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首页> 外文期刊>IEEE Transactions on Applied Superconductivity >Coplanar quarter-wavelength resonator filters fabricated by thesuperconducting sol-gel films
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Coplanar quarter-wavelength resonator filters fabricated by thesuperconducting sol-gel films

机译:由超导溶胶-凝胶膜制备的共面四分之一波长谐振器滤波器

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High temperature superconducting Y-Ba-Cu-O films were prepared on MgO polycrystal substrates by the sol-gel process. The average transition temperature and the surface resistance are 83 K and 2.8 mΩ (at 30 K and 9.9 GHz, input power =-10 dBm), respectively. We fabricated a YBCO coplanar waveguide (CPW) quarter-wavelength (λ/4) resonator around 2 GHz (the length of the resonator is one half as long as that of the popular half-wavelength (λ1/2) resonator) and compared its RF properties with that of a λ/2 resonator. Moreover, 2-pole CPW bandpass filter using YBCO sol-gel film was constructed with capacitively coupled λ/4 resonators. It has a narrow fractional bandwidth (3.60%) at 30 K
机译:通过溶胶-凝胶法在MgO多晶衬底上制备了高温超导Y-Ba-Cu-O薄膜。平均转变温度和表面电阻分别为83 K和2.8mΩ(在30 K和9.9 GHz时,输入功率= -10 dBm)。我们在2 GHz附近制作了一个YBCO共面波导(CPW)四分之一波长(λ/ 4)谐振器(该谐振器的长度是流行的半波长(λ1/ 2)谐振器的一半),并对其进行了比较射频特性与λ/ 2谐振器相同。此外,使用电容耦合的λ/ 4谐振器构造了使用YBCO溶胶-凝胶薄膜的2极CPW带通滤波器。在30 K时具有很窄的分数带宽(3.60%)

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