Qucs Studio support
dom11990 opened this issue · comments
I've been using Qucs Studio over classic Qucs lately because it has a number of features that make it a viable replacement for top dollar software (in certain use cases such as mine). It would great if we had full support for their schematic type or at least a description of what doesn't work so we can look out for it.
QucsStudio is mostly compatible with Qucs, microstrip components are supported for both, CPW aren't for any and QucsStudio's striplines neither.
The principal limitation is that QucsStudio does not have a CLI to export a netlist from a schematic, so to convert a QucsStudio schematic you still needs Qucs to be installed.
I've been posting a number of questions to the QS guys. I will add this as a feature request and perhaps they will include it in the future.
Is this netlist sufficient for what you need?
http://qucsstudio.xobor.de/t74f4-Exporting-a-netlist-via-CLI.html#msg222
Looks something like this:
# QucsStudio 2.5.7 C:/Users/Dominik/.qucs/taps_project_prj/harm.sch
SPfile:X2 gnd _net0 "LTC5564_-10dBm.S1P" "polar" "cubic" "short" "no" "1"
Eqn:Eqn1 "mlin_w=0.441mm" "yes"
.SP:SP1 "lin" "0.1 GHz" "16 GHz" "2000" "no" "1" "2" "none"
SUBST:Subst1 "4.5" "0.254 mm" "35 µm" "0.03" "1.72e-8" "0.15 µm"
MLIN:MS1 _net1 _net2 "Subst1" "0.00397064" "0.00307842" "Hammerstad" "Kirschning" "26.85"
MLIN:MS4 gnd _net2 "Subst1" "0.00194699" "0.00812157" "Hammerstad" "Kirschning" "26.85"
MLIN:MS3 gnd _net1 "Subst1" "0.000579273" "0.00519903" "Hammerstad" "Kirschning" "26.85"
Pac:P1 _net1 gnd "1" "50 Ohm" "0 dBm" "1 GHz" "26.85"
MLIN:MS2 _net2 _net0 "Subst1" "0.000782836" "0.00647354" "Hammerstad" "Kirschning" "26.85"
Eqn:Eqn3 "s11=max(range(dB(S[1,1]),3.0e9,5.0e9)+15" "s11_close=max(range(dB(S[1,1]),3.75e9,4.25e9)+20" "yes"
Yes it is the same format. Not satisfied with the manual procedure they gave you, however I could add an entry to specify a netlist instead of automatically call Qucs to create it.
Yeah the manual aspect is a bit tedious, but a think a field where you can drop the netlist directly would make sense. It is certainly a feature I would use!
Here it is in text mode! The GUI will be reworked later :)