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Proceedings Paper

The Transverse Energy Pattern Of An Electromagnetic Missile From A Circular Current Disk
Author(s): Hao-Ming Shen; Tai Tsun Wu
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Paper Abstract

The electromagnetic field from the current in a circular disk and its Poynting vector off the axis of propagation have been investigated both analytically and experimentally. These studies show that the electromagnetic (EM) missile has the following properties: (1) The waveform of the EM field when propagating remains similar in shape but diminishes in size. (2) The transverse distribution of energy around the axis is stable; i.e., when the longitudinal distance increases, the transverse pattern of the energy remains the same. This "plane-wave beam-like" property is different from continuous-wave (CW) radiation, in which the energy pattern is like that of a spherical wave. (3) The transverse energy pattern has a cusp on the axis. This property is also different from CW radiation. With CW, the radiation has a flat top on the axis of the main lobe.

Paper Details

Date Published: 25 July 1989
PDF: 9 pages
Proc. SPIE 1061, Microwave and Particle Beam Sources and Directed Energy Concepts, (25 July 1989); doi: 10.1117/12.951815
Show Author Affiliations
Hao-Ming Shen, Harvard University (United States)
Tai Tsun Wu, Harvard University (United States)

Published in SPIE Proceedings Vol. 1061:
Microwave and Particle Beam Sources and Directed Energy Concepts
Howard E. Brandt, Editor(s)

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