Patent ID: 8884832

Claim:
An indoor ceiling-mount omnidirectional antenna, comprising: a monopole having a conical-column structure, the monopole including a first cone part having a first small base and a first large base, and a columnar part, wherein the first cone part includes a first hollow platform cone, the first columnar part includes a first hollow column, the monopole further comprises a feed column connected with the first small base of the first cone part, and an outer radius of the first columnar part is the same as a first radius of the first large base of the first cone part, a reflecting plate having disc-cone structure and arranged below the monopole, the reflecting plate including: a second cone part having a second small base and a second large base, and a disc, wherein: the disc comprises a circular plate and a second hollow column, the second cone part including a second hollow platform cone, an inner radius of the circular plate is the same as an outer radius of the second hollow column, the outer radius of the second hollow column is the same as a second radius of the second large base of the second cone part, and the circular plate, the second hollow column, and the second hollow platform cone are connected to each other; and a feed connector, disposed in a center of the second small base of the second cone and connecting with a feed coaxial line, for receiving and emitting signal feed-in or feed-out, wherein the monopole and the reflecting plate are arranged such that the first small base of the first cone part faces the second small base of the second cone part.