Ultra-wideband bandpass filter using CPW-to-microstrip coupling structure
Ultra-wideband bandpass filter using CPW-to-microstrip coupling structure
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DOI：
10.1049/el:20060789
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发表时间：
2006-05
影响因子：
1.1
通讯作者：
H. Hu;X. Huang;Chonghu Cheng
中科院分区：
文献类型：
--
作者：
H. Hu;X. Huang;Chonghu Cheng
提出了一种基于背靠背微带- cpw过渡结构的超宽带带通滤波器。该滤波器由两个微带- cpw转换和一段用作多模谐振器的微带线组成。对该滤波器进行了数值和实验研究。仿真和实测结果表明，该滤波器具有良好的性能，插入损耗小，群延迟变化小于0.2 ns，高频阻带高达16.0 GHz，带外抑制电平低于-20.0 dB。
A novel ultra-wideband bandpass filter based on a back-to-back microstrip-CPW transition structure is presented. The filter is composed of two microstrip-CPW transitions and a section of microstrip line used as a multiple-mode resonator. The filter has been investigated numerically and experimentally. Both simulated and measured results show that the filter has a good performance, including a small insertion loss, a group delay variation of less than 0.2 ns, stopband of up to 16.0 GHz at high frequencies, and an out-of-band rejection level of below -20.0 dB.