A novel coplanar combline automotive radar waveguide antenna

Abstract

The utility model provides a novel coplanar comb-like automobile radar waveguide antenna relates to antenna technical field, including U type shell, the inside embedding of U type shell has U type panel, both sides inner wall of U type panel all are established and have the inlay groove, the inside all inlay groove has the coplanar panel, the surface mounting of coplanar panel has the feed network, comb-like antenna and radiating unit, the top and bottom of U type shell all equal interval fixed connection have the cooling fin, in the utility model, through the inlay groove of U type panel and the location design of cross board, coplanar panel can quickly inlay and accurate positioning, need not complex fastener, can improve the device assembly efficiency, and installation accuracy is high, effectively guarantees the stability of antenna electromagnetic performance, U type shell top and bottom are distributed cooling fin, greatly increase the heat exchange area, significantly improve the heat dissipation efficiency, simultaneously, the fin adopts detachable design, can replace different specifications fin according to radar power, realizes the dynamic adaptation of heat dissipation capacity.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to a novel coplanar comb-shaped automotive radar waveguide antenna. Background Technology

[0002] As autonomous driving technology evolves to higher levels, vehicle-mounted millimeter-wave radar faces increasingly higher demands for accuracy, reliability, and maintainability in environmental perception. Coplanar comb waveguide antennas, with their advantages of wide bandwidth, low loss, and ease of integration, have become one of the core components of vehicle-mounted radar.

[0003] Traditional radar waveguide antennas suffer from cumbersome installation, uncontrollable heat dissipation efficiency, and high maintenance costs, making it difficult to meet the demands of rapid assembly, efficient thermal management, and convenient operation and maintenance in automotive applications. Therefore, developing a novel coplanar comb-shaped automotive radar waveguide antenna that is easy to install, has efficient heat dissipation, and is easy to maintain is of great significance for improving the overall performance and lifecycle value of automotive radar systems. Utility Model Content

[0004] The purpose of this invention is to solve the problems of cumbersome installation, uncontrollable heat dissipation efficiency, and high maintenance costs of existing radar waveguide antennas, which make it difficult to meet the needs of rapid assembly, efficient thermal management, and convenient operation and maintenance in vehicle scenarios. Therefore, a novel coplanar comb-shaped automotive radar waveguide antenna is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel coplanar comb-shaped automotive radar waveguide antenna, comprising a U-shaped housing, wherein a U-shaped panel is embedded inside the U-shaped housing, and slots are provided on both sides of the inner wall of the U-shaped panel, wherein a common panel is embedded inside the slots, and a feed network, a comb-shaped antenna, and a radiating element are mounted on the surface of the common panel, and heat dissipation fins are fixedly connected at equal intervals to the top and bottom of the U-shaped housing.

[0006] Preferably, an L-shaped support plate is fixedly connected to the bottom of the U-shaped shell and near the four corners, and the surface of the L-shaped support plate is provided with mounting holes.

[0007] Preferably, the inner walls on both sides of the U-shaped panel are provided with limiting grooves above and below the groove, and a cross plate is embedded and slidably connected inside the limiting groove, and the cross plate is fixedly connected to the U-shaped outer shell.

[0008] Preferably, the surface of the U-shaped outer shell has perforations near both corners, and the surface of the U-shaped panel has round holes near both corners at one end.

[0009] Preferably, the perforation and the circular hole are aligned with each other.

[0010] Preferably, the cross plate is attached to the surface of the common panel.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, through the groove of the U-shaped insert and the limiting design of the cross plate, the common panel can be quickly embedded and accurately positioned without the need for complex fasteners, which can improve the assembly efficiency of the device and ensure high installation accuracy, effectively guaranteeing the stability of the antenna's electromagnetic performance.

[0012] 2. In this utility model, heat dissipation fins are evenly distributed on the top and bottom of the U-shaped shell, which greatly increases the heat exchange area and significantly improves the heat dissipation efficiency; at the same time, the fins adopt a detachable design, and different specifications of fins can be replaced according to the radar power to achieve dynamic adaptation of heat dissipation capacity.

[0013] 3. In this utility model, the antenna adopts a modular design, and the common panel and heat dissipation fins can be easily disassembled and replaced without disassembling the entire antenna. This simplifies the operation and maintenance process, greatly reduces the time and economic cost of later maintenance, and improves the reliability of the antenna throughout its entire life cycle. Attached Figure Description

[0014] Figure 1 This utility model presents a three-dimensional view of the overall structure of a novel coplanar comb-shaped automotive radar waveguide antenna; Figure 2 This utility model presents a partial three-dimensional structural view of a novel coplanar comb-shaped automotive radar waveguide antenna. Figure 3 A three-dimensional view of a novel coplanar comb-shaped automotive radar waveguide antenna with a U-shaped panel structure is presented for this utility model. Figure 4 This invention presents a partial structural plan view of a novel coplanar comb-shaped automotive radar waveguide antenna.

[0015] Legend: 1. U-shaped shell; 2. L-shaped support plate; 3. Mounting hole; 4. U-shaped panel; 5. Heat dissipation fins; 6. Slot; 7. Common panel; 8. Limiting slot; 9. Cross plate; 10. Feed network; 11. Comb antenna; 12. Radiation element; 13. Circular hole; 14. Perforation. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1, such as Figure 1-4 As shown, this utility model provides a novel coplanar comb-shaped automotive radar waveguide antenna, including a U-shaped shell 1, with a U-shaped panel 4 embedded inside the U-shaped shell 1. The inner walls on both sides of the U-shaped panel 4 are provided with slots 6, and a common panel 7 is embedded inside the slots 6. A feed network 10, a comb antenna 11, and a radiating element 12 are installed on the surface of the common panel 7. Heat dissipation fins 5 are fixedly connected at equal intervals to the top and bottom of the U-shaped shell 1.

[0019] The overall effect of embodiment 1 is that a U-shaped panel 4 is embedded inside the U-shaped shell 1, and grooves 6 are opened on both sides of the inner wall of the U-shaped panel 4. A common panel 7 is embedded inside the grooves 6, which can make the common panel 7 directly embedded in the grooves 6 and slide into the U-shaped panel 4. A power supply network 10, a comb antenna 11 and a radiating unit 12 are installed on the surface of the common panel 7, which can make the components integrated on a plane. Heat dissipation fins 5 are fixedly connected at equal intervals on the top and bottom of the U-shaped shell 1, which can dissipate heat from the device.

[0020] Example 2, as Figure 1-4 As shown, L-shaped support plates 2 are fixedly connected to the bottom of the U-shaped outer shell 1 and near the four corners. The surface of the L-shaped support plates 2 is provided with mounting holes 3. Limiting grooves 8 are provided on the inner walls of both sides of the U-shaped panel 4 and above and below the groove 6. A cross plate 9 is embedded and slidably connected inside the limiting groove 8. The cross plate 9 is fixedly connected to the U-shaped outer shell 1. Through holes 14 are provided on the surface of the U-shaped outer shell 1 and near the two corners. Round holes 13 are provided on the surface of the U-shaped panel 4 and near the two corners of one end. The through holes 14 and round holes 13 are aligned with each other. The cross plate 9 is in contact with the surface of the common panel 7.

[0021] The overall effect of Embodiment 2 is as follows: L-shaped support plates 2 are fixedly connected to the bottom of the U-shaped outer shell 1 near the four corners. The surface of the L-shaped support plates 2 is provided with mounting holes 3, which can be used to install and fix the device; limit grooves 8 are provided on both sides of the inner wall of the U-shaped insert 4 above and below the groove 6. A cross plate 9 is inserted and slidably connected inside the limit groove 8. The cross plate 9 is fixedly connected to the U-shaped outer shell 1, which can make the cross plate 9 contact the surface of the common panel 7, so that heat can be transferred to the heat dissipation fins 5; through holes 14 are provided on the surface of the U-shaped outer shell 1 near the two corners. Round holes 13 are provided on the surface of the U-shaped insert 4 near one end of the two corners, which can be used to pass bolts through the round holes 13 and through holes 14, so as to install and fix the U-shaped insert 4; the alignment of the through holes 14 and round holes 13 can facilitate the passing of bolts through the through holes 14 and round holes 13; the contact between the cross plate 9 and the surface of the common panel 7 can improve the heat transfer rate.

[0022] Working Principle: During installation, the common panel 7 is embedded into the groove 6 of the U-shaped panel 4, while the cross plate 9 slides along the limiting groove 8 of the U-shaped panel 4 and fits against the surface of the common panel 7, achieving rapid positioning and fixation of the common panel 7. Then, the U-shaped panel 4 with the common panel 7 assembled is embedded into the U-shaped outer shell 1. The alignment structure of the through hole 14 and the round hole 13, along with fasteners, completes the overall assembly. During operation, the comb antenna 11 and the radiating element 12 transmit and radiate millimeter-wave signals through the feed network 10. The heat generated during operation is conducted through the common panel 7 to the U-shaped panel 4 and the U-shaped outer shell 1, and then exchanges heat with the outside air through the upper and lower distributed heat dissipation fins 5, achieving efficient heat dissipation. When it is necessary to replace the heat dissipation fins 5, the fasteners at the through hole 14 and the round hole 13 are removed, allowing the old fins to be removed and replaced with new fins of the new specification, completing convenient maintenance. The L-shaped support plate 2 and the mounting hole 3 are used to fix the antenna as a whole to the vehicle-mounted equipment, ensuring installation stability.

[0023] The wiring diagrams of the feed network 10, comb antenna 11, and radiating unit 12 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring arrangement of the feed network 10, comb antenna 11, and radiating unit 12 will not be explained in detail.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel coplanar comb-shaped automotive radar waveguide antenna, comprising a U-shaped housing (1), characterized in that: The U-shaped shell (1) has a U-shaped panel (4) embedded inside. The inner walls of both sides of the U-shaped panel (4) are provided with grooves (6). The grooves (6) are all embedded with common panels (7). The surface of the common panels (7) is equipped with a feed network (10), a comb antenna (11) and a radiating unit (12). The top and bottom of the U-shaped shell (1) are fixedly connected with heat dissipation fins (5) at equal intervals.

2. The novel coplanar comb-shaped automotive radar waveguide antenna according to claim 1, characterized in that: The bottom of the U-shaped shell (1) and near the four corners are all fixedly connected to L-shaped support plates (2), and the surface of the L-shaped support plates (2) is provided with mounting holes (3).

3. The novel coplanar comb-shaped automotive radar waveguide antenna according to claim 1, characterized in that: Limiting grooves (8) are provided on both inner walls of the U-shaped panel (4) and above and below the groove (6). A cross plate (9) is embedded and slidably connected inside the limiting groove (8). The cross plate (9) is fixedly connected to the U-shaped shell (1).

4. A novel coplanar comb-shaped automotive radar waveguide antenna according to claim 1, characterized in that: The surface of the U-shaped outer shell (1) and near the two corners are provided with perforations (14), and the surface of the U-shaped panel (4) and near the two corners of one end are provided with round holes (13).

5. A novel coplanar comb-shaped automotive radar waveguide antenna according to claim 4, characterized in that: The perforation (14) is aligned with the circular hole (13).

6. A novel coplanar comb-shaped automotive radar waveguide antenna according to claim 3, characterized in that: The cross plate (9) is attached to the surface of the common plate (7).

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