A wideband low-scattering integrated antenna structure

By designing a broadband low-scattering integrated antenna structure and utilizing tensile-resistant structures and anti-backflow devices, the problem of damage to the feeder caused by ship swaying and wind and waves was solved, enabling the antenna to operate reliably in harsh sea conditions.

CN123054094APending Publication Date: 2026-11-06JIANGSU INST OF METROLOGY
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Patent Information

Application Number
CN202611241340.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-08-17
Publication Date
2026-11-06

AI Technical Summary

Technical Problem

When a ship is rocking and in rough seas, the connection between the feeder and the connector is prone to breakage due to repeated bending stress and tensile force, affecting the normal operation of the antenna.

Method used

A broadband low-scatter integrated antenna structure was designed, which includes a tensile structure and an anti-backflow device. Through components such as a sliding cylinder, an arc cylinder, a spring, a feed line, a top plate, and a water filter, the bending protection of the feed line and the seawater ingress prevention device are realized to avoid damage from pulling and soaking.

Benefits of technology

This effectively avoids pulling damage at the base of the feeder, increases the electrical length of the antenna, improves signal stability, and prevents seawater from entering the antenna, ensuring normal operation of the equipment in harsh sea conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of antenna structure technology, specifically a broadband low-scatter integrated antenna structure, including a base, a tensile structure, a sliding cylinder, an arc-shaped cylinder, a first spring, a feed line, a top plate, and a protective layer. In this invention, when the ship rolls, it causes the entire base to sway, and the force from the base's sway also causes the protective layer to sway. During the swaying of the protective layer, the force on the protective layer causes the sliding cylinder to slide inside the base. As the sliding cylinder slides, it pulls the feed line, causing the feed line to gradually straighten from a curved shape inside the protective layer. This prevents the base of the feed line from being pulled between itself and the base when the protective layer sways. Furthermore, when the ship is not encountering wind and waves, the feed line is curved inside the protective layer, and its length is much longer than when it is installed in a straight line, thereby increasing the electrical length of the antenna.
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Description

Technical Field

[0001] This invention relates to the field of antenna structure technology, specifically a broadband low-scattering integrated antenna structure. Background Technology

[0002] The core function of an integrated antenna structure is to deeply integrate the antenna radiating element with the radio frequency circuit, functional module or carrier structure, eliminate interconnection loss, achieve miniaturized integration, improve signal stability and simplify system deployment. Through the collaborative design of the antenna and the radio frequency front end (such as power amplifier and low noise amplifier), it significantly reduces the insertion loss caused by connectors and transmission lines, and improves the overall radiation efficiency and signal-to-noise ratio.

[0003] The integrated antenna structure on a ship will sway with the ship's rolling motion. When the ship is sailing and encounters large waves, the hurricane will bring large waves that will crash against the hull, causing the hull to roll. When the hull rolls, the feed line (cable) will roll with the hull, generating repeated bending stress and tensile force on the connector root. Prolonged tension can cause the connection between the feed line and the connector to break, affecting the normal operation of the antenna. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an integrated antenna structure that can prevent the connection between the feeder and the connector from breaking, thus affecting the normal operation of the antenna.

[0005] To address the problems in existing technologies, this invention provides a broadband low-scatter integrated antenna structure, including a base. The base contains a tensile structure, which comprises a sliding cylinder, an arc-shaped cylinder, a first spring, a feed line, a top plate, and a protective layer. The sliding cylinder is slidably connected inside the base. The arc-shaped cylinder is fixedly mounted on the base and located inside the sliding cylinder, with its upper end forming an arc shape. One end of the first spring is fixedly connected to the upper end of the arc-shaped cylinder, and the other end of the first spring is fixedly connected to the lower end of the top plate. One end of the feed line is fixedly connected to the upper end of the first spring, and the outer wall of the feed line is fixedly connected to the interior of the top plate. The curved portion of the feed line is located inside the protective layer, and the top plate is slidably connected inside the protective layer.

[0006] Specifically, the base is equipped with a reset assembly, which consists of a baffle, a sliding shaft and a second spring. The baffle is fixedly installed in a mounting cylinder inside the base.

[0007] Specifically, the lower end of the baffle is fixedly connected to the upper end of the second spring, the lower end of the second spring is fixedly connected to the sliding disc at the lower end of the sliding shaft, and the sliding disc at the lower end of the sliding shaft is slidably connected in the mounting cylinder opened inside the base.

[0008] Specifically, the base is equipped with an anti-backflow device, which consists of a water filter tank, a fixed plate, a rotating shaft, a return spring, a rotating plate, a connecting block, a rubber block, and a support plate. The two sets of water filter tanks are located inside the base.

[0009] Specifically, the fixing plate is fixedly installed on the base, and a set of rotating shafts is provided between the two sets of fixing plates.

[0010] Specifically, a rotating plate is rotatably connected to the rotating shaft, and a return spring is provided at the connection between the rotating plate and the rotating shaft to drive the rotating plate to return to its original position.

[0011] Specifically, a set of connecting blocks is fixedly installed at the lower end of the rotating plate, and a set of rubber blocks is fixedly installed at the lower end of the connecting blocks. The lower end of the rubber blocks is arc-shaped. The support plate is fixedly installed on the inner wall of the sliding cylinder, and the water filter tank is located directly below the rotating plate.

[0012] Specifically, a set of mounting plates is fixedly installed at the lower end of the base, and the mounting plates are connected to the hull by nuts.

[0013] Specifically, the lower end of the base is provided with a set of connecting grooves for connecting with the hull connecting seat.

[0014] The beneficial effects of this invention are: 1. In this invention, when the ship rocks, it will cause the entire base to shake. The force generated by the shaking of the base will also cause the protective layer to shake. During the shaking of the protective layer, the force on the protective layer will cause the sliding cylinder to slide inside the base. During the sliding of the sliding cylinder, it will pull the feeder, causing the feeder to gradually straighten from a curved shape inside the protective layer. This prevents the base of the feeder from being pulled between the base and the protective layer when the protective layer shakes.

[0015] 2. In this invention, when the ship is not encountering wind and waves, the feeder is curved inside the protective layer, and its length is much longer than when it is installed in a straight line, thereby increasing the electrical length of the antenna.

[0016] 3. In this invention, when the sliding cylinder slides upward, it will drive the support plate to move together. During the movement of the support plate, it will drive the rotating plate to rotate on the rotating shaft. During the rotation of the rotating plate, it will send the rubber block into the water inlet of the water filter tank. The rubber block will block the water inlet of the water filter tank, preventing the water filter tank, which was originally located at the bottom, from becoming a side or low-lying water inlet when tilted. This would cause seawater to rush directly into the antenna cavity through the drain hole under pressure, soaking the internal feed network and vibrator.

[0017] 4. In this invention, after the sliding cylinder is reset, the rotating plate is no longer under force and will be reset by the reset spring, so as not to affect the normal drainage of the filter tank and avoid the condensate in the equipment from not being discharged, which would affect the operation of the antenna. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall connection structure of the present invention; Figure 2 This is a front view of the bottom of the entire invention; Figure 3 This is a side sectional view of the entire invention; Figure 4 This is a cross-sectional view of some parts in this invention; Figure 5 In this invention Figure 3 Enlarged view of point A; Figure 6 In this invention Figure 4 Enlarged view of point B.

[0020] In the diagram: 1. Base; 110. Mounting plate; 111. Nut; 112. Connecting groove; 2. Tensile device; 210. Sliding cylinder; 211. Arc-shaped cylinder; 212. First spring; 213. Feeder; 214. Top plate; 215. Protective layer; 216. Baffle; 217. Sliding shaft; 218. Second spring; 3. Anti-backflow device; 310. Filter tank; 311. Fixing plate; 312. Rotating shaft; 313. Return spring; 314. Rotating plate; 315. Connecting block; 316. Rubber block; 317. Support plate. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Example 1: As Figures 1-6The diagram shows a broadband low-scatter integrated antenna structure, including a base 1. The base 1 contains a tensile structure 2, which comprises a sliding cylinder 210, an arc-shaped cylinder 211, a first spring 212, a feed line 213, a top plate 214, and a protective layer 215. The sliding cylinder 210 is slidably connected inside the base 1. The arc-shaped cylinder 211 is fixedly installed on the base 1 and located inside the sliding cylinder 210, with its upper end forming an arc shape. One end of the first spring 212 is fixedly connected to the upper end of the arc-shaped cylinder 211, and the other end is fixedly connected to the lower end of the top plate 214. One end of the feed line 213 is fixedly connected to the upper end of the first spring 212, and the outer wall of the feed line 213 is fixedly connected to the interior of the top plate 214. The curved portion of the feed line 213 is located inside the protective layer 215, and the top plate 214 is slidably connected inside the protective layer 215.

[0023] As described above, when a ship is sailing on the sea and encounters wind and waves, the hurricane will cause excessive waves to crash against the hull, causing the hull to sway. When the hull sways, it will cause the base 1 to shake as a whole. The force generated by the shaking of the base 1 will also cause the protective layer 215 to shake. During the shaking of the protective layer 215, the force on the protective layer 215 will cause the sliding cylinder 210 to slide inside the base 1. During the sliding of the sliding cylinder 210, it will pull the feeder 213, so that the feeder 213 gradually straightens from a curved shape inside the protective layer 215, so that when the protective layer 215 shakes, there will be no pulling between the root of the feeder 213 and the base 1. When the ship is not encountering wind and waves, the feeder 213 is curved inside the protective layer 215, and its length is much longer than when it is installed in a straight line, thereby increasing the electrical length of the antenna. The electrical length of an antenna determines its resonant frequency. This is not as simple as "bending the wire". When electromagnetic waves travel along these bent paths, the corners and gaps in the path introduce distributed inductance and capacitance. This loading effect slows down the phase velocity of the electromagnetic waves as they propagate along the antenna. The slower wave speed means that, for the same physical length, its equivalent electrical length is stretched.

[0024] Furthermore, the base 1 is provided with a reset assembly, which consists of a baffle 216, a sliding shaft 217 and a second spring 218. The baffle 216 is fixedly installed in the mounting cylinder opened inside the base 1.

[0025] As shown above, the base 1 provides a stable installation environment for the reset component, and the reset component can drive the sliding cylinder 210 to return to its initial position.

[0026] Furthermore, the lower end of the baffle 216 is fixedly connected to the upper end of the second spring 218, the lower end of the second spring 218 is fixedly connected to the sliding disk at the lower end of the sliding shaft 217, and the sliding disk at the lower end of the sliding shaft 217 is slidably connected in the mounting cylinder opened inside the base 1.

[0027] As shown above, once the force from the wind and waves disappears, the hull will also return to balance. After the hull returns to balance, the sliding cylinder 210 will be reset under the action of the second spring 218. At this time, the sliding shaft 217 will also slide into the interior of the base 1 to complete the reset.

[0028] Example 2: Example 2 is a further improvement on Example 1.

[0029] like Figures 1-6 As shown, the base 1 is equipped with an anti-backflow device 3, which consists of a water filter 310, a fixing plate 311, a rotating shaft 312, a return spring 313, a rotating plate 314, a connecting block 315, a rubber block 316, and a support plate 317. Two sets of water filter 310 are opened inside the base 1.

[0030] As shown above, the base 1 provides a stable installation environment for the water filter tank 310. The condensate generated in the protective layer 215 and the sliding cylinder 210 will be discharged to the outside of the base 1 through the water filter tank 310, so as to avoid it from accumulating inside the equipment and affecting the normal operation of the antenna.

[0031] Furthermore, the fixing plate 311 is fixedly installed on the base 1, and a set of rotating shafts 312 is provided between the two sets of fixing plates 311. A rotating plate 314 is rotatably connected to the rotating shaft 312. A return spring 313 is provided at the connection between the rotating plate 314 and the rotating shaft 312 to drive the rotating plate 314 to return to its original position.

[0032] As shown above, the base 1 provides a stable installation environment for the fixed plate 311, and after the reset spring 313 is no longer under force, it will drive the rotating plate 314 to reverse the force brought by the wind and waves, causing the rotating plate 314 to rotate forward, thereby driving it to reset.

[0033] Furthermore, a set of connecting blocks 315 are fixedly installed at the lower end of the rotating plate 314, and a set of rubber blocks 316 are fixedly installed at the lower end of the connecting blocks 315. The lower end of the rubber blocks 316 is arc-shaped. The support plate 317 is fixedly installed on the inner wall of the sliding cylinder 210, and the water filter tank 310 is located directly below the rotating plate 314.

[0034] As described above, when the hull encounters wind and waves and the sliding cylinder 210 slides upward, it will drive the support plate 317 to move together. During the movement of the support plate 317, the rotating plate 314 will rotate on the rotating shaft 312. During the rotation of the rotating plate 314, the rubber block 316 will be sent into the water inlet of the filter tank 310. The rubber block 316 will block the water inlet of the filter tank 310, preventing the filter tank 310, which was originally located at the bottom, from becoming a side or low-lying water inlet when tilted, causing seawater to rush directly into the antenna cavity through the drain hole under pressure, soaking the internal feed network and vibrator.

[0035] Furthermore, a set of mounting plates 110 are fixedly installed at the lower end of the base 1, and the mounting plates 110 are connected to the hull by nuts 111.

[0036] As shown above, the base 1 provides a stable installation environment for the mounting plate 110 and is fixedly installed on the hull by nuts 111, thus completing the connection between the antenna and the equipment inside the cabin.

[0037] Furthermore, the lower end of the base 1 is provided with a set of connecting grooves 112 for connecting with the hull connecting seat.

[0038] As shown above, the base 1 provides a stable installation environment for the connection slot 112, while the feeder 213 is connected to the equipment inside the cabin through the connection slot 112.

[0039] Antenna structure installation: First, connect the connecting slot 112 to the connecting seat on the hull. Then, thread the nut 111 into the mounting plate and continue to tighten the nut 111 until the base 1 and the hull are fixed together to complete the installation.

[0040] Working Principle: When a ship encounters storms at sea, the hurricane generates huge waves that violently pound the hull, causing it to sway violently. This swaying motion is directly transmitted to the base 1, causing it to shake. The shaking of the base 1 then causes the protective layer 215 to move accordingly. During the shaking of the protective layer 215, the force acting on it pushes the sliding cylinder 210 to slide inside the base 1. As the sliding cylinder 210 slides, the feed line 213 is pulled, gradually straightening from its original curved state within the protective layer 215. This effectively prevents tensile damage between the base of the feed line 213 and the base 1 when the protective layer 215 shakes. In a stable state where the ship is not affected by storms, the feed line 213 is arranged in a curved manner inside the protective layer 215, with an actual length much greater than that of a straight installation. This increases the electrical length of the antenna and improves performance. At the same time, when the sliding cylinder 210 slides upward, it drives the support plate 317 to move accordingly. During the movement of the support plate 317, it drives the rotating plate 31. 4. Rotating around the pivot 312, during the rotation of the pivot plate 314, the rubber block 316 is pushed to the inlet of the water filter 310 and blocked. This design prevents the water filter 310, which was originally located at the bottom, from becoming a side or low-level water inlet when the hull tilts. This prevents seawater from flowing back into the antenna cavity through the drain hole under pressure, soaking the internal feed network and vibrator, and causing equipment damage. When the sliding cylinder 210 is reset, the pivot plate 314 is no longer under force and automatically returns to its original position under the action of the reset spring 313, thereby restoring the normal drainage function of the water filter 310 and ensuring that the water droplets condensed inside the equipment can be discharged smoothly to avoid affecting the operation of the antenna. When the force of the wind and waves disappears, the hull gradually returns to balance, the sliding cylinder 210 is reset under the action of the second spring 218, and the sliding shaft 217 also slides back into the base 1, completing the overall reset action. The entire system forms a virtuous cycle between dynamic response and automatic recovery, effectively ensuring the reliable operation of the antenna in harsh sea conditions.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention.

Claims

1. A broadband low-scattering integrated antenna structure, characterized in that, Including the base (1); The base (1) is provided with a tensile structure (2), which is composed of a sliding cylinder (210), an arc-shaped cylinder (211), a first spring (212), a feed line (213), a top plate (214), and a protective layer (215); The sliding cylinder (210) is slidably connected to the inside of the base (1); The arc-shaped cylinder (211) is fixedly installed on the base (1) and located inside the sliding cylinder (210), with its upper end in an arc shape; One end of the first spring (212) is fixedly connected to the upper end of the arc-shaped cylinder (211), and the other end of the first spring (212) is fixedly connected to the lower end of the top plate (214); One end of the feed line (213) is fixedly connected to the upper end of the first spring (212), the outer wall of the feed line (213) is fixedly connected to the interior of the top plate (214), and the bent part of the feed line (213) is located inside the protective layer (215). The top plate (214) is slidably connected to the inside of the protective layer (215).

2. The broadband low-scattering integrated antenna structure according to claim 1, characterized in that: The base (1) is provided with a reset assembly inside, which consists of a baffle (216), a sliding shaft (217) and a second spring (218); The baffle (216) is fixedly installed in the mounting cylinder opened inside the base (1).

3. The broadband low-scattering integrated antenna structure according to claim 2, characterized in that: The lower end of the baffle (216) is fixedly connected to the upper end of the second spring (218), and the lower end of the second spring (218) is fixedly connected to the sliding disk at the lower end of the sliding shaft (217). The sliding disk at the lower end of the sliding shaft (217) is slidably connected to the mounting cylinder opened inside the base (1).

4. A broadband low-scattering integrated antenna structure according to claim 1 or 2, characterized in that: The base (1) is equipped with an anti-backflow device (3), which consists of a filter tank (310), a fixing plate (311), a rotating shaft (312), a return spring (313), a rotating plate (314), a connecting block (315), a rubber block (316), and a support plate (317). The two sets of water filter tanks (310) are located inside the base (1).

5. The broadband low-scattering integrated antenna structure according to claim 4, characterized in that: The fixing plate (311) is fixedly installed on the base (1); A set of rotating shafts (312) is provided between the two sets of fixed plates (311).

6. The broadband low-scattering integrated antenna structure according to claim 4, characterized in that: A rotating plate (314) is rotatably connected to the rotating shaft (312). A reset spring (313) is provided at the connection between the rotating plate (314) and the rotating shaft (312) to drive the rotating plate (314) to reset.

7. The broadband low-scattering integrated antenna structure according to claim 4, characterized in that: A set of connecting blocks (315) are fixedly installed at the lower end of the rotating plate (314). A set of rubber blocks (316) are fixedly installed at the lower end of the connecting block (315), and the lower end of the rubber blocks (316) is arc-shaped; The support plate (317) is fixedly installed on the inner wall of the sliding cylinder (210), and the water filter tank (310) is located directly below the rotating plate (314).

8. The broadband low-scattering integrated antenna structure according to claim 1, characterized in that: A set of mounting plates (110) are fixedly installed at the lower end of the base (1). The mounting plate (110) is connected to the hull by nuts (111).

9. The broadband low-scattering integrated antenna structure according to claim 8, characterized in that: The lower end of the base (1) is provided with a set of connecting grooves (112) for connecting with the hull connecting seat.