A short-wave omnidirectional helical antenna device

Abstract

The present invention discloses a short-wave omnidirectional helical antenna device, belonging to the technical field of radio short-wave communication. The antenna device includes a support tower and a plurality of oscillator assemblies. The outer peripheral wall of the top of the support tower has a plurality of insulating support seats, and the plurality of insulating support seats are evenly spaced along the circumferential direction of the support tower. The plurality of oscillator assemblies are evenly spaced along the circumferential direction of the support tower. For any one oscillator assembly, the oscillator assembly includes a main shaft made of a metal structure and a first connecting rod. The main shaft is a helical structure arranged along the axial direction of the support tower, and each main shaft is installed on the corresponding insulating support seat. The first connecting rod connects the two ends of the main shaft to form a closed-loop structure. The short-wave omnidirectional helical antenna device provided by the present invention can not only realize the reception and transmission of horizontally polarized electromagnetic signals in all directions of 360°, but also maintain the effective electrical length of the oscillator of the antenna device.

Description

Technical Field

[0001] The present invention belongs to the technical field of short-wave radio communication, and more specifically, relates to a short-wave omnidirectional helical antenna device. Background Art

[0002] An antenna device is an important component of a communication system, used for signal transmission and reception, and has important research significance in major aerospace project fields such as satellite communication.

[0003] In related technologies, to achieve communication in the horizontal polarization direction of short-wave frequencies, an antenna device with an oscillator length of more than ten meters needs to be horizontally erected. Due to factors such as gravity and wind load, it is obviously difficult to horizontally erect the above antenna device on a single support tower, and it is impossible to achieve 360° omnidirectional reception and transmission of electromagnetic signals. Summary of the Invention

[0004] In view of the above defects or improvement requirements of the prior art, the present invention provides a short-wave omnidirectional helical antenna device, the purpose of which is to not only achieve 360° omnidirectional reception and transmission of horizontally polarized electromagnetic signals, but also maintain the effective electrical length of the oscillator of the antenna device.

[0005] The present invention provides a short-wave omnidirectional helical antenna device, and the antenna device includes a support tower and a plurality of oscillator assemblies;

[0006] The outer peripheral wall of the top of the support tower has a plurality of insulating support seats, and the plurality of insulating support seats are evenly spaced along the circumferential direction of the support tower;

[0007] The plurality of oscillator assemblies are evenly spaced along the circumferential direction of the support tower. For any one of the oscillator assemblies, the oscillator assembly includes a main shaft made of a metal structure and a first connecting rod. The main shaft is a helical structure arranged along the axial direction of the support tower, and each main shaft is installed on the corresponding insulating support seat. The first connecting rod connects the two ends of the main shaft to form a closed-loop structure.

[0008] Optionally, each main shaft includes a plurality of connecting shafts and a plurality of second connecting rods. Each connecting shaft is a C-shaped structure, and the plurality of connecting shafts are arranged in parallel at intervals. Any two adjacent connecting shafts are connected by one second connecting rod, so that the main shaft forms a helical structure.

[0009] Optionally, each main shaft further includes a plurality of connecting blocks, and the plurality of connecting blocks are spaced along the circumferential direction of the main shaft. Each connecting shaft passes through the plurality of connecting blocks.

[0010] Optionally, each of the insulating support seats includes a first support rod and a second support rod. The first support rod has a U-shaped structure. The two vertical rods of the first support rod are respectively connected to both ends of one of the connecting shafts. Both ends of the second support rod are respectively connected to the cross bar of the first support rod and the support tower.

[0011] Optionally, the number of the oscillator assemblies is 4. The projections of the oscillator assemblies on the radial section of the support tower are isosceles trapezoids, and the inner edges and outer edges of the multiple oscillator assemblies are arranged in a square pattern.

[0012] Optionally, each of the oscillator assemblies further includes an insulating support rod. One end of the insulating support rod and the insulating support seat are respectively located on both sides of the corresponding main shaft. One end of the insulating support rod is connected to the corresponding main shaft, and the other end of the insulating support rod is connected to the support tower.

[0013] Optionally, the outer peripheral wall of the support tower has a plurality of lugs. The plurality of lugs are arranged at intervals along the circumferential direction of the support tower. The other end of each insulating support rod is fixedly installed on the corresponding lug.

[0014] Optionally, the support tower includes a first support section, a connection section, and a second support section that are coaxially connected in sequence. The connection section has a plurality of wire routing holes arranged at intervals, and the connection section is connected to the first support section or the second support section through a flange.

[0015] Optionally, the support tower has a plurality of ladders. The plurality of ladders extend along the length direction of the support tower.

[0016] Optionally, the support tower is a self-standing tower or a guyed tower.

[0017] The beneficial effects brought by the technical solution provided by the embodiment of the present invention are as follows:

[0018] For a short-wave omnidirectional helical antenna device provided by the embodiment of the present invention, since a plurality of oscillator assemblies are evenly arranged at intervals along the circumferential direction of the support tower and are arranged on the top of the support tower through insulating support seats, each oscillator assembly can independently receive and transmit electromagnetic signals, and can receive and transmit electromagnetic signals in all directions of 360°.

[0019] Furthermore, multiple oscillator components are evenly spaced along the circumferential direction of the support tower. For any one oscillator component, the oscillator component includes a main shaft made of a metal structure and a first connecting rod. The main shaft is a spiral structure arranged along the axial direction of the support tower. Each main shaft is installed on a corresponding insulating support base. The first connecting rod connects both ends of the main shaft to form a closed-loop structure, so that the oscillator component is axially spirally folded to reduce the external dimension. The antenna device has a compact structure and high integration, reduces the horizontal dimension, can receive and transmit horizontally polarized electromagnetic signals, and maintains the effective electrical length of the oscillator of the antenna device.

[0020] That is to say, a short-wave omnidirectional spiral antenna device provided by the present invention can not only realize receiving and transmitting horizontally polarized electromagnetic signals in all directions of 360°, but also maintain the effective electrical length of the oscillator of the antenna device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a short-wave omnidirectional spiral antenna device provided by an embodiment of the present invention;

[0022] Figure 2 is a top view of a short-wave omnidirectional spiral antenna device provided by an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of an oscillator component provided by an embodiment of the present invention;

[0024] Figure 4 is a partial enlarged view of an oscillator component provided by an embodiment of the present invention;

[0025] Figure 5 is a schematic structural diagram of a support tower provided by an embodiment of the present invention;

[0026] Figure 6 is a signal radiation pattern of a short-wave omnidirectional spiral antenna device provided by an embodiment of the present invention.

[0027] The meanings represented by the symbols in the figure are as follows:

[0028] 1, support tower; 11, insulating support base; 111, first support rod; 112, second support rod; 12, hanging ear; 13, first support section; 14, connecting section; 141, wire routing hole; 15, second support section; 16, ladder; 17, signal transceiver; 18, cable; 2, oscillator component; 21, main shaft; 211, connecting shaft; 212, second connecting rod; 213, connecting block; 22, first connecting rod; 23, insulating support rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Figure 1 FIG. 4 is a schematic structural diagram of a short-wave omnidirectional helical antenna device provided by an embodiment of the present invention. Figure 2 FIG. 5 is a top view of a short-wave omnidirectional helical antenna device provided by an embodiment of the present invention. As shown in combination with Figure 1 and Figure 2 shown, the antenna device includes a support tower 1 and a plurality of oscillator assemblies 2.

[0031] The outer peripheral wall of the top of the support tower 1 has a plurality of insulating support seats 11, and the plurality of insulating support seats 11 are evenly spaced along the circumferential direction of the support tower 1.

[0032] Figure 3 FIG. 7 is a schematic structural diagram of an oscillator assembly provided by an embodiment of the present invention. Figure 4 FIG. 8 is a partially enlarged view of an oscillator assembly provided by an embodiment of the present invention. As shown in combination with Figure 3 and Figure 4 shown, the plurality of oscillator assemblies 2 are evenly spaced along the circumferential direction of the support tower 1. For any one oscillator assembly 2, the oscillator assembly 2 includes a main shaft 21 made of a metal structure and a first connecting rod 22. The main shaft 21 is a helical structure arranged along the axial direction of the support tower 1. Each main shaft 21 is installed on the corresponding insulating support seat 11, and the first connecting rod 22 connects the two ends of the main shaft 21 to form a closed-loop structure.

[0033] For a short-wave omnidirectional helical antenna device provided by an embodiment of the present invention, since the plurality of oscillator assemblies 2 are evenly spaced along the circumferential direction of the support tower 1 and are arranged on the top of the support tower 1 through the insulating support seats 11, each oscillator assembly 2 can independently receive and transmit electromagnetic signals, and realize 360° omnidirectional reception and transmission of electromagnetic signals.

[0034] Furthermore, the plurality of oscillator assemblies 2 are evenly spaced along the circumferential direction of the support tower 1. For any one oscillator assembly 2, the oscillator assembly 2 includes a main shaft 21 made of a metal structure and a first connecting rod 22. The main shaft 21 is a helical structure arranged along the axial direction of the support tower 1. Each main shaft 21 is installed on the corresponding insulating support seat 11, and the first connecting rod 22 connects the two ends of the main shaft 21 to form a closed-loop structure, so that the oscillator assembly 2 is axially helically folded to reduce the external dimension. The antenna device has a compact structure and high integration, reduces the horizontal dimension, can receive and transmit horizontally polarized electromagnetic signals, and maintains the effective electrical length of the oscillator of the antenna device.

[0035] That is to say, a short-wave omnidirectional helical antenna device provided by the present invention can not only receive and transmit horizontally polarized electromagnetic signals in all directions of 360°, but also maintain the effective electrical length of the antenna device oscillator.

[0036] In this embodiment, the number of oscillator assemblies 2 can be 4 (adjacent two oscillator assemblies 2 are arranged at 90°), the projection of each oscillator assembly 2 on the radial section of the support tower 1 is an isosceles trapezoid, and the inner edges and outer edges of multiple oscillator assemblies 2 are arranged in a square shape.

[0037] In the above embodiment, the projection of each oscillator assembly 2 on the radial section of the support tower 1 is an isosceles trapezoid, which can make the inner edges and outer edges of multiple oscillator assemblies 2 arranged in a square shape as a whole, and can further reduce the size in the horizontal direction and improve the space utilization rate in the horizontal direction.

[0038] It should be noted that the beam circumferential coverage of a single oscillator assembly 2 is ≥100°, and the maximum radiation direction is achieved by 4 oscillator assemblies 2 to cover the omnidirectional beam of low elevation angle horizontal polarization.

[0039] In addition, in other embodiments of the present invention, the number of oscillator assemblies 2 can also be 5 or 6, etc., and the present invention does not limit this.

[0040] Continue to refer to Figure 3 and Figure 4 , each main shaft 21 includes a plurality of connecting shafts 211 and a plurality of second connecting rods 212. Each connecting shaft 211 is a C-shaped structure, and a plurality of connecting shafts 211 are arranged in parallel at intervals. Any adjacent two connecting shafts 211 are connected by a second connecting rod 212 so that the main shaft 21 forms a helical structure.

[0041] In the above embodiment, through the arrangement of a plurality of connecting shafts 211 and a plurality of second connecting rods 212, the assembly of the helical structure can be conveniently realized, thereby reducing the processing difficulty of the main shaft 21 and reducing the production cost of the device.

[0042] Furthermore, each main shaft 21 further includes a plurality of connecting blocks 213. The plurality of connecting blocks 213 are arranged at intervals along the circumference of the main shaft 21, and each connecting shaft 211 passes through the plurality of connecting blocks 213.

[0043] In the above embodiment, the plurality of connecting blocks 213 can ensure the structural strength between the plurality of connecting shafts 211, thereby increasing the stability of the oscillator assembly 2.

[0044] In this embodiment, each insulating support base 11 includes a first support rod 111 and a second support rod 112. The first support rod 111 is of a U-shaped structure. The two vertical rods of the first support rod 111 are respectively connected to both ends of a connecting shaft 211. The two ends of the second support rod 112 are respectively connected to the cross bar of the first support rod 111 and the support tower 1. The first support rod 111 can respectively realize the connection of both ends of the connecting shaft 211, so as to increase the connection strength between the oscillator assembly 2 and the support tower 1 under the connection action of the second support rod 112.

[0045] It should be noted that the first support rod 111 includes two vertical rods and a cross bar, and is integrally U-shaped.

[0046] Refer to again Figure 1 , each oscillator assembly 2 further includes an insulating support rod 23. One end of the insulating support rod 23 and the insulating support base 11 are respectively located on both sides of the corresponding main shaft 21. One end of the insulating support rod 23 is connected to the corresponding main shaft 21, and the other end of the insulating support rod 23 is connected to the support tower 1, so as to further increase the connection strength between the oscillator assembly 2 and the support tower 1 through the insulating support rod 23.

[0047] Figure 5 is a schematic structural diagram of the support tower provided by the embodiment of the present invention. As Figure 5 shown, there are a plurality of hanging ears 12 on the outer peripheral wall of the support tower 1. The plurality of hanging ears 12 are arranged at intervals along the circumferential direction of the support tower 1. The other ends of the respective insulating support rods 23 are fixedly installed on the corresponding hanging ears 12, so as to realize the connection between the insulating support rod 23 and the support tower 1 through the hanging ears 12.

[0048] Exemplarily, the second support rod 112 also realizes its connection with the support tower 1 through a hanging ear.

[0049] In this embodiment, the support tower 1 includes a first support section 13, a connection section 14 and a second support section 15 that are coaxially connected in sequence. The connection section 14 has a plurality of wire holes 141 arranged at intervals, and the connection section 14 is connected to the first support section 13 or the second support section 15 through a flange.

[0050] In the above embodiment, the support tower 1 is set to three sections, which is convenient for processing and transportation.

[0051] Exemplarily, a plurality of hanging ears 12 are all arranged on the first support section 13.

[0052] In addition, the bottom of the support tower 1 has a notch, and a signal transceiver 17 is provided inside the support tower 1. The signal transceiver 17 is aligned with the notch, which facilitates installation and maintenance. The signal transceiver 17 and each oscillator assembly 2 are electrically connected through a cable 18, thereby realizing signal transmission and reception. The cable 18 passes through the wiring hole 141 on the connection section 14 and is electrically connected to the first connecting rod 22 of each oscillator assembly 2.

[0053] Exemplarily, a plurality of ladders 16 are provided on the support tower 1. The plurality of ladders 16 extend along the length direction of the support tower 1, thereby facilitating the maintenance and installation of the oscillator assembly 2.

[0054] Exemplarily, the support tower 1 can be made of steel structure, and the support tower 1 is a self-supporting tower or a guyed tower.

[0055] Figure 6 It is the signal radiation pattern of a short-wave omnidirectional helical antenna device provided by an embodiment of the present invention. As Figure 6 shown, through simulation calculation by an electromagnetic simulation software, it has a beam coverage with a low elevation angle of 60° to 80°. The normalized radiation energy intensity is high within this angle range, and the communication effect is good; due to the low elevation angle (60° to 80°), the number of hops of ionospheric reflection is small and the loss is small, which is beneficial to long-distance communication. The outer circle 270~0~90 represents the communication angle, and the vertical axis 0~-5~-10~-20 represents a high normalized radiation energy intensity. The closer this value is to 0, the better the communication effect. Designing the antenna device into such a helical structure, the main lobe protrudes significantly in the low elevation angle direction and the curve is smooth, which can ensure long-distance communication.

[0056] It is easy for those skilled in the art to understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A short-wave omnidirectional helical antenna device, characterized in that, The antenna device includes a support tower (1) and a plurality of oscillator assemblies (2); The outer peripheral wall at the top of the support tower (1) has a plurality of insulating support seats (11), and the plurality of insulating support seats (11) are arranged at equal intervals along the circumferential direction of the support tower (1); The plurality of oscillator assemblies (2) are arranged at equal intervals along the circumferential direction of the support tower (1). For any one of the oscillator assemblies (2), the oscillator assembly (2) includes a main shaft (21) made of a metal structure and a first connecting rod (22). The main shaft (21) is a spiral structure arranged along the axial direction of the support tower (1). Each main shaft (21) is installed on the corresponding insulating support seat (11), and the first connecting rod (22) connects the two ends of the main shaft (21) to form a closed-loop structure; Each main shaft (21) includes a plurality of connecting shafts (211) and a plurality of second connecting rods (212). Each connecting shaft (211) is a C-shaped structure. The plurality of connecting shafts (211) are arranged in parallel at intervals. Any two adjacent connecting shafts (211) are connected by one second connecting rod (212) so that the main shaft (21) forms a spiral structure.

2. The short-wave omnidirectional helical antenna device according to claim 1, characterized in that, Each main shaft (21) further includes a plurality of connecting blocks (213). The plurality of connecting blocks (213) are arranged at intervals along the circumferential direction of the main shaft (21). Each connecting shaft (211) passes through the plurality of connecting blocks (213).

3. The short-wave omnidirectional helical antenna device according to claim 1, characterized in that, Each insulating support seat (11) includes a first support rod (111) and a second support rod (112). The first support rod (111) is a U-shaped structure. The two vertical rods of the first support rod (111) are respectively connected to the two ends of one connecting shaft (211). The two ends of the second support rod (112) are respectively connected to the cross bar of the first support rod (111) and the support tower (1).

4. The short-wave omnidirectional helical antenna device according to claim 1, characterized in that, The number of the oscillator assemblies (2) is 4. The projection of each oscillator assembly (2) on the radial section of the support tower (1) is an isosceles trapezoid, and the inner edges and outer edges of the plurality of oscillator assemblies (2) are arranged in a square shape.

5. The short-wave omnidirectional helical antenna device according to claim 1, characterized in that, Each oscillator assembly (2) further includes an insulating support rod (23). One end of the insulating support rod (23) and the insulating support seat (11) are respectively located on both sides of the corresponding main shaft (21). One end of the insulating support rod (23) is connected to the corresponding main shaft (21), and the other end of the insulating support rod (23) is connected to the support tower (1).

6. The short-wave omnidirectional helical antenna device according to claim 5, characterized in that, The outer peripheral wall of the support tower (1) has a plurality of lugs (12). The plurality of lugs (12) are arranged at intervals along the circumferential direction of the support tower (1). The other end of each insulating support rod (23) is fixedly installed on the corresponding lug (12).

7. The short-wave omnidirectional helical antenna device according to any one of claims 1-6, characterized in that, The support tower (1) includes a first support section (13), a connection section (14), and a second support section (15) that are coaxially connected in sequence. The connection section (14) is provided with a plurality of wire routing holes (141) arranged at multiple intervals, and the connection section (14) is flange-connected to the first support section (13) or the second support section (15).

8. The short-wave omnidirectional helical antenna device according to any one of claims 1-6, characterized in that, A plurality of ladders (16) are provided on the support tower (1), and the plurality of ladders (16) extend along the length direction of the support tower (1).

9. The short-wave omnidirectional helical antenna device according to any one of claims 1-6, characterized in that, The support tower (1) is a self-supporting tower or a guyed tower.

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