How to install high gain 22dbi antenna on routers

[vishcool]

Hello Friends,
I just bought 22DBi high gain antenna's.
I attached it to my Tenda N150 wifi router which has a detachable antenna,
But signal did not improve, i tested it on internal Dlink wifi card there it improved the signal strength.
then i tested it on different routers but no improvement,
Can anybody help in getting this high gain 22dbi antenna to work on routers.

 

[axeman]

Pics and antenna as well as router details please.

 

[vishcool]

Router is Tenda W311R+ link:
http://tenda.cn/tendacn/Product/show.aspx?productid=354

Following is antenna pic

 

[Crazy_Eddy]

Any product page for the antenna? 22dbi is hugely exaggerated. Its probably 6~9dbi. Plus without a polar plot of the gain you have no idea how it will perform. What are you using to measure signal strength?

 

[cranky]

Not as crazy as you think Eddy. I have a 15dBi antenna that does 15dBi no problem, so for a Chinese product it's much closer to spec than one might believe. I guess this should at least do 15 and that is enough to push a signal from unusable to faint, as long as the device amplifiers are able to cope with the antenna.

22dBi is quoted by Chinese spec wrt no signal - so if you are getting -75dBi with zero antenna, you will get -53dBi with this one, which is exactly how my "15dBi: antenna works. The problem is most routers and adapters do not have the needed transmit power for such high gain antennae, or the routers have fixed power output.

The reason that TS is getting no improvement with these antennae is that 99% of routers have output power limited by FCC regulation to conform to the good neighbor spec, and then tuned to perform best with specific antennae and radiation pattern. Just slapping on aftermarket antennae will get you nowhere as far as routers are concerned.

 

[vishcool]

I am Using Tenda W311R+ N150 router,also i tested this antenna on TPLINK, dlink, but no gain on any of these routers.

These are antenna specs:
Standard:IEEE802.11b,IEEE802.11g,IEEE802.11n
Main Technical Specifications
1.Frequency:2400--2500MHz 2.VSWR:<=2.0
3.Gain:22dBi
4.Polarization Type:Vertical
5.Rated Power:50W
6.Input Impedance:50 Ohms nominal
7.Dimensions:44.1cm*1.5cm
8.Connector Type:RP-SMA
9.Install the Way:Adsorption
10.Weight of Antenna:66g


@cranky no i got this antenna, how do i get it to work?, how to increase power to support this antenna?

 

[cranky]

how to increase power to support this antenna?

Do you have a degree in RF engineering and a bunch of measuring equipment for 2.4GHz signals?

If you do, the question is probably redundant.

If not, forget it. Sell the antennas and put it down as education cost. Those only work, and not too well, with adapters that come without antenna or older APs that didn't have Good Neighbor policy.

 

[Crazy_Eddy]

What are you using to measure signal strength? I hope you're not one of those people getting a ~75Mbps link speed and wondering why you're not getting 150Mbps on a 20MHz channel width