directional antenna

[dɪˈrekʃənəl ænˈtenə]
nounfemininepl: directional antennas / antenas direcionais
antena direcional
1. An antenna that radiates or receives electromagnetic waves more effectively in some directions than in others, concentrating energy in a specific pattern
The directional antenna improved signal reception by focusing on the transmitter location.
A antena direcional melhorou a recepção do sinal ao focar na localização do transmissor.
2. A type of antenna characterized by a radiation pattern that is not uniform in all directions, used to enhance communication efficiency
Satellite communications often use directional antennas to maintain strong connections.
As comunicações por satélite frequentemente usam antenas direcionais para manter conexões fortes.
In Brazil, directional antennas are widely used in urban telecommunications infrastructure, especially for mobile networks and satellite communications. The term is standardized across technical, academic, and professional communities in both Brazil and Portugal. In the USA, this is fundamental terminology in engineering and radio communications fields.
Synonyms / Sinônimos
beam antennahigh-gain antennafocused antennasteering antenna
Antonyms / Antônimos
omnidirectional antennaisotropic antennanon-directional antenna

Regional Variations

General Brazilian Portuguese
antena direcional
Standard term used in telecommunications and electronics industries
São Paulo
antena direcional
Commonly used in tech and broadcast sectors
Rio de Janeiro
antena direcional
Same as general usage, sometimes 'antena focada' in informal contexts
Portugal
antena direcional
Identical term; also used in European Portuguese telecommunications

Related Words

radiation patterngainbeamwidthside lobemain lobeantenna arrayYagi antennaparabolic antenna

Related Idioms & Phrases

focus the antenna
point the antenna
beam steering
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