Electromagnetic Polarization Technique in HF Mobile Communication

To counter change of electric wave polarization in scattering space, it is discussed that an extra factor of triple channel capacity can be obtained in a scattering environment. There are six distinguishable electric magnetic states of polarization at a given point, rather that two as is usually assumed. According to the characteristics of HF radio transmission spreading in a scattering environment, the electric and magnetic polarizations are analysed that is not only horizontal or vertical in the receive point. A printed helix antenna is used to receive or transmit different polarization waves on highway with velocity of 40 km per hour. After comparing horizontal polarization, vertical polarization with circular polarization in tone quality for transmitting, a relationship is given out between tone quality and transmitting distance. The experiment shows that the reliability of HF mobile communication can be improved through different polarizations are used to receive or transmit the same information, and then a novel model of multiple Polarization antenna system is presented.