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EM Simulation for passive LPF

Question asked by RLINDL on Sep 11, 2008
Latest reply on Sep 11, 2008 by NWHITE
Gents, Please bear with me as I'm fairly new!

I'm trying to do an EM sim for a 5 pole LPF. The results of the Linear sim weren't all that accurate (rolling of to soon on the PCB). The filter is an S-Band filter used to supress a harmonic around 7GHz. The values I came up with are very low ex. 1nH, 1pF. I ended up playing with the Linear sim and empirically coming up with values that worked.

I'm trying to get the EM sim to generate an accurate filter using specs of my actual PCB material (RO4350B, .01" thick), so I'll have an easier time of it in the future. Any help would be greatly appreciated. I'm trying to attach my file, but looks like there is a web bug!  

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