Problems with 180_degree hybrid model

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  • 29. November 2020 at 5:52 #672
    Jess_Stuart
    Participant

    The 180-deg hybrid coupler model included with Qucsstudio does not work correctly.  I’ve included a schematic and a diagram showing the 4 basic configurations in which 180-deg hybrids can be used (which can be verified against component datasheets).

    29. November 2020 at 5:55 #673
    Jess_Stuart
    Participant

    Upload was too big.  Scaled down the image and retried attaching zip file.

    Attachments:
    1. 180deg_hybrid.zip
    29. November 2020 at 17:17 #675
    QucsStudio
    Keymaster

    The 180-deg hybrid coupler works in frequency-domain only. So please use the AC or s-parameter analysis.

    A time-domain model for this component does not exist, because its Fourier transformation has a pole.

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