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滤波器种类
滤波器种类
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所属报告：
国科微-公司研究报告-BAW自主可控亟待推进并购有望实现协同效应-250607（19页）.pdf
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行业数据
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声学滤波器分类
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行业数据
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常见平面滤波器的典型分类
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2025-06-09
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常见超小型类LC类滤波器
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2025-06-09
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用介质滤波器的主要分类和特点
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2025-06-09
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国内企业已在中低端SAW滤波器市场实现突破
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2025-06-09
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表7国内滤波器企业情况
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2024-10-25
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图3声学滤波器的分类
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2024-10-25
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滤波器是 RFFE核心无源器件，应用领域广泛。滤波器在通信系统中对通信链路中的信号频率进行选择和控制，选择特定频率信号通过，抑制不需要的频率信号，解决不同频段、不同形式的通信系统之间的信号干扰问题，并且有效保持接收和发射频带的隔离，提高通信质量，广泛应用于基站和终端的射频信号处理单元中。滤波器是一种两端口网络，信号从输入端口进入，经过滤波器网络作用，滤除杂波，然后信号从输出端口输出，它的选择特性是由系统要求决定的。滤波器性能的优劣直接影响通信系统的通信质量。滤波器的主要参数包括中心频率、通带带宽、插入损耗、Q值、带外抑制等，其中 Q值与插入损耗最重要。Q值越高，表明滤波器可以实现越窄的通带带宽，即可以实现较好的滤波功能；插入损耗即通带信号经过滤波器之后的信号功率衰减，当插入损耗达到 1dB，则信号功率衰减达到 20%。主流的滤波器有腔体类、介质类、平面类、超小型类 LC类、声波类等。可广泛用于无线通信、雷达系统、科研&医疗领域。
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国科微-公司研究报告-BAW自主可控亟待推进并购有望实现协同效应-250607（19页）.pdf
用介质滤波器的主要分类和特点
腔体类滤波器的主要分类和特点
常见滤波器选择天梯
滤波器“不可能三角”的取舍脉络
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2026-02-24
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