Elongated Antennas

... — far-field transformation technique with helicoidal scanning is proposed in this ...field data when dealing with elongated ...the far-field reconstruction process and its stability with respect to ...

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