lobe

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lobe

1. any of the subdivisions of a bodily organ or part, delineated by shape or connective tissue
2. short for ear lobe
3. any of the loops that form part of the graphic representation in cylindrical coordinates of the radiation pattern of a transmitting aerial
4. any of the parts, not entirely separate from each other, into which a flattened plant part, such as a leaf, is divided

lobe

1. See antenna.

lobe

[lōb]
(biology)
A rounded projection on an organ or body part.
(design engineering)
A projection on a cam wheel or a noncircular gear wheel.
(electromagnetism)
A part of the radiation pattern of a directional antenna representing an area of stronger radio-signal transmission. Also known as radiation lobe.
(engineering acoustics)
A portion of the directivity pattern of a transducer representing an area of increased emission or response.
(hydrology)
A curved projection on the margin of a continental ice sheet.

lobe

A segment of a circle in tracery; a foil.

lobe

A curve representing the relative signal strength plotted against the position of the aerial with respect to a target. Side lobes are small lobes of energy radiated by radar aerials in diverging directions to the main beam—usually four, two at an angle of 7° from the main beam and two at angle of 90°. Side lobes may cause false weak echoes. An antenna pattern may have just one lobe, or it may have several lobes. Different lobes may have different magnitudes. The strongest lobe is called the main or major lobe. The weak lobes are called secondary or minor lobes.
References in periodicals archive ?
Strong correlation between frontal and central lobe and between central and parietal lobe was found.
3 Flowers yellowish with intense honey-brown continuous blotches or with confluent dark red-chocolate spots; perianth segments of the right side of the flower spreading at 90[degrees] to the main axis of the flower, thus parallel or subparallel to each other; central lobe of the labellum yellowish with honey-brown or dark red-chocolate tinges; plants restricted to the Candelaria and Palizada rivers, Campeche, Mexico L.
Lip three-lobed, (12)15-17 mm long, when spread (14)17-20 mm wide between the apex of the side lobes; base unguiculate, 2-3 mm long, white; lateral lobes erect, parallel, slightly falcate, oblong, 5- 7 x (2.5)3-3.5(4) mm, base little or not constricted, margins entire, pinkish; callus verrucose, extending from the base of the central lobe to the region between the lateral lobes, white; isthmus separating the lateral lobes from the central lobe usually evident, (1)2-3 mm long; central lobe, transversally broadly ovate, (6)9-11 x (9)11-13 mm, apex with a protruding fold, when flattened discreetly retuse, margins smooth, pinkish with the margins whitened, the pink becoming white with aging.
When m is a positive integer, the distribution of the orbital angular momentum density is composed of two central lobes and n pairs of side lobes, which surround the two central lobes.
ELD 036 (1.58m @ 3.70% Ni and 1.33% Cu from 320.56m) indicates continuity of mineralisation between the upper and central lobes of the sulphide zones outlined to date.

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