Generators, signal analyzers, power meters, scalar and vector network analyzers, etc. All these instruments intended for testing and measuring signals in the radiofrequency and microwave fields were formerly reserved for niche applications in the field of Defense, Aerospace, radar and radio communications. With the proliferation of applications using wireless transmissions, mobile telephony, car radars, IoT, and Wi-Fi technologies, these instruments are now used by a growing number of technicians and engineers .