Continuously tapered dielectric matching transitions for waveguides
"Dielectric matching transitions at microwave frequencies are used for matching air filled waveguides into dielectric filled waveguides for maser work or into dielectric rod antennas. Also dielectric loading has been shown to improve the performance of the ferrite isolators. The dielectric matching transitions that have been analyzed in the literature are of the stepped type. The continuously tapered dielectric matching transitions investigated in this dissertation provide increased bandwidth with very little increase of physical complexity. The dissertation provides an analytical method for analysis and design for the continuously tapered dielectric matching transition. First-order and second-order approximate solutions for both symmetrical cross section and unsymmetrical cross section linearly tapered matching transitions are given. In addition other continuous tapers which promise lower reflection coefficients than the linear tapers are analyzed using the first-order approximation"--Abstract, page iii.
Missouri University of Science and Technology
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