Current distribution, resistance, and inductance for superconducting strip transmission lines
Current distribution, resistance, and inductance for superconducting strip transmission lines
复制标题
超导带状传输线的电流分布、电阻和电感
DOI：
10.1109/77.84617
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发表时间：
1991
影响因子：
1.8
通讯作者：
J. Kong
中科院分区：
文献类型：
--
作者：
D. Sheen;S.M. Ali;D. Oates;R. Withers;J. Kong
给出了有限矩形截面耦合超导传输线系统的电流分布、电阻和电感矩阵的计算方法。这些计算使高T/次c/和低T/次c/超导带状传输线的精确表征成为可能。对于具有有限地平面的单个带状线几何形状，计算了电流分布、电阻、电感和动感作为不同膜厚下穿透深度的函数。根据测量的带状线谐振器谐振频率随温度的变化关系，利用这些计算结果确定了Nb、NbN和YBA/sub2/Cu/sub3/O/sub7-x/超导薄膜的穿透深度。这些计算还用于将测量的品质因数随温度的变化换算为Nb带状线谐振器的本征表面电阻作为温度的函数。
A method for the calculation of the current distribution, resistance, and inductance matrices for a system of coupled superconducting transmission lines having finite rectangular cross-section is presented. These calculations allow accurate characterization of both high-T/sub c/ and low-T/sub c/ superconducting strip transmission lines. For a single stripline geometry with finite ground planes, the current distribution, resistance, inductance, and kinetic inductance are calculated as functions of the penetration depth for various film thicknesses. These calculations are then used to determine the penetration depth for Nb, NbN, and YBa/sub 2/Cu/sub 3/O/sub 7-x/ superconducting thin films from the measured temperature dependence of the resonant frequency of a stripline resonator. The calculations are also used to convert measured temperature dependence of the quality factor to the intrinsic surface resistance as a function of temperature for an Nb stripline resonator.<<ETX>>