【经验】如何利用极点和零点的知识来增强滤波器的设计

时间： 2022-12-15 来源：Knowles官网

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滤波器基础知识9：关于极点和零点的介绍

Knowles通常会提供大量关于滤波器功能的信息来帮助客户选择滤波器。但在该全新滤波器基础系列中，Knowles将退一步来介绍一些关于滤波器如何工作的背景信息。不论滤波器背后的技术如何，所有滤波器都有几个共同的关键概念，Knowles将在整个系列中深入讨论这些概念。通过提供这些详细的基本滤波器资料，希望帮助您简化未来的滤波决策。

在第9部分中，我们将深入了解极点和零点如何影响传递函数的背景信息，以向您展示如何利用这些信息来提高滤波器的性能。

在滤波器基础知识系列第7部分中，我们讨论了看待Q因子的不同方法，其中之一是考虑极点Q因子（通常用于更复杂的系统）。在那篇文章中，我们还解释了滤波器有一个传递函数 H （s），它告诉我们对于给定的输入信号，输出信号是什么样的。注意，滤波器传递函数是用复数变量 s 表示的。

极点和零点是传递函数的性质，一般来说，使函数趋向于零的解叫做零点，使函数趋向于最大函数的根叫做极点。让我们用一个简单的RC一阶低通滤波器来看看它是如何工作的，就像我们在第2部分中看到的那样。（见图1）

该滤波器的传递函数用复频率s表示为：

因此，当s（频率）= 0 时，传递函数为1，我们称滤波器的直流增益为1。当s = -1/RC 时，传递函数将趋于无穷，因此可以称，当频率 s = -1/RC 时，我们有一个单一的“极点”。

现在，知道当 s = -1/RC 时有一个“极点”并不能帮助我们理解滤波器对频率 ω 的表现，至少现在还不能。为了确定这一点，我们来看一个更常规的一阶滤波器的传递函数：

为了理解频率响应，我们将 s 替换为 jω ，其中 j 为虚数“i ”：

当 jω =-a 时，传递函数趋于无穷，我们称之为有一个极点。

接着，如果我们在“零极”图（零点极点图）的复平面上绘制 -a 的极点，并用 X 标记它，您将得到如图2所示的图形。为了解传递函数在不同频率值下的表现，我们可以在表示了不同 jω 值的虚（竖）轴上进行频率值的增减：

我们的传递函数将以以下方式执行-随着从极点到响应频率的距离增加，在除以绿色向量（a + jω）的大小之后，信号将减少。

对该传递函数的一些附加注意事项：

在 jω = 0 时—如果我们停留在虚轴上，尽可能地接近极点，传递函数 Y 将达到最大值
在 jω = ∞ 时—我们尽可能地远离极点，传递函数 Y 将处于最小值
在 jω = a 时—我们的振幅将相较其最大值下降√2倍，以 dB 为单位就是 -3dB，我们称之为截止频率

因此，在这个简单的例子中，我们在 -a 处的极点给出了在 a 处的截止频率。

同样的，在先前的RC滤波器示例中，我们在 -1/RC 处的极点也给出了在 ω = 1/RC 处的截止频率。这是有意义的，我们可能已经知道这是一个RC滤波器的截止频率，但经过对零极图的分析，可以辅助我们理解极点如何影响滤波器的性能。

利用极点和零点的知识来增强您的过滤器设计

通过这个单极点的例子，我们可以得出以下关于极点的大致情况：

在复平面上响应频率离极点越近，滤波器的传递函数就越大
在复平面上响应频率离极点越远，滤波器的传递函数就越小
零点具有相反的效果——响应频率越接近极点，滤波器传递函数就越小，反之亦然。

作为射频工程师，如果您深入了解极点和零点的工作原理，您可以在滤波器设计中利用这些知识并改进滤波器的响应。例如，您可以将零点设置在想要抑制的频率附近，将极点设置在想要通过的频率附近。

在滤波器基础知识系列的第10部分中，我们将讨论谐振器的所有内容，包括微波器件谐振器、同轴陶瓷谐振器和介质谐振器。

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SFAJL5000471MX,SFBDC5000220ZC,SFSUC5000150ZC0,SFBDT5000102MX,SFCMC5000333MX,SFBCC5000102MX,SFJGL5000224MX,SBSGC5000102MX,SFCDC5000681MX,SFBLL5000333MX,SFABL5000102MX,SFKKC5000330ZC,SFBML5000100ZC,SFAKT1000104MX,SFBML5000151MC,SFJNL2K00331MC,SFBCL5000681MX,SFCML5000221MC,SFJGL2K00471MC,SFKKT5000103MX,SFJNL2K00682MX,SFJGL1K00223MX,SFSUC5000680MC0,SFABC2000683MX,SFJGL1K00683MX,SFAKT5000681MX,SFBMC5000102MX0,SFABC5000103MX,SFBCL1000104MX,SFLMC1000104MX,SFBCP5000442ZX,SFBDT5000333MX,SFJNL2K00222MX,SFJGC2000105MX,SFJGP5000944MX,SFAJC5000472MX,SFBCP5000200ZC,SFAAC,SFCMC5000104MX,SFSUC5000683MX0,SFBDL5000470ZC,SFBCC5000333MX,SFKKC5000152MX,SFKKT5000101MC,SFCML5000683MX,SBSGC5000333MX,SFBDP5001N36MX,SFBDP5000443MX,SFBDC5000100ZC,SFBMP5000302MX,SFBDT5000331MC,SFTMC5000470ZC,SFABL5000333MX,SFBDT5000222MX,SFCDL5000471MX,SFBDC5000151MC,SFBDP5000201MC,SBSGC5000222MX,SBSMP5000152MX,SFAJC5000221MC,SFJNL2K00102MC,SFKKT5000332MX,SFKBL5000470ZC,SFKKL5000220ZC,SFLMP0500304MX0,SFAJC1000104MX,SFBCL5000101MC,SFBLL5000331MC,SFJGC5000334MX,SFCDL,SFCDC5000101MC,SFABL5000682MX,SFAJL5000153MX,SFBDP5000663MX,SFJGC3K00151MC,SFCDP,SFCMC5000222MX,SFJGC2K00472MX,SFKKT5000223MX,SFBML5000153MX,SFBCC5000150ZC,SFJNC2K00103MX,SFBCC5000682MX,SFBLL5000222MX,SFCDC,SBSMC5000472MX,SFABL5000150ZC,SFBDT2000473MX,SFBMT2000683MX,SFBMC5000472MX,SFCDC5000332MX,SFLMT5000100ZC,SFBCL5000332MX,SFLMC5000101MC,SFCDL1000474MX,SFJNL1000155MX,SFTMC5000333MX,SFLML5000680MC,SFAAC5000100ZC,SFCDC5000683MX,SFBCC2000473MX,SFKKL5000100ZC,SFABL5000680MC,SFLML5000153MX,SFKKT5000681MX,SFKKL5000151MC,SFABC5000101MC,SFAAC5000151MC,SFKKT5000221MC,SFBCC5000680MC,SFABL2000473MX,SFJNC0500335MX,SFTMC5000150ZC,SFSUC5000223MX0,SFCDP5000942MX,SFAKL2000683MX,SFCDL5000153MX,SFUMC5000220ZC,SFABC5000332MX,SFAKL5000332MX,1206Y1000103MXTE07,SFLML2000473MX,SFLMT5000151MC,SFLMC5000221MC,SFBLC5000332MX,SFBLC2000683MX,SFDPP0500944MX0,SFSRC5000220ZC0,SFAAC5000471MX,SFCMC5000102MX,SFLMP5000942MX,SFBDP5000301MC,SFCMC2000224MX,SFBCL2000683MX,SFCML5000681MX,SFAJC5000681MX,SFAJL5000100ZC,SFBLL5000102MX,SFCML5000472MX,SFKKT1000104MX,SBSPP1000682MX,SFBCL5000221MC,SFBDT5000150ZC,SBSGC5000682MX,SFAJL5000151MC,SFCDC5000221MC,SFBCP5000202ZX,SFLMC5000223MX,SFBML5000220ZC,SFABC5000223MX,SFJGP1K0136NMX,SFBDP5000203MX,SFKKT2000683MX,SFAKC5000470ZC,SFLMC5000332MX,SFCMC5000150ZC,SFKBL5000682MX,SFAAC5000153MX,SBSMC1000224MX,SFBDC5000153MX,SFJNC2K00332MX,SFLMT5000220ZC,SFAKT5000472MX,SFBLL5000150ZC,SFJGL5000104MX,SFLML5000471MX,SFSTC5000101MC0,SFJGC2K00103MX,SFAJL5000331MC,SFTMC,E01,SFBCP1000443ZX,E03,SFAKC5000152MX,SFAAC2000473MX,SFCDL5000102MX,E07,SBSGP5000222MX,SFBMC5000681MX,SFBMT5000220ZC,SFUMC0500154MX,SFJGL2K00331MC,SFUMC5000680MC,SFAJL5000682MX,SFKBL5000222MX,SBSGP0500224MXB,SFAJL5000222MX,SFBMP2000943MX0,SFKBC5000103MX,SFAJC2000683MX,SFJGP2K00302MX,SFKBL5000331MC,SFCDC5000154MX,SFKKC5000470ZC,SFBCC5000471MX,SBSMP5000472MX,SFJGL2K00682MX,SFBLC5000220ZC,SFABL5000471MX,SFKBC5000223MX,SFCMC5000473MX,SBSMC5000683MX,SBSMC5000223MX,SFJNC2000105MX,SFLML5000220ZC,SFJGL2K00222MX,SFAKL5000220ZC,SFTMC5000330ZC,SFBMP5000442MX,SFCML0500684MX,SFLMT2000683MX,SFBLC5000151MC,SFKBL5000102MX,SBSPP1000222MX,SFSUC1000334MX0,SFTMC2000473MX,SFCMC,SFAKT5000152MX,SFBML0500154MX,SBSGC5000473MX,SFCDL5000222MX,SFCML,SFBML5000471MX,SFAAC5000220ZC,SFAJC5000330ZC,SBSGP5000102MX,SFBLL5000680MC,SFJNL5000154MX,SBSMC5000332MX,SFUMC5000101MC0,SFLML5000151MC,SFCMC5000680MC,SFBMC1000104MX,SFJGL0500335MX1,SFBLC5000681MX,SFAKT2000683MX,SFLMC5000103MX,SFKBL2000473MX,SFBMT1000104MX,SFCDL5000331MC,SFBCC5000102MX0,SFBDT5000470ZC,SFAKL5000100ZC,SFJGP2K00942MX,SFLMC2000683MX,SFLML5000100ZC,SFLMT5000103MX,SFBLP0500943ZX,SFJGC2K00332MX,SFAKL5000151MC,SFAKL5000681MX,SFBLC5000100ZC,SFBMP5000662MX,SFCML5000103MX,SFKBL5000333MX,SFBMP5000940ZC,SFUMC5000151MC,SBSGC5000153MX,SFSTC5000472MX0,SFBMC5000330ZC,SFSTC5000102MX0,SFAJL0500154MX,SFKBL5000150ZC,SFKBC5000221MC,SBSPP1000102MX,SFBCL5000472MX,SFCMC5000331MC,SFBDT5000102MX0,SFUMC5000100ZC,SFCDL5000680MC,SFJGC0500335MX,SFAKL5000472MX,SFKBC5000101MC,SFBMT5000153MX,SFSUC5000332MX0,SFABL,SFBLC5000472MX,SFCDC5000472MX,SFBCP5000941ZX,SFBDL5000330ZC,SFBCL5000152MX,SFCDC5000152MX,SFABC,SFCDP5000302MX,SFAKL1000104MX1,SFJGC2K00681MC,SFBMT5000100ZC,SBSMC2000154MX,SBSMP2000104MX,SBSGP0500224MX,SFJNL1K00153MX,SFSRC0500473ZX0,SFAJL2000683MX1,SFBLC5000153MX,SFJGP2000205MX,SFBDP5000661MC,SFAKL5000153MX,SFJGL2K00102MC,SFKKL2000683MX,SFCDL5000682MX,SFBMP50013N6MX,SFBMT5000151MC,SFCML5000332MX,SFCDL5000473MX,SFKBC5000332MX,SFBDL5000152MX,SFBLP2000203ZX,SBSMC5000103MX,SFBMP5000202MX,SFAKT5000330ZC,SFBLL0500154MX,SFJNC3000684MX,SFJGL1000225MX,SFBDC2000683MX,SFUMC5000471MX,SFCML5000101MC,SFSUC5000220ZC0,SFBML5000680MC,SFAJL5000680MC,SFBLL5000682MX,SFBMC5000152MX,SFAKC5000330ZC,SFCML5000223MX,SFSTC2000473MX0,SFBDP5000441MC,SFJGC1K00333MX,SFAJC5000152MX,SFUMC5000153MX,SFCMC5000682MX,SFJGP1K00943MX,SFBDC5000331MC,SFBDT5000330ZC,SFLMT2000473MX,SFBDC5000222MX,SFBDP5000941MX,SFCDP5000661MC,SFBCC5000151MC,SFCDP5000201MC,SFBCC5000100ZC,S

选型指南 - KNOWLES - v4 - 2022/8/25 PDF 英文下载查看更多版本

Knowles（楼氏电子）EMI滤波器选型指南

目录- General and Technical Introduction SM EMI Filters Panel Mount EMI Filters Discoidals, Planar Arrays and Special Filters

型号- SFLMP5000440ZC,SFBDC5000220ZC,SFSUC5000150ZC0,SFCDP2000943MX0,SFCMC5000333MX,SFBDP2000943MX0,SFJGL5000224MX,SFBCC5000332MX,SBSGC5000102MX,SFCDC5000681MX,SFBLL5000333MX,SFCML5000682MX,SBSGC5000332MX,SFKKC5000330ZC,SFABL5000332MX,SFBLL2000683MX,SFBML5000151MC,SFJNL0500335MX,SFJNL2K00331MC,SFKKT5000333MX,SFBCL5000681MX,SBSGC5000223MX,SFSRC5000221ZC0,SFJGL2K00471MC,SFBCL5000102MX0,SFKKC5000220ZC,SFBDP5000662MX,SFJGL1K00223MX,SFJGP0500665MX1,SFABC2000683MX,SFAKT5000681MX,SFBML5000152MX,SFBMC5000102MX0,SBSPP0500154MX,SFCDP5000660ZC,SFJGL2K00472MX,SBSMP,SFKKT5000150ZC,SFBCP5000442ZX,SFBDT5000333MX,SFJNL2K00222MX,SFCMC5000683MX,SBSMC5000473MX,SFJGP5000944MX,SFAAC,SFCMC5000104MX,SFCMC5000332MX,SFBCL,SFBLL5000332MX,SFKKC5000152MX,SFBCC5000333MX,SFBCP,SFCML5000683MX,SBSGC5000333MX,SFBDP5001N36MX,SFABL2000683MX,SFBMP5000302MX,SFABL5000333MX,SBSPP,SFBCC2000683MX,SFJNL2K00681MC,SFBDC5000151MC,SBSGC5000222MX,SFBCC,SFKKT5000332MX,SFJNL2K00102MC,SBSMP5000152MX,SFKKL5000220ZC,SFCDL5000154MX,SFLMP0500304MX0,SFCDL,SFCML1000334MX,SFJGC2K00222MX,SFABL5000682MX,SFBDP5000663MX,SFJGC3K00151MC,SFBDC5000330ZC,SFCDP,SFJGC2K00472MX,SFAKT5000682MX,SFBCC5000150ZC,SFAKL5000333MX,SFBCC5000682MX,SFBLC5000333MX,SFKKC5000151MC,SFBDT5000332MX,SBSMC5000472MX,SFCDC,SFABL5000150ZC,SFJNC3K00221MC,SFBMT2000683MX,SFAAC5000333MXO,SFCDC5000332MX,SFBCL5000332MX,SFJGC2K00471MC,SFLMT5000330ZC,SFTMC5000333MX,SFCDC5000683MX,SFKKT5000681MX,SFKKL5000330ZC,SFKKL5000151MC,SFJGC5000224MX,SFAAC5000151MC,SFUMC5000330ZC,SFABL5000681MX,SFJGC0500335MX1,SFJNC0500335MX,SFJGL3K00151MC,SFTMC5000150ZC,SFJNC2K00102MC,SFAJL5000152MX,SFAAC5000152MX,SFAKL2000683MX,SFUMC5000220ZC,SFJNC2K00331MC,SFABC5000332MX,SFAKL5000332MX,SFBDP5000302MX,1206Y1000103MXTE07,SFBDC5000152MX,SFBMT5000102MX0,SFBDP50013N6MX,SFLMT5000151MC,SFBCC5000681MX,SFJNL3000684MX,SFBLC5000332MX,SFBLC2000683MX,SBSGC1000104MX,SFJNL3K00151MC,SFDPP0500944MX0,SFSRC5000220ZC0,SFABC5000150ZC,SFBDP5000301MC,SFCMC0500684MX,SFBCL2000683MX,SBSMC,SFCML5000681MX,SFAJC5000681MX,SFCDC5000682MX,SBSMC1000334MX,SFBCL5000682MX,SFJGC2K00102MC,SFKKT5000682MX,SBSPP1000682MX,SFBDT5000150ZC,SFJNC1K00153MX,SBSGC5000682MX,SFAJL5000151MC,SFCDP5000440ZC,SFJGB2000223MX1,SFLMP5000660ZC,SFJGL2K00681MC,SFBML5000220ZC,SFKKT2000683MX,SFJNC2K00222MX,SFJNL,SFSUC5000682MX0,SFLMC5000332MX,SFKBL5000682MX,SFCMC5000150ZC,SBSGP1000104MX,SFBML5000330ZC,SBSMC1000224MX,SFCDC1000334MX,SFCDL5000152MX,SFAJL5000330ZC,SBSMC5000682MX,SFKBL2000683MX,SFLMT5000220ZC,SBSGC2000683MX,SFBLL5000150ZC,SFABC5000333MX,SFJGL5000104MX,SFKKL5000152MX,SFJGC2K00103MX,SFJNC,SFTMC,SFAKC5000152MX,SBSGP5000222MX,SFBMC5000681MX,SFCDL5000332MX,SFBMT5000220ZC,SFJGL2K00331MC,SBSPP1000221MC,SFCDL5000683MX,SFAJL5000682MX,SFBMP2000943MX0,SFKBC5000333MX,SFAJC2000683MX,SBSMC5000333MX,SFJGP2K00302MX,SFCDC5000154MX,SFLML5000330ZC,SFSSC5000102MX0/0046,SFBCP0500943ZX0,SFBLC5000682MX,SBSMP5000472MX,SFLMC5000333MX,SFBLC5000220ZC,SBSMC5000683MX,SBSMC5000223MX,SFBDL2000683MX,SFLMP5000300ZC,SFLML5000220ZC,SFJGL2K00222MX,SFAKL5000220ZC,SFAKL5000682MX,SFBMT5000330ZC,SFCML0500684MX,SFBMC5000220ZC,SBSPP1000101MC,SFKBL5000332MX,SFBLC5000151MC,SBSPP1000222MX,SBSGP5000223MX,SFSUC1000334MX0,SFCDP200136NMX,SFSTC5000331MC0,SFAKT5000152MX,SFCMC,SFLML5000152MX,SFLMC5000150ZC,SBSMC0500474MX,SBSGC5000473MX,SFCML,SFAAC5000220ZC,SFAJC5000330ZC,SBSGP5000102MX,SBSMC5000332MX,SFUMC5000101MC0,SFUMC5000681MX,SFLML5000151MC,SBSGC5000472MX,SFLMT5000150ZC,SBSPP1000332MX,SFKBC5000682MX,SFJGL0500335MX1,SFBLC5000681MX,SBSMP5000473MX,SFAKT2000683MX,SFLMT5000101MC0,SFAAC5000330ZC,SBSMC5000222MX,SFBCC5000102MX0,SFJGP2K00942MX,SFAKC2000683MX,SFCDL5000101MC0,SFSUC5000154MX0,SFLMC2000683MX,SFKBC5000150ZC,SFAKL5000151MC,SFAKL5000681MX,SFBMP5000662MX,SFBDL5000220ZC,SFBCL5000151MC,SFKBL5000333MX,SFAKL5000152MX,SFUMC5000151MC,SFAJC5000220ZC,SFCDC5000151MC,SBSGC5000153MX,SFJGP2K00941MC,SBSMP5000153MX,SFSUC5000151MC0,SFBLC5000152MX,SFBMC5000330ZC,SFSTC5000102MX0,SFKBL5000150ZC,SFCDL5000681MX,SFJGC2K00331MC,SBSPP1000102MX,SFBML5000681MX,SFCML5000333MX,SFBDT5000102MX0,SBSGP5000103MX,SFJGC0500335MX,SFAKT5000151MC,SFBDL,SFSUC5000332MX0,SFBDP,SFABL,SFLML2000683MX,SFAJC5000151MC,SFBDT,SFBMC5000151MC,SFJGC5000104MX,SFJNC3K00101MC,SFBCP5000941ZX,SFBDL5000330ZC,SFBCL5000152MX,SFBLL5000681MX,SFUMC5000152MX,SFCDC5000152MX,SFBDC,SFABC,SFBMP5000663MX,SFCMC5000681MX,SFBMP5000301MC,SFCML5000150ZC,SFCDP5000302MX,SFAKL1000104MX1,SFBDT2000683MX,SFJGC2K00681MC,SBSMC2000154MX,SBSMP2000104MX,SBSGP0500224MX,SFAJL5000681MX,SFJNL1K00153MX,SFUMC,SFAJL2000683MX1,SBSGC5000152MX,SFAKC5000151MC,SFKKL2000683MX,SFJGL2K00102MC,SFCDL5000682MX,SFBMP50013N6MX,SFBMT5000151MC,SFCML5000332MX,SFKBC5000332MX,SBSPP1000103MX,SFKKL5000101MC0,SFBDL5000152MX,SBSMC5000103MX,SFBCC5000220ZC,SFBMT5000152MX,SFAKC5000220ZC,SFJGC1K00223MX,SFAKT5000330ZC,SFBDL5000151MC,SFJNC3000684MX,SBGP0500224MXB,SFBDC2000683MX,SFBCP5000940ZC,SFABL5000220ZC,SFAAC2000683MX,SFSRC5000222ZX0,SFSUC5000220ZC0,SFBML5000102MX0,SFBLL5000682MX,SFBMC5000152MX,SFAKC5000330ZC,SFSTC2000473MX0,SFSTC5000682MX0,SFAKT5

选型指南 - KNOWLES - v4 - 2022/3/18 收起

【技术】解析滤波器的形状因子和选择性

本文中Knowles将为大家介绍滤波器的形状因子和选择性。

技术探讨发布时间 : 2023-03-23

B100JB5S 10GHz Surface Mount Bandpass Filter

型号- B100JB5S-T,B100JB5S

数据手册 - KNOWLES - July 2024 PDF 英文下载

【技术】解析S参数及S参数反映的滤波器信息

为了帮助客户选择滤波器，Knowles通常会提供很多关于Knowles的滤波器可以做什么的信息。但在这个新的滤波器基础系列中，Knowles将介绍一些关于滤波器如何发挥作用的背景信息。所有滤波器都有几个关键概念，Knowles将在整个系列中深入探讨。

技术探讨发布时间 : 2022-12-02

Knowles使用稳定的高Q值陶瓷来开发体积小、选择性高的陶瓷腔体低损耗带通滤波器

Knowles使用稳定的高Q值陶瓷来开发体积小、选择性高的陶瓷腔体低损耗带通滤波器。典型陶瓷腔体滤波器比使用波导技术设计的滤波器小30倍。通过多端口实现，Knowles可以创建一个非常小、稳定的滤波器，具有宽阻带性能，没有杂散模式。

厂牌及品类发布时间 : 2023-02-07

Filter Type SFSWR Solder Mount Hermetic EMI Filter (3.25mm Body Diameter, Glass Hermetic Sealed Bottom End) Datasheet

型号- SFSWR5000331MC0,SFSWR5000102MX0,SFSWR5000221MC0,SFSWR5000100ZC0,SFSWR5000472MX0,SFSWR5000682MX0,SFSWR5000471MC0,SFSWR,SFSWR5000103MX0,SFSWR5000680ZC0,TYPE SFSWR,SFSWR5000681MX0,SFSWR5000330ZC0,SFSWR5000222MX0,SFSWR5000151MC0,SFSWR5000101MC0,SFSWR2000223MX0,SFSWR1000333MX0,SFSWR5000220ZC0,SFSWR5000332MX0,SFSWR2000153MX0,SFSWR1000223MX0,SFSWR5000470ZC0,SFSWR5000152MX0

数据手册 - KNOWLES - Issue 1 - 2024/5/2 PDF 英文下载

Knowles（楼氏电子）符合AEC-Q200标准的汽车级电容器选型指南

目录- AUTOMOTIVE GRADE CAPACITORS INTRODUCTION GENERAL AND TECHNICAL INTRODUCTION MLC CAPACITORS SM EMI FILTERS

型号- 1808JA250102JCTSP,1808JA250102JXTPY2,1808JA250102GJTSYS,2220YA300563KSTS3X,085J2500101JHT,1812Y1000334MXTE03,1812Y5000474KJTWS2,1206Y1000473KNT,1206Y0500224KXT---,2220JA250102JXTB16,1206Y1000103MXTE07,1808JA250102KJTSYX,0805Y1000103KST---,1210Y2000103KCT---,1808JA250102GJTS2X

选型指南 - KNOWLES - R12.3 - 09282022 PDF 英文下载查看更多版本

【技术】Knowles带您一文读懂微带滤波器

楼氏电容自2020年收购IMC以来，进一步拓展了射频和微波滤波解决方案相关产品系列。在此期间，楼氏电容还就最受市场欢迎的滤波器类型之一——微带滤波器进行了持续创新，并拓展了相关产品系列。本文Knowles将带您一文读懂微带滤波器

技术探讨发布时间 : 2023-03-10

Filter Type SFSWG Solder Mount Hermetic EMI Filter (3.25mm Body Diameter, Glass Hermetic Sealed Flange End) Datasheet

型号- SFSWG5000471MC0,SFSWG,SFSWG1000223MX0,SFSWG5000151MC0,SFSWG1000333MX0,SFSWG5000220ZC0,SFSWG5000101MC0,SFSWG2000153MX0,SFSWG5000330ZC0,SFSWG5000680ZC0,SFSWG5000102MX0,SFSWG5000103MX0,SFSWG2000223MX0,SFSWG5000681MX0,SFSWG5000682MX0,TYPE SFSWG,SFSWG5000470ZC0,SFSWG5000221MC0,SFSWG5000332MX0,SFSWG5000222MX0,SFSWG5000100ZC0,SFSWG5000472MX0,SFSWG5000331MC0,SFSWG5000152MX0

数据手册 - KNOWLES - Issue 1 - 2024/5/2 PDF 英文下载