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Slots on Cylindrical Substrate Integrated Waveguide

Longitudinal slots and coupling between slots placed on the broad wall of a cylindrical substrate integrated waveguide (SIW) are modeled and characterized in order to design a slotted cylindrical SIW array. Characteristics of slot on the SIW bended on a cylindrical surface and effects of radius of curvature to the slot and mutual coupling characteristics are investigated at K band using FEM simulator.