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DESIGN OF TEM MODE AND TE MODE FILTERS USING 2-D AND 3-D FIELD SIMULATORS

Date

2000-05

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Degree Level

Masters

Abstract

Due to the explosive growth in modem wireless communication technology and satellite communication systems, the demand for research in microwave filter engineering has increased dramatically in the recent past. Traditionally, microwave filters were designed empirically using approximate models and needed significant post-production tuning. Over the last two decades, a number of numerical methods have been generated for microwave applications. This thesis presents the generalized filter design method of Levy & Rhodes that is based on two dimensional and three dimensional electromagnetic analysis and discontinuity modeling using commercially available full-wave electromagnetic simulators. It shows how to design waveguide filters accurately, using modem electromagnetic field solvers based on the Finite Element Method, the Finite Difference Method and the Transmission Line Matrix analysis method. This is the first time that some design curves and equations are presented for ceramic block slab-line filters and post and iris coupled waveguide filters. This thesis also demonstrates the generality of the method. It can be applied to many other types of microwave lowpass and bandpass filters.

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Degree

Master of Science (M.Sc.)

Department

Electrical and Computer Engineering

Program

Electrical Engineering

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