Serial Patch Array Antenna for an FMCW Radar Housed in a White Cane

الملخص EN

The design, realization, and test of the transmitting and receiving antennas for an FMCW radar operating between 24 and 24.25 GHz (ISM band), to be housed in a white cane for improving mobility of visually impaired subjects, have been performed.

The coaxial-to-microstrip transition necessary for feeding the antennas has been studied together with the characteristics of serial arrays of increasing number of patches.

Based on this study, a serial array with 8 patches has been selected for the transmitting and receiving antennas.

The realized structures show a reflection coefficient lower than −10 dB in the ISM band.

When the antennas are attached to an FMCW radar board, the radar is able to record reflections from a metallic panel up to a 5 m distance.