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Summarium

Descriptio
Català: Patró de radiació azimutal d'una antena direccional típica, que mostra el lòbul principal, lòbul posterior i lòbuls laterals. La distància des de l'origen mostra la intensitat del senyal (densitat de potència) en funció de l'angle. A causa de la interferència entre les ones de ràdio emeses per diferents parts de l'antena, un patró de radiació d'antena típic té lòbuls, direccions en què la intensitat de la radiació és un màxim local, separats per nulls, direccions en què la radiació és un mínim local o zero. En una antena direccional, el lòbul més gran, que mostra la direcció de la major part de la radiació, s'anomena lòbul principal, que representa la direcció desitjada de la radiació. La resta de la potència s'irradia en lòbuls laterals, normalment representant radiació no desitjada en altres direccions. Moltes antenes emeten un gran senyal en una direcció oposada al lòbul principal; això s'anomena lòbul posterior.
English: Azimuthal radiation pattern of a typical directional antenna, showing main lobe, back lobe and side lobes. The distance from the origin shows the signal strength (power density) as a function of angle. Due to interference between radio waves emitted by different parts of the antenna, a typical antenna radiation pattern has lobes, directions in which the radiation strength is a local maximum, separated by nulls, directions in which radiation is a local minimum or zero. In a directional antenna the largest lobe, showing the direction of most of the radiation, is called the main lobe, which represents the desired direction of the radiation. The rest of the power is radiated in sidelobes, usually representing unwanted radiation in other directions. Many antennas emit a large signal in a direction opposite the main lobe; this is called the backlobe.
Русский: Диаграмма направленности с боковыми лепестками.
Datum (UTC)
Fons Opus proprium
Auctor Timothy Truckle
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Radiation pattern of typical antenna showing main lobe, back lobe and side lobes

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depicts Anglica

copyrighted Anglica

20 Iunii 2008

Historia fasciculi

Presso die vel tempore fasciculum videbis, sicut tunc temporis apparuit.

Dies/TempusMinutioDimensionesUsorSententia
recentissima17:03, 21 Ianuarii 2024Minutum speculum redactionis 17:03, 21 Ianuarii 2024 factae360 × 360 (6 chiliocteti)ManlleusFile uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for ca.
16:40, 7 Decembris 2012Minutum speculum redactionis 16:40, 7 Decembris 2012 factae360 × 360 (5 chiliocteti)GlrxOpposite side lobe changed to back lobe. English version of title. Grammar correction in description.
07:28, 20 Iunii 2008Minutum speculum redactionis 07:28, 20 Iunii 2008 factae360 × 360 (5 chiliocteti)Timothy Trucklespelling correted
07:27, 20 Iunii 2008Minutum speculum redactionis 07:27, 20 Iunii 2008 factae360 × 360 (5 chiliocteti)Timothy TruckleUse of unicode character ° (°)
20:19, 19 Iunii 2008Minutum speculum redactionis 20:19, 19 Iunii 2008 factae360 × 360 (5 chiliocteti)Timothy TruckleDiagramm of antenna side lobes This diagram illustrates how he energy of electro magnetic waves is emitted on an antenna. This diagrams show the line where the energy is less than 3db compared to an iso emitter.
20:15, 19 Iunii 2008Minutum speculum redactionis 20:15, 19 Iunii 2008 factae360 × 360 (5 chiliocteti)Timothy TruckleDiagramm of antenna side lobes This diagram illustrates how he energy of electro magnetic waves is emitted on an antenna. This diagrams show the line where the energy is less than 3db compared to an iso emitter.

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