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Abstract

A waveguide power divider device comprises four two-port orthomode junctions arranged with their common waveguides extending in parallel, wherein the two ports of each orthomode junction extend in orthogonal directions, four E-plane T-junctions, each T-junction coupling two of the four orthomode junctions to each other via respective ones of their ports, a four-port turnstile junction, wherein waveguides of the four ports are bent to extend in parallel to an extension direction of a common waveguide of the turnstile junction, and four waveguide twists, each waveguide twist coupling a common waveguide of a respective one of the T-junctions to the waveguide of a respective one of the ports of the turnstile junction, with broad walls of the common waveguide of the T-junction and of the waveguide of the port of the turnstile junction being orthogonal to each other. An array antenna may include one or more such waveguide power divider devices.

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