Design of a lumped array of Josephson junction oscillators
Design of a lumped array of Josephson junction oscillators
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约瑟夫森结振荡器集总阵列的设计
DOI：
10.1109/77.233963
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发表时间：
1993
影响因子：
1.8
通讯作者：
H. Olsson
中科院分区：
文献类型：
--
作者：
J. Edstam;H. Olsson
结果表明，电感耦合并联结是约瑟夫森结振荡器阵列的良好候选者。分流器谐振出结固有电容，从而在谐振频率处允许高得多的有效阻抗，但仍然具有小的分流电阻，从而提供窄线宽。与反向分流结相比，当可以使用更少的结和集总阵列时，它们对于大于约100 GHz的频率是有利的，从而给出更大的带宽。给出了避免混沌解和优化输出功率的设计规则。给出了一个集成电路的设计实例，该集成电路由一个在350 GHz处由少至四个结的阵列泵浦的SIS混频器组成。在实际情况下，160 GHz的带宽和400 kHz的线宽应该是可行的。<<ETX>>
It is shown that inductively resistively shunted junctions are good candidates for Josephson-junction oscillator arrays. The shunt resonates out the junction intrinsic capacitance, allowing a much higher effective impedance at the resonance frequence, but still with a small shunt resistance giving a narrow linewidth. Compared to resistively shunted junctions they are advantageous for frequencies greater than about 100 GHz, when fewer junctions and lumped arrays can be used, giving larger bandwidths. Design rules that avoid chaotic solutions and optimize output power are given. A design example of an integrated circuit consisting of an SIS-mixer pumped by an array of as few as four junctions at 350 GHz is given. A bandwidth of 160 GHz and a linewidth of 400 kHz should be feasible in a practical situation.<<ETX>>