CN201134494Y - Strong coupling device with defect structure - Google Patents
Strong coupling device with defect structure Download PDFInfo
- Publication number
- CN201134494Y CN201134494Y CNU2007200774243U CN200720077424U CN201134494Y CN 201134494 Y CN201134494 Y CN 201134494Y CN U2007200774243 U CNU2007200774243 U CN U2007200774243U CN 200720077424 U CN200720077424 U CN 200720077424U CN 201134494 Y CN201134494 Y CN 201134494Y
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- strip line
- plate
- cavity
- ground structure
- coupling device
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Abstract
The utility model relates to a strong coupler with a defected ground structure, which comprises a cavity, a cover board, a larger power matched load, a strip line coupler plate and a connector, wherein the cover board is arranged on the upper portion of the cavity, the strip line coupler plate is arranged inside the cavity, the connector is arranged on the lateral side of the cavity, the strip line coupler plate comprises an upper plate and a lower plate, the large power matched load is arranged on the lower plate of the strip line coupler plate, a defected ground structure is arranged on the upper plate of the strip lien coupler plate, and a groove is arranged on the bottom surface of the cavity internal wall. Compared with the prior art, the strong coupler with a defected ground structure has the advantages of compacting coupling structure and increasing directivity of couplers.
Description
Technical field
The utility model relates to the close coupling device, particularly a kind of close coupling device that has defect ground structure.
Background technology
Along with developing rapidly of wireless communication technology, require the product miniaturization, low cost, low-loss.And the traditional microwave circuit design, the element that often is confined to circuit board surface distributes and design, has ignored the development and utilization of the back side-metal ground plate of circuit board.On research photon band gap (PBG) architecture basics, defect ground structure (DGS) has been proposed thus, DGS forms by etching defect figure on ground plate, the bucking current that this structure can upset on the ground plate distributes, and the characteristic of the bucking current of upsetting distribution can change transmission line, as effective inductance and effective capacitance.
In conventional band line coupler design, at the close coupling degree, the high directivity coupler design needs big space, improved cost like this, and to need in the limited available system device space be unallowed, if adopt the effective coupling length reduce coupler by-pass coupler major-minor distance between centers of tracks that furthers, precision is difficult to guarantee that homogeneity of product is poor in actual PCB processing.With limit, 10dB close coupling device major-minor line limit coupling spacing is example, if by-pass adopts eight/wavelength (medium wavelength) even shorter, then the major-minor linear distance need be at 0.1mm even littler, this is difficult to guarantee in reality processing intermediate gap tolerance, make homogeneity of product poor, and because the gap is too little, actual debugging difficulty is also very big, so it is the implementation structure size is bigger in existing close coupling device is realized, compact inadequately.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of coupled structure the more compact close coupling device that has defect ground structure for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of close coupling device that has defect ground structure, comprise cavity, cover plate, high-power matched load, the strip line coupler plate, connector, described cover plate is located at cavity top, described strip line coupler plate is located in the cavity, described connector is located at the cavity side, it is characterized in that, described strip line coupler plate comprises two up and down, described high-power matched load is located at below the strip line coupler plate one, a upper surface is provided with defect ground structure above the described strip line coupler plate, and described cavity inner wall bottom surface is provided with defective geosyncline structure.
That the shape of described defect ground structure comprises is square, rectangle, circle, triangle, periodically square, periodically rectangle, periodically circular, triangle periodically.
The shape of described defective geosyncline structure comprises runway shape.
Described defective geosyncline structure is thick 3 times of strip line deeply.
Height to cover plate is 3 times of strip line thickness above the described strip line coupler plate.
Compared with prior art, the utlity model has and make the coupled structure can be more compact, and improve the advantages such as directivity of coupler.
Description of drawings
Fig. 1 is a kind of structural representation that has the close coupling device of defect ground structure of the utility model.
Embodiment
As shown in Figure 1, a kind of close coupling device that has defect ground structure comprises cavity 1, cover plate 2, the high-power matched load 3 of terminal 50 Ω, strip line coupler plate 4 (is divided into two up and down, be convenient to actual debugging), connector 5 is etched into a given shape in strip line coupler major-minor line back-side ground plane and forms defect ground structure.Open the groove of a given shape in cavity respective inner walls bottom surface, groove depth is generally more than 3 times of strip line thickness, and strip line coupler plate top is left to the space of few 3 times of strip line thickness.
The above-mentioned given shape that is etched on strip line can be square, rectangle, and circle, triangle or periodically square, periodically rectangle is periodically circular, shapes such as periodicity triangle
Above-mentionedly be shaped as the regular shape that is generally easy to process, as runway shape shape at the cavity inner wall bottom slot.
The utilization defect ground structure makes coupled structure more compact in coupler, suitably zooms out the spacing of (as the 10dB coupling) major-minor line in close coupling.The major-minor distance between centers of tracks can zoom out in limited same space, when not adopting defect ground structure with eight/wavelength side limit coupling time apart from need be at 0.1mm even 0.05mm, this precision when actual making sheet is difficult to guarantee, and the major-minor distance between centers of tracks can widen into more than the 0.3mm when having adopted this new design structure in defective ground.Make like this and realize that in the confined space close coupling comes true.Because defect ground structure (DGS) is to form by etching defect figure on ground plate, the bucking current that this structure can upset on the ground plate distributes in addition, and the characteristic of the bucking current of upsetting distribution can change transmission line, as effective inductance and effective capacitance.Can improve the directivity of coupler by this effective inductance and effective capacitance, realize high directivity, the defect ground structure that especially utilizes the periodic regular shape to form is more effective to improving directivity.
Claims (5)
1. close coupling device that has defect ground structure, comprise cavity, cover plate, high-power matched load, strip line coupler plate, connector, described cover plate is located at cavity top, described strip line coupler plate is located in the cavity, described connector is located at the cavity side, it is characterized in that, described strip line coupler plate comprises two up and down, described high-power matched load is located at below the strip line coupler plate one, a upper surface is provided with defect ground structure above the described strip line coupler plate, and described cavity inner wall bottom surface is provided with defective geosyncline structure.
2. a kind of close coupling device that has defect ground structure according to claim 1, it is characterized in that that the shape of described defect ground structure comprises is square, rectangle, circle, triangle, periodically square, periodically rectangle, periodically circular, triangle periodically.
3. a kind of close coupling device that has defect ground structure according to claim 1 is characterized in that the shape of described defective geosyncline structure comprises runway shape.
4. a kind of close coupling device that has defect ground structure according to claim 1 is characterized in that, described defective geosyncline structure is thick 3 times of strip line deeply.
5. a kind of close coupling device that has defect ground structure according to claim 1 is characterized in that, height to cover plate is 3 times of strip line thickness above the described strip line coupler plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200774243U CN201134494Y (en) | 2007-12-27 | 2007-12-27 | Strong coupling device with defect structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200774243U CN201134494Y (en) | 2007-12-27 | 2007-12-27 | Strong coupling device with defect structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134494Y true CN201134494Y (en) | 2008-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200774243U Expired - Lifetime CN201134494Y (en) | 2007-12-27 | 2007-12-27 | Strong coupling device with defect structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134494Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471475B (en) * | 2007-12-27 | 2013-04-03 | 奥雷通光通讯设备（上海）有限公司 | Strong coupler with harass shielding current structure |
| CN107482293A (en) * | 2017-07-27 | 2017-12-15 | 中国船舶重工集团公司第七二四研究所 | A kind of high-power compact lamination etc. is than series feed work(allocation/synthesizer |
| CN108933320A (en) * | 2017-05-26 | 2018-12-04 | 中兴通讯股份有限公司 | A kind of coupler circuit |
| CN110797620A (en) * | 2019-10-22 | 2020-02-14 | 中国电子科技集团公司第十三研究所 | 3dB bridge and preparation method thereof |
| CN110880634A (en) * | 2019-11-29 | 2020-03-13 | 苏州灿勤通讯技术有限公司 | Power divider for microwave communication |
| CN115441140A (en) * | 2022-11-03 | 2022-12-06 | 南京天朗防务科技有限公司 | Filter coupler |
-
2007
- 2007-12-27 CN CNU2007200774243U patent/CN201134494Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471475B (en) * | 2007-12-27 | 2013-04-03 | 奥雷通光通讯设备（上海）有限公司 | Strong coupler with harass shielding current structure |
| CN108933320A (en) * | 2017-05-26 | 2018-12-04 | 中兴通讯股份有限公司 | A kind of coupler circuit |
| CN107482293A (en) * | 2017-07-27 | 2017-12-15 | 中国船舶重工集团公司第七二四研究所 | A kind of high-power compact lamination etc. is than series feed work(allocation/synthesizer |
| CN110797620A (en) * | 2019-10-22 | 2020-02-14 | 中国电子科技集团公司第十三研究所 | 3dB bridge and preparation method thereof |
| CN110797620B (en) * | 2019-10-22 | 2022-08-02 | 中国电子科技集团公司第十三研究所 | 3dB bridge and preparation method thereof |
| CN110880634A (en) * | 2019-11-29 | 2020-03-13 | 苏州灿勤通讯技术有限公司 | Power divider for microwave communication |
| CN115441140A (en) * | 2022-11-03 | 2022-12-06 | 南京天朗防务科技有限公司 | Filter coupler |
| CN115441140B (en) * | 2022-11-03 | 2023-05-12 | 南京天朗防务科技有限公司 | Filtering coupler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081015 Effective date of abandoning: 20071227 |
|
| RGAV | Abandon patent right to avoid regrant |