HFSS仿真中报错Failed to solve the problem due to lack of precision.

    [error] Discrete solution setup, process abc3d : Failed to solve the problem due to lack of precision.  The likely cause is that the frequency is too low. (9:55 下午  二月 07, 2009)
    [error] Simulation completed with execution error on server: Local Machine. (9:55 下午  二月 07, 2009)
望高手不吝赐教！·

你的附近我下载了，但里面没有模型，具体情况不清楚，但根据我的个人经验，可能是你设置的计算频率太低了，如果你选用
1Mhz时，就会出现这种错误，建议LZ将频率设置大点

我把频率设置为1GHz时，仍然会报相同的错。
另外请问，HFSS的仿真频率范围为多少呀?

你的模型是什么啊?hfss针对的是高频仿真，低频仿真一般用ADS，你将频率设置为10G试一下吧

我当初也遇到过，不知道什么问题呀！

This problem must be arising due to restricted frequency range. Entering
the start and stop frequencies, while adding a sweep to a solution setup,
a frequency range is being defined. If HFSS detects that there are modes
out of this range, it gives a "lack of precision" error and states that this
frequency range is narrow.
Widening this range handles the problem. One more track to handle is
selecting the type of sweep as "interpolating". It estimates a solution for
an entire frequency range.
For further info, you can search for "Selecting the Sweep Type" in Help
of HFSS.

5楼能够说的明白一些，不太懂呀！
是说我设置的频率范围太窄吗?可是我在setup中设的是1GHz，扫频范围为100M到1GHz。

你的频率的步长设置的是多少?

100M到1G步长25M

可能是起始频率太低了，你的模型是什么，用附件传上去吧

我出现的错误是：Port refinement, process hf3d error: Failed to solve the problem due to lack of precision. The likely cause is that the frequency is too low. (12:16 上午  四月 21, 2009)
请大家帮忙看看是什么原因?

这个问题跟LZ的是一样的。

我仿的是方——脊波导不连续性，方波导设置积分线后没有选中 polarizer E，所以老报这个错误，后来选中后，一切正常。