A dual-band direct-conversion RF front-end for WiMedia UWB receiver
Research output: Contribution to journal › Article
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.
|Number of pages||12|
|Journal||Analog Integrated Circuits and Signal Processing|
|Publication status||Published - May 2009|
|MoE publication type||A1 Journal article-refereed|
- CMOS, Front-end, Interferers, Mobile applications, Radio frequency, UWB