Design and Evaluation of a Compact Antenna for Implant-to-Air UWB Communication

Author

Dissanayake, Tharaka ; Yuce, Mehmet R. ; Ho, Chee

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Univ. of Newcastle, Callaghan, NSW

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

153

Lastpage

156

Abstract

A compact, printed, capsule-shaped ultrawideband (UWB) antenna for biomedical implants is presented. The 10-dB return loss bandwidth of the proposed antenna is 3.5-4.5 GHz, which covers the recently proposed UWB for biomedical applications. The antenna matching has been optimized using CST Microwave Studio and verified by measurements. An optimized feed mechanism to reduce guided wavelength, as well as integration with other electronics, has been considered in the antenna design. Radiation performance has been evaluated on an impulse-based UWB transmitter/receiver testbed to show that the antenna is usable in biomedical applications, such as capsule endoscopes. The antenna has been tested both in free space and with tissue loading.

Keywords

antenna feeds; antenna testing; biological tissues; biomedical communication; microstrip antennas; microwave antennas; prosthetics; receiving antennas; transmitting antennas; ultra wideband antennas; CST Microwave Studio; biomedical application; capsule endoscope; capsule-shaped ultrawideband antenna; compact antenna testing; frequency 3.5 GHz to 4.5 GHz; implant-to-air UWB communication; impulse-based UWB receiver; impulse-based UWB transmitter; optimized feed mechanism; printed antenna; radiation performance; tissue loading; Biomedical communication; broadband communication; printed antennas; ultrawideband (UWB) antennas;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2009.2013370

Filename

4757217