Dual-band filtering power divider with capacitor-loaded centrally coupled-line resonators
Dual-band filtering power divider with capacitor-loaded centrally coupled-line resonators
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DOI：
10.1049/iet-map.2016.0217
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发表时间：
2017-01
影响因子：
1.7
通讯作者：
Yunlong Lu;G. Dai;Yi Wang;Taijun Liu;Jifu Huang
中科院分区：
文献类型：
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作者：
Yunlong Lu;G. Dai;Yi Wang;Taijun Liu;Jifu Huang
在这项研究中，一个双频带滤波功分器与电容加载中心耦合线谐振器（CLCCLR）。该设计利用四个CLCCLR、两个电阻和一个电感来实现双频滤波和功率分配的双重功能。通过改变耦合线两端的电容值，可以独立地调节两个通带的中心频率。注意，改变一个通带不会影响另一个通带。为了演示，设计、制作和测量了一个微带滤波功分器。实验结果表明，在不同负载电容值下，当上频带固定为1.75GHz时，下频带中心频率在0.7 ~ 1.0GHz之间变化;当下频带固定为1.0GHz时，上频带中心频率在1.65 ~ 1.95GHz之间变化。测量结果与模拟结果吻合较好。
In this study, a dual-band filtering power divider with capacitor-loaded centrally coupled-line resonators (CLCCLRs) is presented. The proposed design utilises four CLCCLRs, two resistors and one inductor to achieve the dual functions of dual-band filtering and power division. By altering the values of the capacitors loaded at the ends of the coupled lines, the centre frequencies of the two passbands can be adjusted independently. It is noted that changing one passband will not affect the other. For demonstration, a microstrip filtering power divider is designed, fabricated and measured. Under different values of the loaded capacitors, experimental results show that the lower band centre frequency varies from 0.7 to 1.0 GHz with the upper band fixed at 1.75 GHz, whereas the upper band centre frequency varies from 1.65 to 1.95 GHz when the lower band is fixed at 1.0 GHz. The measured results show good agreement with the simulations.