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An antenna array (often called a 'phased array')
is a set of 2 or more antennas. The signals from the antennas are combined or
processed in
order to achieve improved performance over that of a single antenna. The antenna array can
be used to:
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increase the overall gain
provide diversity reception
cancel out interference from a particular set of directions
"steer" the array so that it is most sensitive in a particular direction
determine the direction of arrival of the incoming signals
to maximize the Signal to Interference Plus Noise Ratio (SINR)
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To understand antenna arrays, navigate through the following pages:
Basic Concepts and Intro to Antenna Arrays
Weighting Methods Used in Antenna Arrays
Geometry Optimization in Antenna Arrays
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