Title :
A DECT/Bluetooth multi-standard front-end with adaptive image rejection in 0.18 μm CMOS
Author :
Vidojkovic, Vojkan ; van der Tang, Johan ; Leeuwenburgh, Arjan ; Van Roermund, Arthur
Author_Institution :
Eindhoven Univ. of Technol., Netherlands
Abstract :
A DECT/Bluetooth multi-standard front-end with adaptive image rejection is described. The front-end is designed and simulated in 0.18 μm CMOS technology. Using a multi-band LNA with zero external components full integration of the front-end is achieved. In high image-reject DECT mode it has a NF of 10 dB consuming a current of 47 mA, while in low image-reject DECT mode a NF of 5 dB is obtained with a current of 39 mA. In high image-reject Bluetooth mode the front-end achieves a NF of 10 dB consuming a current of 39 mA and in low image-reject Bluetooth mode it has a NF of 5 dB using a current of 31 mA. Applying adaptive image rejection the power consumption is reduced 20%, the NF is improved 50% and the gain improves 30%, while the chip area is negligibly increased compared to the total chip area occupied by the front-end.
Keywords :
Bluetooth; CMOS analogue integrated circuits; amplifiers; cordless telephone systems; receivers; 0.18 micron; 10 dB; 31 mA; 39 mA; 47 mA; 5 dB; Bluetooth multistandard front-end; CMOS technology; DECT multistandard front-end; adaptive image rejection; chip area; front-end integration; image reject Bluetooth mode; image-reject DECT mode; multiband LNA; power consumption; Bluetooth; CMOS technology; Communication standards; Cost function; Energy consumption; Frequency; Interference; Noise measurement; Standards development; Wireless communication;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328259
