Research of directional microwave couplers under conditions of extreme changes in load parameters caused by active element failures and circuit breaks

The results of the study of directional microwave couplers under conditions of extreme changes in load parameters are presented. Models are proposed in the form of equivalent circuits, mathematical relationships are obtained connecting the parameters of models and directional couplers, the results of comparison of model parameters and directional couplers in the microwave CAD system are shown, and experimental results are attached.