A coaxial cable splitter including an integral body with a first cable connection, a second cable connection and a third cable connection, each defining an axis. It consists of a body the upper part of which can be opened and closed. Thus, the receiving circuit provides a ranging circuit and a communication separately, so that the demodulation processing of ranging and communication can be performed in parallel. A coupling element surrounds the radiating strips and a dielectric layer is sandwiched between the patch element and the radiating strips. The plant exhibits a high tolerance to heat and resistance to disease.