Study of Temperature Characteristics of Micromachined Suspended Coplanar Waveguides for Biosensing Applications

Sensors

Lijie Li¹ 

关键词: temperature characteristics;    coplanar waveguide;    biosensors;   

DOI  :  10.3390/s110302640

来源: mdpi

【 摘 要 】

In the recent development on biosensors, coplanar waveguide based microwave dielectric sensors have been attracting more and more attentions. In this paper, microwave performance of a suspended coplanar waveguide subject to temperature variations, particularly in a small range, is studied. The prototype is realized through a MEMS fabrication foundry. The thermal transfer analysis of the device is conducted using finite element method, and the microwave properties of the device are characterized. One of the results shows that at 20 GHz, the S11 has decreased by 7.4%, and S21 has increased by 3.5% when the voltage applied to the heaters varies from 9 V to 29 V.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.