CN102623779B - A kind of integrated circulator - Google Patents
A kind of integrated circulator Download PDFInfo
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- CN102623779B CN102623779B CN201210114679.8A CN201210114679A CN102623779B CN 102623779 B CN102623779 B CN 102623779B CN 201210114679 A CN201210114679 A CN 201210114679A CN 102623779 B CN102623779 B CN 102623779B
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- circulator
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- 238000003466 welding Methods 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 14
- 239000011229 interlayer Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 14
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The present invention relates to a kind of integrated circulator, it comprises circulator, connector and the circuit board had on microstrip line, described circulator is arranged on the below of described circuit board, described connector arranges the top of described circuit board, the output of described circulator by the connected mode of welding or contact pin through described circuit board or get around on microstrip line that described circuit board is connected on circuit board, thus described circulator is connected with described circuit board signal, described connector is arranged on the top of described circuit board and is connected with described circuit board physical structure and signal.A kind of integrated circulator provided by the invention reduces the advantage accounting for plate area and minimizing veneer number of devices of circuit by possessing.
Description
Technical field
The present invention relates to field of wireless communication devices, refer in particular to a kind of integrated circulator.
Background technology
In existing wireless communication system; transmitter has an important part; be made up of parts such as power amplifier (PA), coupler, circulator/isolator, connector, duplexer and antennas; wherein coupler is used for the relevant monitoring function of link;, for the protection of power tube, output signal is transferred to duplexer by connector for circulator or isolator (circulator and power absorption load combinations form isolator).In the design that wireless domain is all similar, but along with Development of Wireless Communications, more and more higher to the requirement of miniaturization.Also miniaturization technology is had in the prior art: one, the miniaturization of individual devices, such as coupler gradually adopts LTCC (low temperature cofired ceramic, be called for short LTCC) etc. technique realize miniaturized, circulator is by the change of material, from 1.5 inches of (inch) → 1 inch → 0.75 inch → 0.5 inch, but run into bottleneck, connector is also same, and between each discrete device, need micro-band cabling, as Fig. 1 a and Fig. 1 b, coupler 3 and circulator 1 are all arranged on pcb board 2, same consumption area is more, cause existing discrete scheme cannot meet miniaturized requirement, two, the conjunction road of power amplifier, coupler, circulator/isolator, helpful to miniaturization.
The shortcoming of prior art comprises: 1, the electric bridge on power amplifier conjunction road is integrated in pcb board and can retrains Designing power amplifier, efficiency power amplifier is caused to decline, and consistency existing problems, in addition, this partial circuit power amplifier is larger, area own is more, even if integrated, miniaturization effect is not fine; 2, the program has saved area, but due to power amplifier closes cabling that road and coupler do must region beyond circulator area, constrain miniaturized effect; 3, circulator is placed on pcb board, and impact heat radiation, time particularly to high-power applications.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of integrated circulator, with problems such as the panel area solving the discrete devices such as circulator of the prior art, connector and coupler are larger.
Solving a kind of technical scheme that technical problem of the present invention adopts is: provide a kind of integrated circulator, it comprises circulator, for the connector that outputs signal and the circuit board with microstrip line, described circulator is arranged on the below of circuit board, described connector arranges the top of circuit board, the output of described circulator by the connected mode of welding or contact pin through circuit board or get around on microstrip line that circuit board is connected on circuit board, thus described circulator is connected with circuit board signal, described connector is arranged on the top of described circuit board and is connected with described circuit board physical structure and signal.
Solving the another kind of technical scheme that technical problem of the present invention adopts is: provide a kind of integrated circulator, it comprises the circulator with input and the coupler with input and output, described coupler is arranged on the left side of described circulator or right side and near the input of circulator, the input of described coupler, coupled end are positioned at the bottom of circulator, and coplanar with the bottom of circulator; The output of described coupler is connected with the input of circulator, realizes coupler and is connected with circulator signal; Described integrated circulator comprises circuit board and the connector for outputing signal further, described circuit board is arranged on the top of described circulator, adopt scolding tin or high-temp glue by described circulator and the physical structure of described circuit board and the connection of signal ground, described connector is arranged on the top of described circuit board and is connected with described circuit board physical structure and signal.
Wherein, the side of described circulator is provided with fluting, and described coupler is arranged in described fluting.
Solving another technical scheme that technical problem of the present invention adopts is: provide a kind of integrated circulator, it comprises circulator, circuit board and coupler, described coupler is arranged on the top of described circuit board, described circulator is arranged on the below of described circuit board, described coupler adopts microstrip line to realize and the physical structure of described circuit board and the connection of signal ground at the top of described circuit board, or be welded on the top of described circuit board, the input of described coupler and coupled end are connected to the bottom surface of described circuit board by contact pin mode, the output of described coupler is connected with the input of described circulator or output, the input of described circulator is connected on the circuit board that is positioned at above described circulator.This integrated circulator comprises further and being connected and the connector outputed signal with described circuit board physical connection and signal.
Solving another technical scheme that technical problem of the present invention adopts is: provide a kind of integrated circulator, it comprises circulator, first circuit board, second circuit board, for the connector outputed signal, and coupler, described coupler is arranged on described first circuit board, described coupler becomes a part for described first circuit board, connected by the microstrip line of interlayer and be connected with described first circuit board, described circulator is arranged on the top of described first circuit board, described second circuit board is arranged on the top of described circulator, described connector is arranged on the top of described second circuit board and is connected with described second circuit board physical connection and signal, the output of described coupler is connected with the input of circulator, the input of described circulator is connected on first circuit board, by the physical structure of circulator and first circuit board and second circuit board and signal being connected by scolding tin or high-temp glue, the output of described circulator is electrically connected with described second circuit board and signal is connected.。
Compared with prior art, a kind of integrated circulator provided by the invention due to by about each device or setting up and down, therefore possesses following advantage: what 1, reduce circuit accounts for plate area.2, veneer device count is reduced.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 a is the vertical view of the distribution of existing circulator and other elements.
Fig. 1 b is the front view of the distribution of existing circulator and other elements.
Fig. 2 a is the vertical view of the first embodiment of a kind of integrated circulator of the present invention.
Fig. 2 b is the front view of the first embodiment of a kind of integrated circulator of the present invention.
Fig. 3 a is the vertical view of the second embodiment of a kind of integrated circulator of the present invention.
Fig. 3 b is the front view of the second embodiment of a kind of integrated circulator of the present invention.
Fig. 4 a is the vertical view of the 3rd embodiment of a kind of integrated circulator of the present invention.
Fig. 4 b is the front view of the 3rd embodiment of a kind of integrated circulator of the present invention.
Fig. 5 a is the vertical view of the 4th embodiment of a kind of integrated circulator of the present invention.
Fig. 5 b is the front view of the 4th embodiment of a kind of integrated circulator of the present invention.
Fig. 6 a is the vertical view of the 5th embodiment of a kind of integrated circulator of the present invention.
Fig. 6 b is the front view of the 5th embodiment of a kind of integrated circulator of the present invention.
Fig. 7 a is the vertical view of the 6th embodiment of a kind of integrated circulator of the present invention.
Fig. 7 b is the front view of the 6th embodiment of a kind of integrated circulator of the present invention.
Fig. 8 a is the vertical view of the 7th embodiment of a kind of integrated circulator of the present invention.
Fig. 8 b is the front view of the 7th embodiment of a kind of integrated circulator of the present invention.
Fig. 9 a is the vertical view of the 8th embodiment of a kind of integrated circulator of the present invention.
Fig. 9 b is the front view of the 8th embodiment of a kind of integrated circulator of the present invention.
Figure 10 a is the vertical view of the 9th embodiment of a kind of integrated circulator of the present invention.
Figure 10 b is the front view of the 9th embodiment of a kind of integrated circulator of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with accompanying drawing and multiple specific embodiment, the present invention is described in further details.
Embodiment one:
A kind of integrated circulator that the embodiment of the present invention one provides is undertaken integrated up and down by circulator and connector, connector device is located at above circulator, see Fig. 2 a and Fig. 2 b, (this circuit board is pcb board or ltcc substrate etc. connector 30 to be arranged on this circulator 10 and circuit board 20, in the present embodiment, this circuit board is pcb board) top, this circulator 10 is arranged on the below of pcb board 20.Circulator in schematic diagram is not limited to the existing circulator (circulator and power absorption load combinations form isolator) of this form.The bending pins of the output 14 of this circulator 10 upwards, by welding or the connected mode such as contact pin through pcb board 20 or get around pcb board 20 and be connected on microstrip line 40, achieves circulator 10 and is connected with the signal of the pcb board 20 at top.Isolation is the power resistor of integrated one 50 ohm, the 3rd end (isolation end) at circulator.
As required, the area of this pcb board 20 can be identical with the topside area of circulator 10, also can be less.This pcb board 20 is fixed on the top of circulator 10 by the fixed form such as scolding tin or high-temp glue, screw etc. also can be adopted to be fixed, and the physical structure and the signal that realize circulator 10 and pcb board 20 are connected.
Above this pcb board 20 and lower end of this connector 30 is provided with the pad of connector 30, and this pad is arranged on the center of this pcb board 20, can be placed on other places as required, such as near the output of this circulator 10, reduce this pcb board 20 track lengths; This connector 30 is placed by this pad, realizes the connection of connector 30 and circulator 10 and miscellaneous part.The input pin 12 of this circulator 10, output pin 14 and plane (i.e. metal shell, does not show) around need the distance of minimum about 1mm.
Embodiment two:
A kind of integrated circulator that the embodiment of the present invention two provides circulator and coupler is carried out left side or right side is vertical integrated, and see Fig. 3 a and Fig. 3 b, the circulator in diagram is not limited to the circulator 210 of this form.The device that this coupler 230 can use the materials such as PTFE or LTCC to make, this coupler 230 can be the 20dB degree of coupling or other degrees of coupling.This coupler 230 can adopt the material such as scolding tin, high-temp glue to be fixed on the side of circulator 210, the bottom of the input of this coupler 230 and coupled end and circulator 210 is coplanar, and the output of this coupler 230 and the input 212 of circulator 210 are by weld or other modes are connected;
The input 212 of this circulator 210, the pin of output 214 and plane (i.e. metal shell, does not show) the minimum distance needing about 1mm peripherally.
Coupler 230 is placed on the side of circulator 210, near the input 212 of circulator, is fixed by scolding tin or high-temp glue etc., realizes the connection of the physical structure of coupler 230 and circulator 210.Coupler 230 ensures coplanar with the bottom of circulator 210, and the input of coupler 230, coupled end are positioned at the bottom of circulator, and coplanar with the bottom of circulator; The output of coupler 230 is connected with the pin of the input 212 of circulator 210, realizes coupler 230 be connected with the signal of circulator 210 by materials such as scolding tin, but does not limit signal a kind of with this to be connected.
Embodiment three:
A kind of integrated circulator that the embodiment of the present invention three provides also is that circulator and coupler to be carried out left side vertical integrated, similar with embodiment two, is only embedded in circulator by coupler.See Fig. 4 a and Fig. 4 b, the circulator in figure is not limited to the circulator 310 of this form.The device that this coupler 330 can use the materials such as PTFE or LTCC to make, this coupler 330 can be the 20dB degree of coupling or other degrees of coupling.This coupler 330 can adopt the material such as scolding tin, high-temp glue to be fixed on the side of circulator 310, the bottom of the input of this coupler 330 and coupled end and circulator 310 is coplanar, and the output of this coupler 330 and the input 312 of circulator 310 are by weld or other modes are connected;
The input 312 of this circulator 310, the pin of output 314 and plane (i.e. metal shell, does not show) the minimum distance needing about 1mm peripherally.
Coupler 330 is embedded in the fluting 318 of the side of circulator 310, near the input 212 of circulator, the groove for placing coupler 330 is offered in the side of circulator 310, additionally by the outer wall of thickened ring-shaped device 310, can increase coupler 330 installing space.Be fixed by scolding tin or high-temp glue etc., realize the connection of the physical structure of coupler 330 and circulator 310.Coupler 330 ensures coplanar with the bottom of circulator 310, and the input of coupler 330, coupled end are positioned at the bottom of circulator 310 and coplanar with the bottom of circulator 310; The output of coupler 330 is connected with the pin of the input 312 of circulator 310, realizes coupler 330 be connected with the signal of circulator 310 by materials such as scolding tin, but does not limit signal a kind of with this to be connected.
Embodiment four:
A kind of integrated circulator that the embodiment of the present invention four provides is that circulator and coupler to be carried out upper-lower position integrated, and see Fig. 5 a and Fig. 5 b, the circulator shown in figure is not limited to the circulator of this form.
Coupler 430 can adopt microstrip line (not shown) to realize on the top of circuit board 420 and the physical structure of this circuit board 420 and the connection of signal ground, and existing device also can be used to be welded on the top of this circuit board 420.This circuit board 420 adopts RF4, LTCC, Rogers of one deck or multilayer or other materials to be prepared from.The input of this coupler 430 and coupled end are connected to the bottom surface of this circuit board 420 by contact pin or other modes, the output of this coupler 430 is connected with the input 412 of circulator 410 or output 414, the pin of the input 412 of this circulator 410 upwards bends, be connected on the circuit board 420 that is located thereon, but do not limit signal a kind of with this to be connected.The input 412 of this circulator 410, the pin of output 414 and plane (i.e. metal shell, does not show) the minimum distance needing about 1mm peripherally.
Embodiment five:
A kind of integrated circulator that the embodiment of the present invention five provides is undertaken integrated by circulator and coupler, and see Fig. 6 a and Fig. 6 b, circulator is not limited to the circulator of this form.Coupler (not shown) is arranged on circuit board 520, becomes a part for this circuit board 520, connected by the microstrip line of interlayer.This circuit board 520 adopts RF4, LTCC, Rogers of one deck or multilayer or other materials to make, and this circuit board 520 also can adopt pcb board.This coupler is directly connected with circulator 510.This circulator 510 adopts scolding tin or high-temp glue to be fixed on this circuit board 520, realizes circulator 510 and the physical structure of circuit board 520 and the connection of signal ground.
Embodiment six:
In a kind of integrated circulator that the embodiment of the present invention six provides, circulator and connector are integrated up and down, the integrated coupler in circulator side, thus realize coupler, circulator, connector integrated, see Fig. 7 a and Fig. 7 b, the circulator shown in Fig. 6 is not limited to the circulator of this form.Left side except this circulator 610 is provided with except coupler 630, other parts and the embodiment of the present invention one similar.
The device that this coupler 630 can use the materials such as PTFE or LTCC to make, this coupler 630 can be the 20dB degree of coupling or other degrees of coupling.
This coupler 630 can adopt the material such as scolding tin, high-temp glue to be fixed on the side of circulator, the bottom of its input and coupled end and circulator 610 is coplanar, and the output of this coupler 630 and the input 612 of this circulator 610 are by weld or other modes are connected.
Place circuit board 620 above this circulator 610, the plate that this circuit board 620 adopts pcb board or is made up of materials such as LTCC, and fix by scolding tin or high-temp glue, realize circulator 610 and the physical structure of circuit board 620 and the connection of signal ground.This circuit board 620 realizes connector 640 and the physical structure of circulator 610 and the connection of signal.Above the circuit board 620 being fixed on the top of circulator 610 after the bending pins of the output 614 of circulator 610, realize circulator 610 and be connected with the signal of circuit board 620.Connector 640 device is on circuit board 620, and the physical structure realizing connector is fixed and the connection of signal.Coupler 630 is placed on the side of circulator 610, near the input 612 of circulator 610, is fixed, realizes the connection of the physical structure of coupler 630 and circulator 610 by scolding tin or high-temp glue etc.Coupler 630 ensures coplanar with the bottom of circulator 610, and the input of coupler 630, coupled end are positioned at the bottom of circulator 610 and coplanar with circulator 610.The output of coupler 630 is connected with the pin of the input 614 of circulator 610, realizes coupler 630 be connected with the signal of circulator 610 by materials such as scolding tin.
Embodiment seven:
The embodiment of the present invention seven is roughly the same with embodiment six, see Fig. 8 a and Fig. 8 b, is only arranged on by coupler 730 in the fluting 718 of circulator 710 1 side.
Embodiment eight:
The embodiment of the present invention eight is roughly the same with embodiment four.In a kind of integrated circulator that the embodiment of the present invention eight provides, on the circuit board 820 at circulator 810 top integrated coupler 830 and on circuit board 820 integrated connector 840, thus realize coupler, circulator, connector integrated, see Fig. 9 a and Fig. 9 b.
Coupler 830 can adopt the microstrip line (not shown) on the circuit board 820 being positioned at top to realize signal connection.The input of coupler 830 and coupled end are connected to the bottom surface of circuit board 820 by contact pin or other modes, the output of coupler 830 is connected with the input 812 of circulator 810, the pin of the input 812 of circulator 810 upwards bends, be connected on the circuit board 820 at top, realize circulator 810 and be connected with the signal of circuit board 820.The input 812 of circulator 810, the pin of output 814 and the minimum distance needing about 1mm of plane (i.e. metal shell) peripherally.
This connector 840, coupler 830 are arranged on circuit board 820, realize physical structure and fix and the connection of signal, but be not limited to this two kinds of devices, as required can by other function element devices on circuit board 820.
Embodiment nine:
In a kind of integrated circulator that the embodiment of the present invention nine provides, integrated coupler on first circuit board bottom circulator, second circuit board is set at circulator top, in the centre of second circuit board, connector is set, thus realize coupler, circulator, connector integrated, see Figure 10 a and Figure 10 b, coupler is integrated on the first circuit board 920 of bottom, realizes electrical connection by the microstrip line of interlayer.This first circuit board 920 adopts RF4, LTCC, Rogers of one deck or multilayer or other materials to make.The output of coupler is connected with the input 912 of circulator 910 or output, and the pin of the input 912 of circulator 910 bends downwards and is connected on first circuit board 920.Connector 940 is arranged on the top of circulator 910 and second circuit board 922.By by scolding tin or high-temp glue by circulator 910 and first circuit board 920 and the physical structure of second circuit board 922 and connecting of signal ground.Be fixed on the second circuit board 922 at the top of circulator 910 after the pin of the output 914 of circulator 910 upwards bends, realize circulator 910 and be connected with the signal of the second circuit board 922 at top.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an integrated circulator, it comprises circulator, for the connector that outputs signal and the circuit board with microstrip line, it is characterized in that: described circulator is arranged on the below of described circuit board, described connector arranges the top of described circuit board, described connector device is located at the top of described circulator, the output of described circulator by the connected mode of welding or contact pin through described circuit board or get around on microstrip line that described circuit board is connected on circuit board, thus described circulator is connected with described circuit board signal, described connector is arranged on the top of described circuit board and is connected with described circuit board physical structure and signal.
2. an integrated circulator, it comprises the circulator with input and the coupler with input and output, it is characterized in that: described coupler is arranged on the left side of described circulator or right side and near the input of circulator, the input of described coupler, coupled end are positioned at the bottom of circulator, and coplanar with the bottom of circulator; The output of described coupler is connected with the input of circulator, realize coupler to be connected with circulator signal, described integrated circulator comprises circuit board and the connector for outputing signal further, described circuit board is arranged on the top of described circulator, adopt scolding tin or high-temp glue by described circulator and the physical structure of described circuit board and the connection of signal ground, described connector is arranged on the top of described circuit board and is connected with described circuit board physical structure and signal.
3. circulator integrated as claimed in claim 2, is characterized in that: the side of described circulator is provided with fluting, and described coupler is arranged in described fluting.
4. an integrated circulator, it comprises circulator, circuit board and coupler, it is characterized in that: described coupler is arranged on the top of described circuit board, described circulator is arranged on the below of described circuit board, described coupler adopts microstrip line to realize and the physical structure of described circuit board and the connection of signal ground at the top of described circuit board, or be welded on the top of described circuit board, the input of described coupler and coupled end are connected to the bottom surface of described circuit board by contact pin mode, the output of described coupler is connected with the input of described circulator or output, the input of described circulator is connected on the circuit board that is positioned at above described circulator, described integrated circulator comprises further and to be connected with described circuit board physical connection and signal and connector for outputing signal.
5. an integrated circulator, it comprises circulator, first circuit board, second circuit board, for the connector outputed signal, and coupler, it is characterized in that: described coupler is arranged on described first circuit board, described coupler becomes a part for described first circuit board, connected by the microstrip line of interlayer and be connected with described first circuit board, described circulator is arranged on the top of described first circuit board, described second circuit board is arranged on the top of described circulator, described connector is arranged on the top of described second circuit board and is connected with described second circuit board physical connection and signal, the output of described coupler is connected with the input of circulator, the input of described circulator is connected on first circuit board, by the physical structure of circulator and first circuit board and second circuit board and signal being connected by scolding tin or high-temp glue, the output of described circulator is connected with described second circuit partitioned signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210114679.8A CN102623779B (en) | 2012-04-18 | 2012-04-18 | A kind of integrated circulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210114679.8A CN102623779B (en) | 2012-04-18 | 2012-04-18 | A kind of integrated circulator |
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| CN102623779A CN102623779A (en) | 2012-08-01 |
| CN102623779B true CN102623779B (en) | 2015-09-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205104596U (en) * | 2015-10-28 | 2016-03-23 | 世达普(苏州)通信设备有限公司 | Communication device |
| US11108125B2 (en) * | 2018-08-30 | 2021-08-31 | Shenzhen Huayang Technology Development Co., Ltd. | High-efficiency integrated circulator/isolator |
| CN111030617B (en) * | 2019-12-31 | 2024-02-23 | 京信网络系统股份有限公司 | Power amplifier |
| CN112399711B (en) * | 2020-09-28 | 2022-09-06 | 浙江三维利普维网络有限公司 | High-power amplifier module and high-power amplifier module assembling method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131814A (en) * | 1994-08-30 | 1996-09-25 | 株式会社村田制作所 | Intergrated circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2208202B1 (en) * | 1972-11-28 | 1977-04-08 | Thomson Csf | |
| KR101136519B1 (en) * | 2010-03-09 | 2012-04-17 | (주)파트론 | Intergrated coupler-circulator and power amplifier compring the same |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131814A (en) * | 1994-08-30 | 1996-09-25 | 株式会社村田制作所 | Intergrated circuit |
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Effective date of registration: 20211223 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |