標題: 釔鋇銅氧高溫超導薄膜之微波特性研究
Study on Microwave Characteristics of High-Tc Superconducting YBa2Cu3O7-x Thin Films
作者: 許□通
Heng-Tung Hsu
曾俊元
Tseung-Yuen Tseng
電子研究所
關鍵字: 釔鋇銅氧;高溫超導;微波;superconducting; thin film; microwave
公開日期: 1994
摘要: 在此論文中,主要是探討一包含高溫超導薄膜,損耗性介電基板與金接地結
構之微波等效表面阻抗.我們除了以傳統二流體模型來理論模擬超導層外,
並將介電基板對微波吸收及金有限之電導率都納入考慮.關於該結構對於
平面波之散射情況,在某些特定之條件下,基板共振現象將會發生且整個結
構將變成具損耗之共振器.所有影響此共振現象之因素均被探究.至於微波
量測方面,我們製造了單面超導之環型共振器並加以量測;結果顯示在 79K
下之品質因子約為2400.
We have calculated the microwave effective surface impedance
for a structure composed of a superconducting thin film, a
lossy dielectric substrate and a gold ground layer.While the
classical two-fluid model is used for the superconductor, the
absorption of the dielectric substrate and the conductivity of
the gold ground plane are included in the analysis.In the
scattering of plane wave by such a structure, substrate
resonance can occur and the structure will act as a lossy
resonant circuit under certain conditions.We have also
investigated all the factors that influence the substrate
resonance phenomenon.As for the microwave measurement, we have
fabricated a single-sided YBCO ring resonator and tested its
performance.Results revealed that measured Q was around 2400 at
79K.
URI: http://140.113.39.130/cdrfb3/record/nctu/#NT830430040
http://hdl.handle.net/11536/59227
Appears in Collections:Thesis