CN216085258U - Low-cost compact three-frequency combiner - Google Patents
Low-cost compact three-frequency combiner Download PDFInfo
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- CN216085258U CN216085258U CN202122629890.0U CN202122629890U CN216085258U CN 216085258 U CN216085258 U CN 216085258U CN 202122629890 U CN202122629890 U CN 202122629890U CN 216085258 U CN216085258 U CN 216085258U
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Abstract
The utility model discloses a low-cost compact three-frequency combiner which comprises a substrate, wherein a copper-clad layer is arranged on the lower surface of the substrate, an etching layer is arranged on the upper surface of the substrate, the copper-clad layer and the etching layer are attached and fixed on the substrate, the substrate is provided with a combining port, a first frequency dividing port, a second frequency dividing port and a third frequency dividing port, the etching layer is provided with a first transmission line, a second transmission line, a third transmission line and a three-frequency combining port, the combining port is connected with the first transmission line, the second transmission line and the third transmission line through the three-frequency combining port, the first transmission line is further connected with the first frequency dividing port, the second transmission line is connected with the second frequency dividing port, and the third transmission line is connected with the third frequency dividing port. The low-cost compact three-frequency combiner provided by the utility model has the advantages of simple structure, small volume, low cost and excellent performance.
Description
Technical Field
The utility model relates to the technical field of combiners, in particular to a low-cost compact three-frequency combiner.
Background
With the development of communication technology, the requirement on the size of the antenna is smaller and smaller, and the integrated frequency band is more and more. A combiner is a key component of a modern communication system for transmitting and receiving signals, and the performance of the combiner is directly related to the whole communication system. In order to solve the problems of difficult site selection and high site construction cost, an operator can effectively realize multi-channel signals of different systems by sharing a group of broadband antennas by using a combiner.
The multi-frequency combiner antenna reduces output ports through the built-in combiner, and the reduction of the expenditure of the antenna can be realized. Most of products popular in the market are combiners with cavity structures, but the combiners with the cavity structures at present have the problems of large weight, difficulty in processing, large size, high cost, difficulty in assembling and the like, and cannot be used as the first choice of the antenna built-in combiner. Therefore, there is a need for a multi-frequency combiner that solves the above-mentioned technical problems.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above disadvantages of the prior art, the present invention provides a compact triple-frequency combiner with simple structure, small size, low cost and excellent performance.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a low-cost compact three frequency combiner, includes the base plate, the base plate lower surface is equipped with and covers the copper layer, the base plate upper surface is equipped with the etching layer, cover the copper layer and the etching layer laminating is fixed in the base plate, the base plate is equipped with closes way port, first frequency division port, second frequency division port and third frequency division port, the etching layer is equipped with first transmission line, second transmission line, third transmission line and three frequency and closes the way, close the way port and close with first transmission line, second transmission line and third transmission line connection through three frequencies, first transmission line still is connected with first frequency division port, the second transmission line is connected with the second frequency division port, the third transmission line is connected with the third frequency division port.
As a further improvement of the utility model: the etching layer is further provided with a first open-circuit branch, a second open-circuit branch and a third open-circuit branch, the first open-circuit branch is connected with the first transmission line, the second open-circuit branch is connected with the second transmission line, and the third open-circuit branch is connected with the third transmission line.
As a further improvement of the utility model: the etching layer is further provided with a first capacitor element and a second capacitor element, and the first capacitor element and the second capacitor element are connected with a second transmission line.
As a further improvement of the utility model: the frequency band of the first transmission line is 698-.
As a further improvement of the utility model: the first transmission line is provided with a double-frequency shunt, and the second transmission line is connected into the first transmission line through the double-frequency shunt.
As a further improvement of the utility model: the substrate, the copper-clad layer and the etching layer are provided with three mounting holes.
As a further improvement of the utility model: the material of the substrate is FR 4.
As a further improvement of the utility model: the low-cost compact three-frequency combiner is also provided with a solder mask.
As a further improvement of the utility model: the substrate has a dielectric constant of 4.5.
As a further improvement of the utility model: and the plurality of third open-circuit branches of the third transmission line are provided with fixing holes, and the etching layer is fixedly connected with the substrate through the fixing holes.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a three frequency combiners have simple structure, small, with low costs, excellent performance's characteristics, have realized the three frequency of 698-960/1710-2700/3300-3700MHz and have covered.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The utility model will now be further described with reference to the accompanying description and examples:
detailed description of the utility model:
the utility model provides a low-cost compact three frequency combiner, includes base plate 1, base plate 1 lower surface is equipped with and covers the copper layer, base plate 1 upper surface is equipped with the etching layer, cover the copper layer and the etching layer laminating is fixed in base plate 1, base plate 1 is equipped with closes port 5, first frequency division port 2, second frequency division port 3 and third frequency division port 4, the etching layer is equipped with first transmission line 23, second transmission line 31, third transmission line 41 and three frequency and closes 21, close port 5 through three frequency close 21 with first transmission line 23, second transmission line 31 and third transmission line connection 41, first transmission line 23 still is connected with first frequency division port 2, second transmission line 31 is connected with second frequency division port 3, third transmission line 41 is connected with third frequency division port 4.
The etching layer is further provided with a first open-circuit branch 24, a second open-circuit branch 34 and a third open-circuit branch 42, the first open-circuit branch 24 is connected with the first transmission line 23, the second open-circuit branch 34 is connected with the second transmission line 31, the third open-circuit branch 42 is connected with the third transmission line 41, the etching layer is further provided with a first capacitor element 32 and a second capacitor element 33, and the first capacitor element 32 and the second capacitor element 33 are connected with the second transmission line 31.
The frequency band of the first transmission line 23 is 698-.
The first transmission line 23 is provided with a dual-frequency shunt 22, and the second transmission line 31 is connected to the first transmission line 23 through the dual-frequency shunt 22.
The plurality of third opening branches 42 of the third transmission line 41 are provided with fixing holes 43, and the etching layer is fixedly connected with the substrate 1 through the fixing holes 43.
The substrate 1, the copper-clad layer and the etching layer are provided with three mounting holes 11, the material of the substrate 1 is FR4, and the dielectric constant of the substrate 1 is 4.5.
The low-cost compact three-frequency combiner is also provided with a solder mask.
In this embodiment, the combiner is divided into three frequency bands, a low frequency system frequency band, a medium frequency system frequency band, and a high frequency system frequency band, and a frequency division path is fabricated accordingly. The working frequency band of the low-frequency system frequency band channel is 698 plus 960MHz, the working frequency band of the intermediate-frequency system frequency band channel is 1710 plus 2700MHz, and the working frequency band of the high-frequency system frequency band channel is 3310 plus 3700 MHz. The operating frequency band corresponding to the first frequency division port 2 is 698-.
The open-circuit branches of each system frequency band channel are composed of lines with different lengths and widths, the purpose is to widen the bandwidth of the combiner, realize the miniaturization of the combiner, and transfer the three-frequency combiner to an application component of the combiner through a mounting hole 11.
In summary, after reading the present disclosure, those skilled in the art can make various other corresponding changes without creative mental labor according to the technical solutions and concepts of the present disclosure, and all of them are within the protection scope of the present disclosure.
Claims (7)
1. The utility model provides a low-cost compact three frequency combiner, includes the base plate, its characterized in that, the base plate lower surface is equipped with and covers the copper layer, the base plate upper surface is equipped with the etching layer, cover the copper layer and the etching layer laminating is fixed in the base plate, the base plate is equipped with closes port, first frequency division port, second frequency division port and third frequency division port, the etching layer is equipped with first transmission line, second transmission line, third transmission line and three frequency and closes the way, close the port and close with first transmission line, second transmission line and third transmission line connection through three frequencies, first transmission line still is connected with first frequency division port, the second transmission line is connected with the second frequency division port, the third transmission line is connected with the third frequency division port.
2. A low-cost compact triple-band combiner according to claim 1, wherein said etching layer is further provided with a first open-circuit branch, a second open-circuit branch and a third open-circuit branch, said first open-circuit branch is connected to said first transmission line, said second open-circuit branch is connected to said second transmission line, and said third open-circuit branch is connected to said third transmission line.
3. A low-cost compact triple-band combiner according to claim 2, wherein said etching layer is further provided with a first capacitive element and a second capacitive element, said first capacitive element and said second capacitive element being connected to said second transmission line.
4. The low-cost compact triple-band combiner as claimed in claim 1, wherein the frequency band of the first transmission line is 698-.
5. The low-cost compact three-frequency combiner of claim 1, wherein the substrate, the copper-clad layer and the etching layer are provided with a plurality of mounting holes.
6. A low-cost compact triple-band combiner according to claim 1, wherein said first transmission line is provided with a dual-band shunt, and said second transmission line is connected to said first transmission line via said dual-band shunt.
7. The low-cost compact three-frequency combiner of claim 1, wherein a plurality of third opening branches of the third transmission line are provided with fixing holes, and the etching layer is fixedly connected to the substrate through the fixing holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122629890.0U CN216085258U (en) | 2021-10-29 | 2021-10-29 | Low-cost compact three-frequency combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122629890.0U CN216085258U (en) | 2021-10-29 | 2021-10-29 | Low-cost compact three-frequency combiner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216085258U true CN216085258U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122629890.0U Active CN216085258U (en) | 2021-10-29 | 2021-10-29 | Low-cost compact three-frequency combiner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216085258U (en) |
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2021
- 2021-10-29 CN CN202122629890.0U patent/CN216085258U/en active Active
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