Fabrication and Evaluation of Single-Layer Superconducting Flux Transformer Used in Magnetocardiography
文献类型：期刊论文
| 作者 | Kong, XY ; Chen, GH ; Itozaki, H |
| 刊名 | JAPANESE JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2009 |
| 卷号 | 48期号:4 |
| 关键词 | YBA2CU3O7-X SQUID |
| ISSN号 | 0021-4922 |
| 通讯作者 | Kong, XY: Osaka Univ, Grad Sch Engn Sci, Osaka 5608531, Japan. |
| 中文摘要 | To produce a filter small enough to fit a 2-in wafer in the very high frequency (VHF) band while avoiding parasitic cross coupling among nonadjacent resonators, a novel quasi-lumped element resonator with interdigital capacitor, double-spiral inductor, and pad capacitor have been introduced. This resonator has not only a highly miniature structure but also a very weak far-field radiation. A ten-pole quasi-elliptic filter with group-delay equalization, which has a 7.1-MHz 1-dB passband and a center frequency of 257.5 MHz, is designed and fabricated on a 37.3 mm x 30.1 mm x 0.5 mm LaAlO(3) substrate. The measured results showed a 0.24-dB insertion loss, a 15-dB return loss, and a 70-dB out-of-band rejection. Moreover, the group delay variation is less than 50 ns over 70% of the 1-dB passband and the band where the phase error ripple is within +/- 5 degrees is more than 80% of the 1-dB passband. The overall experimental performance showed excellent agreement with the theory and simulation, which is a good proof of the advantage of our weak far-field radiation resonator. The result showed that the novel resonator is very suitable to fabricate narrowband ultrahigh frequency, VHF, or even lower frequency higb-temperature superconductor filters on a 2-in wafer. |
| 收录类别 | SCI |
| 资助信息 | Global COE Program; Ministry of Education, Culture, Sports, Science and Technology of Japan |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/37883]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Kong, XY,Chen, GH,Itozaki, H. Fabrication and Evaluation of Single-Layer Superconducting Flux Transformer Used in Magnetocardiography[J]. JAPANESE JOURNAL OF APPLIED PHYSICS,2009,48(4). |
| APA | Kong, XY,Chen, GH,&Itozaki, H.(2009).Fabrication and Evaluation of Single-Layer Superconducting Flux Transformer Used in Magnetocardiography.JAPANESE JOURNAL OF APPLIED PHYSICS,48(4). |
| MLA | Kong, XY,et al."Fabrication and Evaluation of Single-Layer Superconducting Flux Transformer Used in Magnetocardiography".JAPANESE JOURNAL OF APPLIED PHYSICS 48.4(2009). |
入库方式： OAI收割
来源：物理研究所
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