beam antenna: meaning, definition, pronunciation and examples
C2Technical (Radiocommunication, Engineering), Jargon
Quick answer
What does “beam antenna” mean?
A directional radio antenna that concentrates transmitted or received power in a specific, narrow beam.
Audio
Pronunciation
Definition
Meaning and Definition
A directional radio antenna that concentrates transmitted or received power in a specific, narrow beam.
In a broader technical context, any antenna system designed to project a focused signal pattern, often involving an array of elements (like a Yagi-Uda). Can be extended metaphorically to describe any highly focused or targeted means of transmission or reception.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or grammatical differences. Both use the same term.
Connotations
Identical technical connotations.
Frequency
Equally infrequent in general discourse but standard in both UK and US amateur radio and professional RF engineering contexts.
Grammar
How to Use “beam antenna” in a Sentence
[Verb] + beam antenna: install/erect/rotate/point/align a/the beam antenna[Adjective] + beam antenna: directional/rotatable/HF/VHF beam antennabeam antenna + [for]: a beam antenna for satellite communicationVocabulary
Collocations
Examples
Examples of “beam antenna” in a Sentence
verb
British English
- We need to beam the signal towards the continent.
- The satellite beams data to the ground station.
American English
- We need to beam the signal toward the continent.
- The satellite beams data to the ground station.
adverb
British English
- The signal was transmitted beam-style towards the receiver.
American English
- The signal was transmitted beam-style toward the receiver.
adjective
British English
- The beam-antenna system requires careful alignment.
- He specialises in beam-antenna design.
American English
- The beam antenna system requires careful alignment.
- He specializes in beam antenna design.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used in electrical engineering, telecommunications, and physics papers discussing radio wave propagation.
Everyday
Extremely rare; only used by amateur radio enthusiasts.
Technical
Standard term in radio frequency (RF) engineering, amateur radio, and satellite communication for describing a primary directional antenna system.
Vocabulary
Synonyms of “beam antenna”
Strong
Neutral
Weak
Vocabulary
Antonyms of “beam antenna”
Watch out
Common Mistakes When Using “beam antenna”
- Using 'beam antenna' to refer to any antenna mounted on a beam (structural element).
- Pronouncing 'antenna' with stress on the first syllable in British English (should be on the second: /ænˈtɛnə/).
FAQ
Frequently Asked Questions
Not exactly. A satellite dish is one specific type of beam antenna (a parabolic reflector). 'Beam antenna' is a broader category that includes Yagis, log-periodics, and dishes—all designed to be directional.
It is technically possible but highly impractical. Beam antennas are for targeted point-to-point communication. FM broadcast reception typically uses omnidirectional antennas to receive signals from multiple transmitters.
To change the direction it is pointing. Since it only transmits and receives well in one specific direction, it must be aimed at the other station. A rotator motor allows this to be done remotely.
Gain is a measure of how much the antenna focuses power compared to a standard reference antenna (like a dipole). Higher gain means a narrower, more focused beam and stronger signal in that direction, at the expense of coverage in other directions.
A directional radio antenna that concentrates transmitted or received power in a specific, narrow beam.
Beam antenna is usually technical (radiocommunication, engineering), jargon in register.
Beam antenna: in British English it is pronounced /biːm ænˈtɛnə/, and in American English it is pronounced /bim ænˈtɛnə/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[Technical idiom] 'On the beam' - correctly tuned or aligned, derived from radio navigation beams, not directly from 'beam antenna'.”
Learning
Memory Aids
Mnemonic
Think of a lighthouse BEAM focusing light in one direction; a BEAM ANTENNA focuses radio waves in one direction.
Conceptual Metaphor
COMMUNICATION IS TRANSMISSION; TARGETED COMMUNICATION IS A FOCUSED BEAM.
Practice
Quiz
What is the primary purpose of a beam antenna?