Design of Electromagnetic Signal Generator Based on Field Programmable Gate Array

Using the direct digital frequency synthesis (DDS) technology, an electromagnetic (EM) signal generator was designed with the field programmable gate array (FPGA) chip as the carrier. The EM signal generator is capable of generating sinusoidal signals with adjustable frequency and amplitude. The system circuit has the advantage of being low-cost, simple and reliable. The function simulation results and the oscilloscope test results show that the signal generator has strong flexibility and stability and meets the design requirements.