Horizontal omnidirectional filtering antenna

The invention provides a horizontal omnidirectional filtering antenna, which comprises an antenna shell, a metal inner core, a coaxial feed mechanism, a connecting bracket and an open-circuit filtering branch group, and is characterized in that one end of the metal inner core is connected with the inner surface of the top of the antenna shell, and the other end of the metal inner core is fixedly connected with the coaxial feed mechanism; the coaxial feed mechanism is fixed at the bottom of the antenna shell; the antenna shell is provided with a radiation gap, the radiation gap divides the antenna shell into a first shell located at the top of the antenna shell and a second shell located at the bottom of the antenna shell, and the connecting support is connected with the first shell and the second shell. The first shell and the second shell respectively form two radiation grooves so as to realize horizontal comprehensive radiation, the filtering effect is generated by placing the open-circuit ...