Design Considerations for the Implanted Antennas

Author

Mahanfar, A. ; Bila, S. ; Aubourg, M. ; Verdeyme, S.

Author_Institution

Simon Fraser Univ., Burnaby

fYear

2007

fDate

3-8 June 2007

Firstpage

1353

Lastpage

1356

Abstract

Different aspects of the design of implanted devices is discussed by numerical analysis of a conceptual model. Different antenna topologies are compared for their efficiency and sensitivity to variations in thickness and dielectric constant of a lossy superstrate (which models the skin). It was shown that microstrip patch and loop antennas are the most viable candidates among basic antenna topologies. A modified objective function is proposed which can take into account the strong detuning due to lossy superstrate. Finally the effect of a protective lossless superstrate is investigated intensive numerically. The trade-offs involved in the size of the protective superstrate are addressed by finding the trends in which the antenna performance varies with the dimensions of the protective layer.

Keywords

biomedical equipment; microstrip antennas; microwave antennas; numerical analysis; permittivity; skin; antenna topologies; implanted antenna design; implanted device design; lossy superstrate dielectric constant; lossy superstrate thickness; microstrip loop antennas; microstrip patch antennas; numerical analysis; skin; Circuits; Design engineering; Design optimization; Dielectric losses; Dipole antennas; Implants; Microstrip antennas; Protection; Skin; Topology; Implanted devices; buffer superstrate; lossy superstrate; optimization;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380463

Filename

4264085