Problem with thickness/sub height ratio error in Designer

[hitmo]

Designer

hi
i am designing a filter which is given in G.Matthaei text book. the filter is bsf desinged using stripline, height of sub 312mil and conductor thickness is 125 mils. whn i try to simulate it using designer it gives me a error sayin that thickness/sub height ratio should be less ≤ 0.25. is there a way around that.

 

[yesman]

Designer

Conductor Thickness is 125 mils? I think it is wrong.
Normally, Conductor thickness is 0.675mil or 1.35mil.

 

[hitmo]

Re: Designer

hi
the conductor thickness is 125 mil which is need to get high Q whn the sub thickness is high.

 

[sjm]

Re: Designer

Is this an etched board? Or is it something milled out of solid material then glued together? I assume the strip has a rectangular cross-section?

125mils is more like something you'd use for a busbar in a power supply than as a filter.