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antenna Definition

an·tenna (an ten′ə)

noun

  1. pl. -·nae-ē or -·nas either of a pair of movable, jointed sense organs on the head of most arthropods, as insects, crabs, or lobsters; feeler
  2. pl. -·nasRadio, TV an arrangement of wires, metal rods, etc. used in sending and receiving electromagnetic waves; aerial

Etymology: L, earlier antemna, sail yard

antenna Synonyms

antenna

n.

aerial, wire, receiving wire, radiating wire, rabbit ears*.

antenna Telecom Definition
A device comprising an arrangement of wires, metal rods, and so on for radiating and receiving radio signals.A transmitting antenna converts electrical current to electromagnetic radio waves projected into free space or a waveguide.A receiving antenna converts electromagnetic radio waves into electric current.An antenna commonly performs both transmit and receive functions.The transmitters and receivers used in free space optics (FSO) also can be characterized as antennas. See also free space, FSO, and waveguide.
antenna Usage Examples

Converse of object

  • polarize: It is only really defined for linearly polarized antennas.
  • mount: The accessories include a mag mount type whip antenna with several meters of coaxial cable.
  • transmit: Range is limited by: a ) How far the transmitting antenna can effectively see.

Adjective modifier

  • directional: A few of the smaller sites just have two directional antennas at the top of a pole or on a shared tower.
  • parabolic: In 1937 another radio engineer, Grote Reber, began work with a parabolic reflector antenna 9.7 m in diameter.
  • omnidirectional: Obviously with with Ridge Hill being west, and Sutton Coldfield being north, what I needed was an omnidirectional antenna.
  • omni-directional: The smallest stand-alone O2 site appears to be a pole with a single omni-directional antenna on the top, similar to the Vodafone design.
  • telescopic: Most come with a telescopic antennae which offers fair reception.
  • detachable: The detachable antenna is easy to lose and it would be better with a solid one.

Modifies a noun

  • tuner: In the center we see the final remains of the base framework of the old antenna tuner being cut away.
  • connector: The wireless card also lacks an external antenna connector.
  • coupler: You will also need to purchase the phone holder separately, and optionally for the holder, an antenna coupler.
  • radiation: Thus the antenna radiation ( normal to the plane of the loop ) will be polarized parallel to the short sides of the loop.
  • array: The diagram below shows the radiation pattern of the sixteen element antenna array.

Noun used with modifier

  • dipole: This is achieved using a specially designed splitter box to feed each dipole antenna with the correct RF signal phase.
  • high-gain: A high-gain antenna can boost wireless coverage on a single floor.
  • ferrite: All antennas built-in: telescopic antenna for FM and SW; internal ferrite bar antenna for AM.
  • reflector: But they had to have bulky reflector antennas fitted on top of the vehicle.
  • re-radiating: If this is the case you may need to purchase an additional re-radiating antenna, price £ 69.95 inc vat for optimum performance.
  • radar: The Flag Officer's Pennant is just visible below the radar antenna.