[问答]

动量错误

3668

问答对人有帮助，内容完整，我也想知道答案 0 嗨，我正在尝试使用我从客户收到的电路板上的动量在ADS中运行模拟。不幸的是，板文件作为Altium文件交付给我，而不是作为cadence文件，所以我不得不使用ODB ++文件结构导入布局。文件导入正常，堆栈看起来对我来说正确但在创建网格时我不断收到以下错误：-------------------------- -------------------------------------------------- - - - 警告 - - - - - - - - - - - - - - - - - - - - - - ------------------------ Pin P1位于多个边缘。将销移离任何非预期的边缘。 -------------------------------------------------- - - - - - - - - - - - - - - - - 警告 - - - - - - - - - -------------------------------------------------- 引脚P2位于多个边缘上。将销移离任何非预期的边缘。 -------------------------------------------------- - - - - - - - - - - - - - - - - 警告 - - - - - - - - - -------------------------------------------------- 引脚P4位于多个边缘上。将销移离任何非预期的边缘。 -------------------------------------------------- - - - - - - - - - - - - - - - - 警告 - - - - - - - - - -------------------------------------------------- 需要校正端口设置：校准不会用于端口“P3”（引脚“P3”不在导电区域和非导电区域之间的边缘）。 -------------------------------------------------- -----------------------------在20 GHz生成网格...无法更改进程优先级S参数模拟---警告 -------------------------------------------------- ----------------- 2D端口求解器数据不适用于粗导线馈线，使用默认值（50欧姆）作为传输线参数。 -------------------------------------------------- -----------------------------自动选择：直接压缩矩阵求解器使用多线程（12线程）矩阵大小：36593（缩小：25123）---警告------------------------------------------- ------------------------端口1没有明确的参考引脚，S参数在较高频率下可能变得非物理。 -------------------------------------------------- - - - - - - - - - - - - - - - - 警告 - - - - - - - - - -------------------------------------------------- 端口2没有明确的参考引脚，S参数在较高频率下可能变得非物理。 -------------------------------------------------- - - - - - - - - - - - - - - - - 警告 - - - - - - - - - -------------------------------------------------- 端口3没有明确的参考引脚，S参数在较高频率下可能变得非物理。 -------------------------------------------------- - - - - - - - - - - - - - - - - 警告 - - - - - - - - - -------------------------------------------------- 端口4没有明确的参考引脚，S参数在较高频率下可能变得非物理。我使用其他电路板的节奏几次完成了这个过程，我以前从未遇到过这些问题。我怀疑我的问题在于我正在导入ODB ++文件，但我不确定。我在这里想念的是什么？此致，Mike .M141029100107_log.txt4.7 KB 以上来自于谷歌翻译以下为原文 Hi, I am trying to run a simulation in ADS using momentum on a board that I received from a customer. Unfortunately, the board files were delivered to me as Altium files and not as cadence file so I had to import the layout using the ODB++ file structure. The files import fine and the stack up looks correct to me but I keep getting the following error when creating the mesh: ---------------------------------------------------------------------------------- WARNING ------------------------------------------------------------------- Pin P1 is positioned on more than one edge. Move the pin away from any unintended edges. ---------------------------------------------------------------------------------- WARNING ------------------------------------------------------------------- Pin P2 is positioned on more than one edge. Move the pin away from any unintended edges. ---------------------------------------------------------------------------------- WARNING ------------------------------------------------------------------- Pin P4 is positioned on more than one edge. Move the pin away from any unintended edges. ---------------------------------------------------------------------------------- WARNING ------------------------------------------------------------------- The port setup needed to be corrected: Calibration will not be used for port "P3" (pin "P3" is not on the edge between a conductive and a nonconductive region). ------------------------------------------------------------------------------- Generating mesh at 20 GHz... Could not change process priority S-parameter simulation --- WARNING ------------------------------------------------------------------- The 2D port solver data is not available for thick conductor feedlines, using default values (50 Ohm) for the transmission line parameters. ------------------------------------------------------------------------------- Automatic selection: direct compressed matrix solver Using multi-threading (12 threads) Matrix size: 36593 (reduced: 25123) --- WARNING ------------------------------------------------------------------- Port 1 does not have an explicit reference pin, S-parameters may become unphysical at higher frequencies. ---------------------------------------------------------------------------------- WARNING ------------------------------------------------------------------- Port 2 does not have an explicit reference pin, S-parameters may become unphysical at higher frequencies. ---------------------------------------------------------------------------------- WARNING ------------------------------------------------------------------- Port 3 does not have an explicit reference pin, S-parameters may become unphysical at higher frequencies. ---------------------------------------------------------------------------------- WARNING ------------------------------------------------------------------- Port 4 does not have an explicit reference pin, S-parameters may become unphysical at higher frequencies. I have been through this process several times using cadence with other boards and I have never run into these issue before. I suspect that my problem lies in the fact that I am importing ODB++ files but I am not sure. What am I missing here? Regards, Mike 附件 Test_ODB_wrk.7zads2.6 MB .M141029100107_log.txt4.7 KB 0
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答案对人有帮助，有参考价值 0 端口需要接地参考。在你的叠层中，没有地面层。我推荐一个带有+和 - 端口的端口，用于设计中的每个端口。将（ - ）引脚放在附近的地线上并创建一个端口。以上来自于谷歌翻译以下为原文 Ports require ground reference. In your stackup, there is no ground layer. I recommend a port with + and - terminals for every port you have in your design. Put (-) pins on the nearby ground via and create a port.

2018-11-9 10:36:35 评论举报鄢蓉