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1887

X-band right-angle coaxial-to-single ridge waveguide compact transition with capacitive coupling

X-band right-angle coaxial-to-single ridge waveguide compact transition with capacitive coupling

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A novel right-angle coaxial-to-single ridge waveguide transition with capacitive coupling is presented at X band. Contrarily to the state of the art, the coaxial inner conductor is not in DC contact with the ridge, and such a feature can be a considerable mechanical advantage in the manufacturing of high-performance systems. In addition to this, few geometrical parameters need to be optimised, thus simplifying the overall design with respect to traditional counterparts. Nevertheless, the whole X band can be potentially covered with a return loss better than 20 dB. An ultra-compact transition is designed, manufactured with stereolithography technology and tested in a back-to-back configuration. Good agreement between simulated and measured results is observed for a proof-of-concept prototype.

http://iet.metastore.ingenta.com/content/journals/10.1049/el.2018.7088
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