Designing superconducting microwave planar components cannot be well performed without utilizing a full-wave simulator. However, well-known conventional simulators, i.e., Ansoft HFSS or CST microwave studio, cannot predict the electromagnetic behavior of superconducting circuits. Therefore, this paper proposes a simulation model through utilizing which one can evaluate superconducting microwave components in conventional simulators. The model works for a film thickness up to 5λ and can be used up to millimeter-wave frequencies. The proposed model replaces the superconducting film by a sheet with appropriate impedance. The value of the equivalent sheet impedance is determined subject to the current distribution within the film. Through the proposed simulation model, the characteristic impedance and phase constant of several superconducting microstrip transmission lines are obtained using Ansoft HFSS. The results are compared with those from theoretical formulas. The agreement between the results shows that one can obtain the behavior of superconducting microwave components by simulating the structure with the proposed model.

如果不使用全波模拟器，则无法很好地设计超导微波平面组件。但是，众所周知的常规模拟器，即Ansoft HFSS或CST微波工作室，无法预测超导电路的电磁行为。因此，本文提出了一种仿真模型，通过该模型可以评估常规模拟器中的超导微波分量。该模型适用于最大5λ的膜厚最高可以使用毫米波频率。所提出的模型用具有适当阻抗的薄片代替了超导膜。等效薄膜阻抗的值取决于薄膜中的电流分布。通过提出的仿真模型，使用Ansoft HFSS获得了几条超导微带传输线的特征阻抗和相位常数。将结果与理论公式进行比较。结果之间的一致性表明，通过使用所提出的模型模拟结构，可以获得超导微波组件的行为。