“…With the growing technology as 5G, internet of things (IoT) and automotive systems, there is a necessity for new measurement techniques for RF applications, including near to far-field transformation, electromagnetic (EM) data acquisition systems, EM source reconstruction, etc. Many technologies have been developed for antenna optimization and measurement based on specific requirements [4][5][6][7][8]. Thermo-elastic optical indicator microscopy (TEOIM) technique for antenna testing can provide different information related to the antenna radiation pattern, structural defects [9], and directivity; it can allow the evaluation of the radiated power and investigate how the field is distributed on the antenna surface and how it changes in the near region.…”