Numerical analysis of Double Delta antennas, Volume I and II
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Authors
Chafid, Achmad
Subjects
Advisors
Adler, Richard W.
Breakall, James K.
Date of Issue
1988-12
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
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.
Type
Thesis
Description
Includes Volumes I and II
Series/Report No
Department
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
2 v. ill.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.