Conformal omnidirectional antenna device

Abstract

The utility model discloses a conformal omnidirectional antenna device, which belongs to the technical field of antenna design, and comprises a mounting bottom plate, the top surface of the mounting bottom plate extends upwards to be provided with an antenna main body, the bottom end of the antenna main body is in smooth transition with the mounting bottom plate through a cambered surface, and the antenna main body is filled with a non-metal filling block. The installation bottom plate is a rectangular plate, the front end and the rear end of the rectangular plate are both arc-shaped end faces, side edge fillets are arranged on the left side and the right side of the installation bottom plate, and the front end and the rear end of the installation bottom plate are provided with end arc faces which are in smooth transition from the top face to the bottom face. According to the conformal omnidirectional antenna device, the mounting bottom plate and the antenna main body form the outer shell of the antenna, the mounting bottom plate and the antenna main body are made of aluminum alloy, the non-metal filling block is made of glass fiber reinforced plastic, an antenna housing does not need to be additionally arranged, reliability is high, the overall appearance of the antenna is attached to a carrier structure, the antenna performance is met, the longitudinal sectional area is small, and cost is low. The wind resistance is small, and the device is suitable for aircrafts and ground high-speed moving carriers.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna design, and more particularly to a conformal omnidirectional antenna device. Background Art

[0002] A conformal omnidirectional antenna is an omnidirectional radiating antenna that adapts to the surface of a complex carrier. An omnidirectional radiating antenna refers to an antenna that can radiate or receive electromagnetic waves uniformly on a horizontal plane.

[0003] Traditional omnidirectional antennas are mostly columnar structures, which are difficult to fit on the carrier and easily destroy the aerodynamic performance or concealment. With the development of technologies such as drones, smart wearables, and vehicle networks, the demand for conformal antennas and carriers and omnidirectional coverage has increased sharply.

[0004] Existing airborne antennas are usually equipped with radomes, which have poor structural integration and large wind resistance, which has a great impact on the aerodynamic performance of the vehicle. In addition, the installation reliability is low, which is not conducive to use.

[0005] How to solve the technical problems existing in the above-mentioned prior art has become an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0006] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a conformal omnidirectional antenna device, in which the outer shell of the antenna is formed by installing a base plate and an antenna body. The mounting base plate and the antenna body are made of aluminum alloy, and the non-metallic filling block is made of fiberglass. The metal structure antenna does not require an additional antenna cover and has high reliability. The overall shape of the antenna fits the carrier structure. While meeting the antenna performance, it also takes into account a small size, a small longitudinal cross-sectional area, and low wind resistance. It is suitable for aircraft and high-speed mobile vehicles on the ground.

[0007] In order to solve the above problems, the present invention adopts the following technical solutions:

[0008] A conformal omnidirectional antenna device includes: a mounting base plate, an antenna body extending upward from the top surface of the mounting base plate, the bottom end of the antenna body smoothly transitioning to the mounting base plate through an arc surface, the interior of the antenna body being filled with non-metallic filler blocks, the mounting base plate being a rectangular plate, the front and rear ends of the rectangular plate both having arc-shaped end surfaces, side chamfers being provided on the left and right sides of the mounting base plate, and end arc surfaces being provided at the front and rear ends of the mounting base plate to smoothly transition from the top surface to the bottom surface.

[0009] As a preferred solution of the present invention, the bottom surface of the mounting base plate is provided with an insertion opening corresponding to the non-metallic filling block, the non-metallic filling block is provided with an insertion hole, and the top surface of the insertion hole is provided with a mounting hole corresponding to the inside of the antenna body.

[0010] As a preferred solution of the present invention, a matching groove is provided on the bottom surface of the installation base plate corresponding to the insertion opening.

[0011] As a preferred solution of the present invention, a plurality of countersunk bolt holes are provided on the mounting base plate.

[0012] As a preferred solution of the present invention, the antenna body is knife-shaped.

[0013] As a preferred solution of the present invention, the front and rear ends of the top surface of the antenna body are provided with windward rounded portions.

[0014] Compared with the prior art, the present invention provides a conformal omnidirectional antenna device with the following beneficial effects:

[0015] The mounting base and antenna body adopt an integrated design, and the mounting base and antenna body are made of aluminum alloy, and the non-metallic filler is made of fiberglass. This antenna device does not require an additional antenna cover and has high reliability. The overall shape of the antenna fits the carrier structure, while meeting the antenna performance while taking into account the small size. The longitudinal cross-sectional area of ​​the antenna body is small, and the wind resistance is small, making it suitable for aircraft and high-speed mobile vehicles on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a bottom-up perspective view of the present invention;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 This is the horizontal azimuth gain pattern of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Mounting base; 2. Side rounding; 3. End arc surface; 4. Antenna body; 5. Matching slot; 6. Insertion port; 7. Non-metallic filler block; 8. Mounting hole; 9. Countersunk bolt hole; 10. Windward rounding; 11. Insertion hole. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1-4 A conformal omnidirectional antenna device includes: a mounting base plate 1, an antenna body 4 extending upward from the top surface of the mounting base plate 1, the bottom end of the antenna body 4 smoothly transitions to the mounting base plate 1 through an arc surface, the interior of the antenna body 4 is filled with a non-metallic filler block 7, the mounting base plate 1 is a rectangular plate, the front and rear ends of the rectangular plate are both arc-shaped end surfaces, side chamfers 2 are provided on the left and right sides of the mounting base plate 1, and end arc surfaces 3 that smoothly transition from the top surface to the bottom surface are provided at the front and rear ends of the mounting base plate 1.

[0024] The bottom surface of the mounting base plate 1 is provided with an insertion opening 6 corresponding to the non-metallic filling block 7 , and the non-metallic filling block 7 is provided with an insertion hole 11 corresponding to the installation hole 8 inside the antenna body 4 .

[0025] In a specific embodiment of the present utility model, the antenna as a whole is formed by installing a base plate 1, an antenna body 4 and a non-metallic filling block 7. The non-metallic filling block 7 is filled in the antenna body 4. The installing base plate 1 and the antenna body 4 are made of aluminum alloy, and the non-metallic filling block 7 is made of fiberglass. The installing base plate 1 and the antenna body 4 are integrated into a design. The antenna device does not require an additional antenna cover and has high reliability. The overall shape of the antenna can fit with the carrier structure. While meeting the antenna performance, it also takes into account a small size. The antenna body 4 is knife-shaped, with a small longitudinal cross-sectional area and small wind resistance. It is suitable for aircraft and ground high-speed mobile vehicles. The induction body is then installed by the insertion port 6, the insertion hole 11 and the mounting hole 8 to realize the function of the antenna.

[0026] The antenna device adopts the side rounding 2 and the end arc surface 3 to facilitate the installation of the base plate 1 and the carrier structure, which not only helps to reduce wind resistance but also avoids scratches caused by sharp corners.

[0027] Specifically, a plurality of countersunk bolt holes 9 are provided on the mounting base plate 1 .

[0028] In this embodiment, the countersunk bolt holes 9 enable the mounting base plate 1 to be fixed at a predetermined mounting position, and enable installation and removal operations. The countersunk bolt holes 9 are used so that the top surface of the bolts is lower than the top surface of the mounting base plate 1 during installation, reducing the impact on the carrier.

[0029] Specifically, the antenna body 4 is a knife-shaped structure, and windward rounded portions 10 are provided at the front and rear ends of the top surface of the antenna body 4 .

[0030] In this embodiment, the antenna body 4 and the vehicle are matched with each other by the windward rounding 10, thereby reducing wind resistance during movement.

[0031] Specifically, a matching groove 5 is formed on the bottom surface of the installation base plate 1 .

[0032] In this embodiment, the installation base plate 1 is more easily positioned and installed during installation through the matching groove 5.

[0033] Working principle: the antenna is composed of the installation base plate 1, the antenna main body 4 and the non-metallic filling block 7, the installation base plate 1 and the antenna main body 4 form the outer shell of the antenna, and the non-metallic filling block 7 is filled therein, the installation base plate 1 and the antenna main body 4 are made of aluminum alloy, the non-metallic filling block 7 is made of glass steel material, the structure is integrated with the antenna, the antenna device does not need to be additionally provided with a radome, is high in reliability, the appearance of the antenna is matched with the carrier structure, the antenna performance is met, small size is also considered, the appearance is in the shape of a knife, the longitudinal sectional area is small, the wind resistance is small, is suitable for aircrafts and ground high-speed moving carriers, the inductor is installed through the insertion port 6, the insertion hole 11 and the mounting hole 8, and the function of the antenna is realized.

[0034] Referring to Figure 4 , the vertical numbers 0, -5, -10, -15, -20, -25, -30, -35 and -40 are antenna gains, and the unit is dBi, and the circumferential numbers are horizontal plane direction angles, and the unit is deg. The antenna device is wide in working frequency band, can be compatible with multi-frequency communication and detection requirements, and multiple antennas do not need to be installed for different frequency tasks.

[0035] The control mode of the utility model is controlled by manually starting and closing the switch, and the wiring diagram of the power element and the provision of the power supply are common knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the control mode and the wiring arrangement of the utility model are not explained in detail.

[0036] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the improvement concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. A conformal omnidirectional antenna device, characterized in that: include: A mounting base plate (1) is provided, wherein an antenna body (4) is provided on the top surface of the mounting base plate (1), the bottom end of the antenna body (4) smoothly transitions to the mounting base plate (1) through an arc surface, the interior of the antenna body (4) is filled with a non-metallic filler block (7), the mounting base plate (1) is a rectangular plate, the front and rear ends of the rectangular plate are both arc-shaped end surfaces, side chamfers (2) are provided on the left and right sides of the mounting base plate (1), and end arc surfaces (3) that smoothly transition from the top surface to the bottom surface are provided on the front and rear ends of the mounting base plate (1).

2. The conformal omnidirectional antenna device according to claim 1, wherein: The bottom surface of the mounting base plate (1) is provided with an insertion opening (6) corresponding to the non-metallic filling block (7), the non-metallic filling block (7) is provided with an insertion hole (11) corresponding to the insertion hole (11), and the top surface of the insertion hole (11) is provided with a mounting hole (8) corresponding to the inside of the antenna body (4).

3. The conformal omnidirectional antenna device according to claim 2, wherein: A matching groove (5) is provided on the bottom surface of the installation base plate (1) corresponding to the insertion opening (6).

4. The conformal omnidirectional antenna device according to claim 3, wherein: A plurality of countersunk bolt holes (9) are provided on the mounting base plate (1).

5. The conformal omnidirectional antenna device according to claim 4, characterized in that: The antenna body (4) is knife-shaped.

6. The conformal omnidirectional antenna device according to claim 5, characterized in that: The front and rear ends of the top surface of the antenna body (4) are provided with windward rounded portions (10).

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