Antenna Diversity

[Williamtan]

I saw an article in your forum FAQ, talking about antenna diversity. The article mention that this function came with 2 antennas of wireless devices. How about wireless device only has 1 antenna?

 

[eibgrad]

To speak of antenna diversity w/ one antenna is an oxymoron. What creates the diversity (choice) is having more than one choice (antenna).

With two or more antennas, it's hoped (if not always realized) that one antenna may be better positioned for wireless reception, and thus the better choice for communications. Antenna diversity uses various algorithms to assess the quality of the wireless signal and choose the best one at any given time.

That said, how much this really helps given the proximity of one antenna to another on a typical consumer grade, wireless router, is debatable. I suspect not much, which is why you probably see lots of single antenna solutions for wireless G, it's just not worth the expense.

 

[Williamtan]

Why the notebook computer is using build-in antenna and it come with atenna diversity function?

 

[eibgrad]

Why the notebook computer is using build-in antenna and it come with atenna diversity function?

All you said was it's built-in, but that doesn't tell us one way or the other if it's single or dual antenna. The implication is that it's a dual antenna, internally.

 

[Williamtan]

Best answer selected by Williamtan.