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HTS microwave devices and subsystems with pulse tube refrigerators

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16 Author(s)
Yusheng He ; Cryogenic Lab., Acad. Sinica, Beijing, China ; Yuan Zhou ; Jingtao Liang ; Hong Li
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Two new types of pulse tube refrigerators with optimized cooling power of 6 W at 77 K have been designed and fabricated. Experiments show that vibration of the pulse tube refrigerators is at least an order of magnitude smaller than that of Stirling coolers. Two microwave devices, a HTS cavity and a HTS miniature lumped band-stop filter, were integrated with the refrigerators and operated successfully, which demonstrated the potential application of these integrated devices and the refrigerator as practical HTS sub-systems.

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IEEE Transactions on Applied Superconductivity  (Volume:9 ,  Issue: 2 )