Frequency-Dependent Implicit Space-Mapping Algorithm for Wideband Microwave Prototyping

In this paper, a frequency-dependent implicit space mapping method is proposed for the prototyping of wideband microwave device. In the proposed method, frequency-dependent mapping is established between the fabricated device and a fast surrogate model. In this way, the practical variance of electromagnetic properties in a wide frequency range can be properly approximated. The parameter extraction process becomes more reliable, the runs of fabrication can be significantly reduced. To verify the proposed method, a wideband impedance transformer is fabricated and tested as an example. The testing results achieve design specification within only two fabrications.