| 高温超导微带线的传输特性及其应用 |
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| 引用本文： | 陈殿勇,蔡树榛.高温超导微带线的传输特性及其应用[J].复旦学报(自然科学版),1995,34(3):247-254. |
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| 作者姓名： | 陈殿勇 蔡树榛 |
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| 作者单位： | 复旦大学电子工程系 |
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| 摘 要： | 研究了高温超导微带线的衰减和色散特性。推导了超导体的复电导率和外加直流电流的关系。考虑到实际高温超导材料中分布着约瑟夫逊结并且存在一定的剩余电导率，对复电导率公式作了修正。当微带线的带条厚度和穿透深度相当时，用唯象损耗等效方法分析了电磁场渗人超导体而对微波传输特性产生的影响。
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| 关 键 词： | 微带线 复电导率 超导体 微波传输 高Tc |
Transmission characteristics and applications of high-Tc superconducting microstrip lines |
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| Chen Dianyong, Cai Shuzhen.Transmission characteristics and applications of high-Tc superconducting microstrip lines[J].Journal of Fudan University(Natural Science),1995,34(3):247-254. |
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| Authors: | Chen Dianyong Cai Shuzhen |
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| Institution: | Department of Electronic Engineering |
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| Abstract: | In this paper, the attenuation and dispersion of high-Tc superconducting microstrip lines are studied. The expression for complex conductivity is modified by taking into account the effect of DC current and the influence of the residual normal state conductivity and Josephson junctions. Since the incremental inductance rule is not valid for very thin supercondctor films, superconducting micrlstrip lines are analysed by using PEM method. The effective permittivity is calculated for both overlay wicrostrip lines and two layered microstrip lines by using the variational method and full wavc analysis method. A high Tc superconducting microwave phase shifter is designed and fabricated, the experimental results are agreeable with the theoretical predication very well. |
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| Keywords: | high-Tc superconductor microstrip line complex conductivity Josephson junction phase shifter |
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