Title :
A transmitter front-end design for 5GHz WLAN applications
Author :
Ihm, Gook-Ju ; Oh, Nam-Jin ; Nguyen, Trung-Kien ; Lee, SangGug
Author_Institution :
Inf. & Commun. Univ., Daejeon, South Korea
Abstract :
Up-conversion mixer and driver amplifier for 802.11a wireless LAN application are designed and fabricated on 0.18 CMOS technology. The proposed up-conversion mixer adopts source degeneration transconductance stage to control the conversion gain, and driver amplifier uses cascode topology to control the gain and linearity. The fabricated up-mixer shows -6 ∼ 10 dB of conversion gain and -18.5 dBm of OP-1dB at 10 dB gain, and the driver amplifier shows -8 ∼8 dB of power gain and 2 dBm of OP-1dB at 6 dB gain. The up-mixer and the driver amplifier consume 12mA and 9mA from 1.8 V supply, respectively.
Keywords :
CMOS integrated circuits; amplifiers; gain control; mixers (circuits); transmitters; wireless LAN; 0.18 micron; 1.8 V; 10 dB; 12 mA; 5 GHz; 6 dB; 802.11a wireless LAN application; 9 mA; CMOS technology; cascode topology; conversion gain; driver amplifier; source degeneration transconductance stage; transmitter front-end design; up-conversion mixer; CMOS technology; Driver circuits; Gain; Linearity; Mixers; Power amplifiers; Radiofrequency amplifiers; Topology; Transmitters; Wireless LAN;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2004. ICMMT 4th International Conference on, Proceedings
Print_ISBN :
0-7803-8401-6
DOI :
10.1109/ICMMT.2004.1411596
