A broadband dual-polarized array antenna

Abstract

This invention provides a broadband dual-polarized array antenna, including an antenna body composed of multiple metal vibrating antenna elements arranged in an array. Each metal vibrating antenna element has a signal unit mounted on it. Each metal vibrating antenna element includes a reflective base plate. The signal unit includes a dual-polarized metal vibrating element, a directional antenna, and a BMA RF connector. The dual-polarized metal vibrating element and the directional antenna are located on the front side of the reflective base plate, and the BMA RF connector is located on the back side of the reflective base plate. This invention achieves dual polarization and miniaturization of the array antenna while reducing structural complexity and size.

Description

Technical Field

[0001] This application relates to an antenna, and more particularly to a broadband dual-polarized array antenna. Background Technology

[0002] An antenna is a transducer that transforms guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium, or vice versa. An array antenna, on the other hand, is a special type of antenna consisting of at least two antenna elements arranged regularly or randomly and subjected to appropriate excitation to achieve predetermined radiation characteristics.

[0003] With the continuous improvement of technology and the rapid development of the communications industry, the requirements for dual-polarized antennas are becoming increasingly stringent. Current array antenna technology typically achieves dual polarization through overlapping designs. This design makes it difficult to achieve wide bandwidth, and some designs are complex and bulky when structurally broken down into individual units. Utility Model Content

[0004] The purpose of this application is to provide a broadband dual-polarized array antenna that achieves dual polarization and miniaturization of the array antenna while reducing structural complexity and volume.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] This application provides a broadband dual-polarized array antenna, including an antenna body composed of multiple metal vibrator antenna elements arranged in an array to form the antenna body. Each metal vibrator antenna element has a signal element. Each metal vibrator antenna element includes a reflective base plate. The signal element includes a dual-polarized metal vibrator, a directional antenna, and a BMA RF connector. The front side of the reflective base plate has the dual-polarized metal vibrator and the directional antenna, and the back side of the reflective base plate has the BMA RF connector.

[0007] The front of the reflective base plate is provided with a support, and the dual-polarized metal oscillator is fastened to the support with screws.

[0008] The directional antenna is fastened to the support with screws and fixing posts, and the support is fastened to the reflector base plate with screws.

[0009] The guiding antenna is positioned in the middle of the dual-polarized metal vibrator, and the dual-polarized metal vibrator is pressed onto the support.

[0010] The BMA RF connector includes a first BMA RF connector for inputting a horizontally polarized signal to the antenna and a second BMA RF connector for inputting a vertically polarized signal to the antenna. The first BMA RF connector and the second BMA RF connector are fastened to the reflector base plate by screws.

[0011] The ends of the first BMA RF connector and the second BMA RF connector pass through the reflective base plate, the support, and the dual-polarized metal oscillator in sequence.

[0012] The metal vibrator antenna element is provided with 72 elements, which are arranged in an 8*9 array.

[0013] The dual-polarized metal oscillator is made of aluminum alloy 6063-T6, and each dual-polarized metal oscillator has four polarized oscillator arms at equal intervals.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This array antenna is designed using metal dipole antennas. The design primarily utilizes overlapping metal dipole antennas to radiate horizontally and vertically polarized signals in the 0.8-2 GHz range while maintaining a relatively constant antenna envelope size. Furthermore, the synthesized circularly polarized signal achieves a low axial ratio. Metal dipole antennas are relatively small and compact, making them suitable for applications requiring good directivity and performance. By using metal dipole antennas as the array's antenna elements, the problem of achieving dual polarization and miniaturization of the array antenna can be solved while reducing structural complexity and size. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0018] Figure 2 This is a front view of the metal vibrator antenna element according to an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the back of the metal vibrator antenna element according to an embodiment of this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] like Figures 1 to 3 As shown, the purpose of this application is to provide a broadband dual-polarized array antenna, including an antenna body 1. The antenna body 1 is composed of multiple metal vibrator antenna elements 2, which are arranged in an array to form the antenna body. A signal element 3 is provided on the metal vibrator antenna element 2. The metal vibrator antenna element 2 includes a reflective base plate 4. The signal element 3 includes a dual-polarized metal vibrator 6, a directing antenna 7, and a BMA RF connector. The dual-polarized metal vibrator 6 and the directing antenna 7 are provided on the front side of the reflective base plate 4, and the BMA RF connector is provided on the back side of the reflective base plate 4.

[0023] The front of the reflective base plate 4 is provided with a support 5, and the dual-polarized metal oscillator 6 is fastened to the support 5 by screws.

[0024] The guiding antenna 7 is fastened to the support 5 with screws and fixing posts, and the support 5 is fastened to the reflector plate 4 with screws.

[0025] The guiding antenna 7 is positioned in the middle of the dual-polarized metal vibrator 6, and the dual-polarized metal vibrator 6 is pressed onto the support 5.

[0026] The BMA RF connector includes a first BMA RF connector 8 for inputting horizontally polarized signals to the antenna and a second BMA RF connector 9 for inputting vertically polarized signals to the antenna.

[0027] The first BMA RF connector 8 and the second BMA RF connector 9 are fastened to the reflective base plate 4 by screws.

[0028] The ends of the first BMA RF connector 8 and the second BMA RF connector 9 pass through the reflective base plate 4, the support 5 and the dual-polarized metal oscillator 6 in sequence.

[0029] The metal vibrator antenna element 2 is provided with 72 elements, which are arranged in an 8*9 array.

[0030] The dual-polarized metal oscillator 6 is made of aluminum alloy 6063-T6. Each dual-polarized metal oscillator 6 has four polarized oscillator arms at equal intervals to ensure structural strength.

[0031] In practical use, first place the array antenna in the correct mounting position, then tighten the bolts on the reflector base plate to secure it. The power generating device can radiate a horizontally polarized signal of 0.8-2 GHz by inputting it to the antenna through the first BMA RF connector 8, and a vertically polarized signal of 0.8-2 GHz by inputting it to the antenna through the second BMA RF connector 9.

[0032] Compared with existing array antennas, this invention has the following advantages: the array antenna structure of this invention is simple, and dual polarization is achieved directly through the overlapping metal dipole antenna structure; compared with other dual polarization array antennas, it is easier to process and the antenna is more compact, with miniaturization advantages.

[0033] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A wideband dual-polarized array antenna, characterized by, The antenna body includes a main body composed of multiple metal vibrating antenna elements arranged in an array to form the main body. Each metal vibrating antenna element has a signal unit. Each metal vibrating antenna element includes a reflective base plate. The signal unit includes a dual-polarized metal vibrating element, a directional antenna, and a BMA RF connector. The front side of the reflective base plate has the dual-polarized metal vibrating element and the directional antenna, and the back side of the reflective base plate has the BMA RF connector.

2. The wideband dual-polarized array antenna according to claim 1, wherein, The front of the reflective base plate is provided with a support, and the dual-polarized metal oscillator is fastened to the support with screws.

3. The wideband dual-polarized array antenna according to claim 2, wherein, The directional antenna is fastened to the support with screws and fixing posts, and the support is fastened to the reflector base plate with screws.

4. The wideband dual-polarized array antenna according to claim 3, wherein, The guiding antenna is positioned in the middle of the dual-polarized metal vibrator, and the dual-polarized metal vibrator is pressed onto the support.

5. The wideband dual-polarized array antenna according to claim 3, wherein, The BMA RF connector includes a first BMA RF connector for inputting horizontally polarized signals to the antenna and a second BMA RF connector for inputting vertically polarized signals to the antenna. The first BMA RF connector and the second BMA RF connector are fastened to the reflective base plate by screws.

6. The wideband dual-polarized array antenna according to claim 5, characterized in that, The ends of the first BMA RF connector and the second BMA RF connector pass through the reflective base plate, the support, and the dual-polarized metal oscillator in sequence.

7. The wideband dual-polarized array antenna of claim 1, wherein, The metal vibrator antenna element is provided with 72 elements, which are arranged in an 8*9 array.

8. The wideband dual-polarized array antenna of claim 1, wherein, The dual-polarized metal oscillator is made of aluminum alloy 6063-T6, and each dual-polarized metal oscillator has four polarized oscillator arms at equal intervals.

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