منابع مشابه
Millimetre-wave InP antenna for monolithic integration
Introduction: Millimetre-wave fibre wireless applications [1] could profit from a small antenna that can be fully integrated with the microwave and optical components of the system. This can lead to smaller and more cost-effective fibre-fed antenna units. Active integrated antennas [2] are another application that could benefit from a directly integrated antenna. Printed antennas are the obviou...
متن کاملSmart Antenna Systems
The following tutorial is an introduction to the essential concepts of smart antenna systems and the important advantages of smart antenna system design over conventional omnidirectional approaches. The discussion also differentiates between the various and often dissimilar technologies broadly characterized today as smart antennas. These range from simple diversity antennas to fully adaptive a...
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Smart Antenna with RF beamforming capability can greatly improve the performance of the vehicle communication system by providing better link quality and high immunity to interference. Butler Matrix is a well-known beamforming network. It can be used for multibeam antennas. The Butler Matrix increases the system capacity and provides higher signal to interference ratio, consequently enhancing t...
متن کاملSmart Antenna Systems
The following tutorial is an introduction to the essential concepts of smart antenna systems and the important advantages of smart antenna system design over conventional omnidirectional approaches. The discussion also differentiates between the various and often dissimilar technologies broadly characterized today as smart antennas. These range from simple diversity antennas to fully adaptive a...
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Smart Antennas (SA) and Multiple Input Multiple Output (MIMO) systems are considered as one of the key technologies for the third generation mobile communication systems and are now even being included in the UMTS standard [1]. With those technologies it is possible to improve the signal-to-noise ratio at the receiver and increase capacity in mobile radio systems. To test and evaluate new algor...
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ژورنال
عنوان ژورنال: III-Vs Review
سال: 2004
ISSN: 0961-1290
DOI: 10.1016/s0961-1290(04)00786-0