Per-unit-length RLGC extraction using a lumped port de-embedding method for application on periodically loaded transmission lines

As the speed of signal bus increases, an accurate and efficient modeling of periodically loaded transmission lines is becoming more critical for the simulation of high-speed signaling. The modeling of periodically loaded transmission lines requires full-wave electromagnetic tools due to the 3-dimensional nature of the structures. This paper describes a unique and efficient method to extract per-unit-length RLGC for the periodically loaded transmission lines from S-parameters using a lumped port de-embedding technique, which is suitable for commercial electromagnetic simulation tools and overcomes the drawbacks of the other known solutions. The per-unit-length RLGC parameters extracted by the method presented are compared with those by a method referenced, verifying the validity of the method. It is also demonstrated that the method can be applied to a realistic structure to extract frequency-dependent RLGC parameters over a wide frequency range.