高溫超導(dǎo)帶通濾波器
HIGH Tc SUPERCONDUCTING BANDPASS FILTER
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摘要: 本文報(bào)道用LaAlO3襯底GdBa2Cu3O7高溫超導(dǎo)薄膜研制的四極平行耦合帶通濾波器。在77K測(cè)試,結(jié)果為:中心頻率為8.96GHz,帶內(nèi)插入損耗為0.54dB,帶寬為500MHz。文中還討論了設(shè)計(jì)制作高性能微帶濾波器應(yīng)注意的問(wèn)題。
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關(guān)鍵詞:
- 帶通濾波器; 耦合微帶線; 高溫超導(dǎo)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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