Floating Hemispherical Helical Antenna: Analysis of Gain, Efficiency and Resonant Frequency
File version
Version of Record (VoR)
Author(s)
Espinosa, Hugo G
Thiel, David
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
Size
File type(s)
Location
Abstract
This paper reports the effect of seawater conductivity on gain, efficiency and resonant frequency of a hemispherical helical antenna. The size of the copper ground plane for the hemispherical antenna can be reduced using conductive seawater as part of the ground plane for the antenna. Seawater increases the gain from 6 dBi to 8 dBi but with a decreased efficiency. The simulated radiation efficiency of the antenna on water surface is 61%. This paper also reports the design of a low cost floating buoy. The buoy provides a waterproof setup for the circuitry and antenna. The buoy can be effectively used for shallow water coastal monitoring.
Journal Title
Radioengineering
Conference Title
Book Title
Edition
Volume
27
Issue
4
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
© The Author(s) 2018. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Item Access Status
Note
Access the data
Related item(s)
Subject
Electronics, sensors and digital hardware not elsewhere classified
Communications engineering
Electronics, sensors and digital hardware