fan antenna - определение. Что такое fan antenna
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Что (кто) такое fan antenna - определение

DIRECTIONAL ANTENNA
Fanbeam Antenna; Fan beam
  • Side and frontal view of the beam produced
  • Circular paraboloid (red) and its truncated reflector (green).
  • AN/FPN-36 radar, with search (left) and height-finding (right)

Fan-beam antenna         
A fan-beam antenna is a directional antenna producing a main beam having a narrow beamwidth in one dimension and a wider beamwidth in the other dimension. This pattern will be achieved by a truncated paraboloid reflector or a circular paraboloid reflector.
antennule         
  • Cutaway diagram of a barnacle, with antennae highlighted by arrow
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  • Terms used to describe shapes of insect antennae
  • Olfactory receptors (scales and holes) on the antenna of the butterfly ''[[Aglais io]]'', electron micrograph
  • Electron micrograph]] of antenna surface detail of a wasp ''([[Vespula vulgaris]])''
APPENDAGES USED FOR SENSING IN ARTHROPODS
Antennule; Antennomere; Flagellomere; Antenna (Biology); Antennomeres; Antennal; Antennary; Antennation; Antenna (arthropod anatomy); Flagellomeres; Antennae (biology); Geniculate antenna; Pedicel (antenna); Antenna of insects; Antennules; Insect antenna; Antenna (anatomy); Antenna (insect); Arthropod antennae
[an't?nju:l]
¦ noun Zoology a small antenna, especially either of the first pair of antennae in a crustacean.
Antennal         
  • Cutaway diagram of a barnacle, with antennae highlighted by arrow
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  • Terms used to describe shapes of insect antennae
  • Olfactory receptors (scales and holes) on the antenna of the butterfly ''[[Aglais io]]'', electron micrograph
  • Electron micrograph]] of antenna surface detail of a wasp ''([[Vespula vulgaris]])''
APPENDAGES USED FOR SENSING IN ARTHROPODS
Antennule; Antennomere; Flagellomere; Antenna (Biology); Antennomeres; Antennal; Antennary; Antennation; Antenna (arthropod anatomy); Flagellomeres; Antennae (biology); Geniculate antenna; Pedicel (antenna); Antenna of insects; Antennules; Insect antenna; Antenna (anatomy); Antenna (insect); Arthropod antennae
·adj Belonging to the antennae.

Википедия

Fan-beam antenna

A fan-beam antenna is a directional antenna producing a main beam having a narrow beamwidth in one dimension and a wider beamwidth in the other dimension. This pattern will be achieved by a truncated paraboloid reflector or a circular paraboloid reflector. Since the reflector is narrow in the vertical plane and wide in the horizontal, it produces a beam that is wide in the vertical plane and narrow in the horizontal. (The larger the antenna dimension, the narrower the beam.)