Airborne communication antenna

Abstract

The utility model discloses an airborne communication antenna, comprising an antenna base plate used for installing and fixing an antenna; a radio frequency connecting hole and a plurality of fixing holes are formed in the antenna bottom plate, and the radio frequency connecting hole is used for mounting a radio frequency connector; the protective cover is mounted at the upper end of the antenna bottom plate, and the protective cover is detachably connected with the antenna bottom plate through the fixing holes; the antenna base plate and the protective cover are connected to form an antenna area, and the broadband antenna is installed in the antenna area and is connected with the radio frequency connector. And the problem of influence between the size and the bandwidth of the airborne antenna is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to communication antenna technical field, concretely is airborne communication antenna. BACKGROUND

[0002] Airborne antenna technology develops rapidly, its flight height promotes, speed becomes fast, and flight environment also becomes more and more complex, and the requirement of airborne communication antenna gradually improves.From the angle of electromagnetics, the shape and size of antenna can control the direction and intensity of electromagnetic radiation. For example, through reasonable antenna layout and shape optimization, antenna can concentrate emission and reception signal in a particular direction, thereby improving the transmission efficiency of signal. Bandwidth is one of the obvious short boards. Nowadays, data transmission volume shows explosive growth, and people expect to realize functions such as high-definition video call, real-time data monitoring and the like in the air. However, the existing data link antenna has limited bandwidth. Like a narrow road, it is difficult to bear the rapidly growing traffic. In some traditional antenna designs, the high-frequency band has a narrow bandwidth, which makes it impossible to meet the communication demand of large data volume. When it is necessary to transmit high-definition map data or a large amount of monitoring data of aircraft system, the problem of insufficient bandwidth will be highlighted, resulting in slow transmission speed or even failure to complete the transmission task. SUMMARY

[0003] The present application provides an airborne communication antenna, comprising:

[0004] An antenna bottom plate for installing and fixing the antenna;

[0005] A radio frequency connection hole and a plurality of fixing holes are arranged on the antenna bottom plate, and the radio frequency connection hole is used for installing a radio frequency connector;

[0006] A protective cover is installed at the upper end of the antenna bottom plate, and the protective cover is detachably connected with the antenna bottom plate through the fixing holes;

[0007] The antenna bottom plate and the protective cover form an antenna area after being connected,

[0008] A wideband antenna is installed inside the antenna area, and the wideband antenna is connected with the radio frequency connector.

[0009] Optionally, the antenna bottom plate is connected with the fuselage.

[0010] Optionally, the wideband antenna is a printed circuit board, and the printed circuit board is a right trapezoid.

[0011] Optionally, the printed circuit board is composed of a copper-clad surface and a non-copper-clad surface, the cross-sectional shape of the non-copper-clad surface is arranged in an inverted umbrella shape, and the copper-clad surface is the remaining area of the printed circuit board except the non-copper-clad surface.

[0012] Optionally, the cable is arranged on the copper-coated surface in a bending manner.

[0013] Optionally, the radio frequency connecting hole extends into the copper-coated surface, so that the copper-coated surface is in contact with the radio frequency connector.

[0014] Optionally, the printed circuit board is connected with the radio frequency connector through a wire.

[0015] Optionally, the outer surface of the wire is silver-plated.

[0016] Optionally, the antenna bottom plate is made of insulating material.

[0017] The beneficial effects of the present application are as follows:

[0018] The structure of the present application provides a printed circuit board, a copper-coated area is arranged on the printed circuit board, and a cable is arranged on the copper-coated area, so that the bandwidth of the antenna is enhanced, and the copper-coated area is in contact with the radio frequency connector, thereby ensuring the electromagnetic performance of the radio frequency area, and reducing the volume and expanding the bandwidth. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a cross-sectional view of an airborne communication antenna provided by the present application;

[0020] Figure 2 FIG. 2 is a top view of the airborne communication antenna provided by the present application;

[0021] In the drawings: 1, antenna bottom plate; 2, radio frequency connecting hole; 3, fixing hole; 4, radio frequency connector; 5, protective cover; 6, broadband antenna; 7, printed circuit board; 8, copper-coated surface; 9, non-copper-coated surface; 10, cable; 11, wire. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figure 1 The present application provides an airborne communication antenna, which comprises:

[0024] An antenna bottom plate 1 is used for mounting and fixing the antenna.

[0025] The antenna bottom plate 1 is connected with the fuselage.

[0026] A protective cover 5 is installed on the upper end of the antenna base plate 1, and the protective cover 5 is detachably connected with the antenna base plate 1 through the fixing hole 3.

[0027] The antenna base plate 1 is provided with a radio frequency connecting hole 2 and several fixing holes 3, and the radio frequency connecting hole 2 is used for installing a radio frequency connector 4.

[0028] In this embodiment, the fixing hole 3 is provided with four, which are respectively arranged at the four corners of the fixing hole 3, and the fixing hole 3 forms a detachable connection between the protective cover 5 and the antenna base plate 1 through bolts.

[0029] The antenna base plate 1 and the protective cover 5 form an antenna area after being connected, and the antenna area is used for installing a printed circuit board 7.

[0030] A wideband antenna 6 is installed inside the antenna area, and the wideband antenna 6 is connected with the radio frequency connector 4.

[0031] The wideband antenna 6 is a printed circuit board 7, and the printed circuit board 7 is a right trapezoid.

[0032] The printed circuit board 7 is composed of a copper cladding surface 8 and a non-copper cladding surface 9, and the cross-sectional shape of the non-copper cladding surface 9 is arranged in an inverted umbrella shape, and the copper cladding surface 8 is the remaining area on the printed circuit board 7 except the non-copper cladding surface 9.

[0033] The cable 10 is arranged on the copper cladding surface 8 in a bending manner, and the cable 10 is printed on the copper cladding surface 8 to densely arrange the copper cladding surface 8, so that the cable 10 forms a wideband antenna on the copper cladding surface 10.

[0034] The radio frequency connecting hole 2 extends into the copper cladding surface 8, so that the copper cladding surface 8 is in contact with the radio frequency connector 4.

[0035] The printed circuit board 7 is connected with the radio frequency connector 4 through a wire 11.

[0036] The outer surface of the wire 11 is silver-plated.

[0037] The antenna base plate 1 is made of insulating material.

[0038] It is worth noting that in this embodiment, the working frequency band of the wideband antenna 6 is 108-174MHz and 225-400MHz, and the printed circuit board 7 is made of a sheet-shaped guide plate and connected with a matching element, and the matching element is the radio frequency connector 4, so that the current distribution is approximately a traveling wave, and a set of resistance elements are connected at a proper height of the sheet-shaped folded antenna to form a loaded antenna.

[0039] Wherein, the sheet folding is properly adjusted, that is, the transition matching angle of the coaxial line and the radiation sheet is adjusted, which can be used to expand the frequency band.

[0040] The above is only a few embodiments of the present application, and does not limit the present application in any form. Although the preferred embodiments are disclosed above, the present application is not limited thereto. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, which are equivalent to equivalent embodiments and belong to the scope of the technical solutions.

Claims

1. An airborne communication antenna, characterized in that, include: Antenna base plate (1) is used for mounting and fixing the antenna; The antenna base plate (1) is provided with a radio frequency connection hole (2) and several fixing holes (3), and the radio frequency connection hole (2) is used to install radio frequency connectors (4). A protective cover (5) is installed on the upper end of the antenna base plate (1), and the protective cover (5) is detachably connected to the antenna base plate (1) through the fixing hole (3); The antenna base plate (1) and the protective cover (5) are connected to form the antenna area. A broadband antenna (6) is installed inside the antenna area, and the broadband antenna (6) is connected to the radio frequency connector (4).

2. The airborne communication antenna according to claim 1, characterized in that, The antenna base plate (1) is connected to the fuselage.

3. The airborne communication antenna according to claim 1, characterized in that, The broadband antenna (6) is a printed circuit board (7), and the printed circuit board (7) is trapezoidal.

4. The airborne communication antenna according to claim 3, characterized in that, The printed circuit board (7) consists of a copper-clad surface (8) and a non-copper-clad surface (9). The cross-sectional shape of the non-copper-clad surface (9) is an inverted umbrella shape. The copper-clad surface (8) is the remaining area on the printed circuit board (7) excluding the non-copper-clad surface (9).

5. The airborne communication antenna according to claim 4, characterized in that, The copper-clad surface (8) is bent and arranged with cables (10).

6. The airborne communication antenna according to claim 5, characterized in that, The radio frequency connection hole (2) extends into the copper-clad surface (8) so that the copper-clad surface (8) comes into contact with the radio frequency connector (4).

7. The airborne communication antenna according to claim 3, characterized in that, The printed circuit board (7) is connected to the radio frequency connector (4) via a wire (11).

8. The airborne communication antenna according to claim 7, characterized in that, The outer surface of the conductor (11) is silver-plated.

9. The airborne communication antenna according to claim 8, characterized in that, The antenna base plate (1) is made of insulating material.

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