Miniaturized HTS coplanar waveguide bandpass filters with highly packed meanderlines
Miniaturized HTS coplanar waveguide bandpass filters with highly packed meanderlines
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DOI：
10.1109/77.919387
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发表时间：
2001-03-01
影响因子：
1.8
通讯作者：
Wang, Z
中科院分区：
文献类型：
--
作者：
Kanaya, H;Shinto, T;Wang, Z
研究了高温超导薄膜共面波导小型化带通滤波器的设计和性能。为了实现小型化滤波器，我们耦合高度填充的曲折线半波长谐振器与叉指。间隙，其中导纳逆变器（J逆变器）由叉指间隙制成。由级联矩阵计算了曲折线的精确J值、磁阻斜率参数和谐振器长度（K矩阵）和散射矩阵（S矩阵）通过2.5维电磁场模拟器获得（HP-Momentum），结果表明，通过引入具有高度填充的曲折线结构的共面波导，可以大大减小滤波器的尺寸（中心频率2GHz，部分带宽15 MHz，涟漪0.1dB）封装在10 mm正方形衬底内。仿真结果与设计结果吻合较好。
Design and performance of miniaturized coplanar waveguide (CPW) bandpass filters (BPFs) using high T-c superconducting (HTS) films have been studied. In order to realize the miniaturized filters, we coupled highly packed meanderline half-wavelength resonators with interdigital. gaps, where admittance inverters (J inverters) were made of interdigital gaps. The exact J values, susceptance slope parameters and the length of the resonators of the meanderline are calculated from the cascade matrix (K-matrix) and scattering matrix (S-matrix) obtained by the 2.5-dimensional electromagnetic field simulator (HP-Momentum), It is shown that the size of the filters can be greatly reduced by introducing CPW with highly packed meanderline geometry (center frequency 2GHz, fractional band width 15MHz, ripple 0.1dB) packed within 10mm square substrate. Simulated performance was in good agreement with the designed one.