dielectric lens


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dielectric lens

[‚dī·ə′lek·trik ′lenz]
(electromagnetism)
A lens made of dielectric material so that it refracts radio waves in the same manner that an optical lens refracts light waves; used with microwave antennas.
References in periodicals archive ?
The aim of this work is to present, in detail, a semianalytical model to design a new class of shaped dielectric lens antennas whose geometry is described by Gielis' super-formula [14, 15].
The geometrical structure considered in the proposed electromagnetic model consists of a dielectric lens antenna placed on a perfectly electric conductor (PEC) circular plate having radius [r.
Artificial dielectric lens antennas: Assessment of their potential for space applications," 23rd European Microwave Conference, 896-898, Madrid, Spain, 1993.
Holub, "Broadband TEM horn antenna with dielectric lens for UWB measurement," 3rd European Conference on Antennas and Propagation, 2009, EuCAP 2009, 3348-3351, 2009.
Le Coq, "Flat-shaped dielectric lens antenna for 60-GHz applications," IEEE Trans.
In [9], authors use a sectoral horn with a dielectric lens in its aperture but to adjust the beam properties in the far-field region.
DRGH design is divided into 4 parts: characteristic impedance calculation of ridged waveguides by transverse resonant method combined with the calculation method in [14-16], the design of the reflection cavitydesign of the ridged structure extending form the waveguide port to the horn apertureand structure optimization which includes analysis of phase error distribution at the antenna aperture, design of dielectric lens according to the structure, analysis of ridged waveguide and design of slot loading on ridges for lowering the cutoff frequency of the dominant mode ([TE.
Kuwahara, "Design of multi-beam dielectric lens antennas by multiobjective optimization," IEEE Trans.
The dielectric lens and dielectric rod of the feed antenna are fabricated with polyethylene (PE) which is the characteristics of relatively low dielectric constant, low density and high strength.
This transmitted wave into dielectric lens propagate towards the curved surface of lens at z = [zeta].
The dielectric lens forms a hermetic seal, and it can be produced as part of the housing.
Unlike a dielectric lens, it consists of an input array connected to an output array by transmission lines.