Highly Sensitive Microwave Permittivity Measurements of Coal–Water Mixtures Using a Trisymmetric Stepped-Impedance Resonator and Deep-Learning-Assisted Inversion

Engineering

• Complex Permittivity 50%
• Composite Material 50%
• Deep Learning Method 100%
• Dielectrics 50%
• Hidden Layer 50%
• Loss Tangent 50%
• Measurement Error 50%
• Microwave Sensor 50%
• Real Part 50%
• Resonator 100%
• Scattering Parameters 50%

Chemical Engineering

• Coal Processing 100%
• Deep Learning Method 100%
• Neural Network 100%
• Permittivity Measurement 100%
• Water Content 100%

Material Science

• Composite Material 25%
• Microwave Sensor 25%
• Permittivity 100%
• Resonator 100%