The Indo-Israel Phalcon Radar System Deal: Pakistan's Likely Response

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See there is a trade off here. If you make the individual T/R module large then there will be a limitation on the total number of T/R modules you can carry in an array of given length. Now, it is left to the user to decide what is the optimum balance he needs between the size of the T/R module and the total number. Having a large number of T/R modules is very important to improve resolution of target, improving stealth, reducing the steering time etc. At the same time large modules provide more power.
One of the possible solutions is to get more power out of smaller T/R modules. This is possible by using advanced material tech. So, eventually it comes down to the quality of the solid state materials used in the Swedish and Israeli T/R modules.

For the sake of argument we have to assume that both systems have the same antenna span and height and operate with the same antenna elements and function at the same average watts per module.
If the above is assumed then the triangular configuration has an advantage due to the following:
- Lighter more aerodynamic radome design
- No cosine loss when the beam is directed broadside of any one of the three arrays
- Larger scanning range
- Not limited to 90 degree scan segments