Multipath combiner

Abstract

The utility model discloses a multipath combiner, which belongs to the technical field of mobile communication and comprises four input ends and an output end, and an output microstrip, a transmission microstrip and an input microstrip which are gradually increased step by step are arranged between the input ends and the output end, so that the plurality of input ends are electrically connected with the output end. And a first isolation assembly is arranged between the two transmission micro-strips, and a second isolation assembly is arranged between the two adjacent input micro-strips. According to the multi-path combiner, the isolation degree in the multi-path combiner is enhanced through the resistors in the isolation assemblies, so that mutual crosstalk and interference between electric signals in the micro-strips are avoided, meanwhile, the resistors in the first isolation assemblies are grounded, and the second isolation micro-strips connected with the two first isolation micro-strips are correspondingly arranged, so that the power capacity of the multi-path combiner is improved; good application and market values are realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mobile communication technical field, concretely relates to a multi-channel combiner. BACKGROUND

[0002] With the development of communication technology, the combiner is very widely used in the field of communication and radio frequency. In the receiving channel, different signals are reasonably combined to improve the signal quality, the signal transmission efficiency and the isolation degree. In the transmitting channel, the combiner can avoid signal interference due to the good isolation degree. Due to the working characteristics, the combiner is applied in the fields of mobile communication station, radio antenna system, broadcast television transmitting tower and satellite communication.

[0003] The existing combiner has small power capacity and low isolation degree, so the application range of the combiner is small. Therefore, there is an urgent need for a combiner structure with large power capacity, high isolation degree and simple structure. UTILITY MODEL CONTENT

[0004] In view of one or more of the above defects or improvement requirements of the prior art, the utility model provides a multi-channel combiner which has high isolation degree, avoids signal crosstalk and has large power capacity and simple structure.

[0005] To achieve the above object, the utility model provides a multi-channel combiner which comprises four input ends and an output end, output microstrips, transmission microstrips and input microstrips are arranged between the input ends and the output end,

[0006] One end of the output microstrip is electrically connected with the output end, and the other end thereof is electrically connected with two transmission microstrips respectively, one end of the transmission microstrip away from the output microstrip is electrically connected with two input microstrips respectively, and the input microstrip is electrically connected with the input end in one-to-one correspondence.

[0007] As a further improvement of the utility model, a first isolation assembly is arranged between the two transmission microstrips, the first isolation assembly comprises two isolation units, and the isolation unit is arranged in one-to-one correspondence with the transmission microstrip,

[0008] The isolation unit comprises at least one first isolation microstrip and a first resistor, one end of the first isolation microstrip is electrically connected with the transmission microstrip, the other end thereof is electrically connected with one end of the first resistor, and one end of the first resistor away from the first isolation microstrip is grounded.

[0009] As a further improvement of the utility model, the transmission microstrip comprises a first microstrip segment arranged close to the output end and a second microstrip segment arranged close to the transmission microstrip,

[0010] The connection between the first microstrip segment and the second microstrip segment is a first connection position, and the first isolation microstrip is electrically connected to the first connection position.

[0011] As a further improvement of the present utility model, the isolation component further includes a second isolation microstrip, and both ends thereof are electrically connected to the two first isolation microstrips respectively.

[0012] As a further improvement of the present utility model, the input microstrip includes a fourth microstrip, a fifth microstrip, and a sixth microstrip that are electrically connected in sequence along the direction from the transmission microstrip to the input end.

[0013] The connection between the fourth microstrip segment and the fifth microstrip segment is a second connection position, and the connection between the fifth microstrip segment and the sixth microstrip segment is a third connection position.

[0014] As a further improvement of the present utility model, a second isolation component is provided between two adjacent input microstrips, and the second isolation component includes a second resistor and a third resistor.

[0015] Both ends of the second resistor are respectively connected to the two second connection positions, and both ends of the third resistor are respectively connected to the third connection position.

[0016] As a further improvement of the present utility model, the fourth microstrip segment and the fifth microstrip segment are in a "Ji" shape, and the corner of the fourth microstrip segment and the fifth microstrip segment is a 55° inverted right angle.

[0017] As a further improvement of the present utility model, the material of each microstrip is copper

[0018] and / or

[0019] The thickness of each microstrip is 0.035 mm.

[0020] As a further improvement of the present utility model, it further includes a housing, the output end is arranged at the top of the housing, and the input end is arranged on the side wall of the housing.

[0021] As a further improvement of the present utility model, the input ends are respectively arranged on the two lateral side walls of the housing, and two adjacent input ends are arranged at intervals in the vertical direction.

[0022] As long as the above-mentioned improved technical features do not conflict with each other, they can be combined with each other.

[0023] [[ID=第39]]Generally speaking, compared with the prior art, the above technical solution conceived by the present utility model has the following beneficial effects:

[0024] (1) The multi-way combiner of this utility model is provided with an output microstrip at the corresponding output terminal, and two transmission microstrips are configured at the corresponding output microstrips. Two input microstrips are configured for each of the two transmission microstrips. The input microstrips are matched one-to-one with the input terminals, thereby realizing the electrical connection between the four input terminals and one output terminal, so that the electrical signals in the four input terminals are combined and output to the output terminal.

[0025] (2) The multi-channel combiner of this utility model provides a first isolation component between two transmission microstrips. The first isolation component includes a first isolation microstrip and a first resistor electrically connected thereto. The first resistor is grounded to enhance the isolation between the two transmission microstrips, thereby avoiding interference and crosstalk between the electrical signals of the two transmission microstrips.

[0026] (3) The multi-way combiner of this utility model has a second isolation microstrip set between the two first isolation microstrips, and its two ends are respectively connected to the two first isolation microstrips, so that its terminal load can be directly grounded, effectively enhancing the heat dissipation performance of the combiner. Thus, a high-power capacity resistor can be selected as the first resistor, and the amplitude and phase consistency of the two transmission microstrips can also be guaranteed, with a high power capacity.

[0027] (4) The multi-channel combiner of this utility model has a second isolation component between two adjacent input microstrips, which includes a second resistor and a third resistor, and the resistor is connected to the connection point of the two adjacent microstrip segments to enhance the isolation and avoid interference and crosstalk between the electrical signals in the two adjacent input microstrips.

[0028] (5) The multi-channel combiner of this utility model also includes a housing, with both the input end and the output end set on the housing. The housing is made of metal and has a certain thickness to shield external signal interference. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the multi-way combiner in this embodiment of the utility model;

[0030] Figure 2 This is a block diagram of the multi-way combiner in an embodiment of this utility model;

[0031] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1, output terminal; 2, input terminal; 3, output microstrip; 4, first microstrip segment; 5, second microstrip segment; 6, first isolation microstrip; 7, third microstrip segment; 8, fourth microstrip segment; 9, fifth microstrip segment; 10, sixth microstrip segment; 11, first resistor; 12, second resistor; 13, third resistor. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] Example:

[0038] The multi-channel combiner in the preferred embodiment of this utility model is as follows: Figures 1-2 As shown, the combiner includes four input terminals and one output terminal. An output microstrip, a transmission microstrip, and an input microstrip are arranged sequentially from the output terminal to the input terminal, so that the electrical connection between one output terminal and the four input terminals can realize the combined output.

[0039] Specifically, one end of the output microstrip 3 is electrically connected to the output terminal 1, while its other end is electrically connected to the ends of the two transmission microstrips respectively. This connection point is the first combining position, and the electrical signals in the two transmission microstrips are output to the output microstrip 3 through the first combining. Further, two input microstrips are configured for each transmission microstrip. The end of the transmission microstrip away from the output microstrip 3 is electrically connected to the ends of the two input microstrips respectively. This connection point is the second combining position, and the electrical signals in the four input microstrips are output to the two transmission microstrips in a pairwise combining manner. The end of the input microstrip away from the transmission microstrip is electrically connected to the input terminal 2, so that the electrical signals of the four input terminals 2 are output to the output terminal 1 through two combinings.

[0040] Furthermore, a first isolation component is provided between the two transmission microstrips. The first isolation component includes two isolation units, which are configured in a one-to-one correspondence with the transmission microstrips. Each isolation unit includes a first isolation microstrip 6 and a first resistor 11. One end of the first isolation microstrip 6 is electrically connected to the transmission microstrip, and the other end is electrically connected to one end of the first resistor 11, while the other end of the resistor is grounded. This increases the isolation between the two transmission microstrips, thereby avoiding signal interference and crosstalk between the two transmission microstrips.

[0041] Furthermore, the transmission microstrip includes multiple microstrip segments of different widths, including a first microstrip segment 4 located near the output end 1 and a second microstrip segment 5 located near the transmission microstrip. The connection between the first microstrip segment 4 and the second microstrip segment 5 is a first connection point. A first isolation microstrip 6 is electrically connected to the first connection point, so that a first resistor 11 is located at the connection point, thereby enhancing the isolation. The width of the first isolation microstrip 6 is the same as the width of the second microstrip segment 5.

[0042] Further, the first isolation component further includes a second isolation microstrip, the two ends of which are respectively electrically connected to the two first isolation microstrips 6. The terminal load of the second isolation microstrip can be directly grounded, effectively enhancing the heat dissipation performance of the combiner. Thus, a resistor with a high power capacity can be selected as the first resistor 11, and the amplitude-phase consistency of the two transmission microstrips can also be ensured, with a relatively high power capacity. Further preferably, the second isolation microstrip includes a plurality of third microstrip segments 7.

[0043] In a preferred embodiment, the width of the first microstrip segment 4 is 0.27 mm, the width of the second microstrip segment 5 is 0.54 mm, the width of the third microstrip segment 7 is 2 mm, and the resistance value of the first resistor 11 is 50 Ω.

[0044] Further, each input microstrip also includes a plurality of microstrip segments with different widths, which include a fourth microstrip, a fifth microstrip, and a sixth microstrip that are electrically connected in sequence along the direction from the transmission microstrip to the input terminal 2. The connection between the fourth microstrip segment 8 and the fifth microstrip segment 9 is used as the second connection position, and the connection between the fifth microstrip segment 9 and the sixth microstrip segment 10 is used as the third connection position.

[0045] Further, the two input microstrips electrically connected to the same transmission microstrip are arranged close to each other, and a second isolation component is arranged between two adjacent input microstrips. The second isolation component is correspondingly configured with two, and the second isolation component includes a second resistor 12 and a third resistor 13. The two ends of the second resistor 12 are respectively connected to the two second connection positions, and the two ends of the third resistor 13 are respectively connected to the third connection positions, so as to enhance the isolation degree between two adjacent input microstrips, thereby avoiding signal interference and crosstalk between the two input microstrips. Further preferably, 0.4 mm copper foils are extended at the two second connection positions to form extended parts, and the two ends of the second resistor 12 are connected to the two extended parts. The connection mode between the third connection position and the third resistor 13 is the same as the above setting mode. Additionally, the resistance value of the second resistor 12 is 91 Ω, and the resistance value of the third resistor 13 is 240 Ω.

[0046] Further, the fourth microstrip segment 8 and the fifth microstrip segment 9 are in a "ji" shape, and the corner of the fourth microstrip segment 8 and the fifth microstrip segment 9 is a 55° chamfered right angle to enhance the microstrip structure strength. Further preferably, the width of the fourth microstrip segment 8 is 0.1987 mm, the width of the fifth microstrip segment 9 is 0.378 mm, and the sixth microstrip segment 10 is electrically connected to the input terminal 2 and the fifth microstrip segment 9 respectively, and its width has no specific requirement. Further, the width of the output microstrip 3 is 0.54 mm.

[0047] Further, the material of each microstrip is copper. Further preferably, its thickness is 0.035 mm.

[0048] Further, the multiplexer further includes a housing, and the input end 2 and the output end 1 are provided on the housing. Further preferably, the housing is made of a metal material and has a certain thickness to shield external signal interference. A chamber is formed inside the housing for accommodating electrical components such as microstrips and resistors.

[0049] In a preferred embodiment, as Figure 1 shown, the housing is a cubic structure, with the height direction being vertical, the direction perpendicular to the two side wall surfaces being horizontal, and the direction perpendicular to the other two side wall surfaces being longitudinal. The output end 1 is provided at the top of the housing, and the input ends 2 are respectively provided on the two horizontal side wall surfaces. That is, two input ends 2 are provided on one side wall surface, and the two input ends 2 are arranged at intervals in the vertical direction.

[0050] Further, the output microstrip 3 is arranged vertically, and the two transmission microstrips respectively extend from the first combining position along the two horizontal sides and are respectively connected to the two input microstrips at the second combining position. The fourth microstrip segment 8 and the fifth microstrip segment 9 in the input microstrip are arranged in a "J" shape and are electrically connected to the input end 2 through the sixth microstrip segment 10. Further preferably, a first resistor 11 and a second resistor 12 are provided between two adjacent input microstrips.

[0051] Further, the first isolation microstrip 6 is arranged vertically, one end thereof is connected to the first connection position, and the other end is electrically connected to the first resistor 11. The first resistor 11 is grounded by being connected to the bottom of the housing. Further, a second isolation microstrip is provided between the two first isolation microstrips 6. The second isolation microstrip is arranged horizontally, and its two ends are respectively connected to the two first isolation microstrips 6.

[0052] The utility model includes four input ends and one output end. Between the input ends and the output end, output microstrips, transmission microstrips and input microstrips that increase gradually are provided, so as to realize the electrical connection between multiple input ends and one output end, enable the electrical signals in the multiple input ends to be combined and output to the output end, and a first isolation component is provided between the two transmission microstrips, and a second isolation component is provided between two adjacent input microstrips. Through the resistors in each isolation component, the isolation degree in the multi-channel multiplexer is enhanced to avoid the mutual crosstalk and interference between the electrical signals in the microstrips. At the same time, the resistor in the first isolation component is grounded, and a second isolation microstrip connecting the two first isolation microstrips is correspondingly provided, improving the power capacity of the multi-channel multiplexer.

[0053] Those skilled in the art can easily understand that the above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A multi-way combiner, characterized in that, It includes four input terminals and one output terminal. An output microstrip, a transmission microstrip, and an input microstrip are arranged between the input terminals and the output terminal. One end of the output microstrip is electrically connected to the output terminal, and the other end is respectively electrically connected to the two transmission microstrips. The ends of the transmission microstrips away from the output microstrip are respectively electrically connected to the two input microstrips, and the input microstrips and the input terminals are electrically connected in one-to-one correspondence.

2. The multiplexer according to claim 1, wherein, A first isolation component is arranged between the two transmission microstrips. The first isolation component includes two isolation units, and the isolation units and the transmission microstrips are arranged in one-to-one correspondence. Each isolation unit includes at least one first isolation microstrip and a first resistor. One end of the first isolation microstrip is electrically connected to the transmission microstrip, and the other end is electrically connected to one end of the first resistor. The end of the first resistor away from the first isolation microstrip is grounded.

3. The multiplexer according to claim 2, wherein, The transmission microstrip includes a first microstrip segment arranged close to the output terminal and a second microstrip segment arranged close to the input microstrip. The connection position between the first microstrip segment and the second microstrip segment is the first connection position, and the first isolation microstrip is electrically connected to the first connection position.

4. The multiplexer according to claim 2 or 3, wherein, The isolation component further includes a second isolation microstrip, and both ends of the second isolation microstrip are respectively electrically connected to the two first isolation microstrips.

5. The multiplexer according to any one of claims 1 to 3, wherein, The input microstrip includes a fourth microstrip segment, a fifth microstrip segment, and a sixth microstrip segment that are electrically connected in sequence along the direction from the transmission microstrip to the input terminal. The connection position between the fourth microstrip segment and the fifth microstrip segment is the second connection position, and the connection position between the fifth microstrip segment and the sixth microstrip segment is the third connection position.

6. The multiplexer according to claim 5, wherein, A second isolation component is arranged between two adjacent input microstrips. The second isolation component includes a second resistor and a third resistor. Both ends of the second resistor are respectively connected to the two second connection positions, and both ends of the third resistor are respectively connected to the third connection positions.

7. The multiplexer according to claim 5, wherein, The fourth microstrip segment and the fifth microstrip segment are in a "ji" shape, and the corner of the fourth microstrip segment and the fifth microstrip segment is a 55° inverted right angle.

8. The multiplexer according to any one of claims 1 to 3, 6, and 7, wherein, The material of each microstrip is copper and / or The thickness of each microstrip is 0.035 mm.

9. The multiplexer according to any one of claims 1 to 3, 6, and 7, wherein, It further includes a housing. The output terminal is arranged at the top of the housing, and the input terminals are arranged on the side wall of the housing.

10. The multiplexer according to claim 9, wherein, The input terminals are respectively arranged on the two lateral side walls of the housing, and two adjacent input terminals are arranged at intervals in the vertical direction.

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