Telecom & Networking

Intermediate

Antenna Gain (dBi)

Directional gain of an antenna relative to an isotropic radiator, in decibels.

Formula

G_{dBi} = 10\log_{10} G

Variables

G_{dBi}Gain (dBi)

GLinear gain ratio

Example

Gain ratio 100: G = 20 dBi

Did You Know?

Satellite dishes reach 30-40 dBi by focusing energy into a very narrow beam.

telecom antenna gain

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