Quasi-static parameters, low-frequency solutions, and full-wave solutions of a single-layered via

Autor: Leung Tsang, Qin Li, Houfei Chen
Rok vydání: 2002
Předmět:
Zdroj: Microwave and Optical Technology Letters. 35:34-40
ISSN: 1098-2760
0895-2477
DOI: 10.1002/mop.10508
Popis: The problem of a single-layered via through two parallel ground planes is studied. The problem is decomposed into the exterior problem and the interior problem. For each problem, the quasi-static solution, the full-wave solution, and the low-frequency solution are studied. The exterior solutions and the interior solutions are then combined to give the overall characteristics. Different combinations can be made. In solving the interior part with the quasi-static approach, the aperture of the via hole is replaced by the equivalent source. The Green's function between two PEC planes is used to form the surface integral equation, and the MoM is used to extract the capacitance. The extracted quasi-static results are compared with those from the low-frequency and full-wave solutions. It is shown that the capacitance from the full-wave approach is very weakly frequency dependent and compares well with that from the quasi-static approach at the frequency range of interest. The inductance of the interior part is found to be infinity with the magneto-static approach. Thus the quasi-static solution cannot be used for the interior problem to find the inductance. On the other hand, the inductance based on the full-wave solution is strongly frequency dependent. It is also shown in this article that the combination of the quasi-static solution for the exterior problem and the full wave for the interior problem gives good performance in terms of both accuracy and CPU requirements. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 35: 34–40, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10508
Databáze: OpenAIRE
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