Dual-frequency dual-horizontally-polarized omnidirectional antenna

Abstract

The invention provides a dual-frequency dual-horizontally-polarized omnidirectional antenna, which is characterized in that the antenna comprises a dielectric plate, and first dipole antennas and second dipole antennas attached to a first surface and a second surface of the dielectric plate respectively; the first dipole antennas and the second dipole antennas are swastika-shaped; and the projections of the first dipole antennas and the second dipole antennas on the dielectric plate are in the shape of the Chinese character 'tian'. The four identical pairs of dual-frequency dipole antennas are placed in the horizontal plane to form a quadrangle, and the current is distributed evenly on the pairs of dipole antennas by equal-amplitude and equal-phase feeding. Horizontal polarization and omnidirectionality of the antenna in the horizontal plane are realized by superimposing the electric field of far-field radiation. A printed dipole structure is adopted. The whole antenna or the four sides of the antenna can be bent downward appropriately to adapt to some surface structures, and thus, the conformal requirement is met.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a dual-frequency dual-horizontal polarization omnidirectional antenna. Background technique [0002] In recent years, with the rapid development of wireless communication technology, people use a large number of wireless terminal devices such as mobile phones and tablets for web surfing and high-speed data transmission. How to ensure data coverage without dead ends and how to achieve high data throughput has become the core of many network devices. Design specifications. [0003] Current wireless communication devices use omnidirectional antennas or smart scanning antennas to achieve coverage without dead spots, and use MIMO antenna technology to achieve high throughput. However, in open environments, such as stadiums and railway stations, multipath reflection is relatively weak, and space diversity alone cannot To achieve a higher throughput rate, it is necessary to introduce ...

AI Technical Summary

Problems solved by technology

[0004] The current omnidirectional antennas, such as dipole antennas and PIFA antennas, are mostly vertically polarized, while several common horizontally polarized omnidirectional antennas, such as Alford loop antennas, printed dipole array antennas, and waveguide slot arrays Antennas, etc. cannot simultaneously meet the requirements of dual frequency, dual horizontal polarization, 5G broadband and conformal miniaturization

Images