User:Anandrouniyar

Antenna:- Antenna, a aerial is a metallic elevated conductor (as a rod or wire) for radiating or receiving g radio waves. It is a structure between free space and a guiding device as shown in fig[1]. The guiding device or transmission line may take the form, of co-axial line or a hollow pile (wave guide) and is used to transport electromagnetic energy from the transmitting source to the antenna or from receiving antenna to the receiver.