Masters Theses


Kaustav Ghosh

Keywords and Phrases

Array antenna; EMC; EMI; EMI scaling; Radiated emission


"The large multiscale problems are commonly faced in real-world applications such as analysis of electromagnetic interference for a printed circuit board installed on a large platform with connected cables, wires and other high speed interfaces. EMI problems are not uncommon in high speed systems which involve multiple modules of complex hardware. As the system clock frequency and data rate increases, so does the challenges in controlling the EMI in such systems. The costs to prototype and to develop networking equipment are growing as a result of increasing complexities and densities. EMC regulations require radiated emission testing to be done in a worst-case condition that typically requires a fully loaded system. Typical networking equipment holds tens of nearly identical line cards and hundreds of optical modules within them. Thus, if a path to study the growth of electromagnetic (EM) radiation from these systems using less hardware is adopted, development costs can be significantly reduced. Due to the complexity of the system, prediction of the maximum radiated field strength cannot be exact. However, an estimation of emission growth with number of radiators is possible through statistical analysis. This thesis presents a methodology and the considerations (frequency/phase behavior, radiation pattern, directivity, and their possible variations) to account for approximating the maximal E-field. This allows us to predict the growth pattern of emission as modules are added into a system, and the input parameters for the statistical simulation. The method developed in this study can be used for any multi-modular systems provided all the key parameters are taken into consideration correctly"--Abstract, page iii.


Pommerenke, David

Committee Member(s)

Khilkevich, Victor
Fan, Jun, 1971-


Electrical and Computer Engineering

Degree Name

M.S. in Electrical Engineering


Missouri University of Science and Technology

Publication Date

Fall 2018


x, 60 pages

Note about bibliography

Includes bibliographical references (pages 58-59).


© 2018 Kaustav Ghosh, All rights reserved.

Document Type

Thesis - Open Access

File Type




Thesis Number

T 11417

Electronic OCLC #