Reusable EGaIn-Injected Substrate-Integrated-Waveguide Resonator for Wireless Sensor Applications

Sensors

Muhammad Usman Memon²  Sungjoon Lim¹ 

[1] School of Electrical and Electronics Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Korea; E-Mail

关键词: wireless sensors;    multi-resonator;    SIW;    EGaIn;    liquid metal;    RFID;    chipless tag;    barcode;   

DOI  :  10.3390/s151128563

来源: mdpi

【 摘 要 】

The proposed structure in this research is constructed on substrate integrated waveguide (SIW) technology and has a mechanism that produces 16 different and distinct resonant frequencies between 2.45 and 3.05 GHz by perturbing a fundamental TE₁₀ mode. It is a unique method for producing multiple resonances in a radio frequency planar structure without any extra circuitry or passive elements is developed. The proposed SIW structure has four vertical fluidic holes (channels); injecting eutectic gallium indium (EGaIn), also known commonly as liquid metal (LM), into these vertical channels produces different resonant frequencies. Either a channel is empty, or it is filled with LM. In total, the combination of different frequencies produced from four vertical channels is 16.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.