All you need to Know about Discone Antenna - PowerPoint PPT Presentation

About This Presentation
Title:

All you need to Know about Discone Antenna

Description:

A discone antenna is a kind of biconical antenna in which one cone is replaced with a disk. This disk is tied on the top of the cone. These antennas contain a solid metal disk on the top of a solid metal cone. Discone antennas receive bands between 140 and 500 MHz. – PowerPoint PPT presentation

Number of Views:7
Slides: 5
Provided by: antennaexperts
Category:
Tags:

less

Transcript and Presenter's Notes

Title: All you need to Know about Discone Antenna


1
Everything you need to Know about Discone
Antenna For many years, the Discone Antenna is
used for gaining better radio communication. It
is a kind of biconical antenna where one cone is
replaced with a disk which is generally mounted
on the top of the cone. This blog describes the
Discone antenna, its features, history, benefits,
and disadvantages of an antenna. We will also
discuss many other things related to this
antenna. What Is a Discone Antenna? A discone
antenna is a kind of biconical antenna in which
one cone is replaced with a disk. This disk is
tied on the top of the cone. These antennas
contain a solid metal disk on the top of a solid
metal cone. Discone antennas receive bands
between 140 and 500 MHz. These antennas work with
local repeaters only when there are strong
signals. They contain rods that help to decrease
wind loading. Apart from that, the rods also
simplify construction. This is the reason why
many discone antennas are built by new radio
operators. You can make the ribs of the discone
antenna with the help of stiff wire or brazing
rods. In a discone antenna, you can use between 6
and 16 rods. History of Discone Antenna Now, let
us discuss something about the history of a
discone antenna. This antenna was made by Armig
Kandoian in the year 1945 after getting the
patent. Discone antenna was mainly used in
aircraft communication and finding directions.
It was widely used by the military. Another name
for discone antennas is discone aerial
antenna. Use of Discone Antennas After
discussing the meaning of discone antenna, let us
discuss the different uses of a discone antenna.
This antenna is mainly used for monitoring and
radio scanning. They are not much used in RF
transmissions.
2
A discone antenna is widely used for UHF and VHF
applications where the signal is near the ground
level because these antennas have low angles of
reception and radiation. The radiation angle
increases slightly at the top of the frequency
range of an antenna. Wi-Fi antenna is a kind of
discone antenna used in many indoor applications.
It is generally made of solid sheet
metal. Components of a discone antenna A
Military Discone Antenna contains 3 major
elements the cone elements, the insulator, and
the disc elements. In these components, the
insulator size governs the number of factors of
the antenna performance. The insulator is
developed from insulating material and holds the
disc and cone elements in one place. The
distance is the factor that determines the
overall frequency range of an RF antenna design.
The cone elements must be a quarter wavelength
at the minimum operating frequency. The diameter
of the top of the cone depends on the diameter of
the coaxial cable used. This determines the
upper-frequency limit of the antenna. The small
diameter has a high frequency. The diameter is
about 15 millimeters for many designs operating
in the VHF/UHF area of the radio spectrum. The
space between the cone and the disc must be a
quarter of the inner diameter of the
cone. Advantages of Discone Antennas Discone
antennas are widely used in radio communication.
Now, we will further discuss the Benefits of
Discone Antennas in detail in this section 1.
Omnidirectional antenna One of the major benefits
of a discone antenna is that it is an
omnidirectional antenna. It helps to gain strong
signals from multiple directions. Besides, the
antenna also has a frequency range ratio of 101.
You can purchase discone
3
  • antennas with a frequency range between 30 and
    1300 MHz. There is no need to point this antenna
    toward the source of the signals.
  • Sensitive to distant signals
  • Wide Band Discone Antenna generally contains a
    very narrow radiation pattern. Due to the narrow
    pattern, this antenna does not work properly in
    long-distance areas. It is mainly used in indoor
    applications like radio and transmitters.
  • Works in every kind of weather
  • A UHF Discone Antenna is designed with the help
    of a high-grade metal sheet. This antenna can
    work in any kind of weather. It does not rust due
    to water, sun rays, moisture, dust, or
    pollutants. This antenna can work even in heavy
    snowfall or harsh weather conditions.
  • No ground station connection
  • One of the best points of discone antennas is
    that they do not need any ground station
    connection. You can use this antenna without any
    special equipment or tools. It is a good antenna
    that is easy to install and use for anyone.
  • Easy to handle
  • It is very simple to handle this discone antenna
    because of its basic design. You can carry it
    anywhere easily because of its compactness.
    Besides, the antenna also has a speedy
    installation for various applications.
  • Disadvantages of Discone Antennas
  • Now, let us discuss the disadvantages of Discone
    Antennas in detail in this section.
  • The Ultra-wide Discone Antenna is very sensitive
    to higher frequencies. You must choose the
    higher ones and not the lower ones.
  • A VHF Discone Antenna is not used for
    transmitting and used only for receiving signals.

4
  • Discone antennas work only with the help of the
    latest developments and technologies.
  • You cannot carry a discone antenna everywhere.
  • These antennas are omnidirectional and can emit
    signals from all the directions. They will not
    work in narrow areas where you need signals from
    one direction.
  • Final words
  • This is all about a discone antenna, its
    features, advantages and disadvantages. It can
    be used for VHF and UHF applications and many
    other indoor applications. A discone antenna can
    be used in many areas such as amateur radio,
    military, radio scanner applications and
    military.
  • The antenna operates on a frequency range between
    20 MHz and 6000 MHz to transmit and receive
    signals. It can be used for oceans and arctic
    regions where snowfall is the main issue. This
    antenna stops unwanted emissions and gives
    better performance than other kinds of antennas.
    It is one of the best antennas to use in
    military and commercial regions.
Write a Comment
User Comments (0)
About PowerShow.com