MoM method for calculating integral analytically

Hi

I want to calculate the integral ∫(x'+c)G(r,r')ds
do you know if the above integral can be calculated analytically?

Thanks

This depends on the dimensiins, if you are very far then you can neglect the variation in the amplitude. There is also a nice method called, method of stationary phase, you can found about it in blalnis book on Antennas