منابع مشابه
Microwave Integrated Phased-array Transmitters in Silicon Thesis By
Phased-array systems, a special case of multiple-input-multiple-output (MIMO) systems, take advantage of spatial directivity and array gain to increase spectral efficiency. Implementing a phased-array system at high frequency in a commercial silicon process technology presents several challenges. This thesis focuses on the architectural and circuit-level trade-offs involved in the design of the...
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This article presents a phased array antenna employing MEMS phase shifter. The proposed phased array antenna consists of eight square patch antennas operating at 10.4 GHz with a bandwidth of 400 MHz. Feed line for each patch passes through a MEMS phase shifter realized by a series of bridges above the transmission line. The distance between the bridge and the transmission line underneath it is ...
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Several applications for solid-state, random access beam directors have emerged in recent years, including scanners, laser radar components, interconnects, elements for addressing holographic storage, beam routing devices, and adaptive switching networks. We discuss implementation of optical phased arrays using a liquid crystal on silicon approach. By using very large scale integration (VLSI) t...
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Optical wireless links can offer a very large bandwidth and can act as a complementary technology to radiofrequency links. Optical components nowadays are however rather bulky. Therefore, we have investigated the potential of silicon photonics to fabricated integrated components for wireless optical communication. This paper presents a two-dimensional phased array antenna consisting of grating ...
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In phased array antennas, the number of radiator rows is one of the important factors to minimizing both cost and weight. Therefore, the antenna tilt angles having relation with the element spacing are among the important design parameters. In this paper, the optimum tilt angles for several types of dipole planar arrays are investigated theoretically. To obtain optimum tilt angles, the directiv...
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ژورنال
عنوان ژورنال: IEEE Communications Magazine
سال: 2004
ISSN: 0163-6804
DOI: 10.1109/mcom.2004.1321403