A dual-band direct-conversion RF front-end for WiMedia UWB receiver

Jouni Kaukovuori*, Jussi Ryynänen, Mikko Kaltiokallio, Kari Halonen

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    This paper describes a direct-conversion RF front-end designed for a dual-band WiMedia UWB receiver. The front-end operates in band group BG1 and BG3 frequencies. It includes multi-stage LNAs, down-conversion mixers, a polyphase filter for quadrature local oscillator (LO) signal generation, and LO buffers. The UWB receiver is targeted for a mobile handset, where several other radios can be simultaneously on. Therefore, special attention was paid on minimizing the interference from different wireless systems. The front-end achieves approximately 26-dB gain and 4.9-5.6-dB noise figure (NF) across three sub-bands of BG1. In BG3 mode it obtains 23-26-dB gain and 6.9-7.7-dB NF. The front-end consumes 48.1 and 42.7 mA from a 1.2-V supply voltage in BG1 and BG3 operation modes, respectively. The chip was implemented in a 0.13-μm CMOS.

    Original languageEnglish
    Pages (from-to)117-128
    Number of pages12
    JournalAnalog Integrated Circuits and Signal Processing
    Volume59
    Issue number2
    DOIs
    Publication statusPublished - May 2009
    MoE publication typeA1 Journal article-refereed

    Keywords

    • CMOS
    • Front-end
    • Interferers
    • Mobile applications
    • Radio frequency
    • UWB

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