A high gain omnidirectional antenna?

[mick stuckings]

It's a 2-D omni as I understand it, not really omni in the 3-D sense, 
but has a beam evenly spread horizontally and does not waste energy by 
spreading up and down. That's where the gain comes in.
Mick

jdalton at bigfoot.com.au wrote:

> It refers to "a high gain 2.4GHz omnidirectional antenna".
> Isn't this an oxymoron?  How can an omnidirectional
> antenna have high gain??  I presume what is really
> meant is a "low loss omnidirectional antenna"?
>