dipole antenna


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dipole antenna

[′dī‚pōl an′ten·ə]
(electromagnetism)
An antenna approximately one-half wavelength long, split at its electrical center for connection to a transmission line whose radiation pattern has a maximum at right angles to the antenna. Also known as doublet antenna; half-wave dipole.

dipole antenna

dipole antenna
dipole antennaclick for a larger image
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 of the frequency of the radiated wave.

dipole antenna

Meaning "two poles," a dipole antenna is the simplest type of antenna, consisting of an electrically conducting wire or rod one half the length of the maximum desired wavelength. The wire or rod is split at the center with an insulator. Each end at the center is connected to the feed line, typically via a balun to a coaxial cable (see balun).
References in periodicals archive ?
This paper investigates the design of a non-uniformly excited half wavelength symmetric linear dipole antenna array with and without mutual coupling effect using NPSO.
The human head equavalent material properties and dipole antenna lengh are in table 1 and table 2.
In design process, the single band is performed when the dipole antenna is radiated.
Figure 5(a) shows the fabricated textile AMC waveguide sheet with two diamond dipole antennas.
Wang, "Wideband printed dipole antenna using a novel PBG structure," Microwave and Optical Technology Letters, Vol.
Recall that an electric dipole antenna is a pair of conducting bodies (usually spheres or rectangular plates) of finite capacitance connected by a thin wire of negligible capacitance through an oscillator.
Wong, "Broadband planar dipole antenna for DTV/GSM operation," Microwave and Optical Technology Letters, Vol.
DN, "Horizontal dipole antenna above an imperfectly conducting ground fed by a two-wire line", Extrait du Bulletin T.
For a biconical or dipole antenna, the largest dimension of the structure is well defined.
The company said that its Agilis A10346 is a small switchable Magnetic Dipole Antenna (MDA) offering dual mode GSM/LTE capabilities and also Wi-FI, Bluetooth and WiMAX in a single structure.
In this presentation are shown the simulation results regarding the directivity characteristics of an conductor passed by a electric current and of an symmetric dipole antenna for different reports l = the conductor's length (antenna)/wave length of the current that passes through the conductor (antenna).
Astron Wireless Technologies is replacing the standard whip antenna on wireless telephone terminals (wireless local loop) or data devices with a 3-dBi omni-directional dipole antenna.