parasitic element

parasitic element

[¦par·ə¦sid·ik ′el·ə·mənt]
(electromagnetism)
An antenna element that serves as part of a directional antenna array but has no direct connection to the receiver or transmitter and reflects or reradiates the energy that reaches it, in a phase relationship such as to give the desired radiation pattern. Also known as parasitic antenna; parasitic reflector; passive element.
References in periodicals archive ?
When the length of the parasitic element is shorter than that of the active element, a pulling pattern is obtained.
A move to the double-trench architecture, which places the gate and source in their own trenches, eliminates the parasitic element.
Additionally, there is a parasitic element that is used to increase the bandwidth at higher frequencies [18, 19].
Each parasitic element has a switch connected to the ground plane at the back of the antenna.
The parasitic element can either be placed in the plane of the patch antenna on the same substrate or placed above it in a stacked arrangement.
Q3D Extractor uses the Method of Moments (MoM) (8) and Finite Element Method (FEM) to solve Maxwell equations and compute parasitic element matrices.
In conventional CRLH unit cell the parallel capacitor (and also series inductor) acts as a parasitic element.
Rogue salesmen and workers are a parasitic element of society.
The results from the model of cytoplasmic parasitic element differ from those of the nuclear gene in two respects.
Parasitic element is a good candidate to improve operating bandwidth [12, 13].
As another shape of parasitic element, parasitic split-ring resonators have been used in loop antennas [19] and dipole antennas [20], achieving a wide bandwidth without changing the antenna size.