# What does 8dbi mean?

## What does 8dbi mean?

Antenna Basics

Antenna Type Signal use
5 dBi Omni directional Receive
7dBi Omni directional Receive/transmit
8dbi Omni directional Receive/transmit
9dbi Omni directional Receive/transmit

What is Hpbw?

Half Power Beam Width or HPBW is an angular width (in degrees), measured on the major lobe of an antenna radiation pattern at half-power points i.e the points at which the signal power is half that of its peak value. Beam width is the area where most of the power is radiated, which is the peak power.

### What is azimuth pattern?

The azimuth plane pattern is formed by slicing through the 3D pattern in the horizontal plane, the x-y plane in this case, just as you would slice through a bagel. Notice that the azimuth plane pattern is non-directional, that is, the antenna radiates its energy equally in all directions in the azimuth plane.

What does gain mean on an antenna?

Antenna gain is the ability of the antenna to radiate more or less in any direction compared to a theoretical antenna. If an antenna could be made as a perfect sphere, it would radiate equally in all directions. Such an antenna is theoretically called an isotropic antenna and does not in fact exist.

#### What is dBi gain mean?

The gain of an antenna is simply the measure of an antenna’s ability to direct or concentrate radio frequency energy in a particular direction or pattern, with dBi being the unit of measure. High gain antennas (8.1 dBi) take the signal and radiate it along a straight plane in a tight, narrow pattern.

What is an antenna beam?

Antenna beamwidth determines the expected signal strength given the direction and radiation distance of an antenna. The beamwidth will vary given a number of different factors such as the antenna type, design, orientation and radio frequency.