Document Type

Thesis

Date of Award

5-31-1987

Degree Name

Master of Science in Electrical Engineering - (M.S.)

Department

Electrical Engineering

First Advisor

Gerald Martin Whitman

Second Advisor

Edip Niver

Third Advisor

Joseph Frank

Abstract

The analysis of thin wire antenna systems in the presence of a conducting ground plane is an important engineering problem. This thesis presents an analysis of wire radiators using the method of moments as implemented in the Mini-Numerical Electromagnetics Code (MININEC). Due to singularities in the formulation, MININEC yields inaccurate results for very thin wires. This code was modified by introducing filament currents for very thin wire structures thereby eliminating inaccuracy due to the treatment of singularities.

The modified code was tested on a monopole over a perfect ground, symmetrical and asymmetrical dipoles in free space, and inverted L and T antennas over a perfect ground. Results were compared to published reference solutions.

A complete listing of MININEC and the modifications, written in BASIC for the IBM Personal Computer are included.

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