• Franklin1
    2
    I've been tasked with creating a 4-way coupler that has equal power in 4 ports.
    There are other specifications but my first question comes from if I should use a rat-race, branchline, or some sort of hybrid model.
  • SM4RZW
    15
    Franklin, we need those other specifications to be able to recommend a model.
    frequency band, acceptable loss in each path, acceptable isolation between output ports, power handling.
  • UnknownEditor
    53
    Bandwidth is probably the most important question as some approaches are only good for narrow band.
    Also, you should consider if the outputs need to have the same transmission phase...

    Steve
  • Franklin1
    2
    Thank you for responding and sorry for the lack of details,

    The center frequency must be 1.575GHz, Insertion Loss <5dB, Isolation >20.0dB, Phase Balance at the output <5 degrees, VSWR over passband <1.5 : 1, amplitude Balance at output <1dB.

    Since I last posted I have thought about doing a 4 output wilkinson power divider. I would love to know your thoughts
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