directional antenna

electronics

Also known as: directional transmitting antenna

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Last updated

June 25, 2026

Quick Summary

A directional antenna is a crucial component in electronics, designed to transmit or receive radio waves in a specific direction. This contrasts with omnidirectional antennas, which broadcast in all directions. Directional antennas are essential for applications like radio direction finders, which pinpoint the source of a signal by rotating a directional antenna to find the point of strongest reception. They are also used in point-to-point communication and radar systems to focus energy towards a target. The design and size of a directional antenna are dependent on the wavelength of the radio waves it handles.123

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telecommunications media
Radio transmission
…a point-to-point radio channel, a directional transmitting antenna is used to focus the wave into a narrow beam, which is directed toward a single receiver site. In either case the transmitted electromagnetic wave is picked up by a remote receiving antenna and reconverted to an electric current.
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…a point-to-point radio channel, a directional transmitting antenna is used to focus the wave into a narrow beam, which is directed toward a single receiver site. In either case the transmitted electromagnetic wave is picked up by a remote receiving antenna and reconverted to an electric current.
Read More