ADS求助，已经快被逼疯了。

桃儿爷。

请问楼主这个问题解决了吗，我最近在做作业，也是出现了这样的问题。在原理图S参数仿真这一步，本来应该在960mhz，我的结果却一直在600多，一直有这种warning无法解决。楼主能交流一下吗

louiszhu

子电路里的TERM为啥不X掉

达叔100

是不是因为没有加扼流电感和隔直电容啊？

阿飞7812

回复 1# lysummerrain
到处找不到这书的下载，能分享下吗

zhaoxiumao

单独的用可以，一起用不行，是不是冲突了？ 路过，打酱油。

kudzus

回复 11# 桃儿爷。
     好久没有看论坛了，我来回答下。     该警告提醒有些晶体管的引脚没有连接。而为了求解的方便性，将那个端口连接上一个极大的电阻，这样做的好处是方便建立整个电路的求解矩阵。仅此而已。实际上如果你自己的晶体管电路如果都连接正确，基本不用管这个警告。

ADS官方解释如下：

In the case of a circuit with a wire that is missing, a message such as the following can appear in the Simulation/Synthesis Messages window during a simulation:

Warning detected by HPEESOFSIM during DC analysis "DC1".
Circuit as given has no unique solution.
A virtual resistance of 1 TOhms was added to each node.

In the case of unconnected wires or pins, choose
Tools
>
Check Representation, then select
Open connections
and click
OK. All unconnected wires and components are highlighted, making them easily visible on the screen. Connect these to the correct circuit node.