Modelling and Analysis of Ω-shaped Double Negative Material-assisted Microwave Sensor

A novel Ω-shaped double negative (DNG) material-assisted microwave sensor is presented, and modelled using a full wave electromagnetic commercial simulator CST. Simulating results show that the amplified evanescent wave is sensitive to the permittivity of dielectric material in the detecting zone. Meanwhile, mechanism of the evanescent wave amplification is explained. Comparing with conventional microwave resonant sensor, the Ω-shaped DNG materials-assisted microwave sensor allows for much higher sensitivity.

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