I try to simplify the question to Brunby and Tam.
These are my PMR446 radios.
What modifications I need to make on them to have a 2db amplification Tam defined phased array antenna ?
Two important point :
-it needs to be relatively cheap, so the cost of it can not be more than few thousand pounds/unit
-it needs to have small version, to fit the X band element of the AESA, the suggested modificatio doesn't need to be small however.
So, what I need to buy and how to install to have two independent, but perfectly phase aligned signal ?