Directional antenna

A multi-element, log-periodic dipole arrayA 70-meter Cassegrain radio antenna at GDSCC, California

A directional antenna or beam antenna is an antenna which radiates or receives greater power in specific directions allowing for increased performance and reduced interference from unwanted sources. Directional antennas provide increased performance over dipole antennas – or omnidirectional antennas in general – when a greater concentration of radiation in a certain direction is desired.

单词	Beam antenna
释义	Beam antenna 英语百科 Directional antenna A directional antenna or beam antenna is an antenna which radiates or receives greater power in specific directions allowing for increased performance and reduced interference from unwanted sources. Directional antennas provide increased performance over dipole antennas – or omnidirectional antennas in general – when a greater concentration of radiation in a certain direction is desired.
随便看	apo chenodeoxycholic acid的意思 apo chenodexycholic acid的意思 apochete的意思 Apochka的意思 Apocholic acid的意思 apochrimatic correction的意思 apochromat的意思 apochromatic的意思 Apochromatic lens的意思 apochromatic micro objective的意思 apochromatic object glass的意思 apochromatic objective的意思 apochromatic system的意思 apochromatism的意思 Apochromat lens的意思 apochromat的意思 apochylism的意思 apocianine的意思 Apocillin的意思 a pocket watch的意思 Apoclada的意思 apocleisis的意思 apocodeine的意思 apocodeine hydrochloride的意思 apocolpia的意思

Beam antenna

Directional antenna