dipole antenna
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Dipole antenna — A schematic of a half wave dipole antenna connected to an unbalanced coaxial cable. Better practice is to connect the balanced dipole to the unbalanced line with a balun. A dipole antenna is a radio antenna that can be made of a simple wire, with … Wikipedia
dipole antenna — noun an aerial half a wavelength long consisting of two rods connected to a transmission line at the center • Syn: ↑dipole • Hypernyms: ↑antenna, ↑aerial, ↑transmitting aerial * * * dipole antenna, a radio or television antenna having two… … Useful english dictionary
dipole antenna — i. An antenna system composed of two, separated, electrically equal elements. ii. Radiators, usually fed in the center, that produce a maximum of radiation in the plane normal to its axis. The length required for efficient radiation is a function … Aviation dictionary
folded dipole antenna — An antenna composed of two parallel, closely spaced dipole antennae connected at their ends, with one fed at its center. The folded dipole antenna is the same size, and has the same radiation pattern, as an ordinary dipole antenna, but the feed… … Aviation dictionary
Antenna measurement — techniques refers to the testing of antennas to ensure that the antenna meets specifications or simply to characterize it. Typical parameters of antennas are gain, radiation pattern, beamwidth, polarization, and impedance.The antenna pattern is… … Wikipedia
Antenna gain — is defined as the ratio of the radiation intensity of an antenna in a given direction, to the intensity of the same antenna as it radiates in all directions (isotropically). Since the radiation intensity of an isotropically radiated power is… … Wikipedia
dipole — [dī′pōl΄] n. 1. Physics any system having two equal but opposite electric charges or magnetic poles separated by a very small distance 2. Chem. a polar molecule in which the centers of positive and negative charge are separated 3. a radio or… … English World dictionary
Antenna (radio) — Whip antenna on car … Wikipedia
Dipole (disambiguation) — In physics, a dipole is a quantity involved some form of polarity Electric dipole Magnetic dipole Dipole moment (disambiguation) In meteorology: Arctic dipole anomaly Indian Ocean Dipole It may also refer to: Dipole antenna, a type of radio… … Wikipedia
Antenna — Contents 1 Science and engineering 1.1 Technology 1.2 Biology … Wikipedia
Dipole — This article is about the electromagnetic phenomenon. For other uses, see dipole (disambiguation). The Earth s magnetic field, approximated as a magnetic dipole. However, the N and S (north and south) poles are labeled here geographically, which… … Wikipedia
