SHF HELICAL ANTENNA
Antennas Glossary
Antennas — SHF Helical Antenna
Information on SHF Helical Antenna
An SHF helical antenna is constructed using a helix
of wire that is fed at one end and unconnected
at the other.
The bandwidth of an antenna may be
increased by increasing its thickness or surface area. The same
result may be obtained by making a UHF helical antenna.
When the circumference of the SHF helical antenna is
increased to above one wavelength, the axial mode of radiation
is increased. When the helix circumference is smaller than a
wavelength, the radiation pattern is similar to a dipole.
The
SHF helical antenna is one of the simplest to
construct since the dimensions are not critical. Generally, the SHF
helical antenna consists of a helix of thick wire
or rod, connected to the inner conductor of a coaxial
line, and a ground-plane screen connected to the braid.
Other topics in our resources on Antennas related to SHF Helical Antenna include:
|
|
|
Please contact Argos Press if you would like to propose related entries for these glossaries. Please also contact Argos Press Pty Ltd to request information on licensing content from this web site (including this entry on SHF Helical Antenna). © Argos Press Pty Ltd, Canberra, 2003-2004. All rights reserved.