Miniaturized marine ADS-B / GNSS combined antenna

Abstract

The invention belongs to the technical field of communication, and particularly relates to a miniaturized marine ADS-B / GNSS combined antenna. The miniaturized ADS-B / GNSS combined antenna for the ship comprises a reflecting plate; the sealing radome covers the reflecting plate; the radiation assembly is fixed on the reflecting plate through a first fixing assembly; and the GNSS module is fixed at the upper end of the radiation assembly through a second fixing assembly. The miniaturized ADS-B / GNSS combined antenna for the ship can meet or partially meet the requirements of the ship on small size and high performance of a ship-borne antenna.

Description

Technical Field

[0001] The invention belongs to the technical field of communications, and in particular relates to a miniaturized ship-used ADS-B / GNSS combined antenna. Background Art

[0002] ADS-B technology is a very important communication and monitoring technology in the new navigation system. It organically combines conflict detection, conflict avoidance, conflict resolution, ATC monitoring and ATC consistency monitoring as well as cabin comprehensive information display, enhancing and expanding the new navigation system with very rich functions. GNSS antenna is mainly used as a transmitting antenna in the same frequency repeater system. The antenna consists of a sealed radome, a microstrip radiator, a bottom plate and a high-frequency output socket. It is used as a receiving antenna in GPS navigation and positioning systems. Summary of the invention

[0003] The object of the present invention is to provide a miniaturized shipborne ADS-B / GNSS combined antenna, which is used to solve or partially solve the ship's requirement for small size and high performance of shipborne antennas.

[0004] The present application provides a miniaturized marine ADS-B / GNSS combined antenna. The miniaturized marine ADS-B / GNSS combined antenna comprises:

[0005] Reflective panels;

[0006] A sealed radome is placed on the reflector;

[0007] A radiation component is fixed on the reflection plate by a first fixing component; and

[0008] The GNSS module is fixed on the upper end of the radiation component through the second fixing component.

[0009] In an embodiment of the present application, the radiation component includes a first sheet-type radiation unit and a second sheet-type radiation unit that are orthogonally connected.

[0010] In one embodiment of the present application, a first groove is provided in the middle of the upper end of the first sheet-type radiation unit;

[0011] A second groove is provided in the middle of the lower end of the second sheet-type radiation unit;

[0012] The first sheet-type radiation unit and the second sheet-type radiation unit are plug-connected to each other through the cooperation of the first groove and the second groove.

[0013] In one embodiment of the present application, the first fixing assembly includes four corner pieces and four support bars;

[0014] One end of the corner code piece is fixedly connected to the reflector plate, and the other end is fixedly connected to one side of the first sheet-type radiation unit or the second sheet-type radiation unit through a corresponding support bar.

[0015] In one embodiment of the present application, the support bar is made of epoxy resin.

[0016] In one embodiment of the present application, the second fixing component includes:

[0017] A fixing plate fixed to the upper ends of the first sheet-type radiation unit and the second sheet-type radiation unit; the GNSS module is disposed on the upper surface of the fixing plate; and

[0018] The cross-shaped fixing bracket is covered above the GNSS module; and each leg of the cross-shaped fixing bracket is fixed on the fixing plate.

[0019] In one embodiment of the present application, a plurality of tuning branches are further provided on the reflector.

[0020] In an embodiment of the present application, the tuning branch is arranged in a space between the first sheet-type radiation unit and the second sheet-type radiation unit.

[0021] In one embodiment of the present application, a TNC-K connector is further provided on the lower surface of the reflector; the TNC-K connector is connected to the GNSS module via a connecting line.

[0022] In one embodiment of the present application, a circular hole is provided in the middle of the reflective plate;

[0023] The lower end of the radiation component is provided with a probe which passes through the circular hole on the lower surface of the reflector plate;

[0024] The lower end of the probe is connected to an N-type connector.

[0025] The beneficial effects of the present invention are:

[0026] The miniaturized ship-borne ADS-B / GNSS combination antenna of the present invention comprises: a reflector; a sealed antenna cover, which is placed on the reflector; a radiation component, which is fixed on the reflector by a first fixing component; and a GNSS module, which is fixed to the upper end of the radiation component by a second fixing component. The miniaturized ship-borne ADS-B / GNSS combination antenna of the present invention can solve or partially solve the requirements of ships for small size and high performance of shipborne antennas. It can realize multi-mode GNSS positioning while solving the problems of full coverage of vertical plane angles of ADS-B signals and excessive top indentation angles.

[0027] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a schematic diagram of a miniaturized marine ADS-B / GNSS combined antenna according to a preferred embodiment of the present invention;

[0031] Figure 2 It is an internal schematic diagram of a miniaturized marine ADS-B / GNSS combined antenna according to a preferred embodiment of the present invention;

[0032] Figure 3 is a schematic diagram of assembling a first sheet-type radiation unit and a second sheet-type radiation unit according to a preferred embodiment of the present invention;

[0033] Figure 4 is an internal top view of a miniaturized marine ADS-B / GNSS combined antenna according to a preferred embodiment of the present invention;

[0034] Figure 5 yes Figure 3 A partial enlarged view.

[0035] In the figure:

[0036] Reflecting plate 1, circular hole 11, sealed antenna cover 2, radiation component 3, first sheet-type radiation unit 31, first groove 311, second sheet-type radiation unit 32, second groove 321, probe 33, GNSS module 4, first fixing component 5, corner code piece 51, support bar 52, second fixing component 6, fixing plate 61, cross-shaped fixing bracket 62, tuning branch 7, TNC-K connector 8, N-type connector 9. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present application provides a miniaturized marine ADS-B / GNSS combined antenna, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0039] See also Figure 1 and Figure 2 In one embodiment of the present application, a miniaturized marine ADS-B / GNSS combination antenna includes: a reflector 1; a sealed antenna cover 2, which is covered on the reflector 1; a radiation component 3, which is fixed on the reflector 1 through a first fixing component 5; and a GNSS module 4, which is fixed to the upper end of the radiation component 3 through a second fixing component 6.

[0040] In this embodiment, the GNSS module 4 is fixed to the upper end of the radiation component 3, which can effectively prevent the radiation component from interfering with the reception of GNSS satellite signals.

[0041] In this embodiment, optionally, the radiation component 3 includes a first sheet-type radiation unit 31 and a second sheet-type radiation unit 32 which are orthogonally connected; the first sheet-type radiation unit 31 and the second sheet-type radiation unit 32 are physically and electrically connected.

[0042] In some embodiments, optionally, the dimensions of the first sheet-type radiating unit 31 and the second sheet-type radiating unit 32 and the dimensions of the reflector 1 can be optimized to achieve maximum radiation gain of the antenna in the horizontal 0 degree direction and ensure that the antenna obtains the maximum possible radiation gain above the horizontal plane.

[0043] For details, see the optional assembly method. Figure 3 A first groove 311 is provided in the middle of the upper end of the first sheet-type radiation unit 31; a second groove 321 is provided in the middle of the lower end of the second sheet-type radiation unit 32; the first sheet-type radiation unit 31 and the second sheet-type radiation unit 32 are plug-connected with each other through the cooperation of the first groove 311 and the second groove 321.

[0044] See also Figure 2 and Figure 4As an optional fixing method of the radiation component 3, the first fixing component 5 includes four corner code pieces 51 and four support strips 52; one end of the corner code piece 51 is fixedly connected to the reflection plate 1, and the other end is fixedly connected to one side of the first sheet-type radiation unit 31 or the second sheet-type radiation unit 32 through the corresponding support strip 52.

[0045] Optionally, since the radiation component 3 is cross-shaped, four corner code pieces 51 are respectively set corresponding to the four sides of the radiation component 3; the corner code piece 51 can be an L-shaped aluminum corner code, one end of which is fixedly mounted on the reflective plate, and the other end is used to connect the support bar 52; the support bar 52 can be made of epoxy resin.

[0046] In this embodiment, the corner piece 51, the support bar 52 and the first sheet-type radiation unit 31 or the second sheet-type radiation unit 32 are only physically connected to play a supporting role.

[0047] See also Figure 2 and Figure 4 As an optional fixing method for the GNSS module 4, the second fixing component 6 includes: a fixing plate 61, fixed to the upper ends of the first sheet-type radiation unit 31 and the second sheet-type radiation unit 32; the GNSS module 4 is arranged on the upper surface of the fixing plate 61; and a cross-shaped fixing bracket 62, which is covered above the GNSS module 4; and each leg of the cross-shaped fixing bracket 62 is fixed on the fixing plate 61.

[0048] Optionally, the fixing sheet 61 may be welded and fixed to the upper ends of the first sheet-type radiation unit 31 and the second sheet-type radiation unit 32 .

[0049] Optionally, a plurality of tuning branches 7 are further provided on the reflector 1 .

[0050] For further information, see Figure 4 The tuning branch 7 is arranged in the space between the first sheet-type radiation unit 31 and the second sheet-type radiation unit 32 .

[0051] Furthermore, a TNC-K connector 8 is provided on the lower surface of the reflector 1; the TNC-K connector 8 is connected to the GNSS module 4 via a connecting line. The connecting line may be a coaxial cable.

[0052] For further information, see Figure 5 A circular hole 11 is provided in the middle of the reflecting plate 1 ; a probe 33 is provided at the lower end of the radiation component 3 and passes through the circular hole 11 and out of the lower surface of the reflecting plate 1 ; the lower end of the probe 33 is connected to the N-type connector 9 .

[0053] In this embodiment, the N-type connector 9 can be located in the central area below the reflector 1; the probe 33 can be a metal probe, which is welded with the first sheet-type radiation unit 31 and the second sheet-type radiation unit 32 to achieve electrical and physical connection. The diameter of the circular hole 11 can be 2-3 mm larger than the diameter of the probe 33, which can effectively avoid a short circuit between the reflector 4 and the probe 33.

[0054] In one embodiment, preferably, the number of tuning branches 7 is three; the height of the tuning branches 7 can be 10-20 mm, the width can be 10-15 mm, and the distance from the center of the connector is 15-25 mm; the three inner tuning branches are distributed at 90-degree intervals. The coaxial cables with the GNSS module are distributed in the four quadrants of the radiation unit respectively.

[0055] In this embodiment, better standing wave ratio characteristics can be obtained by adjusting and optimizing the impedance matching of the antenna.

[0056] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0057] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.

[0058] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0059] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A miniaturized marine ADS-B / GNSS combined antenna, characterized in that: include: Reflector (1); A sealed antenna cover (2) is placed on the reflector (1); A radiation component (3) is fixed on the reflection plate (1) via a first fixing component (5); as well as The GNSS module (4) is fixed to the upper end of the radiation component (3) via a second fixing component (6).

2. The miniaturized marine ADS-B / GNSS combined antenna according to claim 1, characterized in that: The radiation component (3) comprises a first sheet-type radiation unit (31) and a second sheet-type radiation unit (32) which are orthogonally connected.

3. The miniaturized marine ADS-B / GNSS combined antenna according to claim 2, characterized in that: A first groove (311) is provided in the middle of the upper end of the first sheet-type radiation unit (31); A second groove (321) is provided in the middle of the lower end of the second sheet-type radiation unit (32); The first sheet-type radiation unit (31) and the second sheet-type radiation unit (32) are plug-connected to each other through the cooperation of the first groove (311) and the second groove (321).

4. The miniaturized marine ADS-B / GNSS combined antenna according to claim 2, characterized in that: The first fixing assembly (5) comprises four corner pieces (51) and four supporting bars (52); One end of the corner code piece (51) is fixedly connected to the reflector plate (1), and the other end is fixedly connected to one side of the first sheet-type radiation unit (31) or the second sheet-type radiation unit (32) via a corresponding support strip (52).

5. The miniaturized marine ADS-B / GNSS combined antenna according to claim 4, characterized in that: The support bar (52) is made of epoxy resin.

6. The miniaturized marine ADS-B / GNSS combined antenna according to claim 2, characterized in that: The second fixing assembly (6) comprises: A fixing plate (61) fixed to the upper ends of the first sheet-type radiation unit (31) and the second sheet-type radiation unit (32); the GNSS module (4) is arranged on the upper surface of the fixing plate (61); and A cross-shaped fixed bracket (62) is arranged above the GNSS module (4); and each leg of the cross-shaped fixed bracket (62) is fixed on the fixing plate (61).

7. The miniaturized marine ADS-B / GNSS combined antenna according to claim 2, characterized in that: The reflector (1) is also provided with a plurality of tuning branches (7).

8. The miniaturized marine ADS-B / GNSS combined antenna according to claim 7, characterized in that: The tuning branch (7) is arranged in the space between the first sheet-type radiation unit (31) and the second sheet-type radiation unit (32).

9. The miniaturized marine ADS-B / GNSS combined antenna according to claim 1, characterized in that: A TNC-K connector (8) is also provided on the lower surface of the reflection plate (1); the TNC-K connector (8) is connected to the GNSS module (4) via a connecting line.

10. The miniaturized marine ADS-B / GNSS combined antenna according to claim 1, characterized in that: A circular hole (11) is provided in the middle of the reflective plate (1); The lower end of the radiation component (3) is provided with a probe (33) which passes through the circular hole (11) and out of the lower surface of the reflection plate (1); The lower end of the probe (33) is connected to an N-type connector (9).

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