What is the meaning of the a small 'form factor' antenna?

[shmily0447]

Hi guys,

What is the meaning of a small 'form factor' antenna? Do you have any scientific definition of the 'form factor' of an antenna? For my understanding, a 'small form factor antenna' = 'small antenna'. Is that right? Tks.

 

[SpaceDust]

Hi,

I think its any antenna with a compact size, very low profile, and probably in a shape according to the space requirements of the mounting area..!!

 

[errakeshpillai]

Form factor (radiative transfer) or emissivity, the proportion of energy transmitted by that object which can be transferred to another object.

 

[biff44]

I would class an antenna as electrically small if it (or its ground plane) was below 0.05 wavelength in size.