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ARTICLES

Generating a Plane Wave in the Near Field with a Planar Array Antenna

This article presents a method of generating an approximate plane wave in the near field using a planar phased array antenna. Optimized complex array weights are found using a genetic algorithm and a least squares solution. The genetic algorithm (GA) p...
Measuring far field antenna patterns requires separating the transmit antenna and the antenna under test (AUT) by a large distance in order to minimize the field amplitude and phase variations across the test aperture. When the AUT is many wavelengths across, the far field distance becomes quite large. Thus,...
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