1. A modeling circuit of a high-frequency device that comprises an overlap zone where the two electrodes are overlapped with each other, a non-overlap zone where the overlap zone is absent between the two electrodes, the overlap and non-overlap zones being formed by stacking two or more electrodes on top of each other in a constant distance, and terminations electrically coupled with some parts of the two electrodes, comprising: a first circuit block comprising a first capacitor and a first conductor that model the overlap zone of the high-frequency device on the basis of coupled transmission line theory; and a second circuit block comprising a first inductor and a first register that model the overlap zone of the high-frequency device on the basis of coupled transmission line theory and model the non-overlap zone and the terminations of the high-frequency device on the basis of a Series RL model, wherein the first and second circuit blocks are combined to form a primary self resonance of the high-frequency device.