Design of RF front end receiver for biomedical applications

Author

Moni, D. Jackuline ; SereneSanchia, X.

Author_Institution

Dept. of ECE, Karunya Uniersityz, Coimbatore, India

fYear

2015

fDate

26-27 Feb. 2015

Firstpage

503

Lastpage

507

Abstract

This paper presents RF front end receiver circuit for biomedical applications especially for ECG acquisition systems. The RF front end system consists of Low Noise Amplifier (LNA), Differential Power Splitter (DPS) and a quadrature mixer. The three stage LNA with body biasing technique is introduced to improve the noise and gain and the differential power splitter is used to provide the differential signals to the quadrature mixer. The down conversion mixer gives I/Q output which will be further reduced by an off chip filter. The circuit is implemented in 0.18μm technology using cadence to meet the zigbee standard of 2.4-5.5GHz. The metrics achieved include noise figure of 7dB and the conversion gain of 13.54dB. Further the power consumption is 6mW for the 1V supply voltage.

Keywords

Zigbee; biomedical communication; electrocardiography; low noise amplifiers; mixers (circuits); radio receivers; DPS; ECG acquisition systems; I/Q output; LNA; RF front end receiver circuit; biomedical applications; differential power splitter; differential signals; frequency 2.4 GHz to 5.5 GHz; low noise amplifier; power 6 mW; power consumption; quadrature mixer; size 0.18 mum; voltage 1 V; zigbee standard; 1f noise; Mixers; Noise figure; Radio frequency; Receivers; Wireless communication; Analog front-end; low noise amplifier(LNA); power splitter; quadrature mixer;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Communication Systems (ICECS), 2015 2nd International Conference on

Conference_Location

Coimbatore

Print_ISBN

978-1-4799-7224-1

Type

conf

DOI

10.1109/ECS.2015.7124957

Filename

7124957