A Novel Compact Tri-Band Bandpass Filter Based on Dual-Mode CRLH-TL Resonator and Transversal Stepped-Impedance Resonator
A Novel Compact Tri-Band Bandpass Filter Based on Dual-Mode CRLH-TL Resonator and Transversal Stepped-Impedance Resonator
复制标题
DOI：
10.2528/pierl15080403
复制
发表时间：
2015
影响因子：
0.9
通讯作者：
H. Cao;M. Yi;Huan Chen;Jianshuo Liang;Yantao Yu;Xiaoheng Tan;Shi-zhong Yang
中科院分区：
文献类型：
--
作者：
H. Cao;M. Yi;Huan Chen;Jianshuo Liang;Yantao Yu;Xiaoheng Tan;Shi-zhong Yang
提出了一种基于复合右手/左手传输线(CRLH-TLS)谐振器和平行阶跃阻抗谐振器(SIR)的具有横向信号相互作用概念的紧凑型三带通滤波器。主路径基于双模CRLH-TL谐振器，呈现出前两个通带。辅助路径是SIR，其贡献第三通带并同时在第一和第二通带之间产生另一传输零。对所提出的滤波器进行了仿真、制作和测试。仿真和测试结果表明，该滤波器具有较高的选择性，体积小至0.18λg×0.12λg。
A novel compact tri-band band-pass filter (BPF) with transversal signal interaction concepts, based on composite right/left-handed transmission lines (CRLH-TLs) resonator and parallel stepped impedance resonator (SIR), is presented. The main path is based on a dual-mode CRLH-TL resonator, which exhibits the first two passbands. The secondary path is a SIR, which contributes to the third passband and generates another transmission zero between the first and second passbands simultaneously. The proposed filter has been simulated, fabricated and measured. Both the simulated and measured results show that the filter has a high selectivity with a compact size as small as 0.18λg × 0.12λg.