Full-wave modeling and optimization of Boifot junction ortho-mode transducers

TitleFull-wave modeling and optimization of Boifot junction ortho-mode transducers
Publication TypeJournal Article
Year of Publication2008
AuthorsRuiz-Cruz, J. A., J. R. Montejo-Garai, and J. M. Rebollar
JournalInternational Journal of RF and Microwave Computer-Aided Engineering
Date PublishedJuly
KeywordsBoifot ortho-mode transducer, full-wave optimization, generalized admittance matrix, mode-matching
AbstractThe full-wave design of broadband ortho-mode transducers based on the Boifot junction has two main aspects: an efficient analysis method and a design process divided into tasks with relatively low computational effort. In the analysis part, a rigorous mode-matching technique has been developed to obtain the generalized admittance matrix of the Boifot junction. The other elements of the device are also analyzed by mode-matching. With respect to the design, the proposed procedure starts with the optimization of the individual building blocks of the device. Their interaction is also taken into account in a systematic process. The analysis and design methods have been validated with other numerical methods and an experimental prototype