Title :
A cost-efficient 0.18 μm CMOS RF transceiver using a fractional-N synthesizer for 802.11b/g wireless LAN applications
Author :
Haralabidis, N. ; Vavelidis, K. ; Vassiliou, I. ; Georgantas, T. ; Yamanaka, A. ; Kavadias, S. ; Kamoulakos, G. ; Kapnistis, C. ; Kokolakis, Y. ; Kyranas, A. ; Merakos, P. ; Bouras, I. ; Bouras, S. ; Plevridis, S.
Author_Institution :
Athena Semicond. S.A., Alimos, Greece
Abstract :
A single-chip 2.4 GHz, zero-IF transceiver for IEEE 802.11 b/g WLAN systems is fabricated on a 0.18 μm CMOS technology. Based on an innovative system architecture using digital calibration, analog circuit imperfections are eliminated. The transceiver features enhanced phase noise performance with the use of a fractional-N synthesizer. A switched configuration allows for the same filters to be used on both TX/RX paths, thus minimizing area. It features a NF of 3.5 dB while the sensitivity is -78 dBm at 54 Mb/s operation, referred at the input of the chip. The transmit output 1 dB compression point is 9 dBm. Digital calibration helps achieve an EVM of -31 dB while transmitting -4 dBm at 54 Mb/s.
Keywords :
CMOS integrated circuits; UHF filters; UHF integrated circuits; calibration; frequency synthesizers; integrated circuit design; integrated circuit measurement; integrated circuit noise; phase noise; transceivers; wireless LAN; 0.18 micron; 2.4 GHz; 3.5 dB; 54 Mbit/s; CMOS technology; IEEE 802.11b/g wireless LAN applications; RX path filters; TX path filters; WLAN systems; analog circuit imperfections elimination; cost-efficient CMOS RF transceiver; digital calibration; fractional-N synthesizer; phase noise performance; sensitivity; single-chip zero-IF transceiver; switched configuration; system architecture; transmit output compression point; Analog circuits; CMOS technology; Calibration; Filters; Noise measurement; Phase noise; Radio frequency; Synthesizers; Transceivers; Wireless LAN;
Conference_Titel :
Custom Integrated Circuits Conference, 2004. Proceedings of the IEEE 2004
Print_ISBN :
0-7803-8495-4
DOI :
10.1109/CICC.2004.1358834
