ELECTROMAGNETIC ENERGY FLOW PATTERN ON THE AXIS OF A CIRCULAR DISK BY TRANSIENT EXCITATION

Zhu Xianyang; Wang Wenbing; Ren Lang

Volume 16 Issue 3

May 1994

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Article Navigation > Journal of Electronics & Information Technology > 1994 > 16(3): 244-251

Zhu Xianyang, Wang Wenbing, Ren Lang . ELECTROMAGNETIC ENERGY FLOW PATTERN ON THE AXIS OF A CIRCULAR DISK BY TRANSIENT EXCITATION[J]. Journal of Electronics & Information Technology, 1994, 16(3): 244-251.

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Zhu Xianyang, Wang Wenbing, Ren Lang . ELECTROMAGNETIC ENERGY FLOW PATTERN ON THE AXIS OF A CIRCULAR DISK BY TRANSIENT EXCITATION[J]. Journal of Electronics & Information Technology, 1994, 16(3): 244-251.

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ELECTROMAGNETIC ENERGY FLOW PATTERN ON THE AXIS OF A CIRCULAR DISK BY TRANSIENT EXCITATION

Zhu Xianyang^{①;汪文秉},
Wang Wenbing,
Ren Lang

Received Date: 1992-07-15
Rev Recd Date: 1993-03-10
Publish Date: 1994-05-19

Abstract

Abstract

The exact energy flow pattern on the axis of a circular disk by transient excitation is presented. It is shown that non-decaying region does not appear when the source is chosen to be a rectangular pulse, on the contrary, there exists a uprising region on the axis when the width of the pulse is less than a/c. After reaching its maximum value, the energy decays slowly until the law of r-2 is met. The scale of the uprising region is dependent upon the size of the antenna and the width of the pulse. The energy flow line tube excited by a harmonic wave is also given. It is also shown that there is a oscillatory region near the source, the amplitude is also uprising, which is quite different compared with the conclusion drawn by S. Silver (1949). Finally, the phenomenon of energy uprising in time domain is explained and some problems about the electromagnetic missiles are also expounded.

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References(1)

References

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