Miniaturized implantable circularly polarized patch antenna

Author

Yong-Xin Guo ; Changrong Liu

Author_Institution

Nat. Univ. of Singapore, Singapore, Singapore

fYear

2014

fDate

4-6 Aug. 2014

Firstpage

271

Lastpage

272

Abstract

A single-fed miniaturized circularly polarized (CP) microstrip patch antenna is designed and experimentally demonstrated for biomedical applications. The proposed antenna is designed utilizing the capacitive loading on the radiator. Compared with a square patch antenna, the proposed antenna has achieved a significant size-reduction of ~72%. The footprint of proposed antenna is 10×10×1.27 mm³. The simulated impedance, axial ratio (AR) and radiation pattern are studied and compared in different phantom model and a Gustav voxel human body. The effect of different body phantoms is discussed to evaluate the sensitivity of the proposed antenna. The simulated and measured impedance bandwidths in one-layer skin phantom are 7.7% and 10.2%, respectively.

Keywords

antenna feeds; antenna radiation patterns; biomedical communication; electromagnetic wave polarisation; microstrip antennas; phantoms; prosthetics; Gustav voxel human body; axial ratio; biomedical applications; body phantoms; capacitive loading; impedance bandwidths; implantable circularly polarized patch antenna; one-layer skin phantom; phantom model; radiation pattern; single-fed miniaturized CP microstrip antenna; square patch antenna; Antenna measurements; Dipole antennas; Impedance; Microstrip antennas; Patch antennas; Circularly polarized antennas; biomedical applications; implantable antennas; small antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics (iWEM), 2014 IEEE International Workshop on

Conference_Location

Sapporo

Type

conf

DOI

10.1109/iWEM.2014.6963741

Filename

6963741