Dual Band, Miniaturized Permittivity Measurement Sensor With Negative-Order SIW Resonator
نویسندگان
چکیده
A novel dual band, highly sensitive Substrate Integrated Waveguide (SIW) sensor for permittivity measurements is presented. pair of modified Complementary Split Ring Resonators (CSRRs) etched on SIW surface. CSRRs are located in the center SIW, where electric field distribution high so that coupling be maximized. The between and as well adjacent results two notches transmission coefficient. These vary with dielectric loading sensor. ratio a notch variation to load determines sensitivity proposed Two sensitivities proportional provided. Normalized from both show identical values. Therefore, any environmental effect have same TZs. This demonstrates potential differential operation can mitigate condition. size small inductive capacitive effects forced operate below cut off frequency at negative-order-resonance mode. All design steps including design, presented details. principle described through an equivalent circuit model simulation results. experimental indicates normalized 3.4% which much higher than similar sensors. prototype ( $27.8\times 18.4\times 0.508$ mm 3 ) smaller those reported literature.
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ژورنال
عنوان ژورنال: IEEE Sensors Journal
سال: 2021
ISSN: ['1558-1748', '1530-437X']
DOI: https://doi.org/10.1109/jsen.2021.3110611