• Basically,Multiple dipole antennas(consisting of two elements) connected to a common feed point,
• Adjust the length so that each dipole resonates at a different frequency.
• Each dipole element is optimized for each desired frequency band,
• Depending on the band used, a particular dipole will resonate and operate.
• The entire antenna is seemingly fan-shaped, hence the name.

feature

1. Multiband Operation:

   • Fan-out dipoles typically operate over three to five bands.
   • Optimized elements are provided for each band and utilize a common feeding point.

2. Simple design:

   • Simple design, no special traps or coils required,
   • By placing full-size dipoles for each band in parallel,
     It can naturally accommodate multiple bands.

3. Installation locationThe "M" in "M" is a combination of "M" and "A":

   • Each band requires a lot of space because of the placement of elements in each band.
   • If sufficient space is available, the elements can be installed while preventing interference between them.

4. tuning:

   • By adjusting the length of each element precisely, each band can be used to
     Good SWR can be obtained.

advantage

• cost effectivenessThe antenna is designed to support multiple bands with a single antenna,
  Reduces cost and installation effort.
• No traps required: To operate as a full-size dipole without traps or coils,
  It is power efficient and has a simple antenna.
• broadband coverage: Stable operation in multiple frequency bands is possible if accurate adjustments are made.

drawback

• Space requirementsThe installation site requires a lot of space,
  The longer elements, especially in the high-frequency band, can be more difficult to install.
• Interference between elementsTo place multiple elements in close proximity,
  Accurate installation and alignment are important, as electrical interference can occur between each element.

• Essentially, themultiple dipole antennas(composed of two elements) are connected to a common feed point.
• The length of each dipole is adjusted so that it resonates at different frequencies.
• Each dipole element is optimized for its specific frequency band.
• Depending on the operating band, a specific dipole element resonates and operates.
• The entire antenna appears to spread out in a fan shape, which is the origin of its name.

Features

1. Multi-band Operation:

   • The fan-out dipole typically operates on 3 to 5 or more bands.
   • Each band has an optimized element, and they all share a common feed point.

2. Simple Design: A simple design that is easy to understand and easy to use.

   • With a simple design, there is no need for special traps or coils.
   • The full-sized dipoles for each band are arranged in parallel, naturally covering multiple bands.

3. Installation Considerations:

   • Since elements for each band are arranged, it requires a large amount of space.
   • With enough space, the antenna can be installed without interference between the elements.

4. Tuning: Tuning

   • By precisely adjusting the length of each element, a good SWR can be achieved for each band.

Advantages

• Cost Efficiency

  • Since one antenna can cover multiple bands, it reduces the cost and installation effort.

• No Traps Needed:.

  • Operates as a full-sized dipole without the need for traps or coils, providing better power efficiency and a simpler antenna.

• Wideband Coverage: 1.0 to 2.0

  • With proper tuning, it allows stable operation across multiple frequency bands.

Disadvantages

• Space Requirements: 1.

  • Requires a lot of space for installation, especially when elements for higher frequency bands become longer, which can make installation difficult.

• Element Interference

  • Since multiple elements are placed close to each other, there is potential for electrical interference between them. Since multiple elements are placed close to each other, there is potential for electrical interference between them.

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