Broadband dual-polarized oscillator structure

Abstract

The utility model relates to the technical field of antennas, in particular to a broadband dual-polarized oscillator structure. The round through holes are formed in the middle position of the balun base, the medium fixing pieces are partially installed in the round through holes of the balun base, four sets of round through holes are evenly formed in the balun base from the center point position to the periphery, a plurality of radiating surfaces are arranged on the end face of the balun base, and the radiating surfaces are arranged on the periphery of the balun base. Each group of radiating surfaces respectively correspond to one group of circular through holes, the radiating surfaces are drop-shaped and are hollowed out, and an upper feed sheet and a lower feed sheet are embedded in the medium fixing piece and are arranged in an up-and-down staggered manner. The beneficial effects of the utility model are that the whole structure of the technical scheme is symmetrically arranged, so that the impedance is basically consistent, the drop-shaped smooth structure radiation surface is adopted, the surface current reflection is reduced, the bandwidth is increased, the coupling degree between two polarizations is reduced, and the isolation degree is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a broadband dual-polarized dipole structure. Background Art

[0002] With the continuous development of mobile communication in China, the antenna feed resources are becoming increasingly tense. To alleviate the problem of resource shortage, the demand for broadband antennas is increasing day by day.

[0003] Traditional broadband dual-polarized dipoles use a square radiation surface and are fed with an asymmetric structure. The coupling degree between the two polarizations is relatively large, the isolation degree is relatively low, and the impedance consistency of the two polarizations is poor when fed with an asymmetric structure.

[0004] Therefore, it is necessary to design a broadband dual-polarized dipole structure to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a broadband dual-polarized dipole structure to overcome the above-mentioned deficiencies existing in the current prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A broadband dual-polarized dipole structure includes a balun base, a circular through-hole disposed in the middle position of the balun base, and a dielectric fixing member partially installed in the circular through-hole of the balun base. Four groups of circular through-holes are uniformly arranged around the center point of the balun base. A plurality of radiation surfaces are disposed on the end face of the balun base, and each group of radiation surfaces corresponds to a group of circular through-holes. The radiation surfaces are in a water-drop shape and are hollow inside. An upper feeding sheet and a lower feeding sheet are also embedded on the dielectric fixing member, and the upper feeding sheet and the lower feeding sheet are arranged in a staggered manner up and down.

[0008] Preferably, the upper feeding sheet is disposed above the lower feeding sheet, and the two ends of the upper feeding sheet and the lower feeding sheet are respectively disposed in different circular through-holes.

[0009] Preferably, grooves and protrusions are disposed on the side surfaces of the radiation surfaces, and the grooves and protrusions on the side surfaces of adjacent radiation surfaces are arranged in a staggered manner.

[0010] Preferably, the radiation surfaces are symmetrically arranged with the balun base as the center point of symmetry.

[0011] The beneficial effect of the utility model is that the overall structure of the technical solution is symmetrically arranged, so that the impedance is basically the same. The water-drop-shaped smooth structure radiation surface is adopted to reduce the surface current reflection, increase the bandwidth, reduce the coupling degree between the two polarizations, and increase the isolation degree. Description of the Drawings

[0012] Figure 1 This is a schematic structural diagram of a broadband dual-polarized dipole structure of the present utility model;

[0013] In the figure: 1. Upper feed sheet; 2. Lower feed sheet; 3. Dielectric fixing member; 4. Radiation surface; 5. Balun base. Specific embodiments

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0016] Referring to Figure 1 , a broadband dual-polarized dipole structure, which includes a balun base 5, a circular through hole in the middle position of the balun base, and a dielectric fixing member 3 partially installed in the circular through hole of the balun base;

[0017] Four groups of circular through holes are evenly arranged around the center point on the balun base. A plurality of radiation surfaces 4 are arranged on the end face of the balun base. Each group of radiation surfaces corresponds to a group of circular through holes. The radiation surfaces are in a water droplet shape and are hollow inside;

[0018] An upper feed sheet 1 and a lower feed sheet 2 are also embedded on the dielectric fixing member 3, and the upper feed sheet 1 and the lower feed sheet 2 are arranged in a staggered manner up and down. The upper feed sheet 1 is placed above the lower feed sheet 2, and the two ends of the upper feed sheet 1 and the lower feed sheet 2 are respectively placed in different circular through holes;

[0019] In order to prevent the radiation surfaces from affecting each other when installing the radiation surfaces, grooves and protrusions are arranged on the side surfaces of the radiation surfaces, and the grooves and protrusions on the side surfaces of adjacent radiation surfaces are arranged in a staggered manner. Taking the balun base as the center point as the symmetry point, the radiation surfaces are symmetrically arranged with each other.

[0020] The beneficial effects of the present utility model are as follows. The overall structure of this technical solution is symmetrically arranged, so that the impedance is basically the same. The radiation surface adopts a water-drop-shaped smooth structure, which reduces the surface current reflection, increases the bandwidth, reduces the coupling degree between two polarizations, and increases the isolation degree.

[0021] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A broadband dual-polarization oscillator structure, characterized in that: It includes a balun base, a circular through hole placed in the middle position of the balun base, and a dielectric fixing piece partially installed in the circular through hole of the balun base. Four groups of circular through holes are evenly arranged on the balun base from the center point position to the surrounding area. A plurality of radiation surfaces are arranged on the end surface of the balun base, and each group of radiation surfaces corresponds to a group of circular through holes. The radiation surface is drop-shaped and hollowed out inside. An upper feed plate and a lower feed plate are also inlaid on the dielectric fixing piece, and the upper feed plate and the lower feed plate are staggered up and down.

2. A broadband dual-polarization oscillator structure according to claim 1, characterized in that: The upper feed plate is placed above the lower feed plate, and two ends of the upper feed plate and the lower feed plate are placed in different circular through holes respectively.

3. The broadband dual-polarization oscillator structure according to claim 1, characterized in that: Grooves and protrusions are arranged on the side surfaces of the radiation surface, and the grooves and protrusions on the side surfaces of adjacent radiation surfaces are arranged alternately.

4. The broadband dual-polarization oscillator structure according to claim 1, characterized in that: The balun base is taken as a center point and a symmetry point, and the radiation surfaces are arranged symmetrically with each other.

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