What is a Monopole Antenna?

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• What is a Monopole Antenna?
• A Monopole antenna is half the size of a dipole
  antenna. It was first discovered by a radio
  expert Guglielmo Marconi in the year 1895.
  He patented this antenna after one year in
  1896. This radio expert was successful in
  performing various historical experiments in the
  field of radio communication.
• After the invention, the monopole antenna was
  also called as Marconi antenna. It is normally
  arranged above a conducting ground plane. Let us
  discuss the antenna in detail, its types, how it
  works, and the benefits of the monopole antenna.
• Different Types of Monopole Antenna
• Now, we will further discuss the various
  types of a monopole antenna in this
  section. The different kinds of monopole antennae
  are as under
• Helical antenna
• A helical antenna is a kind of antenna that
  contains one or more conducting wires wounded in
  a helix form. A helical antenna developed
  with one helical wire is
• called a monofil. On the other hand, helical
  antenna designed with 2 or more
• wires is known as bifilar.
• Inverted-F antenna
• Inverted F-antenna is used at UHF and
  microwave frequencies in the area of
• wireless communication. This antenna contains a
  monopole antenna that works parallel to the
  ground plane and is grounded at one end.
  It is widely used in military zones.
• Whip antenna
• The next type is the Whip Antenna. It is a
  very flexible antenna and does not break
  easily. This antenna mainly contains a straight
  flexible wire, and the bottom of the antenna is
  attached to the transmitter or receiver of the
  radio. Normally,
• the whip antennas are used in various radio
  bands such as UHF, VHF, and HF. They are
  widely used in devices such as walkie-talkies,
  Wi-Fi-enabled devices, and

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• Random wire antenna
• A random wire antenna is a kind of Monopole
  Antenna that contains a long wire
• that is suspended on the ground where the wire is
  straight. Efficiency in this wire changes from
  one fix to the second. This antenna is used as a
  receiving antenna on the short wave, medium wave,
  and long wave bands. Random wire antennas are
  used for temporary transmitting stations and
  small outdoor and indoor places.
• Mast Radiator
• A mast radiator is a kind of monopole antenna
  which is in the form of a radio mast or a
  radiating tower. It is generally used in
  transmitting antennas that work
• at low frequencies within LF and MF bands. Apart
  from that, the mast radiator is also used for AM
  radio broadcasting stations. This antenna is
  generally mounted
• on a nonconductive support to protect it from the
  ground.
• T-antenna
• T-antenna is a type of Monopole Antenna that
  includes multiple horizontal wires that are kept
  balanced between 2 radio masts. This antenna is
  used in LF, MF,
• VLF, and shortwave bands. It is used for
  amateur radio stations and AM
• broadcasting stations.
• Folded Unipole antenna
• A folded unipole antenna is a kind of monopole
  mast radiator antenna that is used as a
  transmitting antenna or AM radio
  broadcasting station. It contains a
• vertical metal rod or a mast that is
  attached to the grounding system that
  contains buried wires. It is one of the best
  Types of Monopole antenna used for
• FM broadcasting.

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• Rubber Ducky antenna
• A Rubber Ducky Antenna is a short antenna that
  works as a base-loaded whip
• antenna. It mainly contains a narrow
  helix-shaped wire closed within a rubber
  jacket to protect the antenna. It is widely used
  in handheld radio equipment at UHF and VHF
  frequencies.
• Benefits of Monopole Antenna
• Monopole antennas are used in different
  devices like FM radios, handheld devices, and
  so on. The different benefits of using a monopole
  antenna are
• It is very easy to build monopole antennas and
  they can be easily installed.
• A long monopole antenna provides better
  efficiency than a short monopole antenna.
• It is a cost-effective antenna to build and has a
  rugged construction.
• Monopole antennas can handle communication within
  any path except on the top of the antenna.
• A monopole antenna is a kind of omnidirectional
  antenna that requires less space.
• These antennas provide various benefits such as
  low profile, less weight, low cost, simple
  fabrication, and combination with other devices.
• A monopole antenna is normally used for a
  frequency that is shorter than 2/3rd of the
  wavelength.
• These antennas have higher reactive
  impedance above the frequency range.
• You do not need any special tools or
  equipment to install monopole antennas.
• They are widely used in various fields such as
  biomedical, space science, radar technology and
  research work.
• How does the Monopole Antenna Work?
• Monopole antennas work when the power is
  fed to the monopole. When the power is
  supplied to the Coaxial Monopole Antenna,
  it radiates signals in all

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Monopole Antenna has an omnidirectional
radiation pattern and it radiates signals
equally in all the directions at right angle to
the antenna. Radiated power from the monopole
antenna changes with elevation angle via the
radiation that drops off at zero at the peak of
the antennas axis. The radiation pattern
of the monopole antenna represents the
antenna wavefront emission. When the power is
supplied from the monopole antenna, it can work
even farther away. Radiate power from the
Military antenna changes with the elevation
angles by the dropping-off radiation to zero at
the peak of the antennas axis. Monopole antennas
radiate polarized radio waves vertically.