MIMO combined antenna

Abstract

The utility model discloses an MIMO (Multiple Input Multiple Output) combined antenna, which comprises at least one metal bottom plate; the antenna housing is fixed on one surface of the metal bottom plate to form a built-in cavity, and the waterproof rubber mat is fixed on the other surface; the antenna outer cover comprises two streamline shells, and the two streamline shells are connected through a connecting part; the built-in cavity is provided with an antenna array, and the antenna array is fixed on the metal bottom plate; the beneficial effects of the utility model are that: it is ensured that the antenna can be normally used in a severe environment and is not affected by the external environment; the contact area with air is reduced, the collision risk is reduced, and the durability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of satellite navigation system and mobile communication, in particular to a MIMO combined antenna. Background Art

[0002] High-speed rail antennas not only ensure the smooth operation of high-speed rail, but also ensure normal communication for passengers on the high-speed rail. Therefore, antennas are indispensable for high-speed rail.

[0003] In order to prevent the arrays of the multi-array antennas on the market from interfering with each other, sufficient gaps must be left between the arrays, and a shell is also needed to protect the antenna vibrator. However, since the ANT-D antenna shell is non-streamlined and has a large contact area with the air, the risk of being hit and broken by foreign objects such as birds and stones is increased, which reduces the durability of the antenna and has a greater risk of damage. Utility Model Content

[0004] The utility model provides a MIMO combined antenna to solve one of the problems raised in the above background technology:

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A MIMO combination antenna, comprising: at least one metal base plate;

[0007] The antenna cover is fixed on one side of the metal bottom plate to form a built-in chamber, and a waterproof rubber pad is fixed on the other side;

[0008] The antenna cover includes two streamlined shells, and the two streamlined shells are connected by a connecting part;

[0009] The built-in chamber is provided with an antenna array, and the antenna array is fixed to the metal bottom plate;

[0010] The antenna cover is used to protect the antenna array from the harsh external environment, and the streamlined design reduces the windward surface and increases the durability of the antenna cover.

[0011] Furthermore: the metal bottom plate is made of aluminum alloy, and a plurality of screw holes are arranged on the edge of the metal bottom plate;

[0012] The antenna cover and the waterproof rubber pad are provided with screw holes corresponding to the screw holes on the metal bottom plate;

[0013] The antenna cover, metal bottom plate and waterproof rubber pad are fixed in sequence.

[0014] Furthermore: the metal bottom plate is also provided with a hole for passing the wire sheath, and the waterproof rubber pad is provided with a hole corresponding to the hole on the metal bottom plate;

[0015] The wire sheath is used to protect and pass through the radio frequency coaxial line, one end of the radio frequency coaxial line is connected to the antenna array, and the other end of the radio frequency coaxial line is welded with a radio frequency connector;

[0016] When communication is needed, the device connects to the internal antenna element from the welded RF connector port under the metal base plate to communicate normally.

[0017] Further: the material selected for the antenna cover is Peek polyetheretherketone material;

[0018] The connection part is provided with a GNSS positioning array, and the height of the connection part is lower than the height of the streamlined housing;

[0019] The material used is Peek polyetheretherketone material, which enhances firmness and durability, and the connection part is lower than the height of the streamlined shell to reduce wind resistance.

[0020] Further: two 4G data communication arrays and one WiFi communication array are arranged in the streamlined housing;

[0021] Each streamlined shell is distributed with an equal number of data communication arrays and WiFi communication arrays, so that the arrays do not interfere with each other and leave enough gaps, while also making rational use of space and avoiding the shell from occupying too much space.

[0022] Furthermore: the antenna array is a combined antenna array integrated with four 4G data communication arrays, two WiFi communication arrays and one GNSS positioning array.

[0023] The beneficial effects of the utility model are:

[0024] Ensure that the antenna can be used normally in harsh environments and is not affected by the external environment; reduce the contact area with the air, reduce the risk of impact, and improve durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0027] Figure 2 It is a top cross-sectional schematic diagram of the utility model;

[0028] Figure 3 It is a side view schematic diagram of the utility model;

[0029] Figure 4 It is a front view schematic diagram of the utility model.

[0030] In the figure: 1. 4G data communication array; 2. WiFi communication array; 3GNSS positioning array; 4. Wire protection sleeve; 5. Antenna cover; 6. Metal base plate; 7. Waterproof rubber pad; 8. RF connector; 9. Streamlined housing; 10. Connecting part. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] The present invention is limited only by the claims and their full scope and equivalents. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be an installed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figure 1 to Figure 4 , which are respectively a three-dimensional schematic diagram, a top cross-sectional schematic diagram, a side schematic diagram and a front schematic diagram of the utility model;

[0036] It includes a metal base plate 6; an antenna cover 5 is fixed on one side of the metal base plate 6 to form a built-in chamber, and a waterproof rubber pad 7 is fixed on the other side; the antenna cover 5 includes two streamlined shells 9, and the two streamlined shells 9 are connected by a connecting part 10; an antenna array is set in the built-in chamber, and the antenna array is fixed to the metal base plate 6.

[0037] Specifically:

[0038] The metal base plate 6 is made of aluminum alloy, and a plurality of screw holes are arranged on the edge of the metal base plate 6; the antenna cover 5 and the waterproof rubber pad 7 are provided with screw holes corresponding to the screw holes on the metal base plate 6; the antenna cover 5, the metal base plate 6 and the waterproof rubber pad 7 are fixed in sequence by screws; the metal base plate 6 is also provided with a hole for passing through the protective sleeve 4, and the waterproof rubber pad 7 is provided with a hole corresponding to the hole on the metal base plate 6; the protective sleeve 4 is used to protect and pass through the RF coaxial line, one end of the RF coaxial line is connected to the antenna array, and the other end of the RF coaxial line is welded with a RF connector 8. When communication is required, the device is connected to the internal antenna vibrator from the port of the welded RF connector 8 under the metal base plate, and normal communication can be achieved; the material of the antenna cover 5 is Peek polyetheretherketone material; the connecting part 10 is a hollow structure, which is used to set the GNSS positioning array 3, and the height of the connecting part 10 is lower than the streamlined structure. The shell 9 is made of Peek polyetheretherketone material to enhance its firmness and durability. The connecting part is lower than the streamlined shell height, and the structure has less wind resistance when the locomotive is running. Two 4G data communication arrays 1 and one WiFi communication array 2 are arranged in the streamlined shell 9. The two 4G data communication arrays 1 are respectively arranged at the two ends of the streamlined shell 9, and the WiFi communication array 2 is arranged in the middle of the streamlined shell 9. The beneficial effect is that each streamlined shell is distributed with an equal number of data communication arrays and WiFi communication arrays, so that the arrays do not interfere with each other and leave enough gaps, and the space is used reasonably to avoid the shell occupying too much space. The antenna array is a combined antenna array integrated with four 4G data communication arrays 1, two WiFi communication arrays 2 and one GNSS positioning array 3 to meet the communication needs of the locomotive.

[0039] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A MIMO combination antenna, characterized in that: include: at least one metal base plate (6); The metal bottom plate (6) has one side for fixing the antenna cover (5) to form a built-in chamber, and the other side for fixing the waterproof rubber pad (7); The antenna cover (5) comprises two streamlined shells (9), and the two streamlined shells (9) are connected via a connecting portion (10); The built-in chamber is provided with an antenna array, and the antenna array is fixed to the metal bottom plate (6).

2. A MIMO combined antenna according to claim 1, characterized in that: The metal bottom plate (6) is made of aluminum alloy material, and a plurality of screw holes are arranged at the edge of the metal bottom plate (6); The antenna cover (5) and the waterproof rubber pad (7) are provided with screw holes corresponding to the screw holes on the metal bottom plate (6); The antenna cover (5), the metal base plate (6) and the waterproof rubber pad (7) are fixed in sequence.

3. A MIMO combined antenna according to claim 2, characterized in that: The metal bottom plate (6) is also provided with a hole for passing the wire sheath (4), and the waterproof rubber pad (7) is provided with a hole corresponding to the hole on the metal bottom plate (6); The wire sheath (4) is used to protect and pass through a radio frequency coaxial line, one end of the radio frequency coaxial line is connected to an antenna element, and the other end of the radio frequency coaxial line is welded to a radio frequency connector (8).

4. The MIMO combined antenna according to claim 1, characterized in that: The material of the antenna cover (5) is Peek polyetheretherketone material; The connection part (10) is provided with a GNSS positioning array (3), and the height of the connection part (10) is lower than the height of the streamlined housing (9).

5. A MIMO combined antenna according to claim 4, characterized in that: Two 4G data communication arrays (1) and one WiFi communication array (2) are arranged in the streamlined housing (9).

6. The MIMO combined antenna according to claim 1, characterized in that: The antenna array is a combined antenna array that integrates four 4G data communication arrays (1), two WiFi communication arrays (2) and one GNSS positioning array (3).

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