A combined switch matrix structure

By designing a combined switch matrix structure, using a combination of encapsulation shells, convex shells, expansion shells, and connectors, impedance matching and broadband transmission of high-frequency signals are achieved, solving the problem of insufficient space between modules and simplifying the installation process.

CN224537312UActive Publication Date: 2026-07-21NANJING HUAHANG MICROELECTRONICS TECH DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING HUAHANG MICROELECTRONICS TECH DEV CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional interconnection methods are unable to meet the impedance matching and broadband signal transmission requirements of high-frequency signals between different layers, resulting in signal reflection and frequency offset problems. At the same time, the cable connections between modules lead to insufficient space.

Method used

It adopts a combined switch matrix structure, and achieves vertical interconnection through the combination of package shell, convex shell, expansion shell and connector. Signal transmission is carried out by microstrip connection and threaded connection, and it is fixed by screws and threaded holes. The power supply system is integrated on the PCB board, and an aluminum alloy shell is used to meet the requirements of lightweight.

Benefits of technology

It solves the problems of impedance matching and limited bandwidth, as well as the problem of insufficient space between modules, achieving signal integrity and efficient transmission, and simplifying the installation process without the need to rearrange interfaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a combined switch matrix structure, including, package shell, the package shell one end is provided with the convex shell, the convex shell one side is provided with and places the groove, and the convex shell is provided with first connector, places the groove is provided with second connector, second connector and first connector pass through the microstrip connection, the utility model can solve the question of the insufficient space due to the cable link between the modules, and the impedance matching and bandwidth limited problem are solved by using the vertical interconnection mode, and the whole system is convenient to install, does not need to rearrange the interface.
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Description

Technical Field

[0001] This utility model belongs to the field of microwave product technology, specifically a combined switch matrix structure. Background Technology

[0002] Microwave product modules, as components of microwave systems, are widely used in fields such as communication and detection. Based on function, they generally include amplification, switching, power splitting and combining, filtering, and frequency conversion. As a crucial part of microwave module products, structural components primarily house microwave devices, providing shielding and heat dissipation, thus helping the microwave module achieve its specific microwave performance.

[0003] As microwave applications expand to higher frequency bands, such as millimeter-wave, traditional interconnect methods are insufficient to meet signal transmission requirements. Specialized vertical interconnect technologies are needed to address impedance matching and loss issues during high-frequency signal transmission between different layers. Vertical interconnects solve impedance matching problems because parameters of vertical interconnect structures, such as vias (diameter, copper plating thickness, dielectric layer thickness), can lead to impedance discontinuities, causing signal reflections, affecting signal integrity, and limiting bandwidth. Furthermore, many existing vertical interconnect technologies use narrowband matching methods, which are insufficient for broadband signal transmission and may cause frequency offset issues in wideband applications. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given the following technical problems in the existing technology: Solving the problem of insufficient space caused by the connection between modules using cables.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a combined switch matrix structure, comprising,

[0007] The encapsulation shell has a convex shell at one end, a placement groove on one side of the convex shell, a first connector at the convex shell, and a second connector at the placement groove. The second connector and the first connector are connected by a microstrip.

[0008] As a preferred technical solution of a combined switch matrix structure, an expansion shell is fixed at the placement slot, and the second connector is fixed on the expansion shell.

[0009] As a preferred technical solution for a combined switch matrix structure, the second connector and the first connector are connected through a connector module.

[0010] As a preferred technical solution for a combined switch matrix structure, the other end of the package shell is provided with a rectangular connector that connects to the second connector and the first connector.

[0011] As a preferred technical solution of a combined switch matrix structure, the convex shell is provided with a first pin hole on its side and the extended shell is provided with a positioning pin hole on its side, with the first pin hole being embedded in the positioning pin hole.

[0012] As a preferred technical solution for a combined switch matrix structure, the convex shell has a first through hole on its side and the extended shell has a first threaded hole on its side.

[0013] As a preferred technical solution for a combined switch matrix structure, the convex shell has a third threaded hole on its side, the expansion shell has a second threaded hole on its side, and one end of the connector module has an external thread that connects to the second threaded hole.

[0014] The advantages of this invention are: it can solve the problem of insufficient space caused by connecting modules with cables, and solve the problems of impedance matching and limited bandwidth by using vertical interconnection; and the whole system is easy to install and does not require rearranging the interfaces. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the exploded structure of the product in this utility model;

[0017] Figure 2 This is a schematic diagram of the overall appearance structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the packaging shell in this utility model;

[0019] Figure 4 This is a schematic diagram of the connector module in this utility model.

[0020] Reference numerals: 102, placement slot; 100, encapsulation shell; 107, rectangular connector; 104, second connector; 103, first connector; 101a, first pin hole; 105a, positioning pin hole; 101b, first through hole; 105b, first threaded hole; 101, convex shell; 101c, third threaded hole; 105, expansion shell; 106, connector module; 105c, second threaded hole; 108, microstrip mounting slot; 106a, intermediate post; 106b, end post; 106c, slot; 106d, snap-fit; 106e, conductive rod; 109, placement slot. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] 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. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] Example 1

[0026] Reference Figures 1-4 This embodiment provides a combined switch matrix structure, including:

[0027] The encapsulation shell 100 has a protrusion 101 at one end, a placement groove 102 on one side of the protrusion 101, a first connector 103 at the protrusion 101, and a second connector 104 at the placement groove 102. The second connector 104 and the first connector 103 are connected by a microstrip.

[0028] An expansion shell 105 is fixed at the placement slot 102, and a second connector 104 is fixed to the expansion shell 105.

[0029] The second connector 104 and the first connector 103 are connected via connector module 106.

[0030] The other end of the enclosure 100 is provided with a rectangular connector 107, which is connected to the second connector 104 and the first connector 103 via a feeder board and microstrip.

[0031] The convex shell 101 has a first pin hole 101a on its side, and the extended shell 105 has a positioning pin hole 105a on its side. The first pin hole 101a is embedded in the positioning pin hole 105a.

[0032] The convex shell 101 has a first through hole 101b on its side, and the extended shell 105 has a first threaded hole 105b on its side. Bolts pass through the first through hole 101b and the first threaded hole 105b for bolt connection.

[0033] The convex shell 101 has a third threaded hole 101c on its side, the expansion shell 105 has a second threaded hole 105c on its side, and the connector module 106 has an external thread at one end that connects to the second threaded hole 105c.

[0034] This invention provides a structural form consisting of two microwave modules and a vertical interconnection structure. Based on the system link structure diagram, the two microwave modules and the vertical interconnection module are vertically interconnected to form a unified structure, allowing the external RF interfaces of both modules to be exposed and used normally without the need for additional RF interfaces.

[0035] The power supply system for this module is integrated onto a single PCB board, using a J30-9ZKP rectangular connector as the external interface to power the entire system. It provides power and control signals to the entire assembly. The system structure is secured with screws, resulting in a simple and compact design.

[0036] This utility model provides a combined switch matrix structure. The structure is simple and easy to operate, which can solve the problem of insufficient space caused by cable connection between modules. It uses vertical interconnection to solve the problems of impedance matching and limited bandwidth. Furthermore, the entire system is easy to install and does not require re-arrangement of interfaces. It adopts a weight reduction design, and the housing material is made of aluminum alloy to meet the requirements of lightweight design.

[0037] like Figure 2The product has a rectangular cube structure with dimensions of 90×80×20 (mm). One end has five input ports (L02_IN) and four output ports (L02_OUT); the other end has a power supply interface (J30-9ZKP); the bottom of the product has four Φ2.4 through holes as mounting holes, distributed around the perimeter of the product.

[0038] like Figure 1 The product consists of functional modules and an outer housing. The functional modules include a rectangular connector 107, a second connector 104, and a first connector 103. The second connector 104 and the first connector 103 are connected by a connector module 106.

[0039] like Figure 3 As shown, Φ1×5.5 first pin holes 101a and positioning pin holes 105a are opened at the four corners of the encapsulation shell 100 and the expansion shell 105. The positions of the encapsulation shell 100 and the expansion shell 105 are fixed through these two pin holes using four Φ1×10 positioning pins. Three M2 second threaded holes are opened on the encapsulation shell 100 and three corresponding Φ2.4 through holes are opened on the expansion shell 105. The encapsulation shell 100 and the expansion shell 105 are fastened and fixed by three M2 screws. An M3 (fine thread) threaded hole is opened in the expansion shell 105, which connects with the external thread on the connector module 106 to connect the microstrip between the second connector 104 and the first connector 103, thereby realizing the efficient transmission of microwave signals in different planes.

[0040] Specifically, the connector module 106 includes an intermediate post 106a and end posts 106b connected to both ends of the intermediate post 106a. The inner side of the end post 106b is provided with a slot 106c, and the two ends of the intermediate post 106a are provided with buckles 106d. The slot 106c is fitted onto the buckles 106d. A conductive rod 106e is provided through the end post 106b. The outer side of the end post 106b is provided with an external thread. The two end posts 106b are respectively connected to the first threaded hole 101c on the encapsulation shell 100 and the second threaded hole 105c on the expansion shell 105.

[0041] After the two end posts 106b are threadedly connected to the encapsulation shell 100 and the expansion shell 105 respectively, they engage with the middle post 106a to achieve conductivity, thereby connecting the second connector 104 to the microstrip in the encapsulation shell 100.

[0042] Furthermore, a microstrip mounting groove 108 is provided on one side of the package shell 100, and the microstrip is disposed in the microstrip mounting groove 108. It should be noted that the specific circuit layout of the microstrip is not shown in this utility model. This application specifically shows the splicing connection structure of two connectors and the microstrip; the conductive rod 106e penetrates the package shell 100 and extends into the microstrip mounting groove 108 to connect with the microstrip, and the first connector 103 is also connected with the microstrip.

[0043] Five first connectors 103 and four second connectors 104 are provided, with the second connectors 104 and the first connectors 103 arranged alternately.

[0044] On the other side of the enclosure 100, there is a placement slot 109, in which a feeder board is placed. The rectangular connector 107 is connected to the microstrip through the feeder board. The feeder board is a board structure used for conducting electricity, and the circuit wiring on it is not shown.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A combined switch matrix structure, characterized in that: include, A packaging shell (100) is provided with a convex shell (101) at one end, a placement groove (102) is provided on one side of the convex shell (101), a first connector (103) is provided at the convex shell (101), and a second connector (104) is provided at the placement groove (102). The second connector (104) and the first connector (103) are connected by a microstrip.

2. The combined switch matrix structure according to claim 1, characterized in that: An expansion shell (105) is fixed at the placement slot (102), and the second connector (104) is fixed on the expansion shell (105).

3. The combined switch matrix structure according to claim 2, characterized in that: The second connector (104) and the first connector (103) are connected via connector module (106).

4. The combined switch matrix structure according to claim 3, characterized in that: The other end of the encapsulation shell (100) is provided with a rectangular connector (107) that connects to the second connector (104) and the first connector (103).

5. The combined switch matrix structure according to claim 4, characterized in that: The convex shell (101) has a first pin hole (101a) on its side, and the extended shell (105) has a positioning pin hole (105a) on its side, with the first pin hole (101a) being embedded in the positioning pin hole (105a).

6. The combined switch matrix structure according to claim 5, characterized in that: The convex shell (101) has a first through hole (101b) on its side, and the extended shell (105) has a first threaded hole (105b) on its side.

7. The combined switch matrix structure according to claim 6, characterized in that: The convex shell (101) has a third threaded hole (101c) on its side, the expansion shell (105) has a second threaded hole (105c) on its side, and one end of the connector module (106) has an external thread that connects to the second threaded hole (105c).