Linearity analysis and design optimisation for 0.18 mu m CMOS RF mixer

    Authors

    Q. Li;J. S. Yuan

    Comments

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    Abbreviated Journal Title

    IEE Proc.-Circuit Device Syst.

    Keywords

    Engineering, Electrical & Electronic

    Abstract

    Equations for the 1dB compression point and third-order intermodulation point as a function of circuit and technology parameters are derived using a Volterra series expansion. The linearity analysis for both single- and double-balanced CMOS Gilbert mixers is examined. The relation between the input third-order intercept point and source inductance is studied in depth. The gate to drain overlap capacitance, which is one of the dominant nonlinear elements in a MOSFET, is included in the model. The design methodology to satisfy the mixer noise figure and conversion gain while optimising linearity is summarized. The analytical predictions are verified with the Cadence SpectreRF circuit simulation and experimental data. Good agreement between the model predictions and experimental data is obtained.

    Journal Title

    Iee Proceedings-Circuits Devices and Systems

    Volume

    149

    Issue/Number

    2

    Publication Date

    1-1-2002

    Document Type

    Article

    Language

    English

    First Page

    112

    Last Page

    118

    WOS Identifier

    WOS:000177099200004

    ISSN

    1350-2409

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