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Broadband transition between rectangular waveguide and substrate integrated waveguide

Broadband transition between rectangular waveguide and substrate integrated waveguide

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A novel broadband waveguide-to-substrate integrated waveguide transition is presented. The transition is realised by using a fin line probe inserted into a rectangular metal waveguide. A single back-to-back transition covering the KA band is designed, fabricated and tested. Measured results show that good agreement with simulation, an insertion loss less than 1.4 dB and a return loss better than 15 dB at 25–40 GHz are obtained for a back-to-back structure. This broadband transition between the rectangular waveguide and substrate integrated waveguide can be used widely in microwave and millimetre-wave circuits and systems.

References

    1. 1)
      • N. Marcuvitz . (1965) Waveguide handbook.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el.2010.2518
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