Title :
A Dual-Band Direct-Conversion RF Front-End for WiMedia UWB Receiver
Author :
Kaukovuori, Jouni ; Ryynänen, Jussi ; Halonen, Kari A I
Author_Institution :
Helsinki Univ. of Technol., Helsinki
Abstract :
This paper describes a direct-conversion RF front-end designed for dual-band WiMedia UWB receiver. The front-end operates in band groups BG1 and BG3. It includes multi-stage LNAs, down-conversion mixers, a polyphase filter for quadrature local oscillator (LO) signal generation, and LO buffers. As targeted for mobile handset, several issues related to hostile environment are taken into account in this design. The front-end achieves approximately 26-dB gain and 4.9 to 5.6-dB noise figure (NF) across three subbands of BG1. In BG3 mode it obtains 23 - 26-dB gain and 6.9 to 7.7-dB NF. The front-end consumes 48.1 mA 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-mum CMOS.
Keywords :
CMOS integrated circuits; low noise amplifiers; microwave amplifiers; microwave integrated circuits; microwave mixers; microwave oscillators; microwave receivers; ultra wideband communication; CMOS chip; WiMedia UWB receiver; current 42.7 mA; current 48.1 mA; down-conversion mixers; dual-band direct-conversion RF front-end; gain 23 dB to 26 dB; mobile handset; multistage LNA; noise figure 4.9 dB to 5.6 dB; noise figure 6.9 dB to 7.7 dB; polyphase filter; quadrature local oscillator signal generation; size 0.13 mum; voltage 1.2 V; Broadband amplifiers; Circuits; Dual band; Local oscillators; Mobile handsets; Noise measurement; Radio frequency; Resonator filters; Signal generators; Wireless LAN; CMOS; RF circuits; UWB; interferers;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0530-0
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2007.380867
