Measurements and Analysis of a Helical Antenna Printed on a Layered Dielectric Hemisphere

Radiation characteristics of a helical wire that is printed on the surface of a dielectric hemisphere have been studied theoretically and experimentally. Rigorous analyses have been performed using the method of moments (MoM). As expected, the dielectric hemisphere reduces the antenna's operati...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2011-12, Vol.59 (12), p.4831-4835
Main Authors: Latef, T. A., Khamas, S. K.
Format: Article
Language:English
Subjects:
Antenna measurements
Antenna radiation patterns
Antennas
Applied sciences
Dielectrics
Dyadic Green's function
Exact sciences and technology
Green's function methods
Helical antennas
moment method
Moment methods
Permittivity
Radiocommunications
spherical antennas
Telecommunications
Telecommunications and information theory
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Radiation characteristics of a helical wire that is printed on the surface of a dielectric hemisphere have been studied theoretically and experimentally. Rigorous analyses have been performed using the method of moments (MoM). As expected, the dielectric hemisphere reduces the antenna's operating frequency and bandwidth. Furthermore, it has improved the 3 dB circular polarization beamwidth considerably. Hemispherical structures that consist of one, or two, dielectric layers have been considered. The experimental and computed results are in close agreement with each other.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2011.2165491