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

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).

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References in periodicals archive

* At the equatorial plane of the electric dipole antenna, [theta] = [pi]/2 and

Electric dipole antenna: a source of gravitational radiation

In the commercial systems for SAR measurement a dipole antenna and a shell full of human head equivalent materials is used.

Interaction between two types of antenna and human head phantom

Table 1 summarizes the measured [S.sub.21] values of the two diamond dipole antennas for off-body and on-body environments.

Textile artificial magnetic conductor waveguide jacket for on-body transmission enhancement

Wang, "Wideband printed dipole antenna using a novel PBG structure," Microwave and Optical Technology Letters, Vol.

Application of bionics in frequency selective surface design and antenna radar cross section reduction

However, actual algorithm should increase transmission power of nodes 2 and 3 to communicate with each other when dipole antenna is used.

Topology control algorithm considering antenna radiation pattern in three-dimensional wireless sensor networks

In this paper, a new wideband magneto-electric dipole antenna is proposed.

A wideband magneto-electric dipole antenna using CPW structure

To confirm above discussions, we have considered a half wavelength dipole antenna and simulated it with regular FDTD, DGF with direct time and spatial convolutions, DGF with FFT for time domain convolution, DGF with FFT for spatial domain convolutions, and DGF with FFT for time and spatial domain convolutions.

An FFT-based approach in acceleration of discrete Green's function method for antenna analysis

The input impedance of the wide-strip dipole antenna evaluated using an arbitrarily-shaped distributed gap source model is obtained by calculating the parallel combination of [Z.sup.in.sub.11], [Z.sup.in.sub.12], and [Z.sup.in.sub.13], where

Accurate representation of excitation and loading for arbitrarily shaped antennas composed of conducting surfaces in the method of moments

They are very close to those of an ideal dipole antenna. Figure 7 shows photographs of the setup for radiation pattern measurement of the chip antenna in an anechoic chamber.

Design of a 900/1800 MHz dual-band LTCC chip antenna for mobile communications applications

Both military and commercial tests originally called out manually tuned dipole antennas. Later, shortened broadband dipoles were introduced into EMC measurements, and the specifications began requiring that both vertical and horizontal polarizations be measured.

The need for a universal EMC test standard: part 2; it's no secret that a uniform, worldwide EMC test standard is long overdue. (Dealing with EMC)

Nguyen, "Circularly polarized bandwidth-enhanced crossed dipole antenna with a simple single parasitic element," IEEE Antennas and Wireless Propagation Letters, vol.

Wideband Circularly Polarized Ellipse Antenna Array with Gain Enhancement