A compact dual-passband filter based on bulk acoustic wave technology
A compact dual-passband filter based on bulk acoustic wave technology
复制标题
基于体声波技术的紧凑型双通带滤波器
DOI：
10.1109/mwsym.2015.7166848
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
W. Pang
中科院分区：
文献类型：
--
作者：
Yunpeng Sun;Qingrui Yang;Hao F. Zhang;Daihua Zhang;W. Pang
设计并制作了一种基于体声波（BAW）技术的小型射频双通带滤波器。这种紧凑的滤波器在使用双标准系统的手持设备中具有很好的用途。双通带滤波器由两个具有共享输入和输出端口的带通BAW滤波器实现。一个简单的匹配网络被用来提供高性能的双通带响应，几乎没有相互退化。测量的插入损耗通常在较低通带和较高通带中均在2.0 dB左右，并且通带外的滤波器抑制大于30 dB。
A compact RF dual-passband filter based on bulk acoustic wave (BAW) technology is designed and fabricated for wireless applications. Such a compact filter has promising uses in handheld devices where dual-standard systems would be used. The dual-passband filter is achieved by two band-pass BAW filters with shared input and output ports. A simple matching network is used to provide high performance dual-passband response with little mutual degeneration. The measured insertion loss is around 2.0 dB typically in both the lower and the upper passbands, and the filter rejections out of the passbands are more than 30 dB.