# RF Output Power vs Antenna gain

I have a RF device which work on 2.4 GHz and Output power is 30 dBm (1 W), RF output is connected to a whip antenna (gain 2 dBi, omidirection), distance track between RF pad to antenna is kept as short as possible to avoid any losses, 50 ohm independence is maintain all over this track.

So with this antenna actually my transmit power will be double or not since my antenna gain is 2 dbi?

Also the antenna transmit the radio wave, so what really it means if antenna transmit 1 W radio wave or tranmit 2 W of radio wave, how physically this wave behave in air, does both have amplitude difference, or it just like that higher the power and far it can travel?

• No, the antenna doesn't magically produce more power. You should read up on what antenna gain actually means. Commented Aug 20, 2018 at 17:43
• Related: Antenna Gain explanation, but I'm not marking as duplicate because I think the other question invites a more technical answer, while this one invites a more qualitative answer. Commented Aug 20, 2018 at 17:48
• Keep this energy away from your eyes. 1 watt in 1cm^2 is way larger than what the human eye can tolerate. Commented Aug 21, 2018 at 3:30