What are the three elements of Yagi-Uda antenna?

There are three types of element within a Yagi antenna:
  • Driven element: The driven element is the Yagi antenna element to which power is applied. …
  • Reflector: The reflector element is made to be about 5% longer than the driven element. …
  • Director: The director or directors are made to be shorter than the driven element.

What are the advantages of Yagi-Uda antenna?

Benefits or advantages of YAGI Antenna | YAGI UDA Antenna

It offers wide bandwidth due to use of folded dipole. ➨It offers unidirectional radiation pattern which is reasonably good. ➨It offers substantial increase in directivity and gain compare to simple dipole antenna. ➨It is lower in cost and simple to build.

What is the principle of Yagi-Uda antenna?

Yagi antennas use mutual coupling between standing-wave current elements to produce a traveling-wave unidirectional pattern. It consists of an array of a dipole and additional closely coupled parasitic elements. The elements in the Yagi antenna are usually welded to a conducting rod or tube at their centers.

What are the parasitic elements of a Yagi antenna?

A Yagi antenna with one driven element (A) called a folded dipole, and 5 parasitic elements: one reflector (B) and 4 directors (C). The antenna radiates radio waves in a beam toward the right.

What is the radiation pattern of Yagi-Uda antenna?

Explanation: Radiation pattern of a Yagi-Uda antenna is end-fire. It has its main beam parallel to the axis of antenna (boom). The addition of directors will increase the gain of antenna while reflectors will increase the directivity of antenna.

What is Yagi-Uda antenna and mention its application?

The feeder is the folded dipole. The reflector is the lengthy element, which is at the end of the structure. The figure depicts a clear form of the Yagi-Uda antenna. The center rod like structure on which the elements are mounted is called as boom.

Dipole to Director spacing0.125λ

What is a Yagi antenna used for?

A Yagi antenna is used for communications in a medium range of three to five miles between two points. It can also be used as a bridge antenna to connect clients to an access point. This term is also known as a Yagi-Uda array or patch antenna.