Tuning properties of 2 GHz superconducting microstrip-line filters
Tuning properties of 2 GHz superconducting microstrip-line filters
复制标题
2 GHz 超导微带线滤波器的调谐特性
DOI：
10.1109/77.919376
复制
发表时间：
2001
影响因子：
1.8
通讯作者：
R. Katoh
中科院分区：
文献类型：
--
作者：
H. Fuke;Y. Terashima;H. Kayano;M. Yamazaki;F. Aiga;R. Katoh
我们制作了一个2GHz的12极超导微带线滤波器和一个2极电调谐滤波器使用叉指电极和介质膜。通过在电极之间施加偏压，堆叠在滤波器上的SrTiO/sub 3/膜的介电常数的变化导致可调谐性。在60 K、75 kV/cm下，中心频率调制范围为13 MHz（0.7%）。通过改进电极结构，提高了微波频率响应。这种调谐方法被认为是有前途的，在多极滤波器中的各个谐振元件可以独立地调谐。
We have fabricated a 2 GHz 12-pole superconducting microstrip line filter and a 2-pole electrically tunable filter using interdigital electrodes and dielectric film. The change of the dielectric constant of a SrTiO/sub 3/ film, stacked on the filter, by applying a bias voltage between the electrodes leads to the tunability. The range of the center frequency modulation was 13 MHz (0.7%) at 60 K, 75 kV/cm. The microwave frequency response was improved by modification of the electrode structure. This tuning method is considered to be promising in that individual resonance elements in multi-pole filters can be tuned independently.