Numerical analysis of Double Delta antennas, Volume I and II

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Author
Chafid, Achmad
Date
1988-12Advisor
Adler, Richard W.
Breakall, James K.
Metadata
Show full item recordAbstract
The Double Delta antenna is an HF communication antenna which exists in many
forms throughout military' communication commands. Performance characteristics for
existing designs are presently unknown and are required in order to recommend an optimum
design.
This thesis investigates Double Delta antennas used by the US Army (lowband and
highband), the US Air Force (lowband and highband), and a commercial model. Selected
models are analyzed by a computer simulation method using the Numerical
Electromagnetics Code (NEC). The antenna designs are investigated to determine optimum
performance characteristics over the 2 - 30 MHz range of frequencies. The parameters
calculated were input impedance. VSWR, and antenna gain radiation patterns.
For the performance of the antennas when sited near lossy ground, the Sommerfeld
method was employed. Finally the results of the evaluation are presented and recommendations
are made.
Description
Includes Volumes I and II
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