MTEE (Microstrip T-Junction) and ADS

[dpa2007]

greetings,
is it possible to use linecalc with MTEE (Microstrip T-Junction)?
or only with MSUB (Microstrip Substrate)?

 

[volker_muehlhaus]

linecalc can synthese/analyze straight (homogeneous) line segments only.
What are you trying to do?

 

[dpa2007]

thank you for your reply.
i am using MTEE in a schematic and during simulation i am getting warnings messages about MTEE components.
i believe that the warnings occured due to the frequenchy of the substrate.

 

[volker_muehlhaus]

i am using MTEE in a schematic and during simulation i am getting warnings messages about MTEE components.

What does the warning say?

 

[dpa2007]

I'm getting the following warnings during simulation.solver uses Krylov method to find a solution

.Warning detected by hpeesofsim during AC Analysis 'HB2'.
In component `X5.Tee3': (freq*H) > 0.4*Z_LOWEST (GHz*mm)
Warning detected by hpeesofsim during AC Analysis 'HB2'.
In component `X5.Tee4': (freq*H) > 0.4*Z_LOWEST (GHz*mm)
Warning detected by hpeesofsim during AC Analysis 'HB2'.
In component `X5.Tee2': (freq*H) > 0.4*Z_LOWEST (GHz*mm)
Warning detected by hpeesofsim during AC Analysis 'HB2'.
In component `X5.Tee1': (freq*H) > 0.4*Z_LOWEST (GHz*mm)
Warning detected by hpeesofsim during AC Analysis 'HB2'.
In component `X5.Tee5': (freq*H) > 0.4*Z_LOWEST (GHz*mm)
Warning detected by hpeesofsim during AC Analysis 'HB2'.
In component `X4.Tee3': (freq*H) > 0.4*Z_LOWEST (GHz*mm)
Warning detected by hpeesofsim during AC Analysis 'HB2'.
In component `X4.Tee4': (freq*H) > 0.4*Z_LOWEST (GHz*mm)
Warning detected by hpeesofsim during AC Analysis 'HB2'.
In component `X4.Tee2': (freq*H) > 0.4*Z_LOWEST (GHz*mm)

from my schematic i realize that these warnings comes from all the MTEE parts that i have used in all of my sub circuits that contains MTEE.
similar warnings with MLIN solved with the use of linecalc.
so i tried to change the frequency (FreqForEpsrTanD) of MSub but with no luck.
i need to change frequency to justify the above relationship between Freq,H and Z_Lowest.

 

[volker_muehlhaus]

Maybe you have some dimension error in your MTEE/MLIN or in the MSUB block (meter instead of mm or so) ?
Or some error with the frequency unit?