Abstract
We proposed a novel micro strip sensor based on Dual-D shaped Complementary Split Resonator (Dual-D CSR) in the microwave region. In this research,the distribution of the electric field and transmission response (S 21 ) have been simulated. Besides, we also investigated the effect of the width between Dual-D on resonance characteristics. Furthermore, the process and the performance is illustrated when Dual-D CSR is used as a sensor. Simulation results show that the reflection spectrum moves to the lower frequency side with respect to a small change of sample permittivity, and the relation between resonant frequency and sample permittivity reveals a good linearity. Finally, theDual-D CSR can increase the interaction area between electric field and sample. This feature making the sensor very sensitivity to surrounding sample substances. In addition, the simplicity of such sensing structure enables its utilization in a wide frequency range by simply varying the geometric parameter of resonator. Such device have potential applications in dielectric sensing, especially for the detection of liquid.
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