far-field antenna patterns
2D and 3D Far-Field Radiation Patterns Reconstruction Based on Compressive Sensing
... of far-field radiation patterns is time consuming and ...radiation patterns is proposed where random far-field samples are measured to reconstruct two-dimensional (2D) or three-dimensional (3D) ...
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Broadband Coplanar Waveguide-Fed Wide-Slot Antenna
... wide-slot antenna, fed by coplanar waveguide (CPW), is ...slot antenna using both measurement and simulation, is about 131% ...the antenna has low cross polarization, relatively high gain, and it ...
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Far-Field Symmetry Analysis and Improvement of the Cavity Backed Planar Spiral Antenna
... the patterns asymmetry at this ...The far-field pattern becomes more ...the antenna height will ...the antenna height in a practical ...
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Some Far Field Features of Cylindrical Microstrip Antenna on an Electrically Small Cylinder
... thickness is d = 0.0795 cm. According to [14], the resonant frequencies in z- and ϕ-polarization cases are, respectively, f = 3.28 and 2.46 GHz. When the radiation pattern is considered in power terms, the features of P ...
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Multilayer Dielectric Resonator Antenna Transmitarray for Near-Field and Far-Field Fixed RFID Reader
... polarization patterns for the transmitarray in different planes at ...The field computation are based on full- wave analysis of the problem and is take into consideration the effect of the mutual coupling ...
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Dual Band David Fractal Microstrip Patch Antenna for GSM and WiMAX Applications
... The measured far field radiation patterns of the dual band David fractal first level iterated antenna in the E plane y-z plane and H plane x-z plane are plotted at the frequency of 1.79 [r] ...
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Three-dimensional Simulation of the Field Patterns Generated by an Integrated Antenna
... electromagnetic field pat- terns generated by integrated antennas used in mobile phones, for example, is fundamental to understand- ing their transmission characteristics and thereby en- gineering designs that ...
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A Novel Single Feed Omnidirectional Circularly Polarized Antenna with Wide Ar Bandwidth
... measured far field radiation patterns at ...the patterns look quite monopole-like, and the difference is that the proposed antenna radiates circularly polarized wave when compared with ...
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Phaseless spherical near-field antenna measurements for low and medium gain antennas
... of antenna radiation patterns by measurements in the near-field and a following near-field far-field transformation require accurate amplitude and phase ...
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Phase Shifting Holography for THz Near-Field/Far-Field Prediction
... THz antenna near-field/far-field prediction, this communication derives general analytic expressions for calibrated phase shifting holography (PSH) and introduces a new 120 ◦ three-step PSH ...
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Experimental Results on Hiperlan/2 Antennas for Wearable Applications
... microstrip antenna (# 5) is subjected to far-field radiation pattern measurements at its measured resonant ...measured far-field patterns of this circular shaped wearable ...
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A CP Antenna of Wide Half-Power Beamwidth for UHF RFID Near- and Far-Field Applications
... Current distributions including CP and ODC respectively and designing thought are shown. In Fig. 2, the currents rotate in a clockwise direction, and the antenna excites LCHP radiation. Opposite directed currents ...
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Study of the Radiated Polarization of an Antenna Array with Circular Geometry
... an antenna element inside the array, the entire far field pattern including coupling between elements could be ...An antenna array of 4× LPDA has been built and ...The antenna array can ...
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A Compact UWB Antenna Design Using Rounded Inverted L-Shaped Slots and Beveled Asymmetrical Patch
... To analyze the time-domain characteristic of the antenna, group delay and fidelity factor parameters are investigated. These time-domain characteristics determine the signal distortion which an antenna adds ...
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Evaluation of the Far Field Radiated by Long Antennas Directly from Data Acquired through a Fast Helicoidal Scanning
... 2.2. Nonredundant Sampling Representation on a Cylinder Let us consider an elongated AUT, enclosed in a convex domain bounded by a surface Σ with rotational symmetry, and a nondirective probe scanning a proper helix ...
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Investigation of Antenna Array Configurations Using Far-Field Holographic Microwave Imaging Technique
... element antenna arrays, the spiral and random antenna arrays deliver clearer and more accurate images than the regularly spaced ...Random antenna array also provides the highest value of U - V ...
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Conical Linear Spiral Antenna for Tracking, Telemetry and Command of Low Earth Orbit Satellites
... the field radiated from the conical spiral antenna, two helical antennas of opposite winding directions and almost circular polarization are ...radiation patterns are measured and plotted as shown in ...
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Low divergence single-mode surface-emitting concentric-circular-grating terahertz quantum cascade lasers
... the far- field, each of which has a divergence angle within ...the far-field pattern from the expected ring shape is attributed to the boundary deformation of the active region, caused by the ...
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MIMO Antenna Array Configuration for Minimum Mutual Coupling
... same antenna element as a unit cell for the MIMO ...the antenna is 0.015mm. The antenna takes the shape of a trapezoidal as demonstrated in Figure ...the antenna are listed in Table ...
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A Linearly Polarized Rectenna for Far-Field Wireless Power Transfer
... Microstrip antenna along with rectifier circuit is proposed for wireless power transmission in the far field ...insitable antenna and an external ...yagi antenna is used to increase the ...
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