The radiated energy from an antenna is not of the same strength in all directions.
The energy radiated in a particular direction by an antenna is measured in terms of field strength at a point which is at a particular distance from the antenna.
Radiation pattern of an antenna is nothing but a graph which shows the variation in actual field strength, of electromagnetic field at all points which are at equal distance from the antenna.
Types of radiation pattern can be classified as
- Omnidirectional pattern
- Pencil beam pattern
- Fan Beam pattern
- Shaped beam pattern
