| Dimension name | Antenna Gain |
| Description | The forward gain of an antenna. |
| Primary unit | dBd |
| Notes |
| Unit Name | Unit Symbol | Log Base | Multiplier | Offset | Description | Notes |
|---|---|---|---|---|---|---|
| dBi | dBi | 2.15 | The forward gain of an antenna compared with the hypothetical isotropic antenna, which uniformly distributes energy in all directions. | |||
| dBd | dBd | The forward gain of an antenna compared with a half-wave dipole antenna. |