Doctoral Dissertations


Hanfeng Wang

Keywords and Phrases

Partial element equivalent circuit (PEEC)


"In this dissertation, a new integral equation formulation for via structures is developed for the capacitance extraction between vias and planes. The proposed method can be used to calculate the shared-antipad via structure which is widely used in highspeed differential signal interconnects. In addition, we use the image theory to handle inhomogeneous media. Further, a new technique is given to reduce computational resources for via-to-plane structures based on properties of the matrix coefficient. The extracted capacitance is also incorporated into the physics-based circuit model to characterize the overall performance of the via transition. In the second paper, a rigorous modeling of the shared-antipad via structure is developed using surface partial element equivalent circuit (PEEC). The cavity Green's function is used to evaluate the equivalent circuit elements, thereby requiring fewer cells for numerical computation. The non-orthogonal, quadrilateral cell is used in the mesh to better accommodate the non-rectangular shape of the via and the antipad. A novel wave port excitation method is applied to the equivalent circuit to obtain the network parameters of the via transition. The Z-parameters of the via structure are calculated using the proposed method, and the results are validated with the finite element solution obtained from commercial software. In the third paper, an effective methodology is proposed to estimate the RF interference received by an antenna due to near-field coupling using divide-and-conquer based on reciprocity. The proposed methodology fits well with engineering practice, and is particularly suitable for pre-layout wireless system design and planning"--Abstract, page iv.


Fan, Jun, 1971-

Committee Member(s)

Beetner, Daryl G.
DuBroff, Richard E.
Ruehli, Albert E.
Pommerenke, David
Drewniak, James L.


Electrical and Computer Engineering

Degree Name

Ph. D. in Electrical Engineering


Missouri University of Science and Technology

Publication Date

Fall 2012

Journal article titles appearing in thesis/dissertation

  • Capacitance calculation for via structures using an integral equation method based on partial capacitance
  • Surface PEEC modeling for shard-antipad via structure using cavity Green's function and wave port excitation
  • Estimating radio-frequency interference to an antenna due to near-field coupling using divide-and-conquer method based on reciprocity


xiii, 110 pages

Note about bibliography

Includes bibliographical references.


© 2012 Hanfeng Wang, All rights reserved.

Document Type

Dissertation - Open Access

File Type




Subject Headings

Green's functions
Integrated circuits -- Design
Radio -- Interference

Thesis Number

T 10151

Print OCLC #


Electronic OCLC #