Abstract
Focusing a microwave antenna is often convenient in order to produce a Fraunhofer-type pattern at short distance from the aperture. The characteristics of the radiation patterns produced by some specimens were experimentally tested and compared with theoretical predictions. Basic criteria are given to design focused antennas, once their radiation pattern characteristics are specified.
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Moresco, M., Zilli, E. Focused aperture microwave antennas operating in the near field zone. Int J Infrared Milli Waves 3, 279–293 (1982). https://doi.org/10.1007/BF01007102
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DOI: https://doi.org/10.1007/BF01007102