Transmission Line Impedance Matching in High Frequency Circuits
Impedance matching reduces the amount of power reflected back by a mismatched load of a transmission line. For complete transfer of a signal to a load, all impedances should be matched. The purpose of this research was to study the different approaches available to perform impedance matching and obtain a set of guidelines that would assist the practitioner in choosing the best method for a specific situation. From the knowledge on transmission line parameters like the characteristic impedance, one can calculate the corresponding reflection coefficient which is related to the amount of power reflected. The goal of impedance matching is to minimize the reflection at a certain frequency of operation or for a specific frequency bandwidth. The present work has examined the matching approach for a specific frequency (narrow band design). The comparison between different methods dealt with electrical performance (i.e. bandwidth associated with a given design), physical actualization, and cost issues, in order to develop choice criteria.
School:
North Carolina A&T State University
Department:
Electrical Engineering
Research Advisor:
Umberto Ravaioli
Department of Research Advisor:
Electrical and Computer Engineering
Year of Publication:
2004