AUTOMATIC MICROWAVE CIRCUIT ANALYSIS WITH GCP-MOD2
Abstract:
GCP-MOD2 is an extremely rapid means for performing frequency analyses of equivalent circuits of cascaded two-ports. An operator describes his circuit to GCP-MOD2, using an abbreviated plain English vocabulary, and specifies measurements to be made at an appropriate terminal plane for frequencies of interest. GCP communicates laconically with the operator as it accepts the circuit description and any other instructions. It then tabulates the results of the measurements, and awaits further instructions, such as circuit modifications or different measurements. As a typical example, a microwave filter circuit, made up of lengths of transmission line and five resonators, of both lumped and distributed elements, can be described to GCP and evaluated at a dozen frequencies for such measurements as insertion loss, transmission phase-shift, and input impedance, all in about 10 minutes.