Correct option is D
A Yagi antenna consists of
One Driven Element: This is the active element, usually a dipole, which is connected to the feedline.
Parasitic Elements: These are passive elements, which are not directly connected to the feedline but help shape the antenna's radiation pattern:
Reflector: Placed behind the driven element to reflect energy in the desired direction.
Directors: Placed in front of the driven element to focus the energy and increase gain.
The total number of parasitic elements depends on the specific design of the antenna. Most
basic Yagi antennas have
2 parasitic elements:
·
1 Reflector
·
1 Director
Thus, the total number of parasitic elements =
2.
