CN101471475B - Strong coupler with harass shielding current structure - Google Patents
Strong coupler with harass shielding current structure Download PDFInfo
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- CN101471475B CN101471475B CN 200710173341 CN200710173341A CN101471475B CN 101471475 B CN101471475 B CN 101471475B CN 200710173341 CN200710173341 CN 200710173341 CN 200710173341 A CN200710173341 A CN 200710173341A CN 101471475 B CN101471475 B CN 101471475B
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- strip line
- line coupler
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- upsetting
- coupling device
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- 230000008878 coupling Effects 0.000 claims description 21
- 238000010168 coupling process Methods 0.000 claims description 21
- 238000005859 coupling reaction Methods 0.000 claims description 21
- 230000007547 defect Effects 0.000 claims description 12
- 230000002950 deficient Effects 0.000 claims description 8
- 241001347978 Major minor Species 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention relates to a strong coupler with a current disturbing and shielding structure. The strong coupler comprises a cavity body, a cover plate, a large-power matched load, a strip-line coupler plate, and a connector, wherein the cover plate is arranged on the upper part of the cavity body; the strip-line coupler plate is arranged in the cavity body; the connector is arranged on the side surface of the cavity body; the strip-line coupler plate comprises an upper segment and a lower segment; the large-power matched load is arranged on the lower segment of the strip-line coupler plate; a defected ground structure is arranged on the upper surface of the upper segment of the strip-line coupler plate; and a slot is formed on the bottom of the inner wall of the cavity body. Compared with the prior art, the strong coupler has the advantages of more compact structure, improved directivity, etc.
Description
Technical field
The present invention relates to strong coupling device, particularly a kind of strong coupling device with upsetting the bucking current 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.At 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 bucking current of upsetting distribution can change the characteristic of transmission line, such as effective inductance and effective capacitance.
In conventional band line coupler design, for the close coupling degree, the high directivity coupler design needs large space, improved like this cost, and to need in limited available system equipment space be unallowed, if adopt the efficient coupling length reduce the 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.Take limit, 10dB strong coupling device major-minor line limit coupling space as example, if by-pass adopts eight/wavelength (medium wavelength) even shorter, then the major-minor linear distance need to be at 0.1mm even less, this is difficult to guarantee in reality processing intermediate gap tolerance, so that homogeneity of product is poor, and because the gap is too little, actual debugging difficulty is also very large, so the implementation structure size is larger in existing strong coupling device is realized, compact not.
Summary of the invention
Purpose of the present invention is exactly to provide the more compact band of a kind of coupled structure to upset the strong coupling device of bucking current structure for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of strong coupling device with upsetting the bucking current 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 track type.
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 present invention has the coupled structure of making can be more compact, and improve the advantages such as directivity of coupler.
Description of drawings
Fig. 1 is the structural representation of a kind of strong coupling device with upsetting the bucking current structure of the present invention.
Embodiment
As shown in Figure 1, a kind of strong coupling device with upsetting the bucking current 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 at strip line can be square, rectangle, and circle, triangle or periodically square, periodically rectangle is periodically circular, the shapes such as periodicity triangle
Above-mentionedly be shaped as the regular shape that is generally easy to process at the cavity inner wall bottom slot, such as the track type shape.
In coupler, use defect ground structure so that coupled structure is more compact, suitably zoom out the spacing of (such 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 to 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.Like this so that realize that in the confined space close coupling comes true.In addition 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, and the bucking current of upsetting distribution can change the characteristic of transmission line, such 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. one kind with the strong coupling device of upsetting the bucking current 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.
2. a kind of strong coupling device with upsetting the bucking current structure according to claim 1 is characterized in that, the shape of described defect ground structure comprises that periodicity is square, periodically circular, the periodicity triangle.
3. a kind of strong coupling device with upsetting the bucking current structure according to claim 1 is characterized in that the shape of described defective geosyncline structure comprises track type.
4. a kind of strong coupling device with upsetting the bucking current 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 strong coupling device with upsetting the bucking current 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 |
|---|---|---|---|
| CN 200710173341 CN101471475B (en) | 2007-12-27 | 2007-12-27 | Strong coupler with harass shielding current structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710173341 CN101471475B (en) | 2007-12-27 | 2007-12-27 | Strong coupler with harass shielding current structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101471475A CN101471475A (en) | 2009-07-01 |
| CN101471475B true CN101471475B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200710173341 Active CN101471475B (en) | 2007-12-27 | 2007-12-27 | Strong coupler with harass shielding current structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201134494Y (en) * | 2007-12-27 | 2008-10-15 | 奥雷通光通讯设备（上海）有限公司 | Strong coupling device with defect structure |
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- 2007-12-27 CN CN 200710173341 patent/CN101471475B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201134494Y (en) * | 2007-12-27 | 2008-10-15 | 奥雷通光通讯设备（上海）有限公司 | Strong coupling device with defect structure |
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| CN101471475A (en) | 2009-07-01 |
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Owner name: KAELUS COMMUNICATION EQUIPMENT (SHANGHAI) CO., LTD Free format text: FORMER NAME: ALLRIZON-TONGGUANG COMMUNICATIONS EQUIPMENT (SHANGHAI) CO., LTD. |
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Address after: 200335 Shanghai city Changning District Guang Shun building B No. 33 south room two floor of the South Tower Patentee after: Kai Kai communications equipment (Shanghai) Co., Ltd. Address before: Changning District Tianshan Road 200335 Shanghai City 789 Building No. 3 West Patentee before: Allrizon-Tongguang Communications Equipment (Shanghai) Co., Ltd. |