Dual-polarized oscillator unit and antenna

Abstract

The utility model discloses a dual-polarized oscillator unit and an antenna. The dual-polarized oscillator unit comprises a bottom plate, an oscillator support and an antenna oscillator unit, the antenna oscillator unit is arranged on the front surface of the bottom plate through the oscillator support, and the antenna oscillator unit is of a cross dual-polarization structure. The broadband high-gain antenna not only has excellent performance in the aspects of broadband, high gain, polarization isolation and electromagnetic performance, but also has the characteristics of simplicity in assembly, high efficiency in production and stable structure, and provides a high-performance, economical and efficient antenna solution for a modern wireless communication system.

Description

Technical Field

[0001] This utility model relates to a, specifically to a dual-polarized vibrator element and antenna. Background Technology

[0002] As mobile communication evolves from 2G to 5G, base station antennas have undergone several development stages, from omnidirectional antennas to directional dual-polarized antennas, electrically tunable single-polarized antennas, electrically tunable dual-polarized antennas, and then to dual-band / multi-band electrically tunable dual-polarized antennas and MIMO antennas. In the 5G era, with new demands for frequency and low power consumption, active antennas and Massive MIMO antennas for 5G base stations have become new technological directions. However, in terms of large-scale practical applications, 4G+5G hybrid networking is gradually becoming the main player in the mobile communication base station market, achieving both wide coverage and coverage of key areas, resulting in economic efficiency. Dual-polarized antennas offer many advantages, such as reducing the number of antennas, lowering infrastructure investment, and improving polarization diversity gain. Multi-band, multi-channel antennas are the main focus of market demand. With the maturity of technology and processes, product costs are facing significant pressure. How to reduce costs without compromising performance presents new challenges for designers. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a dual-polarized vibrator unit and antenna to solve the problems existing in the background art.

[0004] The present invention relates to a dual-polarized vibrator unit and antenna, which is achieved through the following technical solution, including a base plate, a vibrator support, and an antenna vibrator unit.

[0005] The antenna element is mounted on the front of the base plate by means of an element support, and the antenna element has a cross-shaped dual-polarization structure.

[0006] As a preferred technical solution, the antenna element unit includes an element arm, a PCB substrate, and a grounding layer;

[0007] The oscillator arm is disposed on the front side of the PCB substrate, and the two oscillator arms constitute a dual-polarized radiation unit. The oscillator arm has a planar structure and is approximately heart-shaped. The ground layer is disposed on the back side of the PCB substrate.

[0008] As a preferred technical solution, the antenna vibrator elements are connected by a feed bridge, and the feed bridge is connected to one end of the vibrator arm.

[0009] As a preferred technical solution, an L-shaped grounding component is provided on the oscillator support, with one end of the L-shaped grounding component connected to the outer conductor of the coaxial line and the other end connected to the grounding layer, forming a U-shaped balun structure.

[0010] As a preferred technical solution, the L-shaped grounding component is equipped with a coaxial feed line, and the antenna element is fed through the coaxial feed line.

[0011] A high-gain antenna includes a high-gain antenna; the high-gain antenna is composed of an array of dual-polarized dipole elements.

[0012] The beneficial effects of this utility model are:

[0013] This invention not only excels in wide bandwidth, high gain, polarization isolation, and electromagnetic performance, but also features simple assembly, high production efficiency, and stable structure, providing a high-performance and cost-effective antenna solution for modern wireless communication systems. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 and Figure 2 This is a schematic diagram of the antenna vibrator unit structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0017] Explanation of reference numerals in the attached figures

[0018] 1. Base plate; 2. Vibrator support; 3. Vibrator arm; 4. PCB substrate; 5. Grounding layer; 6. L-shaped grounding component; 7. Feeder line. Detailed Implementation

[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0020] A half-wave dipole antenna consists of two straight conductors of equal diameter and length, each conductor being 1 / 4 of the operating wavelength. A half-wave dipole antenna is a type of dipole antenna characterized by its length being equal to half the wavelength at the operating frequency. The total length of the two dipole arms is half the wavelength, thus forming a half-wave dipole. The cross-shaped half-wave dipole is the basic unit for achieving dual polarization of the antenna. Because the phase centers of the two polarizations coincide and the electric fields are orthogonal at 90 degrees, it has good polarization isolation. The impedance bandwidth of the dipole depends on the shape of the dipole arms; generally, the larger the diameter of the dipole, the better the impedance bandwidth. Due to structural limitations, planar structures are often used instead of cylindrical structures for the dipole arms. In planar structures, the aspect ratio of the dipole arms determines the impedance bandwidth.

[0021] like Figure 1 and Figure 2 As shown, a dual-polarized vibrator unit of this utility model includes a base plate 1, a vibrator support 2, and an antenna vibrator unit.

[0022] The antenna vibrator unit is mounted on the front of the base plate 1 via the vibrator support 2, and the antenna vibrator unit has a cross-shaped dual-polarization structure.

[0023] The antenna vibrator unit includes vibrator arm 3, PCB substrate 4 and ground layer 5;

[0024] The vibrating arm 3 is disposed on the front side of the PCB substrate 4, and two vibrating arms 3 constitute a dual-polarized radiation unit. The vibrating arm 3 is a planar structure with a shape approximately like a heart ring. The ground layer 5 is disposed on the back side of the PCB substrate 4.

[0025] The antenna vibrator elements are connected by a feed bridge, and the feed bridge is connected to one end of the vibrator arm 3.

[0026] In addition, an L-shaped grounding component 6 is provided on the oscillator support 2, and one end of the L-shaped grounding component 6 is connected to the coaxial outer conductor, and the other end is connected to the grounding layer 5, forming a U-shaped balun structure.

[0027] Dipole antennas are typically balanced antennas, while their feed lines are coaxial cables, which are unbalanced transmission lines. If these are directly connected, high-frequency current will flow through the outer sheath of the coaxial cable. This high-frequency current will inevitably have a radiation component, which may even affect the antenna's polarization direction and cross-polarization performance. Typically, dipole antennas use a U-shaped balun for balanced-to-unbalanced conversion, with the balun grounded to act as a support. The height of the balun is 1 / 4 wavelength.

[0028] like Figure 2As shown, a coaxial feed line 7 is provided on the L-shaped grounding component 6, and the antenna element is fed through the coaxial feed line 7; the two coaxial feed lines 7 feed the two polarizations respectively; wherein, the L-shaped grounding component 6 is directly connected to one end of the element arm, the other end of the element arm is connected to the outer conductor of the coaxial line, and the inner conductor is connected to the front feed bridge.

[0029] This utility model discloses a high-gain antenna, which is composed of a dual-polarized dipole element array. The array of multiple dipole elements achieves wide bandwidth and high gain performance. Printed circuit board processing improves dimensional consistency. The assembly structure is simple, improving production efficiency.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A dual-polarized oscillator unit, characterized in that: It includes a base plate (1), a vibrator support (2), and an antenna vibrator unit; The antenna vibrator unit is mounted on the front of the base plate (1) via a vibrator support (2), and the antenna vibrator unit has a cross-shaped dual-polarization structure.

2. The dual-polarized oscillator unit according to claim 1, characterized in that: The antenna vibrator unit includes a vibrator arm (3), a PCB substrate (4), and a grounding layer (5); The oscillator arm (3) is disposed on the front side of the PCB substrate (4), and the two oscillator arms (3) constitute a dual-polarized radiation unit. The oscillator arm (3) is a planar structure with a shape approximately heart-shaped ring. The ground layer (5) is disposed on the back side of the PCB substrate (4).

3. The dual-polarized oscillator unit according to claim 1, characterized in that: The antenna vibrator unit is connected by a feed bridge, and the feed bridge is connected to one end of the vibrator arm (3).

4. The dual-polarized oscillator unit according to claim 1, characterized in that: An L-shaped grounding component (6) is provided on the oscillator support (2), and one end of the L-shaped grounding component (6) is connected to the coaxial outer conductor, and the other end is connected to the grounding layer (5), forming a U-shaped balun structure.

5. The dual-polarized oscillator unit according to claim 4, characterized in that: The L-shaped grounding component (6) is provided with a coaxial feed line (7), and the antenna element is fed through the coaxial feed line (7).

6. A high-gain antenna, characterized in that: It includes a high-gain antenna; the high-gain antenna is composed of an array of dual-polarized dipole elements as described in any one of claims 1 to 5.

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