Omnidirectional broadband monopole antenna

摘要

An omnidirectional broadband monopole antenna comprises a ground plane, a radiating member, and a feed member. The ground plane is made of a metal plate. The radiating member comprises a first sub-radiating member, a second sub-radiating member connected to one side of the first sub-radiating member to provide a first angle therebetween, and a third radiating member connected to another side of the first sub-radiating member opposite the second sub-radiating member; a second angle is provided by the first and third sub-radiating members. The feed member is made of a metal rod with one end connected to the radiating member and the other to a signal source. Gain variations of the antenna's horizontal radiation pattern across the operating bandwidth are less than 3 dB.