A high power small coupling

Abstract

The utility model provides a kind of small coupler of high power, the purpose is to solve the technical problem of the overall physical size of large power coupler under traditional process architecture.The coupler includes: shell, its inside has the passage through two ends, the side of the passage is equipped with installation slot;Main line, it is equipped in the passage, and its two ends respectively from the passage two ends are worn;Sub-line, it is equipped in the installation slot, and the two ends of the sub-line are worn from the side of the shell;Wherein, the sub-line includes PCB outer layer and wire inner layer located in the inside of the PCB outer layer.In use, the equipment line to be detected is connected on the two ends of main line, and then the detection equipment is connected on one end of sub-line.The sub-line is set as the structure of PCB outer layer and wire inner layer, and the couping wire is made of PCB material with high dielectric constant, so that the overall physical size can be effectively shortened.

Description

Technical Field

[0001] This utility model relates to a coupler, specifically a high-power small coupler. Background Technology

[0002] In high-power radio frequency applications, coaxial high-power couplers are key passive devices for achieving directional signal coupling. Current mainstream high-performance implementations generally employ an air stripline fabrication structure. This structure uses air as the primary medium, with the inner conductor mechanically supported and positioned by high-insulation-strength, low-loss polytetrafluoroethylene (PTFE) pads. Benefiting from the low-loss characteristics of air and the excellent insulation properties of PTFE, these couplers exhibit significant high power handling capabilities, typically ranging from hundreds of watts to several kilowatts. It is important to note that their actual maximum power handling is inversely proportional to the operating frequency; as the frequency increases, the power capacity decreases accordingly.

[0003] However, this traditional process architecture has several inherent limitations. Due to the extremely low relative permittivity of air, in order to achieve a broadband coupling design with multiple cascaded sections, the length of each transmission line needs to be increased accordingly to meet specific electrical length requirements. This inevitably leads to a significant increase in the overall physical size of the device, making it difficult to meet the urgent needs of modern systems for miniaturization and integration. Utility Model Content

[0004] To address the issue of large overall physical size in traditional coaxial high-power couplers, this invention provides a high-power miniature coupler. By setting the secondary line as the outer layer of the PCB and the inner layer of the wire, and using the PCB material with a high dielectric constant as the coupling wire, the overall physical size can be effectively shortened.

[0005] The technical solution of this utility model is:

[0006] A high-power, small coupler, comprising:

[0007] The housing has a channel extending through both ends inside, and the side of the channel is provided with a mounting groove;

[0008] The main line is located within the channel, with its two ends exiting from both ends of the channel.

[0009] A secondary wire is disposed in the mounting groove, and both ends of the secondary wire protrude from the side of the housing;

[0010] The secondary line includes an outer PCB layer and an inner wire layer located inside the outer PCB layer.

[0011] Optionally, a connection terminal is provided at each of the two ends of the housing.

[0012] Optionally, the main line includes a conductor located within the channel, with both ends of the conductor connected to the connecting terminal.

[0013] Optionally, there is a gap between the outer surface of the conductor and the inner wall of the channel.

[0014] Optionally, a signal output terminal is installed at one end of the sub-line, and an absorption load is installed at the other end.

[0015] Optionally, a mounting slot is provided on each side of the channel, and a secondary line is provided in each of the two mounting slots.

[0016] Optionally, the signal output terminals and the absorption load on the two sub-lines are installed in opposite directions.

[0017] Optionally, the secondary line has an overall U-shaped structure, with a section in the middle located on the side of the channel.

[0018] Optionally, the width of the middle section of the sub-line increases progressively.

[0019] Optionally, the width of one end of the secondary line connected to the signal output terminal is smaller than the width of the other end.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] By setting the secondary line as the outer layer of the PCB and the inner layer of the wire, and using the PCB material with a high dielectric constant as the coupling wire, the overall physical size can be effectively shortened. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the sub-line. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] Example:

[0029] See Figure 1 and Figure 2 This embodiment discloses a high-power miniature coupler, including a housing 10, a main line 20 and a secondary line 30. The housing 10 is composed of two symmetrical parts. A channel 11 is provided inside the housing 10, which passes through both ends of the housing 10. A mounting groove 12 is provided on the side of the channel 11, with both ends of the mounting groove 12 extending out from one side of the housing 10. In addition, the middle part of the mounting groove 12 is in communication with the channel 11.

[0030] The overall structure of channel 11 is a cylindrical spatial structure, and the mounting groove 12 is a shallow groove with a rectangular cross-section.

[0031] The main line 20 is installed in the channel 11, and both ends of the main line 20 pass through the two ends of the channel 11 respectively. At the same time, the two ends of the main line 20 are connected to the two ends of the housing 10 through the connecting structure, so that the main line 20 is in a straight state in the channel 11.

[0032] The secondary line 30 is laid in the mounting groove 12, and the direction of the secondary line 30 is the same as the structure of the mounting groove 12, so that both ends of the secondary line 30 pass out from one side of the housing 10.

[0033] The sub-line 30 includes a PCB outer layer 31 and a wire inner layer 32. The PCB outer layer 31 completely wraps the wire inner layer 32, which is generally made of copper.

[0034] In use, connect the circuit of the device to be tested to both ends of the main line 20, and then connect the testing device to one end of the auxiliary line 30.

[0035] This embodiment sets the sub-line 30 as the outer layer 31 of the PCB and the inner layer 32 of the wire, and uses the PCB material with a high dielectric constant as the coupling wire, which can effectively shorten the overall physical size.

[0036] In one specific embodiment:

[0037] A connection terminal 13 is provided at each end of the housing 10, and the two connection terminals 13 are respectively connected to the two ends of the main line 20. By providing the connection terminals 13, the main line 20 is fixed to the housing 10, and the main line 20 is conveniently connected to the cable of the equipment to be tested.

[0038] In another specific embodiment:

[0039] The main line 20 includes a conductor located within the channel 11, with both ends of the conductor connected to the connecting terminals 13. A gap exists between the outer surface of the conductor and the inner wall of the channel 11.

[0040] By controlling the inner diameter of channel 11, the distance between the outer surface of the conductor and the inner wall of channel 11 can be controlled, thereby adjusting the coupling ratio. Furthermore, this gap can be used as the resistance between the conductor and the secondary line 30 for impedance matching.

[0041] In another specific embodiment:

[0042] One end of the sub-line 30 is equipped with a signal output terminal 33, and the other end is equipped with an absorption load 34. It is connected to the test equipment through the signal output terminal 33. The excess microwave signal in the sub-line 30 is converted into heat through the absorption load 34. Therefore, a heating material is provided in the absorption load 34.

[0043] In another specific embodiment:

[0044] Each side of channel 11 has a mounting slot 12, and each of the two mounting slots 12 contains a secondary line 30. The purpose of providing two mounting slots 12 and two secondary lines 30 is to provide more microwave signals.

[0045] Preferably, the signal output terminals 33 and the absorption load 34 on the two secondary lines 30 are installed in opposite directions, which enables the provision of directional microwave signals.

[0046] In another specific embodiment:

[0047] The secondary line 30 has a three-section U-shaped structure. The middle section of the secondary line 30 is located on the side of the channel 11, and the two ends of the secondary line 30 extend out from one side of the housing 10 and are respectively connected to the signal output terminal 33 and the absorption load 34.

[0048] In this embodiment, the main section of the secondary line 30 that generates microwave signals during operation is the middle section.

[0049] Preferably, the width of the middle section of the sub-line 30 increases progressively. By using different widths, the coupling of each section is different, thereby achieving broadband coupling.

[0050] Generally, the width of one end of the secondary line 30 connected to the signal output port is smaller than the width of the other end.

[0051] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A high-power miniature coupler, characterized in that, include: The housing has a channel extending through both ends inside, and the side of the channel is provided with a mounting groove; The main line is located within the channel, with its two ends exiting from both ends of the channel. A secondary cable is provided in the mounting groove, and both ends of the secondary cable protrude from the side of the housing; The secondary line includes an outer PCB layer and an inner wire layer located inside the outer PCB layer.

2. The high-power miniature coupler according to claim 1, characterized in that, The housing is provided with a connection terminal at each of its two ends.

3. The high-power miniature coupler according to claim 2, characterized in that, The main line includes a conductor located within the channel, with both ends of the conductor connected to the connecting terminals.

4. The high-power miniature coupler according to claim 3, characterized in that, There is a gap between the outer surface of the conductor and the inner wall of the channel.

5. The high-power miniature coupler according to claim 1, characterized in that, One end of the sub-line is equipped with a signal output terminal, and the other end is equipped with an absorption load.

6. The high-power miniature coupler according to claim 5, characterized in that, Each side of the channel is provided with a mounting slot, and each of the two mounting slots is provided with a secondary wire.

7. The high-power miniature coupler according to claim 6, characterized in that, The signal output terminals and absorption loads on the two sub-lines are installed in opposite directions.

8. The high-power miniature coupler according to claim 5, characterized in that, The secondary line has a U-shaped structure, with a section in the middle located on the side of the channel.

9. The high-power miniature coupler according to claim 8, characterized in that, The width of the middle section of the sub-line increases progressively.

10. The high-power miniature coupler according to claim 9, characterized in that, The width of one end of the secondary line connected to the signal output terminal is smaller than the width of the other end.

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