CORDIS OpenAire Sygma UnpayWall Multidisciplinary Digital Publishing Institute ZENODO OpenAIRE DOAJ Crossref Microsoft Academic Graph Europe PubMed Central PubMed Central http://www.mdpi.com/1424-8220/17/4/892/pdf https://doi.org/10.3390/s17040892 Sensors Open Access 2017-04-18 <p>In this article, we propose a novel microfluidic microstrip electromagnetic band gap (EBG) sensor realized using cost-effective 3D printing technology. Microstrip sensor allows monitoring of the fluid properties flowing in the microchannel embedded between the microstrip line and ground plane. The sensor￢ﾀﾙs operating principle is based on the phase-shift method, which allows the characterization at a single operating frequency of 6 GHz. The defected electromagnetic band gap (EBG) structure is realized as a pattern in the microstrip ground plane to improve sensor sensitivity. The designed microfluidic channel is fabricated using a fused deposition modelling (FDM) 3D printing process without additional supporting layers, while the conductive layers are realized using sticky aluminium tape. The measurement results show that the change of permittivity of the fluid in the microfluidic channel from 1 to 80 results in the phase-shift difference of almost 90ￂﾰ. The potential application is demonstrated through the implementation of a proposed sensor for the detection of toluene concentration in toluene￢ﾀﾓmethanol mixture where various concentrations of toluene were analysed.</p> fused deposition modelling (FDM) electromagnetic band gap (EBG) Chemical technology microfluidics phase-shift method 0202 electrical engineering, electronic engineering, information engineering microstrip sensor; electromagnetic band gap (EBG); microfluidics; 3D printing; fused deposition modelling (FDM); phase-shift method microstrip sensor 3D printing TP1-1185 02 engineering and technology Article Vasa Radonić, Slobodan Birgermajer, Goran Kitić, 2017-04-18 journalpaper <p>In this article, we propose a novel microfluidic microstrip electromagnetic band gap (EBG) sensor realized using cost-effective 3D printing technology. Microstrip sensor allows monitoring of the fluid properties flowing in the microchannel embedded between the microstrip line and ground plane. The sensor￢ﾀﾙs operating principle is based on the phase-shift method, which allows the characterization at a single operating frequency of 6 GHz. The defected electromagnetic band gap (EBG) structure is realized as a pattern in the microstrip ground plane to improve sensor sensitivity. The designed microfluidic channel is fabricated using a fused deposition modelling (FDM) 3D printing process without additional supporting layers, while the conductive layers are realized using sticky aluminium tape. The measurement results show that the change of permittivity of the fluid in the microfluidic channel from 1 to 80 results in the phase-shift difference of almost 90ￂﾰ. The potential application is demonstrated through the implementation of a proposed sensor for the detection of toluene concentration in toluene￢ﾀﾓmethanol mixture where various concentrations of toluene were analysed.</p> Microfluidic EBG Sensor Based on Phase-Shift Method Realized Using 3D Printing Technology 10.3390/s17040892