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Phased-Array Antenna Patterns

This six-part series examines phased-array antenna patterns.
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Aug. 18, 2020

As phased arrays begin to include more mixed-signal and digital content, many engineers can benefit from a more intuitive explanation of phased-array antenna patterns. It turns out that many analogies exist between the behavior of phased-array antennas and the discrete time-sampled systems that the mixed-signal and digital engineers work with every day.

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In this first of six articles, learn some of the basics of phased-array antenna patterns, starting with the simpler example of a linear array.
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Part 2 of this six-part series takes a look at antenna gain, directivity, and aperture, in addition to array factors.
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Part 3 of this six-part series covers beamwidth, combining element and array factors, and antenna plots.
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This latest installment in the series examines the topic of grating lobes with a focus on element spacing.
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In Part 4 of this series on phased-array antenna patterns, we covered grating lobes. Part 5 turns its attention to beam squint: changes in beam angle as a function of frequency...
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This sixth installment closes out the series on phased-array antenna patterns with a discussion of antenna sidelobes and the effect of tapering across an array.

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