File:Sidelobes en.svg
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Captions
Captions
Radiation pattern of typical antenna showing main lobe, back lobe and side lobes
Summary
[edit]| Description |
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. |
| Date | (UTC) |
| Source | Own work |
| Author | Timothy Truckle |
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File:Sidelobes en.svg has 2 translations.
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Licensing
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I, the copyright holder of this work, hereby publish it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:03, 21 January 2024 | | 360 × 360 (6 KB) | Manlleus (talk | contribs) | File uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for ca. |
| 16:40, 7 December 2012 |  | 360 × 360 (5 KB) | Glrx (talk | contribs) | Opposite side lobe changed to back lobe. English version of title. Grammar correction in description. | |
| 07:28, 20 June 2008 |  | 360 × 360 (5 KB) | Timothy Truckle (talk | contribs) | spelling correted | |
| 07:27, 20 June 2008 |  | 360 × 360 (5 KB) | Timothy Truckle (talk | contribs) | Use of unicode character ° (°) | |
| 20:19, 19 June 2008 |  | 360 × 360 (5 KB) | Timothy Truckle (talk | contribs) | Diagramm 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 June 2008 |  | 360 × 360 (5 KB) | Timothy Truckle (talk | contribs) | Diagramm 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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