Strange results from HFSS simulation on slow wave CPW

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wizardz

Joined: 05 Aug 2006
Posts: 51

04 Jul 2008 13:47 hfss slow wave simulation

I read this paper on a novel slow wave CPW structure.
The author utilizes floating metal slots underneath the CPW to increase the effective capacitance unit length.

However, I get strange results from HFSS simuation. From the simulation, the effective capacitance does not change dramatically as is mentioned in papers. But field view indicates that the E field distribution obviously changed due to metal slots. Where is problem with my simulation setup?

I also wonder how to apply wave ports. Do I need to add a perfect wave guide? I found simulation fails when wave port touches metal slot underneath.

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elainema

Joined: 15 Oct 2009
Posts: 2

15 Oct 2009 3:17 Strange results from HFSS simulation on slow wave CPW

Hi,

I face same problem, even worse, I tried periodic floating metal structures, it shows no slowwave effect also which most possibly is not correct.

Anybody help pls!