Design for transmit bandpass filter and trimming method using superconducting bulk ring resonator and dielectric rods
Design for transmit bandpass filter and trimming method using superconducting bulk ring resonator and dielectric rods
复制标题
使用超导体环谐振器和介质棒的发射带通滤波器设计和微调方法
DOI：
10.1088/1742-6596/97/1/012228
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
S Ohshima
中科院分区：
文献类型：
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作者：
A Saito;T Tomioka;S. Ono;J H Lee;M Osaka;H Teshima;S Ohshima
采用超导体环谐振器和介质微调棒设计了中心频率为5.0GHz、带宽为100 MHz的发射带通滤波器。具有环形谐振器的滤波器小于具有盘形谐振器的滤波器，其中尺寸被定义为输入/输出端口之间的距离。我们发现，该尺寸有助于显着的多极滤波器的小型化。还评估了修剪机制。将介电常数为39的介质棒插入环形谐振腔后，单个环形谐振腔的频移范围达到500 MHz以上。利用切比雪夫函数设计了一个3极点带状线带通滤波器，该滤波器采用3对相同尺寸的环形谐振器和介质微调棒，并通过调整微调棒的位置来实现。我们获得了该带通滤波器的最佳频率响应，具有低损耗和通带涟漪。
We designed transmit bandpass filters (BPFs) by using superconducting bulk ring resonators and dielectric trimming rods at a 5.0 GHz center frequency with a 100 MHz bandwidth. The filter with ring resonators was smaller than the filter with disk resonators, where the size was defined as the distance between the input/output ports. We found that the size contributes significantly to the miniaturization of multi-pole filters. A trimming mechanism was also evaluated. The frequency shift region of a single ring resonator reached more than 500 MHz after we moved a dielectric rod whose dielectric constant was 39 into the ring resonator. A 3-pole strip-line BPF was also designed using a Chebyshev function by using three pairs of ring resonators and dielectric trimming rods with the same dimensions and by adjusting the positions of the trimming rods. We obtained the optimal frequency response with a low loss and passband ripple for this BPF.