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Printed circuit rat-race-type directional couplers for larger power-split ratio

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Abstract

Two different types of 5/2-wavelength rat-race-type directional couplers with a remarkably increased power-split ratio for a realizable ring-impedance, in particular which are useful for millimeter-wave circuits suffering from the severe restriction on the usable impedance range, are described. Experimental corroboration is provided in the microwave region (at 8 GHz).

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References

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Authors and Affiliations

  1. Faculty of Engineering, Himeji Institute of Technology, 2167 Shosha, 671-22, Himeji-shi, Japan

    Isao Ohta, Ichiro Hagino & Takenori Kaneko

Authors
  1. Isao Ohta
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  2. Ichiro Hagino
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  3. Takenori Kaneko
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Ohta, I., Hagino, I. & Kaneko, T. Printed circuit rat-race-type directional couplers for larger power-split ratio. Int J Infrared Milli Waves 10, 729–735 (1989). https://doi.org/10.1007/BF01009571

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  • DOI: https://doi.org/10.1007/BF01009571

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