Title :
Multistandard carrier generation system for quad-band GSM/WCDMA (FDD-TDD)/WLAN (802.11 a-b-g) radio
Author :
Koukab, Adil ; Lei, Yu ; Declercq, Michel
Author_Institution :
Ecole Polytechnique Federale de Lausanne, Switzerland
Abstract :
A compact carrier generation system enabling proper interoperability among quad-band GSM, WCDMA (FDD and TDD) and WLAN (802.11a/b/g) standard is developed. The implementation is achieved in 0.25μm BiCMOS-SiGe process. The measured tuning range is higher than 1GHz (3.05GHz to 4.1 GHz) exceeding by 25% the specifications. The VCO exhibits a phase noise of -118 and -125 dBc/Hz measured respectively at 400KHz and 1MHz offsets while drawing only 2.5 mA from 2.5 V supply. The measured phase noise at 400 KHz offset from the PCS 1900/DCS1800 and the GSM850/900 carriers are respectively -124 dBc/Hz and -130dBc/Hz.
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; IEEE standards; cellular radio; code division multiple access; frequency synthesizers; integrated circuit layout; network topology; phase noise; semiconductor materials; voltage-controlled oscillators; wireless LAN; 0.25 micron; 2.5 V; 2.5 mA; 3.05 to 4.1 GHz; BiCMOS process; FDD-TDD standard; SiGe; WLAN 802.11 a-b-g standard; multistandard carrier generation; phase noise; quad band GSM standard; quad band WCDMA standard; quad-band radio; voltage controlled oscillators; Frequency; GSM; Multiaccess communication; Phase noise; Standards development; Synthesizers; Telephone sets; Transceivers; Voltage-controlled oscillators; Wireless LAN;
Conference_Titel :
Solid-State Circuits Conference, 2005. ESSCIRC 2005. Proceedings of the 31st European
Print_ISBN :
0-7803-9205-1
DOI :
10.1109/ESSCIR.2005.1541588
