高温超导带通滤波器
HIGH Tc SUPERCONDUCTING BANDPASS FILTER
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摘要: 本文报道用LaAlO3衬底GdBa2Cu3O7高温超导薄膜研制的四极平行耦合带通滤波器。在77K测试,结果为:中心频率为8.96GHz,带内插入损耗为0.54dB,带宽为500MHz。文中还讨论了设计制作高性能微带滤波器应注意的问题。
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关键词:
- 带通滤波器; 耦合微带线; 高温超导膜
Abstract: A four pole microstrip parallel-coupled bandpass filter have been fabir-cated using epitaxial GaBaCuO thin film on LaAlO3 substrate. At 77k, the passband insertion loss is 0.45dB, the bandwidth is 500MHz. And it is suggested that several problems should be considered tor designing a high performance superconducting microstrip line filter. -
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