PLANAR SUPERCONDUCTING YBCO MICROWAVE MIXER EMPLOYING AN ENGINEERED GRAIN-BOUNDARY WEAK-LINK JUNCTION

被引：5
作者：
SEED, RG [1 ]
DORSEY, PC [1 ]
HOW, H [1 ]
WIDOM, A [1 ]
VITTORIA, C [1 ]
机构：
[1] NORTHEASTERN UNIV,DEPT PHYS,BOSTON,MA 02115
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1994年 / 4卷 / 03期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1109/77.317830
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A microstrip transmission line was patterned from a superconducting YBa2Cu3O7-x film which was laser deposited on a SrTiO3 bicrystal substrate. A microbridge in the microstrip was then patterned at the bicrystal interface to fabricate a superconducting grain boundary junction. Microwave mixing was observed with an input local oscillator frequency of 9.000 GHz, and an input signal frequency of 9.941 MHz. The output signal at 941 MHz was detected as a transmitted signal. The junction was current biased slightly above the critical current I-c. The measured conversion loss was compared to the calculated value based upon a numerical solution of the equation for a superconducting weak link junction.
引用
收藏
页码：149 / 155
页数：7
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