In order to improve the accuracy of subsurface target classification with ground penetrating radar (GPR) systems. it is desired to transmit and receive ultra-wide band pulses with varying combinations of polarization (a technique referred to as polarimetry). The sinuous antenna exhibits such desirable properties as ultra-wide bandwidth. polarization diversity. https://www.chiggate.com/voyage-et-cie-5-3-wick-candle-discount/