Type of Document	Master's Thesis
Author	Lu, Shu
URN	etd-04142009-040614
Title	Design, fabrication, and characterization of a wideband microwave balun
Degree	Master of Science
Department	Electrical Engineering
Advisory Committee	Advisor Name Title Elshabini-Riad, Aicha A. Committee Co-Chair Riad, Sedki Mohamed Committee Co-Chair Stutzman, Warren L. Committee Member
Keywords	Microwave devices
Date of Defense	1990-04-05
Availability	restricted
Abstract A wideband microwave balun is designed to adapt unbalanced to balanced transmission line networks. The balun is realized by a planar microstrip line configuration on a double copper c1added teflon-ceramic C0I11posite board. The microstrip line conductor pattern was formed on the board using the chemical etching process. The fabricated balun is measured and evaluated in both the time domain and frequency domain, indicating a 5 GHz bandwidth. The time domain modeling technique is used to characterize the balun's performance. Based on physical analysis of the balun's configuration, the discontinuities through the transmission paths are modeled as distributed and lumped elements, resulting in an equivalent network model for the balun structure. The obtained model successfully simulates the balun's performance.
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