CN105789811A - Self-compensation directional coupler - Google Patents
Self-compensation directional coupler Download PDFInfo
- Publication number
- CN105789811A CN105789811A CN201610246357.7A CN201610246357A CN105789811A CN 105789811 A CN105789811 A CN 105789811A CN 201610246357 A CN201610246357 A CN 201610246357A CN 105789811 A CN105789811 A CN 105789811A
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- CN
- China
- Prior art keywords
- line
- auxiliary line
- main line
- directional coupler
- coupler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
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Abstract
The invention discloses a self-compensation directional coupler which comprises a multilayer substrate, a main line and an auxiliary line, wherein the main line and the auxiliary line are situated in different layers of the multilayer substrate, and the radiofrequency signals in the main line are coupled to the Z-shaped auxiliary line. The novel Z-shaped coupler structure is disclosed in the invention, and the auxiliary line is designed into Z shape. The structure automatically compensates misalignment of the main line and the auxiliary line between layers of the multilayer substrate caused by manufacturing process deviation when the coupler is manufactured, and the coupling factor, directivity and other performance indexes of the coupler can be retained stable in a desirable scope during mass production. The self-compensation directional coupler is simple in structure, is easy to realize and effectively fuse with a radio frequency circuit.
Description
Technical field
The present invention relates to the bonder of a kind of multilager base plate, specifically for the bonder of the multilager base plate of radio-frequency power amplifier.
Background technology
Traditionally, the realization of these bonders maintains completely overlapped alignment to provide RF-coupled by the radio frequency line on the pcb board adjacent by two and coupling line.These are that its directivity and the degree of coupling are changed significantly along with the change of production process based on one restriction of bonder of multilager base plate, for instance, not lining up between layers of radio frequency line and coupling line, and the etching tolerance of transmission line.Which results in the radio frequency power output of the system employing these bonders and control bad.
There is now several technology to tackle the performance change of this bonder and to improve the directivity of this multilager base plate bonder.Such as, the length supplementing line of rabbet joint extension bonder compensates even mould and Qi Mo phase velocity and improves the degree of coupling etc..Discussing, ReinmutK.Hoffmanetal. at " microstrip line-groove bonder-design part I: the S-parameter of non-compensation and compensatory bonder ", IEEE microwave theory and technology journal, MIT-30 rolls up, No. 8, August nineteen eighty-two.The method of various raising directional coupler performances includes the additional assemblies increasing bonder, as the end at radio frequency line and coupling line increases inducer or shnt capacitor.Another method relates to a floating metallic plate to be placed in Coupled Miccrostrip Lines between splicing thread coupling etc.." Closure equation of conventional microstrip bonder is applied to the design bonder of kickboard overlay structure and wave filter " is also had to mention, " Kuo-ShengChinetal., IEEE microwave theory and technology journal, 56 volumes, No. 5, in May, 2008.The technology of another directivity improving microstrip directional coupler includes using feedback element at the conllinear end of parallel lines bonder, uses the coupled end that feedforward compensation circuit is connected to directional coupler to be also suggested with the bonder increasing directivity/isolation.Directed microstrip line bonder based on multilager base plate is widely implemented in various radio-frequency power amplifier modules, and first its reason gives the credit to its easily fabricated and low cost.This directional coupler is typically designed to and places radio frequency line and coupling line respectively in contiguous two-layer pcb board, and guarantees that both are overlapped to provide RF-coupled.But, this bonder based on multilager base plate has a defect, and namely significant change occurs along with the change of manufacturing process for its directivity and the degree of coupling, for instance, the whether completely overlapped alignment of main line on adjacent layer and auxiliary line, also has the etching tolerance etc. of every transmission lines.
Summary of the invention
In order to solve prior art exist deficiency, it is an object of the invention to provide a kind of simple in construction and can effectively and radio circuit fusion self compensation directional coupler.
For achieving the above object, the technical solution adopted in the present invention is:
Self compensation directional coupler, including multilager base plate, main line and auxiliary line, described main line and auxiliary line are arranged in the layer that multilager base plate is different, and the radiofrequency signal in described main line is coupled in auxiliary line, and described auxiliary line is zigzag configuration.
Further, described multilager base plate is 4 Rotating fields, and main line is arranged in ground floor, and auxiliary line is arranged in the second layer.
Further, described multilager base plate is 6 Rotating fields, and main line is arranged in the second layer, and auxiliary line is arranged in third layer.
Beneficial effects of the present invention:The present invention proposes a kind of new " Z-shaped " coupler structure, auxiliary line is designed as " Z-shaped ", this structure can compensate not lining up of the layer of multilager base plate because being caused by manufacturing process deviation when bonder produces and the main line of interlayer and auxiliary line automatically, and when can effectively stably produce, the performance indications such as the degree of coupling of bonder and directivity are within desired scope.Present configuration is simple, it is simple to realize, and can effectively merge with radio circuit。
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is the circuit structure diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, self compensation directional coupler, including multilager base plate 1, main line 2 and auxiliary line 3, described main line 2 and auxiliary line 3 are arranged in the layer that multilager base plate 1 is different, radiofrequency signal in described main line 2 is coupled in auxiliary line 3, and described auxiliary line 3 is zigzag configuration.
When described multilager base plate 1 is 4 Rotating fields, main line 2 is arranged in ground floor, and auxiliary line 3 is arranged in the second layer.When described multilager base plate 1 is 6 Rotating fields, main line 2 is arranged in the second layer, and auxiliary line 3 is arranged in third layer.
The above is the preferred embodiment of the present invention; certainly the interest field of the present invention can not be limited with this; should be understood that; for those skilled in the art; technical scheme is modified or equivalent replacement, without departure from the protection domain of technical solution of the present invention.
Claims (3)
1. a self compensation directional coupler, it is characterized in that: include multilager base plate, main line and auxiliary line, described main line and auxiliary line are arranged in the layer that multilager base plate is different, and the radiofrequency signal in described main line is coupled in auxiliary line, and described auxiliary line is zigzag configuration.
2. self compensation directional coupler according to claim 1, it is characterised in that: described multilager base plate is 4 Rotating fields, and main line is arranged in ground floor, and auxiliary line is arranged in the second layer.
3. self compensation directional coupler according to claim 1, it is characterised in that: described multilager base plate is 6 Rotating fields, and main line is arranged in the second layer, and auxiliary line is arranged in third layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610246357.7A CN105789811A (en) | 2016-04-20 | 2016-04-20 | Self-compensation directional coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610246357.7A CN105789811A (en) | 2016-04-20 | 2016-04-20 | Self-compensation directional coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105789811A true CN105789811A (en) | 2016-07-20 |
Family
ID=56396893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610246357.7A Pending CN105789811A (en) | 2016-04-20 | 2016-04-20 | Self-compensation directional coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105789811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449553A (en) * | 2019-01-10 | 2019-03-08 | 广西芯百特微电子有限公司 | A kind of novel RF coupler and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383590A (en) * | 2000-06-09 | 2002-12-04 | 三菱电机株式会社 | Directional coupler |
| EP2178155A1 (en) * | 2008-10-16 | 2010-04-21 | Rohde & Schwarz GmbH & Co. KG | Directional coupler with compensation of direction accuracy with target error adjustment |
| US20120019335A1 (en) * | 2010-07-20 | 2012-01-26 | Hoang Dinhphuoc V | Self compensated directional coupler |
| CN205564945U (en) * | 2016-04-20 | 2016-09-07 | 广东工业大学 | Self compensating directional coupler |
-
2016
- 2016-04-20 CN CN201610246357.7A patent/CN105789811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383590A (en) * | 2000-06-09 | 2002-12-04 | 三菱电机株式会社 | Directional coupler |
| EP2178155A1 (en) * | 2008-10-16 | 2010-04-21 | Rohde & Schwarz GmbH & Co. KG | Directional coupler with compensation of direction accuracy with target error adjustment |
| US20120019335A1 (en) * | 2010-07-20 | 2012-01-26 | Hoang Dinhphuoc V | Self compensated directional coupler |
| TW201222962A (en) * | 2010-07-20 | 2012-06-01 | Skyworks Solutions Inc | Self compensated directional coupler |
| CN205564945U (en) * | 2016-04-20 | 2016-09-07 | 广东工业大学 | Self compensating directional coupler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449553A (en) * | 2019-01-10 | 2019-03-08 | 广西芯百特微电子有限公司 | A kind of novel RF coupler and device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |