Far-field UHF remotely powered front-end for patient monitoring with wearable antenna

Author

Kazanc, Onur ; Rodriguez-Rodriguez, Jose A. ; Delgado-Restitute, Manuel ; Maloberti, Franco ; Dehollain, Catherine

Author_Institution

RFIC Group, Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland

fYear

2013

fDate

16-19 June 2013

Firstpage

1

Lastpage

4

Abstract

The design of a wearable antenna for UHF band at 900 MHz with an integrated front-end for a wireless sensor system targeting remote patient monitoring is presented. A wearable antenna for human body with -7.2 dB gain is demonstrated using five layer torso model. The antenna can deliver 25 μW of power to the rectifier at 4.6 meters distance from the base station emitting P_EIRP=4 W. Local power management circuitry consumes a total power of 4 μW while delivering 10 μW of power for the sensors of the wireless sensor system. The system designed with 0.18pm CMOS process demonstrates the performance of the frontend together with 3D electromagnetic simulation results of the wearable antenna.

Keywords

CMOS integrated circuits; UHF antennas; biomedical communication; patient monitoring; wearable antennas; wireless sensor networks; 3D electromagnetic simulation; CMOS process; UHF band; far-field UHF remotely powered front-end; frequency 900 MHz; integrated front-end; patient monitoring; power 10 muW; power 25 muW; power 4 muW; power management circuitry; rectifier; torso model; wearable antenna; wireless sensor system; Antennas; Envelope detectors; Modulation; Photonic band gap; Radio frequency; Sensor systems; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

New Circuits and Systems Conference (NEWCAS), 2013 IEEE 11th International

Conference_Location

Paris

Print_ISBN

978-1-4799-0618-5

Type

conf

DOI

10.1109/NEWCAS.2013.6573664

Filename

6573664