Accession Number:

ADA093305

Title:

A Hybrid Method of Moments Technique for Computing Electromagnetic Coupling between Two Monopole Antennas on a Large Cylindrical Surface.

Descriptive Note:

Technical rept.,

Corporate Author:

OHIO STATE UNIV COLUMBUS ELECTROSCIENCE LAB

Personal Author(s):

Report Date:

1980-04-01

Pagination or Media Count:

91.0

Abstract:

The hybrid technique presented in this paper is a method for solving electromagnetic problems in which an antenna or other discontinuity is located on or near a conducting body, such as antennas on aircraft or ships. The technique solves these kinds of problems by properly analyzing the interaction between the antenna or scatterer and the conducting body. The hybrid technique accomplishes this by casting the antenna structure in a moment method format and then modifying that format to account for the effects of the conducting body via the geometrical theory of diffraction GTD. The technique extends the moment method to handle many problems that cannot be solved by GTD or the moment method alone. In general, arbitrary radiators located on or near canonical shapes or combinations thereof can be solved using the hybrid technique. Electromagnetic parameters which the hybrid technique can solve for include the near and far fields, current distributions, impedances, and scattering data. In this paper, a transmitting and receiving monopole antenna, located on the surface of a perfectly-conducting circular cylinder, are analyzed to determine the amount of radiated power which arrives at the receiving antenna, after accounting for the reflection and curved surface diffraction effects of the conducting cylinder. Author

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE