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在10mm × 20 mm的 YBCO/LAO/YBCO双面超导薄膜上设计并制作了具有全新电路结构的 5级高温超导（HTSC）小型化微带多曲折线滤波器,在77 K时测得其中心频率为 1.2 GHz,带宽 50 MHz,通带内最小插损0.12dB,此种结构的高温超导滤波器在移动通讯和卫星通讯领域将具有广泛的应用前景.
In the 10mm × 20mm YBCO / LAO / YBCO double-sided superconducting thin film, a 5-stage high temperature superconducting (HTSC) miniaturized microstrip polygranular polyline filter with a new circuit structure was designed and fabricated and measured at 77 K Its center frequency is 1.2 GHz, its bandwidth is 50 MHz and its minimum insertion loss is 0.12 dB in the passband. This kind of structure of high temperature superconducting filter will have a wide range of applications in the field of mobile communications and satellite communications.