Novel port adapter suitable for waveguide antenna

Abstract

The utility model relates to a novel port adapter suitable for a waveguide antenna, and relates to the technical field of microwave devices. The waveguide antenna comprises a port base arranged on the surface of the waveguide antenna, the port base abuts against a chip, a plurality of chip ports are formed in the surface of the chip in a penetrating mode, and a plurality of port slots are formed in the position, corresponding to the chip ports, of the port base in the thickness direction in a penetrating mode; a plurality of protruding elements and connecting structures are arranged on the surface of the port base, and a plurality of groups of first bonding structures, second bonding structures and third bonding structures consisting of different numbers of protruding elements and connecting structures are also arranged on the surface of the port base; the first bonding structures, the second bonding structures and the third bonding structures abut against the surface of the chip. The port adapter has the advantages that higher-degree-of-freedom design of the port adapter is achieved, the machining time is shortened, and the machining and manufacturing efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of microwave device technology, and in particular to a novel port adapter suitable for waveguide antennas. Background Technology

[0002] With the rapid development of China's economy and the improvement of people's living standards, automobiles, as an important means of transportation, have begun to enter thousands of households. However, the traffic problems brought about by this have become increasingly prominent. Vehicle-mounted collision avoidance radar, as an active collision avoidance device that can issue alarms, is receiving more and more attention. In radar, waveguide antennas are widely used for their low-loss and high-efficiency transmission of electromagnetic waves. In waveguide antennas, waveguide transmission lines are a structure used to transmit electromagnetic waves. They are commonly used in high-frequency communication systems, radar systems, and microwave equipment. Their basic principle is to use the conductor boundary of the waveguide to limit the propagation of electromagnetic waves, thereby allowing them to propagate along the length of the waveguide. Furthermore, the transmission line structure of the gap waveguide scheme is also widely used in the design of waveguide antenna feed lines and port adapters.

[0003] In the existing technology, the transmission line structure using the gap waveguide scheme is composed of cylinders with a certain periodic arrangement. If CNC machining is used, for millimeter-wave radar antennas, the number of cylinders can reach hundreds or thousands, resulting in a long machining time and low design freedom. It is also difficult to flexibly cooperate with chips and waveguide antennas of different sizes and specifications, so it needs to be improved. Utility Model Content

[0004] To achieve greater design flexibility for port adapters, shorten processing time, and improve manufacturing efficiency, this application provides a novel port adapter suitable for waveguide antennas.

[0005] The novel port adapter for waveguide antennas provided in this application adopts the following technical solution:

[0006] A novel port adapter for waveguide antennas includes a port base disposed on the surface of the waveguide antenna, the port base abutting against a chip, the chip surface having a plurality of chip ports extending through it, and the port base having a plurality of port slots extending through it along the thickness direction corresponding to the chip ports; the surface of the port base is provided with a plurality of protruding elements and connecting structures, and the surface of the port base is also provided with a plurality of sets of first bonding structures, second bonding structures and third bonding structures composed of different numbers of protruding elements and connecting structures, and a plurality of the first bonding structures, second bonding structures and third bonding structures abutting against the chip surface.

[0007] By adopting the above technical solution, the chip port and port slot facilitate the assembly of the port base with the chip. The protruding elements, first bonding structure, second bonding structure and third bonding structure provided on the surface of the port base can be set in corresponding numbers according to different specifications of chips and waveguide antennas, thereby improving the design freedom and flexibility. Therefore, the port adapter of this application can be flexibly adjusted according to different application scenarios, which can not only meet the operating frequency of the waveguide port, but also achieve impedance matching with such as waveguide and waveguide-to-microstrip feed ports.

[0008] Preferably, both the protruding element and the connecting structure are bonded to the surface of the port base.

[0009] By adopting the above technical solution, the bonding method can effectively improve the assembly efficiency of the port adapter of this application. Different bonding structures can be selected for flexible bonding according to the power supply method applied. While realizing a higher degree of design freedom, it can also significantly shorten the processing time and improve the processing and manufacturing efficiency.

[0010] Preferably, the first bonding structure includes two protruding elements and a connecting structure disposed between the two protruding elements; the second bonding structure includes three protruding elements and a connecting structure disposed between the three protruding elements; and the third bonding structure includes four protruding elements and a connecting structure disposed between the four protruding elements.

[0011] By adopting the above technical solution, the first, second, and third bonding structures with different structures can be flexibly selected according to the actual application scenario, thereby improving the applicability and flexibility of the port adapter of this application.

[0012] Preferably, the protruding element is cylindrical, square, stepped, or other irregularly shaped.

[0013] By adopting the above technical solution, the shape selection of the highlighting element is more diverse, which improves the flexibility of the port adapter application of this application.

[0014] Preferably, the step height of the connection structure is no greater than the sum of the height of the protruding element and the distance between the surface of the protruding element and the chip.

[0015] By adopting the above technical solution, it is possible to prevent the excessive height of the connection structure from affecting the waveguide transmission of the protruding components, and it is also convenient to improve the tightness of the connection between the chip and the port base.

[0016] Preferably, each of the port slots is surrounded by four protruding elements.

[0017] By adopting the above technical solution, the waveguide transmission capability of the port adapter can be effectively improved.

[0018] Preferably, the shape of the port slot and the chip port can be a rectangular waveguide aperture, an ellipse, or other waveguide transmission structure capable of transmitting a specified mode.

[0019] By adopting the above technical solutions, the selection of port slots and chip port shapes becomes more diverse, improving the flexibility of the port adapter application of this application.

[0020] Preferably, all of the protruding elements are located within the range of the port base surface.

[0021] By adopting the above technical solution, the contact area between the protruding element and the port base can be increased, thereby improving the connection stability of the protruding element, reducing the probability of the protruding element falling off, and thus ensuring the stability of the port adapter during operation.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The chip port and port slot facilitate the assembly of the port base with the chip. The protruding elements, first bonding structure, second bonding structure and third bonding structure provided on the surface of the port base can be set in corresponding numbers according to different specifications of chips and waveguide antennas, so as to improve the design freedom and flexibility. Therefore, the port adapter of this application can be flexibly adjusted according to different application scenarios, which can not only meet the operating frequency of the waveguide port, but also achieve impedance matching with such as waveguide and waveguide to microstrip feed ports.

[0024] 2. The bonding method can effectively improve the assembly efficiency of the port adapter of this application. Different bonding structures can be selected for flexible bonding according to the power supply method used. While realizing a higher degree of design freedom, it can also significantly shorten the processing time and improve the processing and manufacturing efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the waveguide antenna and port base according to an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the connection structure between the chip and the port base in an embodiment of this application.

[0027] Figure 3 This is a schematic diagram of the chip structure in an embodiment of this application.

[0028] Figure 4 This is a schematic diagram of the structure of a novel port adapter suitable for waveguide antennas according to an embodiment of this application.

[0029] Figure 5 This is a top view of the port base according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Waveguide antenna; 2. Port base; 21. Port slot; 22. Protruding element; 23. Connection structure; 24. First bonding structure; 25. Second bonding structure; 26. Third bonding structure; 3. Chip; 31. Chip port. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a novel port adapter suitable for waveguide antennas. (Refer to...) Figure 1 , Figure 2 and Figure 3 The device includes a port base 2 disposed on the surface of the waveguide antenna 1. The other side of the port base 2 is connected to the chip 3. The surface of the chip 3 has a plurality of chip ports 31. The port base 2 has a plurality of port slots 21 that pass through the chip ports 31. In this embodiment, the shapes of the port slots 21 and the chip ports 31 can be dog bone shaped, rectangular waveguide aperture shaped, elliptical, or other waveguide transmission structures that can transmit a specified mode, making the shape selection more diverse and improving the flexibility of the port adapter application of this application.

[0033] Reference Figure 4 and Figure 5 The port base 2 has several protruding elements 22 and connecting structures 23 bonded to its surface. All protruding elements 22 are located within the range of the port base 2. The port base 2 also has several sets of first bonding structures 24, second bonding structures 25 and third bonding structures 26, each consisting of a different number of protruding elements 22 and connecting structures 23, bonded to its surface. In this embodiment, the first bonding structure 24 includes two protruding elements 22 and a connecting structure 23 disposed between the two protruding elements 22; the second bonding structure 25 includes three protruding elements 22 and a connecting structure 23 disposed between the three protruding elements 22; and the third bonding structure 26 includes four protruding elements 22 and a connecting structure 23 disposed between the four protruding elements 22. The first bonding structure 24, the second bonding structure 25 and the third bonding structure 26 with different structures can be flexibly selected according to the actual application scenario, which improves the applicability and flexibility of the port adapter of this application.

[0034] Reference Figure 4 and Figure 5Each port slot 21 is surrounded by four protruding elements 22 to ensure the waveguide transmission performance of the port adapter. In this embodiment, the protruding elements 22 are cylindrical, square, stepped, or other irregular structures to make the shape of the protruding elements 22 more diverse and improve the flexibility of the port adapter application of this application. The step height of the connecting structure 23 is not greater than the sum of the height of the protruding element 22 and the distance between the surface of the protruding element 22 and the chip 3.

[0035] The implementation principle of a novel port adapter for waveguide antenna 1 in this application embodiment is as follows: the chip port 31 and the port slot 21 facilitate the assembly of the port base 2 and the chip 3. The protruding elements 22, the first bonding structure 24, the second bonding structure 25 and the third bonding structure 26 provided on the surface of the port base 2 can be set in corresponding numbers according to different specifications of chip 3 and waveguide antenna 1, so as to improve the design freedom and flexibility. Therefore, the port adapter of this application can be flexibly adjusted according to different application scenarios. It can not only meet the operating frequency of the waveguide port, but also achieve impedance matching with such as waveguide and waveguide-to-microstrip feed ports. The bonding method can effectively improve the assembly efficiency of the port adapter of this application. Different bonding structures are selected for flexible bonding according to the applied feed method. While achieving a higher degree of design freedom, it can also significantly shorten the processing time and improve the processing and manufacturing efficiency.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel port adapter for waveguide antennas, comprising a port base disposed on the surface of the waveguide antenna, the port base abutting against a chip, characterized in that: The chip surface has several chip ports through it, and the port base has several port slots through it along the thickness direction corresponding to the chip ports; the port base surface is provided with several protruding elements and connecting structures, and the port base surface is also provided with several sets of first bonding structures, second bonding structures and third bonding structures composed of different numbers of protruding elements and connecting structures, and several first bonding structures, second bonding structures and third bonding structures abut against the chip surface.

2. A novel port adapter suitable for use with a waveguide antenna according to claim 1, characterized in that: Both the protruding element and the connecting structure are attached to the surface of the port base by adhesive bonding.

3. A novel port adapter suitable for use with a waveguide antenna according to claim 1, characterized in that: The first bonding structure includes two protruding elements and a connecting structure disposed between the two protruding elements; the second bonding structure includes three protruding elements and a connecting structure disposed between the three protruding elements; the third bonding structure includes four protruding elements and a connecting structure disposed between the four protruding elements.

4. A novel port adapter suitable for use with a waveguide antenna according to claim 3, characterized in that: The protruding element is shaped like a cylinder or a square stepped irregular structure.

5. A novel port adapter suitable for use with a waveguide antenna according to claim 3, characterized in that: The step height of the connection structure is no greater than the sum of the height of the protruding element and the distance between the surface of the protruding element and the chip.

6. A novel port adapter suitable for use with a waveguide antenna according to claim 1, characterized in that: Each of the port slots is surrounded by four protruding elements.

7. A novel port adapter suitable for use with a waveguide antenna according to claim 1, characterized in that: The shape of the port slot and chip port can be a rectangular waveguide aperture or an elliptical waveguide transmission structure capable of transmitting a specified mode.

8. A novel port adapter for waveguide antennas according to claim 1, characterized in that: Several of the protruding elements are located within the area of ​​the port base surface.

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