紀要論文

高精度相補型スプリットリング共振器グルコースセンサー

A Complementary Split Ring Resonator Sensor Optimized for Maximizing the Dip and Q-value in S21 Frequency Characteristics

jpn

24368083

https://doi.org/10.15002/00030723

法政大学大学院理工学研究科

法政大学大学院紀要. 理工学研究科編

65

1

5

2024-03-24

Version of Record

A modified complementary split ring resonator (CSRR) sensor with a high-quality factor (Q-value) and sensitivity is developed for aiming at fluidic dielectric characterization, such as glucose monitoring. The microstrip transmission line and the CSRR sensor are formed on the front and backplane of a printed circuit board, respectively. The CSRR sensor is formed by two straight-line inductors, placed perpendicular to a microstrip line and a single ring-shaped capacitor. The width of the microstrip line (MSL) is widened, despite of lowering the characteristic impedance less than 50 Ω. The printed circuit board was fabricated. From S21 measurements, the dip was ‒56 dB at 6.14 GHz without a glucose aqueous solution on the CSRR sensor. Changes in S21 dip frequency and amount of the dip were observed to be approximately 100 MHz and 3 dB, respectively, for five different concentration of glucose aqueous solutions of 0, 1, 3, 5, and 10 wt%.

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