Title :
Design of a high-linearity up-conversion mixer for wireless body area sensor network applications
Author :
Huang, I.-Yu. ; Wen-Hui Huang
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
Utilizing TSMC 0.18 μm CMOS technology, this research presents a 5.8 GHz up-conversion mixer with chip size only 1.01 mm × 0.85 mm for wireless body area sensor network. The major characteristics of the proposed mixer circuit, including the linearity (input third order intercept point, IIP3) and power conversion gain (CG) can be improved by adopting the LO body-grounded, gm-boosting and current-bleeding techniques. A high linearity (12 dBm IIP3), high power CG (6.2 dB), and low power consumption (6.6 mW at 1.2 V voltage) of the implemented up-conversion mixer chip are demonstrated in this study.
Keywords :
CMOS integrated circuits; biomedical electronics; body area networks; body sensor networks; integrated circuit design; microwave detectors; microwave integrated circuits; microwave mixers; CG; IIP3; LO body-grounded gm-boosting technique; TSMC CMOS technology; current-bleeding technique; frequency 5.8 GHz; gain 6.2 dB; high-linearity up-conversion mixer chip; input third order intercept point; power 6.6 mW; power conversion gain; voltage 1.2 V; wireless body area sensor network application; CMOS integrated circuits; Gain; Linearity; Mixers; Radio frequency; Wireless communication; Wireless sensor networks;
Conference_Titel :
Sensors, 2012 IEEE
Conference_Location :
Taipei
Print_ISBN :
978-1-4577-1766-6
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2012.6411225
