What does a microwave antenna do?

The Five Types of Microwave Antennas and What They’re Used For

When microwave ovens are used according to instructions, there is no evidence that they pose a health risk to people . In the US, federal standards limit the amount of RF radiation that can leak from a microwave oven to a level far below what would harm people.

Microwave antenna is used for radiating microwave signal into space and receiving microwave signal from space . Microwave antenna acts as a transition region between free space and guiding structure like a transmission line in order to communicate between two or more locations.

A horn antenna or microwave horn is an antenna that consists of a flaring metal waveguide shaped like a horn to direct radio waves in a beam. Horns are widely used as antennas at UHF and microwave frequencies, above 300 MHz.