back-to-back phased array antennas
Enhancing the Directivity of Phased Array Antennas Using Lens-Arrays
... Abstract—Small phased-array antennas can be combined with dielectric lenses or planar lens-arrays to form directive beam-steering ...the phased array, but it also reduces its scan field ...
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Knowledge-Aided (Potentially Cognitive) Sidelobe Nulling on Transmit for Mechanical Distortions of Phased Array Antennas
... Abstract—Mechanical distortions of phased array antennas make transmit pattern distort. The transmit pattern cannot be simply calibrated by compensating the position error of each element since the ...
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Understanding and optimizing microstrip patch antenna cross polarization radiation on element level for demanding phased array antennas in weather radar applications
... In Fig. 10a the cross section of the hole plugged probe feed is graphed. After drilling the via holes into the multilayer sub- strate the walls of the holes are galvanized with copper to connect the upper and lower RF ...
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A Flexible Integrated Photonic True Time Delay Phaser for Phased Array Antennas
... Regarding the systematic errors, since these involve the control of the amplitude distribution, a preliminary observation is in order. Generally speaking, apart from the systematic errors, the control of the amplitude of ...
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Innovative Tiling Methodologies for the Synthesis of Phased Array Antennas for Advanced Radar and Communications Systems
... ). While dierent solutions an have the same SLL value, only a subset of the T sub-array ongurations guarantees performane lose to that of the referene fully-populated array ( SLL th = −20 dB ). More in ...
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Wide Scanning Phased Array Antenna Using Printed Dipole Antennas with Parasitic Element
... Phased array antennas using printed dipole antennas are required to scan large ...an array antenna capable of electronic beam scanning with small deviation in antenna gain at large ...
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Method of Moment Analysis of Finite Phased Array of Aperture Coupled Circular Microstrip Patch Antennas
... the phased array antennas [1–4], general analysis of phased array [5–8] and analysis of printed phased arrays such as probe fed dipole and rectangular patch antenna in an infinite ...
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Optical phase synchronization in coherent optical beamformers for phased array receive antennas
... SATCOM For enhanced airbone communication, antenna systems with broadband SATellite-based COMmunication (SATCOM) capabilities are required. Nowadays, satellite tracking is achieved most of the time by mechanically ...
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A Novel Networking Scheme for Mobile Communication Based on Phased Array Antenna
... with phased array antennas, which requests a Mobile user (MU) selects a Base Station (BS) according to both distance in between and angles of beams produced by nodes in the same ...
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ENERGY EFFICIENT DISTRIBUTED IMAGE COMPRESSION USING JPEG2000 IN WIRELESS SENSOR NETWORKS (WSNS)
... Phased array system has been proposed in the 1950’s and is widely used in communication and radar ...applications, phased array systems have been employed on either the transmitter or receiver ...
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Moving Target Indication via RADARSAT-2 Multichannel Synthetic Aperture Radar Processing
... with phased array antennas and multiple receiver channels, synthetic aperture radar, ground moving target indication (SAR-GMTI) data are now routinely being acquired from ...
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Coplanar MEMS Phased Array Antenna Using Koch Fractal Geometry
... phase array system including phase shifter blocks and antenna elements has been developed on a coplanar waveguide (CPW) using micro electromechanical system (MEMS) ...
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Navigating Earthquake Physics with High-Resolution Array Back-Projection
... MUSIC back-projection results, the domi- nant distribution of the seismic radiation in the down-dip region is clear in all frequency bands at both arrays, except in the 8~16 s band which shows linear patterns ...
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Back Radiation Reduction in Patch Antennas Using Planar Soft Surfaces
... A planar version of soft surfaces has been used to reduce back radiation in a patch antenna. Not only this goal has been achieved, also further information on the better way of reducing such radiation has been ...
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Phased arrays: A strategy to lower the energy threshold for neutrinos
... prototypical phased array system, which is described in more detail in ...the array was 96 m below the surface of the ice. RF signals from the antennas were carried along 100-m lengths of ...
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Broadband Aperture-Coupled Microstrip Antennas with Low Cross Polarization and Back Radiation
... considerable back radiation will be produced by the resonant slot, and the thicker the foam material, the more the back ...larger back radiations and its front-to-back ratio is about ...
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Designing the efficient dfig system back to back converter to replace lcl with llcl filter
... effectiveness of the designed filters in attenuating harmonics produced by the back-to-back converter. Compared LLCL with the LCL-filter, an advantage of the A higher order passive power filter ...
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Back-to-back contracteren bij distributie
... onverkort back-to-back worden ...een-op-een back-to-back doorzet naar al zijn afnemers, dan is de maximale exposure van de distributeur vanwege het grote aantal afnemer navenant ...
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Bandwidth And Gain Enhanced Of Patch Antenna With Metamaterial Waveguide
... The patch antenna also is known as microstrip antenna. The MPA is developed in early 1980, well known as one port device. There are four basic categories of microstrip antenna which can be list as MPA, microstrip ...
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A Survey on Beam Steering Techniques in Planar Antennas
... microstrip antennas and are compared based on the figure of ...steerable antennas is generating lots of interest as efforts are being made to develop an optimum beam steering solution at millimetre wave ...
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