2.45 GHz telecontrol for cross-band biomedical radio transponder application

Author

Crumley, G.C. ; Evans, N.E.

Author_Institution

Sch. of Electr. & Mech. Eng., Ulster Univ., Newtownabbey, UK

fYear

1998

fDate

16-17 May 1998

Firstpage

97

Lastpage

99

Abstract

The paper discusses the design of a minimum power 2.45 GHz pulse receiver and companion transmitter for use in a semi active, duplex RF transponder. A 50 Ω microstrip stub matched zero bias diode detector forms the heart of the body-worn receiver, achieving a tangential sensitivity of -56 dBm. Three-pole bandpass filtering provides rejection of out of band signals, typically 28 dB in the 900 MHz cellular band. A 3.6 V portable on-off-keyed transmitter with suitable output power to communicate with the transponder provided a full mobile transmitter for system tests

Keywords

band-pass filters; biocontrol; biomedical telemetry; medical signal processing; telecontrol; transponders; 2.45 GHz; 3.6 V; 50 W; body-worn receiver; companion transmitter; cross band biomedical radio transponder application; full mobile transmitter; microstrip stub matched zero bias diode detector; out of band signals; portable on-off-keyed transmitter; pulse receiver; semi active duplex RF transponder; system tests; tangential sensitivity; telecontrol; three pole bandpass filtering; Band pass filters; Envelope detectors; Filtering theory; Heart; Microstrip; Power generation; Radio frequency; Radio transmitters; Receivers; Transponders;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technology Applications in Biomedicine, 1998. ITAB 98. Proceedings. 1998 IEEE International Conference on

Conference_Location

Washington, DC

Print_ISBN

0-7803-4973-3

Type

conf

DOI

10.1109/ITAB.1998.674685

Filename

674685