A compact CSRR loaded circularly polarized implantable antenna for biomedical applications

Author

ZeTao Wu;XiongYing Liu;Yi Fan;YunHui Di

Author_Institution

School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, China, State Key Laboratory of Millimeter Waves, Nanjing 210096, China

Volume

2

fYear

2015

Firstpage

1

Lastpage

3

Abstract

A novel single fed compact circularly polarized implantable antenna is presented for biomedical applications at industrial, scientific and medical band (ISM band: 2.40-2.48 GHz). By utilizing a complementary split-ring resonator (CSRR) loading on the radiator, the proposed antenna not only achieves miniaturization, but also realizes circular polarization. The total size of the proposed antenna, including substrate and superstrate, is 8.5 × 8.5 × 1.27 mm³. In order to evaluate the performance, the proposed antenna is simulated in a homogeneous cubic skin tissue phantom. The bandwidths of simulated impedance and axial ratio (AR) are 11.8% (2.30-2.59 GHz) with S11 <; -10 dB and 2.5% (2.41-2.47 GHz) with AR <; 3dB, respectively. The simulated peak gain is -22.1 dBi. In addition, the effect of the different embedded depth is discussed and examined.

Keywords

"Decision support systems","Gain","Loading","Loaded antennas","Polarization","Substrates"

Publisher

ieee

Conference_Titel

Microwave Conference (APMC), 2015 Asia-Pacific

Print_ISBN

978-1-4799-8765-8

Type

conf

DOI

10.1109/APMC.2015.7413087

Filename

7413087