Butterfly Shaped Planar Microstrip Resonant Sensor for Measuring Permittivity of Liquids

A planar microstrip resonant sensor is proposed. Permittivity of the liquid samples can be found using this method. The proposed structure is a structure that exhibit high field confinement and have good dispersion analysis. The design is simulated in Ansys Studio Suite HFSS and found that the resonant frequencies decreases when permittivity increases. Sensor finds application in different areas such as detecting adulteration of oil etc.