CN220456623U - Dielectric duplexer - Google Patents
Dielectric duplexer Download PDFInfo
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- CN220456623U CN220456623U CN202322239620.8U CN202322239620U CN220456623U CN 220456623 U CN220456623 U CN 220456623U CN 202322239620 U CN202322239620 U CN 202322239620U CN 220456623 U CN220456623 U CN 220456623U
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- 239000002184 metal Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 230000008878 coupling Effects 0.000 claims abstract description 23
- 238000010168 coupling process Methods 0.000 claims abstract description 23
- 238000005859 coupling reaction Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 40
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
Abstract
The utility model discloses a dielectric duplexer, which comprises: the device comprises a body, a resonator group arranged in the body and a coupling metal layer arranged on the outer wall of the body; the body comprises a window circuit surface and five grounding shielding surfaces, and the window circuit surface and the grounding shielding surfaces are provided with coupling metal layers; the window circuit surface is provided with resonant holes the same as the number of resonators of the resonator group, one end of each resonator is fixed in each resonant hole, and the other end of each resonator is a free end; the resonator group comprises a high-frequency group and a low-frequency group, a plurality of resonators are arranged in two rows, one row is the high-frequency group, and the other row is the low-frequency group; the high-frequency group and the low-frequency group are separated by the coupling metal layer, the resonator is divided into two rows, the mounting area of the duplexer is reduced, the time between the high-frequency group and the low-frequency group is separated by the coupling metal layer, the isolation performance is good, the matching is more convenient, the outer surface area is reduced, the manufacturing cost is saved, and the mounting efficiency is improved.
Description
Technical Field
The utility model relates to the field of filters, in particular to a dielectric duplexer.
Background
The duplexer belongs to one kind of filter, and is mainly used for different frequency duplex radio station and relay station, and has the functions of isolating the transmitted signal from the received signal and ensuring the normal operation of both the receiving signal and the transmitting signal. The device consists of band-pass elements with different frequencies, and avoids the transmission of a local transmitting signal to a receiver.
The prior art duplexer generally comprises a body and a plurality of resonators arranged in the body, wherein the resonators Kong Binglie are arranged in the body in parallel and are affected by frequency bands, and the positions of the resonators cannot be changed. Therefore, the length of the duplexer in the prior art is generally longer, the requirement on the plane area is higher, and the installation is limited when the plane area is insufficient; and the positions of the resonant holes cannot be changed at will, so that the requirements on isolation and matching are high.
Disclosure of Invention
The utility model overcomes the defects of long length and high requirement on installation area of a duplexer in the prior art, and provides a dielectric duplexer, which adopts the following technical scheme: a dielectric duplexer, comprising: the device comprises a body, a resonator group arranged in the body and a coupling metal layer arranged on the outer wall of the body;
the body comprises a window circuit surface and five grounding shielding surfaces, and the window circuit surface and the grounding shielding surfaces are both provided with the coupling metal layer;
the window circuit surface is provided with resonant holes the same as the resonators of the resonator group in number, one end of each resonator is fixed in each resonant hole, and the other end of each resonator is a free end;
the resonator group comprises a high-frequency group and a low-frequency group, a plurality of resonators are arranged in two rows, one row is the high-frequency group, and the other row is the low-frequency group; the high frequency group and the low frequency group are separated by a coupling metal layer.
In a preferred embodiment of the present utility model, the coupling metal layer includes a cover layer disposed on the ground shielding surface, a plurality of surrounding layers disposed on the window circuit surface, a ground layer disposed on the window circuit surface, and a plurality of transmission layers disposed on the window circuit surface and the ground shielding surface, wherein the center of any one of the surrounding layers is the resonance hole, and the high-frequency group and the low-frequency group are separated by the ground layer.
In a preferred embodiment of the present utility model, the ground layer is electrically connected to the cover layer.
In a preferred embodiment of the present utility model, the transmission layer is not in contact with the ground layer, the transmission layer is not in contact with the surrounding layer, and the transmission layer is not in contact with the cover layer.
In a preferred embodiment of the present utility model, the resonant hole is a through hole.
In a preferred embodiment of the present utility model, the transmission layer includes a first transmission layer, a second transmission layer and a third transmission layer, where the first transmission layer is disposed at one end of the resonator group, the second transmission layer and the third transmission layer are disposed in parallel at the other end of the resonator group, and the second transmission layer and the third transmission layer are separated by the ground layer.
In a preferred embodiment of the present utility model, a plurality of ports are further included, and the ports are electrically connected to the transmission layer.
In a preferred embodiment of the present utility model, the ground layer includes a first section disposed at one end of the low frequency group, a second section disposed between the high frequency group and the low frequency group, and a third section disposed at the other end of the low frequency group, and the third section is electrically connected to the cover layer.
In a preferred embodiment of the present utility model, the inner wall of the resonant hole is provided with a coupling metal layer.
The utility model solves the defects existing in the background technology, and has the following beneficial effects:
the utility model divides the resonators into two rows, reduces the installation area of the duplexer, separates the high-frequency group from the low-frequency group by the coupling metal layer, has good isolation performance, is more convenient to match, reduces the external surface area, saves the manufacturing cost and improves the installation efficiency.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other embodiments of the drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a dielectric duplexer according to an embodiment of the present utility model.
The reference numerals are as follows: 1-a common port; 2-low frequency ports; 3-high frequency port; 4-surrounding layer; a 5-ground layer; 6-resonance holes; 7-cover layer.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and detailed description thereof, which are simplified schematic drawings which illustrate only the basic structure of the utility model and therefore show only those features which are relevant to the utility model, it being noted that embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may include one or more of the feature, either explicitly or implicitly. In the description of the utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application can be understood by those of ordinary skill in the art in a specific context.
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1, includes: the device comprises a body, a resonator group arranged in the body and a coupling metal layer arranged on the outer wall of the body; the body comprises a window circuit surface and five grounding shielding surfaces, wherein the window circuit surface and the grounding shielding surfaces are both provided with the coupling metal layer.
The window circuit surface is provided with resonant holes 6 the same as the number of resonators of the resonant group, one end of each resonator is fixed in each resonant hole 6, and the other end is a free end. The resonance hole 6 is a through hole, and the inner wall of the resonance hole 6 is uniformly attached with a coupling metal layer, which can be a metal conductor such as copper, silver, gold, etc. The coupling metal layer can be formed by adopting laser engraving, screen printing and other processes.
The resonator group comprises a high-frequency group and a low-frequency group, and a plurality of resonators are arranged in two rows, one row is the high-frequency group, and the other row is the low-frequency group.
The shadow filling parts in fig. 1 are all coupling metal layers, which can be metal conductors such as copper, silver and the like, and are sintered and attached on the surface of the ceramic body, and other non-filling areas are the ceramic body. The coupling metal layer comprises a covering layer 7 arranged on the grounding shielding surface, a plurality of surrounding layers 4 arranged on the window circuit surface, a grounding layer 5 arranged on the window circuit surface and a plurality of transmission layers arranged on the window circuit surface and the grounding shielding surface, the center of any surrounding layer is a resonance hole, and the high-frequency group and the low-frequency group are separated through the grounding layer 5.
Referring to fig. 1, the surrounding layer 4 belongs to an adjustable surface, and can adjust and set the coupling quantity between the resonant cavities.
The ground layer 5 includes a first section disposed at one end of the low frequency band, a second section disposed between the high frequency band and the low frequency band, and a third section disposed at the other end of the low frequency band, which are electrically connected to the cover layer 7.
The transport layer is not in contact with the ground layer 5, the transport layer is not in contact with the surrounding layer 4, and the transport layer is not in contact with the cover layer 7.
The quantity of transmission layer is three, and the transmission layer includes first transmission layer, second transmission layer and third transmission layer, and first transmission layer sets up in the one end of resonator group, and second transmission layer and third transmission layer set up in the other end of resonator group side by side, separate through stratum 5 between second transmission layer and the third transmission layer. The high-frequency port 3 is electrically connected with the high-frequency port 3, and the high-frequency port 3 is electrically connected with the low-frequency port 2.
The utility model divides the resonators into two rows, reduces the installation area of the duplexer, separates the high-frequency group from the low-frequency group by the coupling metal layer, has good isolation performance, is more convenient to match, reduces the external surface area, saves the manufacturing cost and improves the installation efficiency.
The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (9)
1. A dielectric duplexer, comprising: the device comprises a body, a resonator group arranged in the body and a coupling metal layer arranged on the outer wall of the body;
the body comprises a window circuit surface and five grounding shielding surfaces, and the window circuit surface and the grounding shielding surfaces are both provided with the coupling metal layer;
the window circuit surface is provided with resonant holes the same as the resonators of the resonator group in number, one end of each resonator is fixed in each resonant hole, and the other end of each resonator is a free end;
the resonator group comprises a high-frequency group and a low-frequency group, a plurality of resonators are arranged in two rows, one row is the high-frequency group, and the other row is the low-frequency group; the high frequency group and the low frequency group are separated by a coupling metal layer.
2. A dielectric duplexer as claimed in claim 1, wherein: the coupling metal layer comprises a covering layer arranged on the grounding shielding surface, a plurality of surrounding layers arranged on the window circuit surface, a grounding layer arranged on the window circuit surface and a plurality of transmission layers arranged on the window circuit surface and the grounding shielding surface, the center of any surrounding layer is the resonance hole, and the high-frequency group and the low-frequency group are separated by the grounding layer.
3. A dielectric duplexer as claimed in claim 2, wherein: the ground layer is electrically connected with the cover layer.
4. A dielectric duplexer as claimed in claim 2, wherein: the transmission layer is not in contact with the ground layer, the transmission layer is not in contact with the surrounding layer, and the transmission layer is not in contact with the covering layer.
5. A dielectric duplexer as claimed in claim 2, wherein: the resonance hole is a through hole.
6. A dielectric duplexer as claimed in claim 2, wherein: the transmission layer comprises a first transmission layer, a second transmission layer and a third transmission layer, wherein the first transmission layer is arranged at one end of the resonator group, the second transmission layer and the third transmission layer are arranged at the other end of the resonator group in parallel, and the second transmission layer and the third transmission layer are separated by the grounding layer.
7. A dielectric duplexer as claimed in claim 2, wherein: and a plurality of ports electrically connected with the transmission layer.
8. A dielectric duplexer as claimed in claim 2, wherein: the ground layer comprises a first section, a second section and a third section, wherein the first section is arranged at one end of the low-frequency group, the second section is arranged between the high-frequency group and the low-frequency group, the third section is arranged at the other end of the low-frequency group, and the third section is electrically connected with the covering layer.
9. A dielectric duplexer as claimed in claim 1, wherein: the inner wall of the resonance hole is provided with a coupling metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322239620.8U CN220456623U (en) | 2023-08-21 | 2023-08-21 | Dielectric duplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322239620.8U CN220456623U (en) | 2023-08-21 | 2023-08-21 | Dielectric duplexer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220456623U true CN220456623U (en) | 2024-02-06 |
Family
ID=89727040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322239620.8U Active CN220456623U (en) | 2023-08-21 | 2023-08-21 | Dielectric duplexer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220456623U (en) |
-
2023
- 2023-08-21 CN CN202322239620.8U patent/CN220456623U/en active Active
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