• UnknownEditor
    2
    Just wondering what kind of trouble could lie ahead when combining MMIC power amplifiers with external baluns. A low-loss balun has poor isolation... could this cause an oscillation? would it be a transient thing on startup and then die down or could it oscillate all the time? Does it matter that the amplifiers are already unconditionally stable? Asking for a friend...

    If isolation doesn't matter in this case, why does it matter when you combine amplifiers in-phase or in quadrature?

    Steve
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