| 小型化双通带声表滤波器设计研究 |
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| 引用本文： | 彭雄,彭霄,杜雪松,唐小龙,陈婷婷,蒋平英,马晋毅,唐蜜.小型化双通带声表滤波器设计研究[J].压电与声光,2020,42(5):583-588. |
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| 作者姓名： | 彭雄 彭霄 杜雪松 唐小龙 陈婷婷 蒋平英 马晋毅 唐蜜 |
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| 作者单位： | （中国电子科技集团公司第二十六研究所，重庆 400060） |
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| 摘 要： | 针对小型化双通带声表面波(SAW)滤波器的需求背景,对两端口、两通带的SAW滤波器的设计技术展开研究。通过搭建包含两组耦合模（COM）参数的双通带SAW滤波器声电协同仿真平台,分析优化滤波器性能,成功研制出CSP2520封装的双通带SAW滤波器，其中心频率分别为1 995 MHz和2 185 MHz，通带带宽均为40 MHz，插入损耗小于3 dB，通带间隔离度大于30 dB。测试与仿真结果基本一致。
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| 关 键 词： | 双通带滤波器 声表面波(SAW)滤波器 芯片级封装 耦合模 |
Study on the Design of Miniaturized Dual Band SAW Filter |
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| PENG Xiong,PENG Xiao,DU Xuesong,TANG Xiaolong,CHEN Tingting,JIANG Pingying,MA Jinyi,TANG Mi.Study on the Design of Miniaturized Dual Band SAW Filter[J].Piezoelectrics & Acoustooptics,2020,42(5):583-588. |
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| Authors: | PENG Xiong PENG Xiao DU Xuesong TANG Xiaolong CHEN Tingting JIANG Pingying MA Jinyi TANG Mi |
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| Affiliation: | (The 26th Institute of China Electronics Technology Group Corporation,Chongqing 400060,China) |
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| Abstract: | In view of the demand of the miniaturized dual band SAW filter, the design technology of SAW filter with two ports and two passbands is studied. By building a dual band SAW filter acoustic electric co simulation platform including two groups of coupled mode (COM) parameters, the performance of the filter is analyzed and optimized. A dual passband SAW filter packaged in CSP2520 has been successfully developed. The center frequency of the filter is 1 995 MHz and 2 185 MHz respectively, the passband bandwidths are both 40 MHz, the insertion loss is less than 3 dB, and the isolation between passbands is greater than 30 dB. The test results are consistent with that of the simulation. |
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| Keywords: | dualband filter SAW filter CSP package the coupled mode |
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