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Accurate, efficient and general computational techniques are developed to evaluate the scattering parameters of passive microstrip components composed of discontinuities in microstrip transmission lines on general two layer substrates with single and two level metallization. An open domain model is used. The Electric Field Integral Equation is examined and the Green's function for single and double layer dielectric substrates on a infinite ground plane are reviewed while emphasizing the important computational details to the model, including singularity of the kernel, evaluation of the Sommerfeld Integrals, and interpolation of the Green's functions. In order to model accurately complex circuit geometries, two dimensional currents are used. Different basis functions for expansion and for testing are chosen in order to make the computation more efficient and allow for structures having general shape in the moment method formulation. A transmission line current source is used to model the parameters are flowing in and circuit evaluated out of structure. Structures excitation and the scattering by calculating the currents each of the N-ports of the such as microstrip bends, microstrip crossovers of arbitrary angle, and coupled microstrip discontinuities are analyzed. To validate the model, results of some elementary structures are compared with published results of other models. / Graduation date: 1992

Thesis (M.App.Sc.) - Carleton University, 2002. / Includes bibliographical references (p. 143-145). Also available in electronic format on the Internet.

Thesis (M. App. Sc.)--Carleton University, 2003. / Includes bibliographical references (p. 99-102). Also available in electronic format on the Internet.

Thesis (M. App. Sc.)--Carleton University, 2004. / Includes bibliographical references (p. 84-93). Also available in electronic format on the Internet.

Thesis (M.S.E.C.E.)--University of Massachusetts Amherst, 2008. / Includes bibliographical references (p. 117-119).

Thesis (M.S.)--California Polytechnic State University, 2008. / Major professor: Dennis Derickson, Ph.D. "Presented to the faculty of California Polytechnic State University, San Luis Obispo." "In partial fulfillment of the requirements for the degree [of] Master of Science in Electrical Engineering." "May 2008." Includes bibliographical references (leaves 147-149). Also available on microfiche (3 sheets).

Thesis (Ph. D.)--Northeastern University, 2008. / Title from title page (viewed May 26, 2009). Graduate School of Engineering, Dept. of Electrical and Computer Engineering. Includes bibliographical references.

Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2005. / Includes bibliographical references. Also available in electronic version.

Miniature Hybrid Microwave Integrated Circuits (MHMIC's) in conjunction with Monolithic MIC's (MMIC's) play an important role in modern telecommunication systems. Accurate, fast and reliable analysis tools are crucial to the design of MMIC's and MHMIC's. The space-spectral domain approach (SSDA) is such a numerically efficient method, which combines the advantage of the one-dimensional method of lines (MoL) with that of the one-dimensional spectral-domain method (SDM). In this dissertation, the basic idea of the SSDA is first introduced systematically. Then, a quasi-static deterministic variation of the SSDA is developed to analyze and design low dispersive 3-D MMIC's and MHMIC's. S-parameters and equivalent circuit elements for discontinuities are investigated. This includes air bridges, smooth transitions, open ends, step in width and gaps in coplanar waveguide (CPW) or microstrip type circuits. Experimental work is done to verify the simulation. The full-wave SSDA is a more generalized and field theoretically exact numerical tool to model also dispersive circuits. The new concept of self-consistent hybrid boundary conditions to replace the modal source concept in the feed line is used here. In parallel, a deterministic approach is developed. Scattering parameters for some multilayered planar discontinuities including dispersion effect are calculated to validate this method. / Graduate