IQ / 90-degree signal splitter

Discussion in 'Wireless & RF Design' started by mfsd, Feb 16, 2012.

  1. mfsd

    Thread Starter New Member

    Jul 16, 2011

    I need to design a phase shifter, 1-degree accuracy for an RF signal between 100MHz and 500MHz, sine wave.

    My current and theoretical approach is to use an IQ/90-degree signal splitter, and then feed this pair of signals into two vector multipliers (e.g.ADL5390), and here control the vector-resultant with IBB/QBB.

    The problem I have is the design the IQ splitter that is good enough in the whole frequency range.

    1. Any ideas for the 90-degree signal splitter? IC?
    2. Any another approach for the phase shifting?

    Best regards,