Tutorial on slowly diffracting beams for radar applications

James F. X. Daum

doi:10.1117/12.59024

1 May 1992 Tutorial on slowly diffracting beams for radar applications

James F. X. Daum

Proceedings Volume 1631, Ultrawideband Radar; (1992) https://doi.org/10.1117/12.59024
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

A variety of novel solutions of the homogeneous free space wave equation and Maxwell's equations that predict a much slower energy decay than the observed classical 1/R squared far-field behavior of an electromagnetic wave from a finite source have appeared in the literature. Some of the more well publicized solutions are: electromagnetic missiles, electromagnetic directed energy pulse trains, Bessel beams, and electromagnetic bullets. We examine some of these issues via a tutorial examination of the underlying physics behind the slowly diffracting behavior of these localized propagating electromagnetic waveforms using electromagnetic engineering concepts that are familiar to radar engineers. We also investigate concepts that would be relevant to developing a radar which employed any of these localized electromagnetic energy forms such as the 'near-field' and 'far-field' behavior of these solutions, and any unique source requirements.

Citation Download Citation

James F. X. Daum "Tutorial on slowly diffracting beams for radar applications", Proc. SPIE 1631, Ultrawideband Radar, (1 May 1992); https://doi.org/10.1117/12.59024

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