Novel plane omni-directional circularly polarized antenna, wireless communication base station and mobile terminal

Abstract

The invention belongs to the technical field of antennas and discloses a novel plane omni-directional circularly polarized antenna, a wireless communication base station and a mobile terminal, whereinone port of a power divider is connected with a printed electric dipole, the other port of the power divider is connected with a magnetic dipole, and feeding is carried out in a CPW mode, so that theomni-directional antenna is in a simple plane structure on the vertical plane and the feed point position does not influence the use and the performance of the antenna. According to the antenna, thebase station and the mobile terminal, the E _ phi is radiated in a far field by utilizing the electric dipole and the E-theta is radiated in the far field by utilizing the magnetic dipole so as to achieve the omni-directional circularly polarized radiation characteristic; in order to generate an equivalent electric wall, 18 metal short circuit holes are formed in one side of a rectangular patch; asub-power divider is introduced to adjust the power distribution, one port of the sub-power divider is connected with the printed electric dipole, and the other port is connected with the magnetic dipole, and feeding is carried out in the CPW mode, so that the two ports are output in the same phase; the distance between the two ports is one wavelength; and the antenna is simple in structure and easy to manufacture.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a novel planar omnidirectional circularly polarized antenna, a wireless communication base station and a mobile terminal. Background technique [0002] Both wireless communication base stations and mobile terminals require omnidirectional antennas, which can provide greater signal coverage than traditional directional antennas. Microstrip antennas are also widely used in many fields such as wireless communication and satellite remote sensing detection because of their advantages such as low profile, light weight, small size, simple structure and easy fabrication. Existing omni-directional antennas cannot satisfy both the realization of a planar structure on the vertical plane and the position of the feeding point without affecting the use and performance of the antenna. It cannot meet the needs of antennas in different situations; due to structural limitations, some...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: the existing omnidirectional antennas cannot satisfy the problem of achieving a planar structure on the vertical plane and the position of the feeding point without affecting the use and performance of the antenna.

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