研究了在Y211中掺入ZrO_2对于用顶部籽晶熔渗方法制备YBCO块材的影响,以及不同掺杂比例对于样品表面形貌和磁悬浮力的影响.实验表明,随着ZrO_2掺杂量的增加,样品的磁悬浮力有增大的趋势.这种现象可能是由于ZrO_2的掺杂在样品中形成了磁通钉扎中心,有效的提高了超导体的物理性能.
In this paper, The models of HTSC(high temperature superconductivity)resonators are built using CAD programs with full-wave field simulation method. The filter is manufactured on double-sided HTSC (YBa_2Cu_3O_7)film of 400 nm thickness on a LaAIO_3 substrate of 0. 5 mm and has internal coupling. It is tested at77K(the temperature of Liquid nitrogen). Without any tuning, the filter has a bandwidth of 200 MHz; and its center frequency is 3. 4 GHz,the insertion loss is<0. 2dB,and the return loss is>-20dB, band rejection is better than 50 dB. Such a structure of high temperature superconducting filters will have a wide application prospect in mobile communications and satellite communications fields.
参考文献
| [1] | K Iida;N H Babu;E S Reddy .The effect of nano-size ZrO_2 powder addition on the microstructure and superconducting properties of single-domain Y-Ba-Cu-O bulk superconductors[J].Superconductor Science & Technology,2005(3):249-254. |
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