4.5.3 A Novel design of Antenna for biosensing applications
- Event
- 14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany - Chapter
- 4.5 Wireless Sensing
- Author(s)
- F. Chang, Y. Yin, C. Lin - Institute of Biomedical Engineering, National Taiwan University (Taiwan), J. Shiu - Institute of Bioelectronics and Bioinformatics, National Taiwan University (Taiwan)
- Pages
- 407 - 410
- DOI
- 10.5162/IMCS2012/4.5.3
- ISBN
- 978-3-9813484-2-2
- Price
- free
Abstract
An antenna-based sensor with novel combinational design of metamaterial and transmission line are proposed for the applications of biosensors. Working at 1.6 GHz resonant frequency, our design aims to reduce the size of antenna biosensor by applying metamaterial structure. The active sensing area of antenna was optimized based on the distribution of electrical field to measure the permittivity and loss tangent of sample by the scattering parameters. The resonant frequency shifts from 1.69 GHz to 1.63 GHz under different concentrations of waterethanol solutions (3% to 100%) with equivalent permittivity of 79 to 14. According to our results, this antenna biosensor has advantages of small size, lower resonant frequency, real time, label free, sensitive, low profile and easy to integrated with printed circuit boards (PCB) for practical applications.