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In this paper, an waveguide directional coupler with broad bandwidth, high directivity and high flatness using an efficient and rapid design procedure is proposed. This waveguide directional coupler achieve a weak coupling of − 20 dB by using one circular aperture at the broad wall sharing by the main waveguide and the branch waveguide. A metal insert in the coupling hole is the key of the design...
In this paper, an waveguide directional coupler with broad bandwidth, high directivity and high flatness using an efficient and rapid design procedure is proposed. This waveguide directional coupler achieve a weak coupling of − 20 dB by using one circular aperture at the broad wall sharing by the main waveguide and the branch waveguide. A metal insert in the coupling hole is the key of the design...
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