Microresonator antenna for biosensing applications

A microdielectric resonator antenna of dimensions (100 × 100 × 500 m) 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.