We have a wireless link of 11 kms and we planned to implement with Metal52hn+30 dbi solid dish in AP side and Groov52hn+5ghz 13 dbi omni antenna in client side as omni is the only option there. my doubt is do 5ghz omni can be connected at a distance of 11 kms and expected throughput is 5 mbps..No interference And clear line of sight.

We have a wireless link of 11 kms and we planned to implement with Metal52hn+30 dbi solid dish in AP side and Groov52hn+5ghz 13 dbi omni antenna in client side as omni is the only option there. my doubt is do 5ghz omni can be connected at a distance of 11 kms and expected throughput is 5 mbps..No interference And clear line of sight.

Depends on your regulations

Why not calculating it?
http://www.mikrotik.com/test_link.php

Mikrotik link calculator 100% successful?

Mikrotik link calculator 100% successful?

It is a physical calculation. If you put the right data in it gives you the right data out.
So if your fresnels are clear, your Antennas deliver as promised, if there is no interference
and you mount correctly you will see the calculated values.

Of course you get attenuation with rain. Of course you get interference on your omni
quite fast ...

It also depends on the height between ap and client.
It is best if they are at the same height.
Otherwise it could be that the radio waves above 30 dbi solid dish rays.

example not good

60 meter height stand the omni's
10 meter height the 30 dB dish.

It also depends on the height between ap and client.
It is best if they are at the same height.
Otherwise it could be that the radio waves above 30 dbi solid dish rays.

example not good

60 meter height stand the omni's
10 meter height the 30 dB dish.

At 11km distance this will be a very small angle ...