An SIW Resonator Sensor for Liquid Permittivity Measurements at C Band

• Published in: IEEE microwave and wireless components letters Vol. 25; no. 11; pp. 751 - 753
• Main Authors: Changjun Liu, Fan Tong
• Format: Journal Article
• Language: English
• Published: IEEE 01.11.2015
• Subjects: Artificial neural network (ANN); Artificial neural networks; complex permittivity; Liquids; microwave industrial application; Permittivity measurement; Q-factor; Resonant frequency; resonator; substrate integrated waveguide (SIW)

This letter presents a novel substrate integrated waveguide (SIW) resonator sensor that is specifically designed to measure the complex permittivity of liquids. The resonant characteristics of the sensor are influenced by liquids through a slot opened on the top plane. The inverse problem of obtaini...