The Method of Diode Modeling and Novel Equivalent Circuit for Microwave Rectifiers

For the design of rectifiers, the accurate modeling method for diode is necessity. By the measurement, scattering parameters, which expresses the microwave input characteristics, can be obtained. In previous research, the modeling method using scattering parameters are discussed. Herein, we focused on the modeling method for the design of single-shunt rectifiers. In this case, only $S_{11}$ is necessity for the design. Then, applied the former method to this condition. First, the traditional equivalent circuit is assumed in the parameter extracting process. However, the extracted result does not agreed with the fundamental physical rules. Herein, we developed the new equivalent circuit, which is suitable for our assuming situations. As a result, the extracted results using our proposed circuit show the much better than that with using the traditional circuit.