Home › Forums › Bug Reports › Filter Synthesis tool: coupled microstrip filter strange design › Reply To: Filter Synthesis tool: coupled microstrip filter strange design 29. November 2025 at 19:02 #9157 QucsStudioKeymaster Yes, you are right! That’s not as it should be. Thanks a lot for reporting it. It will be fixed in the coming release. It came from the lowpass filter design, but for bandpass filters it’s indeed unnecessary.
