Title :
Variable-gain up-conversion mixer with current reuse for 5-GHz W-LAN applications
Author :
Presti, Calogero D. ; Carrara, Francesco ; Palmisano, Giuseppe
Author_Institution :
Facolta di Ingegneria, Catania Univ., Italy
fDate :
28 Aug.-2 Sept. 2005
Abstract :
This paper presents an up-conversion mixer for 5-GHz W-LAN applications, whose input stage is based on a novel variable-gain transconductor. The proposed topology reduces current consumptions, through DC current reuse for mixer biasing. Moreover, a new low-consumption control circuit is introduced, which achieves a temperature-stable and linear-in-dB characteristic, providing a 40-dB dynamic range within ±1 dB gain error. An output 1-dB compression point of 2.4 dBm is achieved, while drawing less than 20 mA from a 3-V power supply.
Keywords :
low-power electronics; microwave mixers; network topology; power consumption; wireless LAN; 3 V; 5 GHz; DC current reuse; W-LAN applications; circuit topology; current consumption; linear-in-dB characteristic; low-consumption control circuit; mixer biasing; temperature stability; variable-gain transconductor; variable-gain up-conversion mixer; wireless local area networks; Circuit topology; Dynamic range; Error correction; Frequency; Gain control; Power control; Temperature control; Transconductance; Transconductors; Wireless LAN;
Conference_Titel :
Circuit Theory and Design, 2005. Proceedings of the 2005 European Conference on
Print_ISBN :
0-7803-9066-0
DOI :
10.1109/ECCTD.2005.1522957
