Dual Polarized Ceiling Antenna

Abstract

The invention provides a dual-polarized ceiling antenna which comprises a reflecting plate, at least three horizontally-polarized antenna radiating elements which are uniformly distributed around the periphery of the upper surface of the reflecting plate, a vertically-polarized antenna radiating element which is arranged in the center of the upper surface of the reflecting plate, a horizontally-polarized antenna power division network used for enabling the horizontally-polarized antenna radiating elements to carry out in-phase consistent feeding, a first feeder and a second feeder, wherein the horizontally-polarized antenna power division network is arranged on the lower surface of the reflecting plate, each horizontally-polarized antenna radiating element is electrically connected with the horizontally-polarized antenna power division network, the first feeder is electrically connected with the horizontally-polarized antenna power division network, and the second feeder is electrically connected with the vertically-polarized antenna radiating element. The dual-polarized ceiling antenna has the advantages of high radiant gain, uniform signals, reasonable directionality, high isolation and the like; and meanwhile, the height of an antenna outline can be reduced.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an improvement of a dual-polarization ceiling antenna. Background technique [0002] In the future fourth-generation mobile communication system, dual-polarized antenna technology will become one of the key technologies. The electric field formed by antenna radiation has a certain direction, which is called antenna polarization in the field. When the direction of the electric field is perpendicular to the ground, the wave is called a vertically polarized wave; when the direction of the electric field is parallel to the ground, the wave is called a horizontally polarized wave. Due to the characteristics of radio waves, it is determined that the horizontally polarized signal will generate a polarized current on the surface of the earth when it is close to the ground. The polarized current will rapidly attenuate the electric field signal due to the heat generated b...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, a dual-polarized antenna is usually combined by overlapping horizontally polarized antennas and vertically polarized antennas. This type of dual-polarized antenna not only has problems with poor isolation, gain, and roundness, but also The height of the antenna profile is large and takes up a lot of space

In the prior art, the vertically polarized antenna of the dual-polarized antenna is usually a conical surface. The manufacturing process of this type of antenna is complicated, the manufacturing materials are large, and the overall weight of the dual-polarized antenna is increased.

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