前言最近几年电路板非常流行所谓的「meander」导线，然而这种不规则(zigzag)导线随着clock频率不断提高，设计人员也意识到必需使导线pattern尽可能完全相同。理论上从driver端至
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Farsens是一家无源RFID传感器技术和无线传感器网络提供商，推出了一款带LED无源RFID标签，当标签被定位时，可发出闪烁。该RFID标签附加LED的设计目的是让用户更直观地识别项目，让库存盘点或其他处理过程变得更容易。
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本文介绍了MRF24WB0MA/B主要特性，方框图，应用电路图以及Wi-Fi演示板主要特性，电路图和主要元件布局图。
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本文介绍了MRF24WB0MA主要特性，方框图，应用电路图以及Wi-Fi通用演示板主要特性，电路图和元件布局图及主要元件。
2021-05-25 06:02
亲爱的先生，我从C：\ ADS2009 \ examples \ MW_Ckts \ LNA_1GHz_prj中取这个例子，对这个放大器布局有很多疑问。我在下面附上.png文件（这是大ckt，我不能将它整个部分下载一次，我按部分下载，第一部分是上部，第二部分是下部，第三部分是整个部分，以及第四个是完成放大器部分）它是1GHz放大器。我不明白以下几点（1）他们如何将原理图成品放大器转换成放大器布局部分。 （2）您可能会注意到在放大器布局中，两条微带线连接在电容器，电感器，电阻器和MTEES之间。他们如何计算MLIN的值。为什么我们必须在电感，电容，电阻和MTEE之间连接两条微带线。 （3）为什么他们使用SMT_Pad，如何定义它。什么是SMT_Pad的用途？ （4）您可能还注意到，他们使用的电容为sc_mrt_MC_GRM39X7R050_K_19960828，sc_mrt_MC_GR ..............，indutor为sl_cft_0603HS ..............，电阻as sr_ims_RC_I ................... ,.在他们使用这些数字和数值的基础上，我们如何选择这些SMT_Pad电感，电容和电阻。 （5）在某个地方，他们在角落里使用过MCORN，有些人在他们离开的地方。为什么他们没有使用MCORN，哪里有角落。 （6）如果我们想将原理图放大器转换为布局，我们必须将其转换为示例中所示的放大器布局，然后按生成/更新布局。是否足够或其他一些参数，我们必须调整它。 （7）我们如何选择VCC并声明它。我有上述疑问，有人知道，你可以帮助我将原理图放大器逐步转换为放大器布局，就像在ADS 2009 C：\ ADS2009 \ examples \ MW_Ckts \ LNA_1GHz_prj的例子中所做的那样。请纠正它。 Amplifier_Layout_Complete .png151.0 KBAmplifer_Layout_UpperPart.png163.0 KBFinished_Amplifier.png171.5 KB 以上来自于谷歌翻译 以下为原文Dear Sir, I am taking this example from C:\ADS2009\examples\MW_Ckts\LNA_1GHz_prj, have many doubt regarding on this Amplifier layout. I have attached .png files below (It is big ckt , I can't download it entire part it once, I made it part by part, first one is upper part, second one is lower part, third one is entire part, and fourth one is finished amplifier part)it isa 1GHz amplifier. I didn't understand the following points (1) How they have converted the schematic finished amplifier into amplifier layout part. (2) You may notice in the amplifier layout , two microstrips lines connected between capacitor, inductor, resistor and MTEES. How they have calculated the values of MLIN's. Why we have to connect two microstrip lines between inductor , capacitor, resistor and MTEEs. (3) Why they have used the SMT_Pad, how to define it.What is the use of SMT_Pad ? (4) You may also notice , they have used capacitors as sc_mrt_MC_GRM39X7R050_K_19960828, sc_mrt_MC_GR.............., indutor as sl_cft_0603HS..............,resistor as sr_ims_RC_I..................., .On What basis they have used these numbers and values, how we have to choose these SMT_Pad inductor, capacitor , and resistors. (5) Somewhere they have used MCORN at the corner, some where they have left. Why they have not used MCORN, where ever corner is there. (6) If we want to convert the schematic amplifier into layout , we have to convert it as like amplifier layoutshown in the example and later press the Generate/Update Layout . Is it enough or some other parameter, we have to tune it. (7) How we have to choose VCC and declare it. The above doubtsI have , anybody knows, can you help me to convert schematic amplifierintoamplifier layout step by step as it was done in the example of ADS 2009 C:\ADS2009\examples\MW_Ckts\LNA_1GHz_prj .Please rectify it.附件Amplifier_Layout_Lower_Part.png173.8 KBAmplifier_Layout_Complete .png151.0 KBAmplifer_Layout_UpperPart.png163.0 KBFinished_Amplifier.png171.5 KB
2019-01-02 16:54
