A new planar omnidirectional circularly polarized antenna, wireless communication base station, mobile terminal

Abstract

The invention belongs to the technical field of antennas, and discloses a novel planar omnidirectional circularly polarized antenna, a wireless communication base station, and a mobile terminal. One port of the power divider is connected to a printed electric dipole, and the other port of the power divider is connected to a magnetic couple. The poles are fed in the form of CPW, which realizes that the omnidirectional antenna has a simple planar structure on the vertical plane and the position of the feeding point does not affect the use and performance of the antenna. The present invention utilizes electric dipoles to radiate E_φ in the far field and magnetic dipoles to radiate E_θ in the far field to realize omnidirectional circularly polarized radiation characteristics; in order to produce an equivalent electric wall, place 18 on one side of the rectangular patch Metal short-circuit hole; introduce a one-to-two power divider to adjust the power distribution, one port is connected to the printed electric dipole, and the other port is connected to the magnetic dipole, feeding in the form of CPW; the two ports are output in the same phase, and the two ports The distance between them is one wavelength; the structure of the antenna is simple 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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