Title :
Influence of eccentricity on the frequency limitations of circular-pad via-holes
Author :
Kouzaev, G.A. ; Deen, M.J. ; Nikolova, N.K. ; Rahal, A.H.
Author_Institution :
McMaster Univ., Hamilton, Ont., Canada
fDate :
6/1/2004 12:00:00 AM
Abstract :
We study the influence of the technologically caused eccentricity of a circular-pad via-hole. We derive an eigenvalue equation using a rigorous method based on a linear transformation of the via-hole polar coordinates. The eigenvalue equation is used to compute the modal resonant frequencies and the modal fields of the eccentric via. It is shown that the via-hole misalignment shifts the modal frequencies and influences its frequency band. The proposed model is verified with published experimental data, and is also compared with results generated with the full-wave simulator Agilent Momentum-2002.
Keywords :
circuit resonance; circuit simulation; eigenvalues and eigenfunctions; integrated circuit modelling; integrated circuit packaging; Agilent Momentum-2002; circular-pad via-holes; eccentric via; eigenvalue equation; frequency band; frequency limitations; full-wave simulator; linear transformation; modal fields; modal resonant frequencies; passive components; rigorous method; via-hole misalignment; via-hole polar coordinates; Circuit simulation; Computational modeling; Eigenvalues and eigenfunctions; Equations; Frequency estimation; Grounding; Helium; Magnetic resonance; Resonant frequency; Ultra wideband technology; Modeling; passive components; via-holes;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2004.828015
