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Defining Phased Array Bandwidth
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DOI：10.1109/MAES.2022.3226699.png)
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Abstract
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Phased arrays play an increasingly important role in communications and radar systems. These systems require wideband signals to achieve the desired high-performance goals. A phased array's bandwidth depends on much more than the bandwidth of its components. When designing phased arrays, the traditional time-harmonic analysis methods do not capture all of the frequency performance constraints imposed by the array architecture. Grating lobes limit the maximum element spacing, while pulse/symbol dispersion and beam squint limit maximum array size and bandwidth. Hardware frequency limits bound the operating bandwidth of the array. This article discusses time-dependent performance concerns of phased arrays that limit bandwidth, such as the constraints imposed on scan angle, frequency bandwidth, beam squint, dispersion, and hardware.
Keywords:
Bandwidth
Phased arrays
Antenna arrays
Wideband
Antennas
Gratings
Arrays
antenna arrays
phased arrays
bandwidth
wideband
scanning
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3.8
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2.1K
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2.5K
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