نتایج جستجو برای: antenna phased array
تعداد نتایج: 175671 فیلتر نتایج به سال:
Energy-Efficient 60GHz Phased-Array Design for Multi-Gb/s Communication Systems by Lingkai Kong Doctor of Philosophy in Electrical Engineering and Computer Science University of California, Berkeley Professor Elad Alon, Chair Recent advance in wireless technologies has enabled rapid growth of mobile devices. Consequently, emerging applications for mobile devices have begun demanding data rates ...
This paper investigates the calibration methods appropriate to phased array in practical measurement setups. The rotating element electric field vector (REV) method, fast amplitude-only and complex amplitude method are compared analyzed same setup. objective is investigate robustness of discussed algorithms with different ranges, or without support on/off operation. A 4×8 uniform rectangular (U...
A new adaptive antenna array architecture for lowearth-orbit satellite ground stations is being investigated. These ground stations are intended to have no moving parts and could potentially be operated in populated areas, where terrestrial interference is likely. The architecture includes multiple, moderately directive phased arrays. The phased arrays, each steered in the approximate direction...
Antenna tilt angles having a relation to element spacings are among the important radar design parameters. The optimum tilt angles are derived theoretically: four types of uniform and nonuniform linear arrays are considered and Chebyshev array factors are used as a nonuniformly excited array case.
Phased arrays in CMOS for consumer communication bands aim to enhance receiver performance by exploiting beamforming with antenna arrays. Sensitivity increases with the number of antenna elements through array gain and interferers can be cancelled through the spatial filtering of the beam pattern [1]. For the latter, the linearity of the receiver before the beamforming summing point becomes a b...
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