Broadband omnidirectional antenna for mobile communication

The invention provides a broadband omnidirectional antenna for mobile communication. The broadband omnidirectional antenna comprises a feeder cable, an upper oscillator, a lower oscillator and a fixed base, wherein the lower oscillator is fixed on the fixed base, the upper oscillator is supported above the upper oscillator through a polytetrafluoroethylene column, the upper oscillator and the lower oscillator are connected by a short-circuit conducting wire, an external conductor of the feeder cable is connected with the lower oscillator for constituting a reverse feeding end, and an internalconductor of the feeder cable is connected with the upper oscillator for constituting a forward feeding end. The broadband omnidirectional antenna can improve radiation efficiency, improve communication quality, improve communication environment and improve the broadband impedance matching of the antenna, and has the advantages of simple impedance bandwidth structure, easy production, low cost and convenient mass producti