A dual-band dual-polarization shortwave antenna device

Abstract

The present invention discloses a dual-band dual-polarization shortwave antenna device, which belongs to the field of radio shortwave communication technology. The antenna device includes a support tower, a high-frequency vertically polarized vibrator assembly, a high-frequency horizontally polarized vibrator assembly, a low-frequency vertically polarized vibrator assembly, and a low-frequency horizontally polarized vibrator assembly. The high-frequency vertically polarized vibrator assembly, the high-frequency horizontally polarized vibrator assembly, the low-frequency vertically polarized vibrator assembly, and the low-frequency horizontally polarized vibrator assembly are sequentially insulated and arranged on the support tower from bottom to top. The dual-band dual-polarization shortwave antenna device provided by the present invention can not only cover high and low frequency communication bands, but also receive and transmit electromagnetic signals in both horizontal and vertical polarization modes.

Description

Technical Field

[0001] The present invention belongs to the technical field of radio shortwave communications, and more particularly, relates to a dual-band dual-polarization shortwave antenna device. Background Art

[0002] Antenna devices are an important part of communication systems and are used for sending and receiving signals. They have important research significance in major aerospace projects such as satellite communications.

[0003] At present, traditional shortwave antenna devices are unable to simultaneously cover high and low frequency communication bands, and receive and transmit electromagnetic signals in both horizontal and vertical polarization modes. Summary of the Invention

[0004] In response to the above-mentioned defects or improvement needs of the prior art, the present invention provides a dual-band dual-polarization shortwave antenna device, the purpose of which is not only to cover the high and low frequency communication bands, but also to receive and transmit electromagnetic signals in horizontal and vertical polarization modes.

[0005] The present invention provides a dual-band dual-polarization shortwave antenna device, which includes a support tower, a high-frequency vertically polarized vibrator assembly, a high-frequency horizontally polarized vibrator assembly, a low-frequency vertically polarized vibrator assembly, and a low-frequency horizontally polarized vibrator assembly. The high-frequency vertically polarized vibrator assembly, the high-frequency horizontally polarized vibrator assembly, the low-frequency vertically polarized vibrator assembly, and the low-frequency horizontally polarized vibrator assembly are sequentially insulated and arranged on the support tower from bottom to top.

[0006] The length of the high-frequency vertically polarized vibrator assembly in the length direction of the support tower is shorter than that of the low-frequency vertically polarized vibrator assembly. The high-frequency vertically polarized vibrator assembly and the low-frequency vertically polarized vibrator assembly each include two vibrator elements that are spaced apart and symmetrically arranged. Each of the vibrator elements includes a plurality of metal rings with different diameters and a plurality of metal wires. The plurality of metal rings are coaxially arranged in parallel on the support tower through a plurality of first insulating rods. The plurality of metal rings are spaced apart in the axial direction of the support tower, and the plurality of metal wires are spaced apart along the circumference of the support tower. The plurality of metal rings are connected by the plurality of metal wires.

[0007] The high-frequency horizontally polarized vibrator assembly includes a plurality of first vibrator units having a metal structure, wherein the plurality of first vibrator units are evenly spaced along the circumference of the support tower, and each of the first vibrator units has a double pyramid structure;

[0008] The low-frequency horizontally polarized vibrator assembly includes a plurality of second vibrator units with metal structures, and the plurality of second vibrator units are evenly spaced along the circumference of the support tower. Each second vibrator unit includes a main shaft with a spiral structure and a first connecting rod. The two ends of the main shaft extend along the axial direction of the support tower and are connected by the first connecting rod to form a closed loop.

[0009] Optionally, the metal rings of the two vibrator elements of the high-frequency vertical polarization vibrator assembly and the low-frequency vertical polarization vibrator assembly are connected by a plurality of second insulating rods, and the plurality of second insulating rods are arranged at intervals along the circumference of the support tower.

[0010] Optionally, each of the first vibrator units includes a main rod, multiple support rods, multiple first oblique rods and multiple second oblique rods, the multiple support rods are arranged at intervals along the circumference of the main rod, and one end of each support rod is connected to the middle part of the main rod, the two ends of each first oblique rod are respectively connected to the other ends of two adjacent support rods, one end of the main rod is insulated and installed on the outer peripheral wall of the support tower, and the main rod extends radially along the support tower, one end of each second oblique rod is connected to the main rod, and the other end of each second oblique rod is connected to the corresponding support rod or at least one first oblique rod.

[0011] Optionally, the first vibrator unit further includes a plurality of first insulating support rods, which are symmetrically arranged along the main rod, and each first insulating support rod is connected at both ends to at least one second oblique rod and the outer peripheral wall of the support tower.

[0012] Optionally, each of the main shafts includes multiple connecting shafts and multiple second connecting rods, each of the connecting shafts is a C-shaped structure, multiple connecting shafts are arranged in parallel and spaced apart, and any two adjacent connecting shafts are connected by a second connecting rod, so that the main shaft forms a spiral structure.

[0013] Optionally, each of the main shafts further includes a plurality of connecting blocks, which are arranged at intervals along the circumference of the main shaft, and each of the connecting shafts passes through the plurality of connecting blocks.

[0014] Optionally, each of the second vibrator units further includes a second insulating support rod, one end of the second insulating support rod is connected to the main shaft, and the other end of the second insulating support rod is connected to the support tower.

[0015] Optionally, the outer peripheral wall of the support tower has a plurality of hanging ears, and the plurality of hanging ears are arranged at intervals along the circumference of the support tower, and the other end of the second insulating support rod is connected to the hanging ears.

[0016] Optionally, the support tower includes multiple supporting sections and multiple connecting sections, and the two ends of each connecting section are coaxially connected to two connecting sections respectively, and the high-frequency vertical polarization vibrator assembly, the high-frequency horizontal polarization vibrator assembly, the low-frequency vertical polarization vibrator assembly and the low-frequency horizontal polarization vibrator assembly are respectively located on the corresponding connecting sections.

[0017] Optionally, the support tower is provided with a plurality of ladders, and the plurality of ladders extend along the length direction of the support tower.

[0018] The technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0019] For a dual-band dual-polarization shortwave antenna device provided in an embodiment of the present invention, for a high-frequency vertically polarized vibrator assembly and a low-frequency vertically polarized vibrator assembly, it is designed with two vibrator elements, and each vibrator element includes multiple metal rings with different diameters and multiple metal wires. The multiple metal rings are arranged in parallel and coaxially on a support tower through multiple first insulating rods, and the multiple metal rings are arranged at intervals in the axial direction of the support tower, and the multiple metal wires are arranged at intervals along the circumference of the support tower. The multiple metal rings are connected by multiple metal wires, thereby improving and ensuring the effective electrical length in the vertical direction. Furthermore, since the length of the high-frequency vertically polarized vibrator assembly in the length direction of the support tower is shorter than that of the low-frequency vertically polarized vibrator assembly (the lower the frequency, the longer the electrical length required, and the electrical length of the low-frequency vertically polarized vibrator assembly is longer than that of the high-frequency vertically polarized vibrator assembly), the high-frequency vertically polarized vibrator assembly and the low-frequency vertically polarized vibrator assembly not only have a larger radiation range in the vertical direction (the axial direction of the support tower), but can also achieve 360° omnidirectional reception and transmission of vertically polarized electromagnetic signals, thereby respectively achieving omnidirectional reception and transmission of high-frequency vertically polarized electromagnetic signals and omnidirectional reception and transmission of low-frequency vertically polarized electromagnetic signals.

[0020] For the high-frequency horizontally polarized vibrator assembly, since multiple first vibrator units are evenly spaced along the circumference of the support tower and each first vibrator unit has a double-pyramid structure, omnidirectional reception and transmission of high-frequency horizontally polarized electromagnetic signals are achieved.

[0021] For the low-frequency horizontally polarized oscillator assembly, multiple second oscillator units are evenly spaced along the circumference of the support tower. Each second oscillator unit comprises a helical main shaft and a first connecting rod, with the two ends of the main shaft connected by the first connecting rod to form a closed loop. Because of the helical structure of the second oscillator unit, its electrical length is significantly greater than the bi-pyramid structure of the first oscillator unit (the lower the frequency, the longer the electrical length required), thereby enabling omnidirectional transmission and reception of low-frequency horizontally polarized electromagnetic signals.

[0022] That is to say, the dual-band dual-polarization shortwave antenna device provided by the present invention can not only cover the high and low frequency communication bands, but also receive and transmit electromagnetic signals in horizontal and vertical polarization modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a dual-band dual-polarization shortwave antenna device provided by an embodiment of the present invention;

[0024] Figure 2 1 is a schematic structural diagram of a high-frequency vertically polarized vibrator assembly provided by an embodiment of the present invention;

[0025] Figure 3 1 is a schematic structural diagram of a low-frequency vertically polarized vibrator assembly provided by an embodiment of the present invention;

[0026] Figure 4 1 is a schematic structural diagram of a high-frequency horizontally polarized oscillator assembly provided by an embodiment of the present invention;

[0027] Figure 5 1 is a schematic structural diagram of a low-frequency horizontally polarized oscillator assembly provided by an embodiment of the present invention;

[0028] Figure 6 is a structural diagram of a first vibrator unit provided by an embodiment of the present invention;

[0029] Figure 7 is a schematic structural diagram of a second vibrator unit provided by an embodiment of the present invention;

[0030] Figure 8 is a structural schematic diagram of a support tower provided by an embodiment of the present invention;

[0031] Figure 9 This is the signal radiation pattern of the high-frequency vertically polarized vibrator assembly provided by an embodiment of the present invention;

[0032] Figure 10 This is the signal radiation pattern of the high-frequency horizontally polarized oscillator assembly provided by an embodiment of the present invention;

[0033] Figure 11 This is the signal radiation pattern of the low-frequency vertically polarized vibrator assembly provided by an embodiment of the present invention;

[0034] Figure 12 This is the signal radiation pattern of the low-frequency horizontally polarized oscillator assembly provided by an embodiment of the present invention.

[0035] The symbols in the figure mean the following:

[0036] 1. Support tower; 11. Hanging ear; 12. Support section; 13. Connecting section; 14. Ladder; 2. High-frequency vertical polarization vibrator assembly; 21. Vibrator element; 211. Metal ring; 212. Metal wire; 213. First insulating rod; 22. Second insulating rod; 3. High-frequency horizontal polarization vibrator assembly; 31. First vibrator unit; 311. Main rod; 312. Support rod; 313. First oblique rod; 314. Second oblique rod; 315. First insulating support rod; 4. Low-frequency vertical polarization vibrator assembly; 5. Low-frequency horizontal polarization vibrator assembly; 51. Second vibrator unit; 511. Main shaft; 5111. Connecting shaft; 5112. Second connecting rod; 5113. Connecting block; 512. First connecting rod; 513. Second insulating support rod. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0038] Figure 1 FIG is a structural diagram of a dual-band dual-polarization shortwave antenna device provided by an embodiment of the present invention. Figure 1 As shown, the antenna device includes a supporting tower 1, a high-frequency vertical polarization vibrator assembly 2, a high-frequency horizontal polarization vibrator assembly 3, a low-frequency vertical polarization vibrator assembly 4 and a low-frequency horizontal polarization vibrator assembly 5. The high-frequency vertical polarization vibrator assembly 2, the high-frequency horizontal polarization vibrator assembly 3, the low-frequency vertical polarization vibrator assembly 4 and the low-frequency horizontal polarization vibrator assembly 5 are insulated and arranged in sequence from bottom to top on the supporting tower 1.

[0039] Figure 2 : is a schematic structural diagram of a high-frequency vertically polarized vibrator assembly provided by an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of the low-frequency vertical polarization vibrator assembly provided by an embodiment of the present invention, combined with Figure 2 and Figure 3As shown, the length of the high-frequency vertical polarization vibrator assembly 2 in the length direction of the support tower 1 is smaller than that of the low-frequency vertical polarization vibrator assembly 4. The high-frequency vertical polarization vibrator assembly 2 and the low-frequency vertical polarization vibrator assembly 4 each include two spaced and symmetrically arranged vibrator elements 21. Each vibrator element 21 includes a plurality of metal rings 211 with different diameters and a plurality of metal wires 212. The plurality of metal rings 211 are coaxially arranged in parallel on the support tower 1 through a plurality of first insulating rods 213, and the plurality of metal rings 211 are spaced apart in the axial direction of the support tower 1, and the plurality of metal wires 212 are spaced apart along the circumference of the support tower 1. The plurality of metal rings 211 are connected by a plurality of metal wires 212.

[0040] Figure 4 FIG. 1 is a schematic structural diagram of a high-frequency horizontally polarized oscillator assembly provided by an embodiment of the present invention. Figure 4 As shown, the high-frequency horizontally polarized oscillator assembly 3 includes a plurality of first oscillator units 31 of metal structure. The plurality of first oscillator units 31 are evenly spaced along the circumference of the support tower 1 , and each first oscillator unit 31 is a double pyramid structure.

[0041] Figure 5 FIG. 1 is a schematic structural diagram of a low-frequency horizontal polarization oscillator assembly provided by an embodiment of the present invention. Figure 5 As shown, the low-frequency horizontally polarized vibrator assembly 5 includes a plurality of second vibrator units 51 having a metal structure. The plurality of second vibrator units 51 are evenly spaced along the circumference of the support tower 1. Each second vibrator unit 51 includes a main shaft 511 having a spiral structure and a first connecting rod 512. Both ends of the main shaft 511 extend along the axial direction of the support tower 1 and are connected by the first connecting rod 512 to form a closed loop.

[0042] For a dual-band dual-polarization shortwave antenna device provided in an embodiment of the present invention, for a high-frequency vertically polarized vibrator assembly 2 and a low-frequency vertically polarized vibrator assembly 4, it is designed with two vibrator elements 21, and each vibrator element 21 includes multiple metal rings 211 with different diameters and multiple metal wires 212. The multiple metal rings 211 are all arranged in parallel and coaxially on the support tower 1 through multiple first insulating rods 213, and the multiple metal rings 211 are arranged at intervals in the axial direction of the support tower 1, and the multiple metal wires 212 are arranged at intervals along the circumference of the support tower 1. The multiple metal rings 211 are connected by multiple metal wires 212, thereby improving and ensuring the effective electrical length in the vertical direction. Furthermore, since the length of the high-frequency vertically polarized vibrator assembly 2 in the length direction of the support tower 1 is shorter than that of the low-frequency vertically polarized vibrator assembly 4 (the lower the frequency, the longer the electrical length required, and the low-frequency vertically polarized vibrator assembly 4 is longer than the electrical length of the high-frequency vertically polarized vibrator assembly 2), the high-frequency vertically polarized vibrator assembly 2 and the low-frequency vertically polarized vibrator assembly 4 not only have a larger radiation range in the vertical direction (the axial direction of the support tower 1), but can also realize 360° omnidirectional reception and transmission of vertically polarized electromagnetic signals, thereby realizing omnidirectional reception and transmission of high-frequency vertically polarized electromagnetic signals and omnidirectional reception and transmission of low-frequency vertically polarized electromagnetic signals respectively.

[0043] For the high-frequency horizontally polarized oscillator assembly 3, since multiple first oscillator units 31 are evenly spaced along the circumference of the support tower 1 and each first oscillator unit 31 has a double-pyramid structure, omnidirectional reception and transmission of high-frequency horizontally polarized electromagnetic signals are achieved.

[0044] For the low-frequency horizontally polarized oscillator assembly 5, multiple second oscillator units 51 are evenly spaced along the circumference of the support tower 1. Each second oscillator unit 51 comprises a main shaft 511 with a helical structure and a first connecting rod 512. The two ends of the main shaft 511 are connected by the first connecting rod 512 to form a closed loop. Because the second oscillator units 51 are helical, their electrical length is significantly greater than the bi-pyramid structure of the first oscillator unit 31 (lower frequencies require longer electrical lengths), thereby enabling omnidirectional transmission and reception of low-frequency horizontally polarized electromagnetic signals.

[0045] That is to say, the dual-band dual-polarization shortwave antenna device provided by the present invention can not only cover the high and low frequency communication bands, but also receive and transmit electromagnetic signals in horizontal and vertical polarization modes.

[0046] Exemplarily, the high-frequency vertical polarization oscillator assembly 2 operates at a frequency of X MHz to 30 MHz (3 MHz < X < 30 MHz) and can receive and transmit electromagnetic signals in the vertical polarization mode. The high-frequency horizontal polarization oscillator assembly 3 operates at a frequency of X MHz to 30 MHz (3 MHz < X < 30 MHz) and can receive and transmit electromagnetic signals in the horizontal polarization mode. The low-frequency vertical polarization oscillator assembly 4 operates at a frequency of 3 MHz to X MHz (3 MHz < X < 30 MHz) and can receive and transmit electromagnetic signals in the vertical polarization mode. The low-frequency horizontal polarization oscillator assembly 5 operates at a frequency of 3 MHz to X MHz (3 MHz < X < 30 MHz) and can receive and transmit electromagnetic signals in the horizontal polarization mode. That is, the antenna device of the present invention has a small footprint and high integration, and can achieve the communication function of dual-frequency and dual-polarization.

[0047] Exemplarily, the number of metal rings 211 of each oscillator element 21 is 3, and each oscillator element 21 is in the shape of a lantern. The length of the oscillator element 21 of the high-frequency vertical polarization oscillator assembly 2 in the vertical direction is less than that of the oscillator element 21 of the low-frequency vertical polarization oscillator assembly 4.

[0048] In this embodiment, the metal rings 211 of the two oscillator elements 21 of the high-frequency vertical polarization oscillator assembly 2 and the low-frequency vertical polarization oscillator assembly 4 are both connected by a plurality of second insulating rods 22. The plurality of second insulating rods 22 are arranged at intervals along the circumferential direction of the support tower 1, so that the two oscillator elements 21 can be connected into a whole through the second insulating rods 22, ensuring the structural strength of the high-frequency vertical polarization oscillator assembly 2 and the low-frequency vertical polarization oscillator assembly 4.

[0049] Figure 6 is a schematic structural diagram of the first oscillator unit provided by the embodiment of the present invention. Combining Figure 4 and Figure 6 as shown, each first oscillator unit 31 includes a main rod 311, a plurality of support rods 312, a plurality of first diagonal rods 313 and a plurality of second diagonal rods 314. The plurality of support rods 312 are arranged at intervals along the circumferential direction of the main rod 311, and one end of each support rod 312 is connected to the middle of the main rod 311. The two ends of each first diagonal rod 313 are respectively connected to the other ends of two adjacent support rods 312. One end of the main rod 311 is insulated and installed on the outer peripheral wall of the support tower 1, and the main rod 311 extends along the radial direction of the support tower 1. One end of each second diagonal rod 314 is connected to the main rod 311, and the other end of each second diagonal rod 314 is connected to the corresponding support rod 312 or at least one first diagonal rod 313.

[0050] In the above embodiment, the first vibrator unit 31 can be divided into a main rod 311, multiple support rods 312, multiple first oblique rods 313 and multiple second oblique rods 314, forming a fold in three-dimensional space to reduce the horizontal size, and at the same time be able to receive horizontally polarized electromagnetic signals while maintaining the effective electrical length of the vibrator of the antenna device.

[0051] Exemplarily, the number of first vibrator units 31 can be 4, and the circumferential beam coverage of a single first vibrator unit 31 is ≥100°. The maximum radiation direction is high-elevation horizontal polarization omnidirectional beam coverage achieved by the four first vibrator units 31. The number of support rods 312 can be 4, and the four support rods 312 are arranged in a cross shape. The main rod 311 and the four support rods 312 are vertically connected. The number of first oblique rods 313 can be 4, and the number of second oblique rods 314 can be 8. The four first oblique rods 313 and the eight second oblique rods 314 form a double pyramid structure. Among them, the main rod 311 and the four support rods 312 are the internal support structures of the double pyramid structure, which ensure that the structure of each first vibrator unit 31 is more stable.

[0052] In this embodiment, the first vibrator unit 31 also includes multiple first insulating support rods 315, which are symmetrically arranged along the main rod 311. The two ends of each first insulating support rod 315 are respectively connected to at least one second inclined rod 314 and the outer peripheral wall of the support tower 1, thereby further increasing the connection strength between the first vibrator unit 31 and the support tower 1 through the first insulating support rod 315.

[0053] Exemplarily, one end of the main pole 311 is mounted on the supporting tower 1 through an insulating seat.

[0054] Figure 7 This is a schematic structural diagram of the second vibrator unit provided by an embodiment of the present invention, combined with Figure 5 and Figure 7 As shown, each main shaft 511 includes multiple connecting shafts 5111 and multiple second connecting rods 5112. Each connecting shaft 5111 is a C-shaped structure. Multiple connecting shafts 5111 are arranged in parallel and spaced apart. Any two adjacent connecting shafts 5111 are connected by a second connecting rod 5112, so that the main shaft 511 forms a spiral structure.

[0055] In the above embodiment, by arranging multiple connecting shafts 5111 and multiple second connecting rods 5112, the assembly of the spiral structure can be easily achieved, thereby reducing the processing difficulty of the main shaft 511 and reducing the production cost of the device.

[0056] Furthermore, each main shaft 511 further includes a plurality of connection blocks 5113 , which are arranged at intervals along the circumference of the main shaft 511 , and each connecting shaft 5111 passes through the plurality of connection blocks 5113 .

[0057] In the above embodiment, the plurality of connection blocks 5113 can ensure the structural strength between the plurality of connection shafts 5111 , thereby increasing the stability of the second vibrator unit 51 .

[0058] Exemplarily, each second vibrator unit 51 also includes a second insulating support rod 513, one end of the second insulating support rod 513 is connected to the main shaft 511, and the other end of the second insulating support rod 513 is connected to the support tower 1, thereby further increasing the connection strength between the second vibrator unit 51 and the support tower 1 through the second insulating support rod 513.

[0059] Exemplarily, the main shaft 511 is also mounted on the support tower 1 through an insulating seat, and the connection stability of the second vibrator unit 51 is further ensured under the action of the second insulating support rod 513 .

[0060] In this embodiment, the number of second vibrator units 51 can be 4 (two adjacent second vibrator units 51 are arranged at 90°), the projection of each second vibrator unit 51 on the radial cross-section of the support tower 1 is an isosceles trapezoid, and the inner edges and outer edges of the multiple second vibrator units 51 are arranged in a square shape.

[0061] In the above embodiment, the projection of each second vibrator unit 51 on the radial cross section of the support tower 1 is an isosceles trapezoid, so that the inner and outer edges of the multiple second vibrator units 51 are arranged in a square shape as a whole, which can further reduce the horizontal size and improve the space utilization in the horizontal direction.

[0062] It should be noted that the circumferential beam coverage of a single second dipole unit 51 is ≥100°, and the maximum radiation direction is achieved by four pairs of second dipole units 51 as omnidirectional beam coverage with low elevation angle and horizontal polarization.

[0063] Figure 8 Schematic diagram of the structure of the support tower provided by the embodiment of the present invention. Figure 8 As shown, the outer wall of the support tower 1 has a plurality of hanging ears 11, and the plurality of hanging ears 11 are arranged at intervals along the circumference of the support tower 1. The other end of the second insulating support rod 513 is connected to the hanging ear 11, so that the connection between the second insulating support rod 513 and the support tower 1 is conveniently realized through the hanging ear 11.

[0064] Exemplarily, the first insulating support rod 315 is also connected to the support tower 1 through the hanging ear 11.

[0065] In this embodiment, the support tower 1 includes multiple support sections 12 and multiple connecting sections 13. The two ends of each connecting section 13 are coaxially connected to two connecting sections 13 respectively. The high-frequency vertical polarization vibrator assembly 2, the high-frequency horizontal polarization vibrator assembly 3, the low-frequency vertical polarization vibrator assembly 4 and the low-frequency horizontal polarization vibrator assembly 5 are respectively located on the corresponding connecting sections 13.

[0066] In the above embodiment, the support tower 1 is configured as a support section 12 and a plurality of connecting sections 13, thereby facilitating the processing and transportation of the support tower 1. Furthermore, a corresponding seat can be provided on each connecting section 13 to facilitate the installation of the high-frequency vertically polarized vibrator assembly 2, the high-frequency horizontally polarized vibrator assembly 3, the low-frequency vertically polarized vibrator assembly 4, and the low-frequency horizontally polarized vibrator assembly 5.

[0067] Exemplarily, the support tower 1 is provided with a plurality of ladders 14 , which extend along the length direction of the support tower 1 , thereby facilitating maintenance and installation of the vibrator assemblies.

[0068] In addition, the bottom of the support tower 1 has a notch, and the interior of the support tower 1 has a signal transceiver, which is directly opposite the notch, making it easy to install and maintain. The signal transceiver is electrically connected to each vibrator component through a cable to achieve signal transmission and reception.

[0069] The beneficial effects of the invention are:

[0070] (1) The horizontally polarized shortwave low-frequency band and high-frequency band are divided into frequency segments and arranged at different heights to achieve horizontally polarized shortwave full-band pitch beam with almost no blind spots and efficient radiation of electromagnetic waves.

[0071] (2) The vertically polarized shortwave low-frequency band and high-frequency band are divided into frequency segments and arranged at different heights to achieve vertically polarized shortwave full-band pitch beam with nearly no blind spots and efficient radiation of electromagnetic waves.

[0072] (3) Four oscillator assemblies are coaxially arranged on a free-standing tower, so that one antenna can meet both the shortwave omnidirectional horizontal polarization communication requirements and the shortwave omnidirectional vertical polarization communication requirements.

[0073] (4) The antenna device can solve the communication polarization loss in the shortwave parameter channel to a certain extent through polarization complementary communication, thereby improving the communication capability of the shortwave system.

[0074] Figure 9 is the signal radiation pattern of the high-frequency vertically polarized vibrator assembly provided by an embodiment of the present invention, Figure 10 is the signal radiation pattern of the high-frequency horizontal polarization oscillator assembly provided by an embodiment of the present invention, Figure 11 is the signal radiation pattern of the low-frequency vertically polarized vibrator assembly provided by an embodiment of the present invention, Figure 12This is the signal radiation pattern of the low-frequency horizontally polarized vibrator assembly provided by an embodiment of the present invention. As shown in the figure, through electromagnetic simulation software simulation calculation, the low-frequency vibrator assembly focuses on beam coverage in the elevation angle range of 35° to 85°, and the high-frequency vibrator assembly focuses on beam coverage in the elevation angle range of 35° to 70°. It can be seen from the figure that the antenna has good beam coverage within the corresponding elevation angle range, without obvious directional depression, and can achieve blind-spot communication within the corresponding beam coverage range.

[0075] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual-band dual-polarization shortwave antenna device, characterized in that: The antenna device comprises a supporting tower (1), a high-frequency vertical polarization vibrator assembly (2), a high-frequency horizontal polarization vibrator assembly (3), a low-frequency vertical polarization vibrator assembly (4) and a low-frequency horizontal polarization vibrator assembly (5); the high-frequency vertical polarization vibrator assembly (2), the high-frequency horizontal polarization vibrator assembly (3), the low-frequency vertical polarization vibrator assembly (4) and the low-frequency horizontal polarization vibrator assembly (5) are sequentially insulated and arranged on the supporting tower (1) from bottom to top; The length of the high-frequency vertical polarization vibrator component (2) in the length direction of the support tower (1) is shorter than that of the low-frequency vertical polarization vibrator component (4); the high-frequency vertical polarization vibrator component (2) and the low-frequency vertical polarization vibrator component (4) each include two vibrator elements (21) that are spaced apart and symmetrically arranged; each vibrator element (21) includes a plurality of metal rings (211) with different diameters and a plurality of metal wires (212); the plurality of metal rings (211) are coaxially arranged in parallel on the support tower (1) via a plurality of first insulating rods (213); the plurality of metal rings (211) are spaced apart in the axial direction of the support tower (1); the plurality of metal wires (212) are spaced apart in the circumferential direction of the support tower (1); and the plurality of metal rings (211) are connected via the plurality of metal wires (212); The high-frequency horizontally polarized oscillator assembly (3) comprises a plurality of first oscillator units (31) of metal structure, the plurality of first oscillator units (31) are evenly spaced along the circumference of the support tower (1), and each of the first oscillator units (31) is a double pyramid structure, each of the first oscillator units (31) comprises a main rod (311), a plurality of support rods (312), a plurality of first oblique rods (313) and a plurality of second oblique rods (314), the plurality of support rods (312) are spaced along the circumference of the main rod (311), and each of the support rods (312) is arranged at intervals. One end of each of the first oblique rods (313) is connected to the middle of the main rod (311), two ends of each of the first oblique rods (313) are respectively connected to the other ends of two adjacent support rods (312), one end of the main rod (311) is insulated and mounted on the outer peripheral wall of the support tower (1), and the main rod (311) extends along the radial direction of the support tower (1), one end of each of the second oblique rods (314) is connected to the main rod (311), and the other end of each of the second oblique rods (314) is connected to the corresponding support rod (312) or at least one of the first oblique rods (313); The low-frequency horizontal polarization oscillator assembly (5) comprises a plurality of second oscillator units (51) of metal structure, wherein the plurality of second oscillator units (51) are evenly spaced along the circumference of the support tower (1), and each second oscillator unit (51) comprises a main shaft (511) of a spiral structure and a first connecting rod (512), wherein both ends of the main shaft (511) extend along the axial direction of the support tower (1) and are connected by the first connecting rod (512) to form a closed loop, and each main shaft (511) comprises a plurality of connecting shafts (5111) and a plurality of second connecting rods (5112), wherein each connecting shaft (5111) is a C-shaped structure, and the plurality of connecting shafts (5111) are arranged in parallel and spaced apart, and any two adjacent connecting shafts (5111) are connected by one second connecting rod (5112) so that the main shaft (511) forms a spiral structure.

2. A dual-band dual-polarization shortwave antenna device according to claim 1, characterized in that: The metal rings (211) of the two vibrator elements (21) of the high-frequency vertical polarization vibrator assembly (2) and the low-frequency vertical polarization vibrator assembly (4) are connected via a plurality of second insulating rods (22), and the plurality of second insulating rods (22) are arranged at intervals along the circumference of the support tower (1).

3. The dual-band dual-polarization shortwave antenna device according to claim 1, characterized in that: The first vibrator unit (31) further comprises a plurality of first insulating support rods (315), wherein the plurality of first insulating support rods (315) are symmetrically arranged along the main rod (311), and the two ends of each first insulating support rod (315) are respectively connected to at least one of the second oblique rods (314) and the outer peripheral wall of the support tower (1).

4. The dual-band dual-polarization shortwave antenna device according to claim 1, characterized in that: Each of the main shafts (511) further comprises a plurality of connecting blocks (5113), wherein the plurality of connecting blocks (5113) are arranged at intervals along the circumference of the main shaft (511), and each of the connecting shafts (5111) passes through the plurality of connecting blocks (5113).

5. The dual-band dual-polarization shortwave antenna device according to claim 1, characterized in that: Each second vibrator unit (51) further includes a second insulating support rod (513), one end of the second insulating support rod (513) is connected to the main shaft (511), and the other end of the second insulating support rod (513) is connected to the support tower (1).

6. The dual-band dual-polarization shortwave antenna device according to claim 5, characterized in that: The outer peripheral wall of the support tower (1) has a plurality of hanging ears (11), and the plurality of hanging ears (11) are arranged at intervals along the circumference of the support tower (1), and the other end of the second insulating support rod (513) is connected to the hanging ear (11).

7. A dual-band dual-polarization shortwave antenna device according to any one of claims 1 to 6, characterized in that: The support tower (1) comprises a plurality of support sections (12) and a plurality of connecting sections (13), the two ends of each connecting section (13) are coaxially connected to two connecting sections (13), and the high-frequency vertical polarization vibrator assembly (2), the high-frequency horizontal polarization vibrator assembly (3), the low-frequency vertical polarization vibrator assembly (4), and the low-frequency horizontal polarization vibrator assembly (5) are respectively located on the corresponding connecting sections (13).

8. A dual-band dual-polarization shortwave antenna device according to any one of claims 1 to 6, characterized in that: The support tower (1) is provided with a plurality of ladders (14), and the plurality of ladders (14) extend along the length direction of the support tower (1).

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