A short-open deembedding technique for method-of-moments-based electromagnetic analyses

A short-open calibration (SOC) technique for deembedding structures with an arbitrary, possibly coupled, number of ports is introduced in this paper. While deembedding algorithms used in commercial software packages require t he analysis of two "standard" structures for each set of ports, the propose d solution requires only one standard to be analyzed, with a significant re duction in the overall computation time, Moreover, unlike other deembedding techniques, the SOC technique does not rely on specific assumptions about the nature of the port discontinuities and of the feeding lines. This fact circumvents ambiguities linked to the definition of the characteristic impe dance when hybrid modes are involved. Implementation-ready formulas are pro vided.