| 叠层片式射频EMI滤波器的研制 |
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| 引用本文： | 刘季超,马国超,樊应县,李建辉,徐鹏飞,李耀坤.叠层片式射频EMI滤波器的研制[J].电子元件与材料,2012,31(12):52-55. |
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| 作者姓名： | 刘季超 马国超 樊应县 李建辉 徐鹏飞 李耀坤 |
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| 作者单位： | 深圳振华富电子有限公司,广东深圳,518109 |
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| 摘 要： | 以LTCC制造技术为基础,自主研制了一种叠层片式EMI滤波器.在研制过程中,通过选择合适的高频介质陶瓷和优化的内电极材料与走线方式,使滤波器获得了超低直流电阻值.测试结果表明:在测试频率为700 kHz时,所制滤波器(2012-103型)的插入损耗值均超过3 dB,而在20 ～200MHz的测试频率范围内,其插入损耗值则均超过25 dB.该滤波器的综合性能完全达到使用要求.
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| 关 键 词： | 叠层片式EMI滤波器 低温共烧陶瓷 抗电磁干扰 |
Preparation and property study of a multilayer RF EMI chip filter |
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| LIU Jichao,MA Guochao,FAN Yingxian,LI Jianhui,XU Pengfei,LI Yaokun.Preparation and property study of a multilayer RF EMI chip filter[J].Electronic Components & Materials,2012,31(12):52-55. |
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| Authors: | LIU Jichao MA Guochao FAN Yingxian LI Jianhui XU Pengfei LI Yaokun |
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| Affiliation: | (Shenzhen Zhenhua Ferrite & Ceramic Electronics Co.,Ltd,Shenzhen 518109,Guangdong Province,China) |
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| Abstract: | A novel kind of multilayer EMI chip filter was designed and fabricated based on the LTCC preparation technique.The filter possessed a super low DC resistance as a result of the employment of suitable high-frequency dielectric ceramics,optimized inner electrode materials and optimized line distribution.The test results show that the insertion loss of the filter(2012-103 type) is above 3 dB when the testing frequency is 700 kHz,while above 25 dB when the testing frequency is in a range of 20-200 MHz.The comprehensive performance of the filter completely fulfills the requirements for practical application. |
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| Keywords: | multilayer EMI chip filter LTCC anti-EMI |
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