CN105322267A - Strong coupler with air cavity - Google Patents
Strong coupler with air cavity Download PDFInfo
- Publication number
- CN105322267A CN105322267A CN201410272705.9A CN201410272705A CN105322267A CN 105322267 A CN105322267 A CN 105322267A CN 201410272705 A CN201410272705 A CN 201410272705A CN 105322267 A CN105322267 A CN 105322267A
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- CN
- China
- Prior art keywords
- transmission line
- air chamber
- pcb
- air cavity
- pcb board
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- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The present invention relates to a strong coupler with an air cavity. The strong coupler comprises an air cavity body and a PCB. The air cavity body comprises a front air cavity (1) and a back air cavity (2) installed on the PCB. The front side of the PCB is provided with a first transmission line (3), a third transmission line (5), and a PCB through hole. The back side of the PCB is provided with a second transmission line (4). A coupling area is formed by the coupling section of the first transmission line (3), the PCB through hole and the second transmission line (4). Compared with the prior art, the strong coupler has the advantages of excellent technology, easy processing, and adjustable degree of coupling.
Description
Technical field
The present invention relates to a kind of coupler, especially relate to a kind of strong coupling device with air chamber.
Background technology
In modern microwave millimeter-wave systems, coupler is one of vitals, and distribute for channel signal, the quality of its performance directly affects the quality of whole communication system.Therefore be widely used in various microwave and millimeter wave system.
Traditional 6dB microstrip coupler realizes coupled modes and adopts micro-band strip lines configuration and microstrip line gap coupled modes.
Such as 6dB microstrip coupler adopts micro-band strip lines configuration can realize strong 6dB coupled structure, but require the necessary filled media in whole Signal transmissions space, first can cause cost to waste, and goes to mate other device, will be difficult to operation if the second installation needs to do integral united test in systems in which.As adopted microstrip line gap coupled modes to go to realize 6dB, the gap between two coupling gaps only has 0.01mm, cannot realize in reality in processing at all.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of strong coupling device with air chamber is provided.
Object of the present invention can be achieved through the following technical solutions:
A kind of strong coupling device with air chamber, comprise air cavity and pcb board, described air cavity comprises and is arranged on front air chamber on pcb board and reverse side air chamber, it is characterized in that, described pcb board front is provided with the first transmission line, the 3rd transmission line and PCB plate through hole, described pcb board reverse side is provided with the second transmission line, described the first transmission line coupling section, PCB plate through hole and the second transmission line composition coupled zone.
The first described transmission line is connected with first input end mouth and the first output port respectively.
The second described transmission line two ends are each passed through 2 PCB plate through hole and are connected with the 3rd transmission line and load port, and the 3rd described transmission line is connected with the second output port.
Described front air chamber, the first transmission line and the 3rd transmission line, pcb board, the second transmission line, and reverse side air chamber sets gradually from top to bottom, forms five-layer structure.
Compared with prior art, the present invention has the following advantages:
One, 6dB coupling can easily be realized by the two-sided coupling technique of micro-band of the present invention, and processing of easily making a plate.
When two, coupler being assemblied in complete machine link, because coupler signal transmission is in front, the debugging of complete machine return loss easily can be realized by pruning transmission line 1.And by pruning the width of the transmission line 1 in the front of coupling regime, the fine setting of the degree of coupling can be realized.
Accompanying drawing explanation
Fig. 1 of the present inventionly faces structural representation;
Fig. 2 is left TV structure schematic diagram of the present invention;
Wherein, 1 be front air chamber, 2 be reverse side air chamber, 3 be the first transmission line, 4 to be the second transmission line, 5 be the 3rd transmission line, 6 be load port for first input end mouth, 7 be the first output port, 8 is the second output port, 9, A is coupling regime, and B is pcb board.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1:
As depicted in figs. 1 and 2, be a 6dB microstrip coupler structure in figure, whole coupler structure is divided into 5 Rotating fields, front air chamber 1, first transmission line 3, second transmission line 4, medium pcb board, the 3rd transmission line 5, reverse side air chamber 2.Microwave radio signal inputs from first input end mouth 6 and is transferred to the first output port 7 by the first transmission line 3 and exports.Signal coupling is produced by the second transmission line 4 and the first transmission line 1 at coupling regime.The signal be coupled exports from the second output port 8 through the 3rd transmission line 5 to front through the through hole of medium pcb board again, and load port 9 connects matched load, thus realizes close coupling process.
With a 850MHz coupled example.Frequency microwave signal, from the input of input sub-miniature A connector, outputs to output sub-miniature A connector by main transmission line, and reverse side coupled microstrip line realizes 6dB and is coupled through coupled transmission line and outputs to coupling sub-miniature A connector coupling output.
Claims (4)
1. the strong coupling device with air chamber, comprise air cavity and pcb board, described air cavity comprises and is arranged on front air chamber (1) on pcb board and reverse side air chamber (2), it is characterized in that, described pcb board front is provided with the first transmission line (3), the 3rd transmission line (5) and PCB plate through hole, described pcb board reverse side is provided with the second transmission line (4), the coupled section of described the first transmission line (3), PCB plate through hole and the second transmission line (4) composition coupled zone.
2. a kind of strong coupling device with air chamber according to claim 1, is characterized in that, described the first transmission line (3) is connected with first input end mouth (6) and the first output port (7) respectively.
3. a kind of strong coupling device with air chamber according to claim 1, it is characterized in that, described the second transmission line (4) two ends are each passed through 2 PCB plate through hole and are connected with the 3rd transmission line (5) and load port (9), and the 3rd described transmission line (5) is connected with the second output port (8).
4. a kind of strong coupling device with air chamber according to claim 1, it is characterized in that, described front air chamber (1), first transmission line (3) and the 3rd transmission line (5), pcb board, second transmission line (4), and reverse side air chamber (2) sets gradually from top to bottom, forms five-layer structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410272705.9A CN105322267A (en) | 2014-06-18 | 2014-06-18 | Strong coupler with air cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410272705.9A CN105322267A (en) | 2014-06-18 | 2014-06-18 | Strong coupler with air cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105322267A true CN105322267A (en) | 2016-02-10 |
Family
ID=55249189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410272705.9A Pending CN105322267A (en) | 2014-06-18 | 2014-06-18 | Strong coupler with air cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105322267A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070103253A1 (en) * | 2005-11-07 | 2007-05-10 | Tdk Corporation | 180 Degrees hybrid coupler |
| US20080070519A1 (en) * | 2006-09-20 | 2008-03-20 | Renesas Technology Corp. | Directional coupler and rf circuit module |
| CN101171719A (en) * | 2005-03-08 | 2008-04-30 | 韦拉托内有限公司 | Coupler with edge and broadside coupled sections |
| CN101882704A (en) * | 2010-04-29 | 2010-11-10 | 合肥威科电子技术有限公司 | Novel air cavity bridge for microwave communication |
| CN204011654U (en) * | 2014-06-18 | 2014-12-10 | 凯镭思通讯设备（上海）有限公司 | Strong coupling device with air chamber |
-
2014
- 2014-06-18 CN CN201410272705.9A patent/CN105322267A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101171719A (en) * | 2005-03-08 | 2008-04-30 | 韦拉托内有限公司 | Coupler with edge and broadside coupled sections |
| US20070103253A1 (en) * | 2005-11-07 | 2007-05-10 | Tdk Corporation | 180 Degrees hybrid coupler |
| US20080070519A1 (en) * | 2006-09-20 | 2008-03-20 | Renesas Technology Corp. | Directional coupler and rf circuit module |
| CN101882704A (en) * | 2010-04-29 | 2010-11-10 | 合肥威科电子技术有限公司 | Novel air cavity bridge for microwave communication |
| CN204011654U (en) * | 2014-06-18 | 2014-12-10 | 凯镭思通讯设备（上海）有限公司 | Strong coupling device with air chamber |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160210 |
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| WD01 | Invention patent application deemed withdrawn after publication |