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tags: Type/Tech,tech,seed
from: ["[[Antenna (radio)]]"]
related: []
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dateCreated: 2024-02-09, 14:04
dateModified: 2024-02-09, 14:06
version: 1.0
publish: trueGain (antenna)
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In electromagnetics, an antenna's gain is a key performance parameter which combines the antenna's directivity and radiation efficiency. The term power gain has been deprecated by IEEE. In a transmitting antenna, the gain describes how well the antenna converts input power into radio waves headed in a specified direction. In a receiving antenna, the gain describes how well the antenna converts radio waves arriving from a specified direction into electrical power. When no direction is specified, gain is understood to refer to the peak value of the gain, the gain in the direction of the antenna's main lobe. A plot of the gain as a function of direction is called the antenna pattern or radiation pattern. It is not to be confused with directivity, which does not take an antenna's radiation efficiency into account. |
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| wikipedia:: Gain (antenna) |
dBi
dB(isotropic) – the gain of an antenna compared with the gain of a theoretical isotropic antenna, which uniformly distributes energy in all directions. Linear polarization of the EM field is assumed unless noted otherwise.
- gain
- The higher the gain of an antenna, the more directional it will be - ie, make a flatter elipsis
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