Equivalent circuit models for linear reciprocal lossy distributed microwave two-ports

Summary form only given, as follows. The modeling of passive microwave structures by equivalent circuit models is an efficient technique which allows to include distributed problems into complex modeling environments at a system level. The number of circuit elements can be reduced significantly if also delay lines are included in addition to capacitors, inductors, resistors, and ideal transformers. We discuss a systematic procedure for the generation of combined lumped element and delay line equivalent circuit models.