A Broadband Circularly Polarized Magnetoelectric Dipole Antenna

A dipole antenna, circular polarization technology, applied in the field of microwave radio frequency, can solve the problems of poor circular polarization characteristics, poor gain flatness, narrow gain bandwidth, etc., to achieve good circular polarization characteristics, small gain fluctuation, and improved Effect of Circular Polarization Bandwidth

Active Publication Date: 2022-07-29
GUANGDONG UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] This application provides a broadband circularly polarized magnetoelectric dipole antenna, which is used to solve the problems of existing magnetoelectric dipole antennas with complex structure, poor circular polarization characteristics, narrow gain bandwidth and poor gain flatness. technical problem

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  • A Broadband Circularly Polarized Magnetoelectric Dipole Antenna
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  • A Broadband Circularly Polarized Magnetoelectric Dipole Antenna

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Embodiment Construction

[0036] In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] For ease of understanding, see Figure 1 to Figure 2 , a broadband circularly polarized magnetoelectric dipole antenna provided by this application includes: a dielectric substrate 1;

[0038] The upper surface of the dielectric substrate 1 is provided with a metal floor 2;

[0039] A metal parasitic ring 30 i...

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Abstract

The present application discloses a broadband circularly polarized magnetoelectric dipole antenna. By setting a metal parasitic ring, the circularly polarized bandwidth of the antenna can be greatly improved without changing the main structure of the antenna. At the same time, the broadband circularly polarized magnetoelectric dipole antenna of the present application adopts the feeding method of slot coupling, and adopts the metal feeding strip on the lower surface of the dielectric substrate to couple the coupled signal to the horizontal metal patch above the metal floor through the rectangular slot and vertical metal patch, and set a metal parasitic ring around the metal patch module to introduce a new circularly polarized resonant mode for the magnetoelectric dipole antenna, so that the antenna has a better circular polarization in the broadband operating bandwidth. Polarization characteristics. In addition, the structure of the metal parasitic ring will not affect the structure of the antenna, and, on the premise of maintaining the broadband circular polarization bandwidth, the gain fluctuation in the working frequency band is small, and the gain bandwidth of the broadband and better flat gain.

Description

technical field [0001] The present application relates to the technical field of microwave radio frequency, and in particular, to a broadband circularly polarized magnetoelectric dipole antenna. Background technique [0002] With the rapid development of wireless communication technology, the requirements for broadband antennas are getting higher and higher. Magnetoelectric dipole antennas, with their wide bandwidth, low back radiation, and stable radiation pattern, have gained extensive attention in recent years. At present, magnetoelectric dipole antennas have been widely used in 5G communication systems, base station communication systems and wireless local area networks. [0003] Traditional magnetoelectric dipole antennas mainly radiate linearly polarized waves and cannot radiate circularly polarized waves, but circularly polarized antennas can receive incoming waves from any direction, and can avoid the polarization mismatch problem caused by multipath interference. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q1/48H01Q9/16
CPCH01Q9/16H01Q1/48H01Q1/38H01Q1/36
Inventor 丁康吴艳杰吴多龙刘港
Owner GUANGDONG UNIV OF TECH
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