Microresonator antenna for biosensing applications

Microresonator antenna for biosensing applications

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A microdielectric resonator antenna of dimensions (100 ×100 ×500 µm) is designed for biosensing applications. The antenna is terminated with a thin layer of gold on the top and bottom of the microstructure for achieving a high Q. On top of the antenna is the sensing region (100 µm3), which loads the antenna depending on the type of material. The loading in turn changes the antenna reflectance, resonant frequency and polarisation, and thus enables the sensing action. The sensor activation and detection can be done using a far-infrared spectroscopy technique.


    1. 1)
      • The IFS 125 series FT-IR spectrometers, Burker optik GmbH, Rudolf-Plank-Str.27, Ettlingen, Germany, available at
    2. 2)
      • CST GmbH, Darmstadt, version 2011, Germany, available at
    3. 3)
    4. 4)
    5. 5)
      • K.M. Luk , K.W. Leung . (2002) Dielectric resonator antennas.
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