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Advanced planar near-field antenna measurements

Advanced planar near-field antenna measurements

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This chapter presents a brief introduction to a number of the more advanced, and more recently developed topics associated with planar near-field antenna measurements. These include (1) active alignment correction which seeks to improve the accuracy with which the boresight direction of an antenna is known, (2) position correction techniques for improving the flatness and straightness of the sampling grid, (3) phase recover which enables measurements to be made, where obtaining a direct phase reference would be impractical, (4) microwave holographic metrology (MHM) which is used for performing aperture diagnostics, (5) auxiliary translation and auxiliary rotation which are used to minimise truncation and (6) the poly-planar technique that is used to mitigate measurement truncation.

Inspec keywords: antenna theory; planar antennas

Other keywords: sampling grid; truncation minimization; aperture diagnostic; alignment correction; position correction technique; boresight direction; planar near-field antenna measurement; microwave holographic metrology; measurement truncation; phase recover; auxiliary rotation; auxiliary translation; polyplanar technique

Subjects: Antenna theory

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