The design of devices in radio-frequency systems in a complex task where many factors must be taken into account for foreseeing the final behaviour of the system. On the other hand, the high cost of prototyping prevents an empirical design procedure, based on iterative tests. Therefore, it is necessary the use of computer tools that allow to simulate the performance of a given design. In the case of microwaves, this leads to solve Maxwell’s equations in complex-geometry scenarios.

GEM has developed a set of electromagnetic simulation tools based on well-based numerical methods as mode-matching or finite elements. Currently we are working in the application of these techniques from the applicator (resonant cavity where the electromagnetic energy is transferred to the material)) design to the design of filters or matching devices for avoiding leakage of radiation and improve the energy efficiency.

Electric field of the first mode in a shielded microstrip line (half)