A low noise amplifier for human body communication RF front-end design

Author

Guan, Feng ; Nie, Zedong ; Wang, Wencheng ; Leng, Tengfei ; Wang, Lei

Author_Institution

Inst. of Biomed. & Health Eng., Shenzhen Inst. of Adv. Technol. (SIAT), Shenzhen, China

fYear

2011

fDate

3-5 Nov. 2011

Firstpage

255

Lastpage

258

Abstract

A Low Noise Amplifier (LNA) for Human Body Communication (HBC) RF front-end was presented in this paper. The circuit was designed with SMIC 0.18um process and simulated with Cadence Spectre. HBC characteristics, such as channel pass band and attenuation were investigated prior to the design. An active noise cancellation technique was employed to achieve low noise figure. And resistor feedback technique was introduced to meet the design specifications. Post-annotated simulations showed that the LNA with an active area of 60μm×50μm worked as intended. Within the frequency band from 100 KHz to 100MHz, the minimum noise figure was 1.82 dB and the S21 value was 19.5 dB, respectively.

Keywords

active noise control; amplifiers; biomedical engineering; body area networks; body sensor networks; Cadence Spectre simulation; RF front end design; SMIC process; active noise cancellation; attenuation; channel pass band; human body communication; low noise amplifier; resistor feedback technique; Impedance; Noise cancellation; Noise figure; Radio frequency; Resistors; Transceivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioelectronics and Bioinformatics (ISBB), 2011 International Symposium on

Conference_Location

Suzhou

Print_ISBN

978-1-4577-0076-7

Type

conf

DOI

10.1109/ISBB.2011.6107695

Filename

6107695