Title :
An IEEE 802.15.4 RF transmitter for 2.4 GHz ISM band healthcare applications
Author :
Wang, Liang-Hung ; Chen, Tsung-Yen ; Chen, Huan ; Chen, You-Yin ; Fang, Qiang ; Lee, Shuenn-Yuh
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Cheng Univ., Ming-Hsiung, Taiwan
Abstract :
This paper presents a low-power RF-transmitter for intelligent healthcare systems. With attention to power-efficient communication in the local sensor network, the required low-power integrated circuits (ICs) are developed for a healthcare system with miniaturization and system integration. A quadrature CMOS voltage-controlled oscillator and a direct-conversion transmitter with PA and up-conversion mixer have been implemented to fit the specification of the IEEE 802.15.4 2.4 GHz standard. The low-power ICs of the transmitter have been applied in the TSMC 0.18-μm CMOS standard process. The measurement results reveal that the transmitter IC can fit in with the link budget of the UHF ZigBee system for healthcare applications.
Keywords :
CMOS integrated circuits; IEEE standards; Zigbee; health care; oscillators; CMOS standard process; IEEE 802.15.4 network; ISM band healthcare applications; UHF ZigBee system; direct-conversion transmitter; frequency 2.4 GHz; intelligent healthcare systems; local sensor network; low-power RF-transmitter; low-power integrated circuits; miniaturization; power-efficient communication; quadrature CMOS voltage-controlled oscillator; size 0.18 mum; system integration; up-conversion mixer; Body sensor networks; CMOS integrated circuits; Medical services; Mixers; Monitoring; Radio frequency; Transmitters;
Conference_Titel :
Bioelectronics and Bioinformatics (ISBB), 2011 International Symposium on
Conference_Location :
Suzhou
Print_ISBN :
978-1-4577-0076-7
DOI :
10.1109/ISBB.2011.6107644
