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  1. #1
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    Best Transceiver architecture choice for Wimax 700.

    We are developing a Wimax 700 UHF Transceiver with single 5MHZ channel, we'd studied several papers comparing architectures and reached the conclusion that currently the two most appropriate architecture would be Zero-IF and Low-IF for having best integrability and possess few blocks.

    We understand that currently the ZIF one architecture is the better choice for low price solution, but we do not know how much the problems of dc offset / flicker may affect the project, or how challenges their are.

    Moreover, the Low-IF proves easier to implement but it needs future conversion and have image problem.

    question: What the best choice for our situation and why?


    ps:
    - we want to develop this transceiver in CMOS
    - our focus is only the development of the analog/rf part of trasnceiver.

    Thanks

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  2. #2
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    Re: Best Transceiver architecture choice for Wimax 700.

    Hello,
    This is a good question, and a good choice of this architecture is critical to the success of your project. As you said zero IF architecture has fewer components but has complex problems such as OFF-SET, and ficker noise. If you choose the Low-IF architecture with an IF frequency of very low near the base band is a good alternative, the image rejection can be treated digitally



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