Same Antenna Gain but element size difference

Question

Same Antenna Gain but element size difference

daniboy1969 (Computer)

(OP)

4 Jan 15 13:24

Hello,

I am interested in finding out what is the difference on a sector antenna when they have the same gain, the same degree but one its smaller the the other one? Is the bigger element better then the smaller element if we are speaking in receive sensitivity?

Example,

http://routerboard.com/RBSXTG-5HPnD-SAr2

vs

http://www.gnswireless.com/antennas_GNS1406_2.4Ghz...

Thank you all,

Daniboy

VEBill (Military) · Answer 1 · 2015-01-05 11:59:18

The first link points to an antenna (plus built-in router?) for 5 GHz.

The second link points to an antenna for 2.4 GHz.

2.4 GHz antennas would tend to be larger than 5 GHz antennas.

vertical77 (Electrical) · Answer 2 · 2015-01-14 22:24:34

Antenna's gain define type of antenna, height of installation in wave length and losses in ground under antenna. So for example 2 dipoles, which one of them for 10 Mc and length 15 meters, and other one is for 3 GHz and length 0.05 meters will have the same gain if the height of installation each antennas will be the same in wave length.

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Same Antenna Gain but element size difference