Accession Number:

AD0265853

Title:

A VARIATIONAL SOLUTION FOR THE SCATTERING OF ELECTROMAGNETIC PULSES FROM A CYLINDER OF FINITE LENGTH

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV BERKELEY ELECTRONICS RESEARCH LAB

Personal Author(s):

• WELCH,W.J.

Report Date:

1961-08-11

Pagination or Media Count:

1.0

Abstract:

The problem of the scattering of an essentially plane electromagnetic pulse by a thin metallic cylinder of finite length is treated by means of a variational formula derived in an earlier paper IRE PGAP Vol. AP-8, No. 168, Jan. 1960. The pulse is a delta function, and it is assumed that the current induced on the scatterer is a damped sinusoid with the frequency of oscillation such that the cylinder is one half wavelength long and the damping due to radiation. The characteristic damping is calculated by a related variational technique. The time dependence of the echo at a large distance from the cylinder is plotted for two different thicknesses of the cylinder. Author

Descriptors:

• *ELECTROMAGNETIC RADIATION
• *SCATTERING
• CONDUCTIVITY
• CYLINDRICAL BODIES
• DAMPING
• ECHO RANGING
• ELECTROMAGNETIC WAVE REFLECTIONS
• PARTIAL DIFFERENTIAL EQUATIONS
• PULSE GENERATORS
• RADAR CROSS SECTIONS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE