A Wideband Bandpass Filter With Reconfigurable Bandwidth Based on Cross-Shaped Resonator
A Wideband Bandpass Filter With Reconfigurable Bandwidth Based on Cross-Shaped Resonator
复制标题
DOI：
10.1109/lmwc.2017.2746679
复制
发表时间：
2017-10-01
影响因子：
3
通讯作者：
Tam, Kam-Weng
中科院分区：
文献类型：
--
作者：
Cheng, Teng;Tam, Kam-Weng
提出了一种基于并联耦合线结构和带开路短截线的十字形谐振器的带宽可重构宽带带通滤波器。p-i-n二极管作为调谐元件，可以实现三种可重构带宽状态。所设计的滤波器的原型报告的绝对带宽调谐范围为1.22 GHz，而分数带宽变化从34.8%到56.5%，当中心在5.7 GHz。仿真结果与实测结果吻合较好。与以往的工作相比，所提出的可重构带通滤波器具有更宽的带宽调谐范围和最大数目的调谐状态。
A wideband bandpass filter (BPF) with reconfigurable bandwidth (BW) is proposed based on a parallel-coupled line structure and a cross-shaped resonator with open stubs. The p-i-n diodes are used as the tuning elements, which can implement three reconfigurable BW states. The prototype of the designed filter reports an absolute BW tuning range of 1.22 GHz, while the fractional BW is varied from 34.8% to 56.5% when centered at 5.7 GHz. The simulation and measured results are in good agreement. Comparing with previous works, the proposed reconfigurable BPF features wider BW tuning range with maximum number of tuning states.