Microstrip antenna raray testing

Hi,..
I have implemeted a microstrip antenna array.

Please tell me how to test its directivity, Az, El angles and other paramters. It should be in industrial grade.

Equipment available, expected gain, frequency, accuracy requirement?

Measuring gain, directivity, polarization, etc isn't a trivial task. Depending on frequency band, it can be done with relative simple means, but you need to take a lot of things into account.

For "industrial grade" testing you will need a test range, and evaluate all required parameters in a free space. You can use an anechoic chamber with special equipment to do it. There are special laboratories which can test your antenna to specifications, and give you an evaluation result to prove your antennas meets "industrial-grade".