| 摘要 |
An apparatus comprising two waveguides 130, 140 adapted to be stacked at least partially upon each other, wherein an electrically conducting interconnector 160 is electrically connected to a conductor surface 135 of the first waveguide 130 receiving an electromagnetic signal and extends into the second waveguide 140 propagating said electromagnetic signal. Said interconnector 160 is electrically isolated from all the other conductor surfaces of the waveguides 130, 140 and is adapted to guide the electromagnetic signal propagating from the first waveguide 130 into the second waveguide 140. This invention realises a transition or junction between two Substrate Integrated Waveguides (SIW) having different dimensions and different directions. In particular, it may be used to implement an antenna, comprising a radio circuit and electromagnetic lens, wherein a plurality of apparatuses extend between said radio circuit and said electromagnetic lens. Each radiating waveguide of the plurality of apparatuses is locally placed in a direction that is normal to the surface of the electromagnetic lens.
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