A typical radiation pattern of phased arrays whose inter-element spacing is greater than half a wavelength, hence the radiation pattern has grating lobes.
For discrete aperture antennas (such as phased arrays) in which the element spacing is greater than a half wavelength, a spatial aliasing effect allows plane waves incident to the array from visible angles other than the desired direction to be coherently added, causing grating lobes. Grating lobes are undesirable and identical to the main lobe. The perceived difference seen in the grating lobes is because of the radiation pattern of non-isotropic antenna elements, which effects main and grating lobes differently. For isotropic antenna elements, the main and grating lobes are identical.
added, causing gratinglobes. Gratinglobes are undesirable and identical to the main lobe. The perceived difference seen in the gratinglobes is because...
first gratinglobe, or between gratinglobes. It is conceptually useful to distinguish between sidelobes and gratinglobes because gratinglobes have larger...
the mainlobe, called sidelobes and mainlobe replicas called grating-lobes. Gratinglobes are a source of disadvantages in both transmission and reception...
A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths...
segment of an antenna radiation pattern Gratinglobe, a sidelobe that is much higher than all other side lobes, approximately the same as the main beam...
nulls, main lobe, and gratinglobes of the array. Referring to the exponents in the array factor equation, we can say that major and gratinglobes will occur...
side-lobes become negligible and the beam profile becomes purely Gaussian. [page needed] In medical ultrasonography, the effect of gratinglobes can be...
of the ULA category. The reason for this spacing is that it prevents gratinglobes in the visible region of the array. Intuitively one can think of a ULA...
manner. The spacing between the line sources is chosen such that no gratinglobes occur, and accurate analyses show that no blind spots appear anywhere...
40cm, 38.75cm respectively. This unequal spacing is designed to reduce gratinglobes of the array Dish Array: This includes 16 dishes of 6 meter aperture...
human visual perception in which colorless gratings appear colored contingent on the orientation of the gratings. It is an aftereffect requiring a period...
may be used as imaging lenses with a single focus as long as the type of grating used is sinusoidal in nature. A zone plate used as a reflector will allow...
be split into n = l + 1 lobes, roughly around the depth of focus of a tilted convex lens. Furthermore, the orientation of lobes (right and left diagonal)...
from the wind, could easily sap a victim's body heat. The holes in the grating were also big enough to allow carrion birds, and the occasional rat, to...
measure passive tactile spatial acuity, perhaps the most rigorous being the grating orientation task. In this task subjects identify the orientation of a grooved...
transmitted or by the use of mirrors, prisms, lenses, or rotating diffraction gratings. Examples of optical beam steering approaches include mechanical mirror-based...
Czerny–Turner design, with an optical detector placed at the output slit. As the grating in the monochromator moves, bands of different frequencies (colors) are...
coloration with mechanisms that include photonic crystals and diffraction gratings. Scales function in insulation, thermoregulation, producing pheromones...
a small image, e.g., a horizontal grating, is presented to the left eye, and another image, e.g., a vertical grating, is shown to the corresponding location...
player in retinal resolution. In the ideal eye, the image of a diffraction grating can subtend 0.5 micrometre on the retina. This is certainly not the case...
should appear closest. To enhance this effect, subjects put on blazed grating High Definition ChromaDepth® C3D™ 3D-lenses glasses, which contain a prism...
Kanics, IM (2006). "Performance of blind and sighted humans on a tactile grating detection task". Perception & Psychophysics. 68 (8): 1363–71. doi:10.3758/bf03193735...
in the brain to be investigated. By frequency-tagging two superimposed gratings, spatial frequency and orientation tuning properties of the brain mechanisms...
of both linear and ultrafast optical properties. A graphene-based Bragg grating (one-dimensional photonic crystal) has been fabricated, demostrating its...
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