Miniaturization of an UWB Dual-Polarized Antenna

For some UWB applications (short range radars, medical imaging), it has been shown that the use of an antenna that supports a dual-polarization can enhance their accuracy. However, the size of classic UWB dual-polarized antennas makes their integration into small devices difficult. As size became crucial, miniaturization techniques have been previously investigated in an UWB context. In this paper, we aim to provide an electrically-small UWB antenna with a dual-polarized radiation pattern. A planar miniaturization technique has been investigated on a dual-polarized sinuous antenna. A size reduction of 32% has been achieved without compromising on either bandwidth or radiation performances.