Contents
What is dB for antenna?
dB is antenna gain in decibels reference to how much times gainincrease there is with respect to 1(0dB) . dBi is antenna gain with respect to isotropic antenna. Since isotropic antenna has gain 1 ( 0 dB) thats why here dB and dBi are same. Gain of 3 dB means 2 times increase in gain.
How do you describe the antenna radiation pattern?
In the field of antenna design the term radiation pattern (or antenna pattern or far-field pattern) refers to the directional (angular) dependence of the strength of the radio waves from the antenna or other source.
What is the significance of representing radiation pattern in dB scale?
The energy radiated by an antenna is represented by the Radiation pattern of the antenna. Radiation Patterns are diagrammatical representations of the distribution of radiated energy into space, as a function of direction.
How does antenna radiation occur?
In transmission, a radio transmitter supplies an electric current to the antenna’s terminals, and the antenna radiates the energy from the current as electromagnetic waves (radio waves).
How is the energy radiated by an antenna represented?
The energy radiated by an antenna is represented by the Radiation pattern of the antenna. Radiation Patterns are diagrammatical representations of the distribution of radiated energy into space, as a function of direction. Let us look at the pattern of energy radiation.
Which is part of the antenna indicates directivity?
The direction of this lobe indicates the directivity of the antenna. The other parts of the pattern where the radiation is distributed side wards are known as side lobes or minor lobes.
How to create an antenna radiation pattern with Ubiquiti?
With Ubiquiti’s provided azimuth plots, envision the pattern as if you were standing directly under a ceiling-mounted access point and looking up with the plot going out in all directions horizontally from the access point.
Where can I find the antenna radiation patterns?
This article will not share each AP model’s distinct radiation pattern (the radiation patterns for each UniFi AP model can be found in our UniFi – UAP Antenna Radiation Patterns) but rather will explain how to read and understand the provided antenna radiation patterns. What is Antenna Gain?