CN203690468U - Power combiner used for RF signals - Google Patents
Power combiner used for RF signals Download PDFInfo
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- CN203690468U CN203690468U CN201320858428.0U CN201320858428U CN203690468U CN 203690468 U CN203690468 U CN 203690468U CN 201320858428 U CN201320858428 U CN 201320858428U CN 203690468 U CN203690468 U CN 203690468U
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- metal
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- metal area
- strip line
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- 239000002184 metal Substances 0.000 claims abstract description 94
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 abstract description 6
- 230000037431 insertion Effects 0.000 abstract description 6
- 239000003990 capacitor Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model discloses a power combiner used for RF (Radio Frequency) signals, comprising: a PCB (Printed Circuit Board) substrate, a first metal microstrip line, a second metal microstrip line and an output metal area which are isolated from each other on the PCB substrate; wherein one end of the first metal microstrip line and one end of the second metal microstrip line are respectively connected to a first input metal area and a second input metal area; a first capacitor is arranged between the first metal microstrip line and the output metal area, a second capacitor is arranged between the second metal microstrip line and the output metal area; a resistor is arranged between the first input metal area and the second input metal area in a bridge connection way, both the first metal microstrip line and the second metal microstrip line consist of a plurality of first arc microstrip strips and second arc microstrip strips which are arranged alternatively in a head-to-tail way, the first arc microstrip strips are arranged outwards, and the second arc microstrip strips are arranged inwards. The power combiner of the utility model not only reduces the structural area of the whole power combiner, but also reduces insertion loss and contributes to adjustment of inductance.
Description
Technical field
The utility model relates to a kind of power combiner, relates in particular to a kind of radiofrequency signal power combiner.
Background technology
In power amplification application, the output of multiple power amplifier tubes need to be increased to power output by power combiner.The structure of traditional power combiner is two-way microstrip line Wilkinson power combiner, is illustrated in fig. 1 shown below.Suppose that the load of each port equals the characteristic impedance Z 0 of transmission line, when from the 3 constant powers input of port 2 and port, port one will synthesize higher than port 2(or port 3) power output of 3dB.The advantage of this power combiner is simple in structure, broader bandwidth, isolation resistance (2Z0) makes can obtain good isolation performance between port 2 and port 3, but owing to having adopted microstrip line construction, make the chip area of Wilkinson power combiner larger, be exactly that insertion loss is larger in addition, be difficult to be applied to more high power and synthesize.
Summary of the invention
The utility model provides a kind of radiofrequency signal power combiner, and this radiofrequency signal, has also reduced insertion loss and has been conducive to adjust inductance with power combiner in dwindling whole power combiner structural area.
For achieving the above object, the technical solution adopted in the utility model is: a kind of radiofrequency signal power combiner, comprise: PCB substrate, the first metal micro-strip line that is positioned on this PCB substrate isolation mutually, the second metal micro-strip line and for exporting the output metal area of radiofrequency signal, this first metal micro-strip line, second microstrip line one end are connected respectively to for the first input metal area of received RF signal, the second input metal area; Between described the first metal micro-strip line and output metal area, be provided with the first electric capacity, between described the second metal micro-strip line and output metal area, be provided with the second electric capacity; One resistance is connected across between the first input metal area, the second input metal area, described the first metal micro-strip line, the second metal micro-strip line connect to form by the micro-tape of the first arc, the micro-tape head and the tail of the second arc of some alternative arrangements, the micro-tape of the first arc is arranged toward the outer side, and the micro-tape of the second arc is arranged towards inner side.
In technique scheme, further improve technical scheme as follows:
In such scheme, described resistance is inputted metal area by helping layer to be electrically connected with the first input metal area, second, between described the first electric capacity two ends and the first metal micro-strip line and output metal area, by helping layer be electrically connected, described the second electric capacity two ends are with the second metal micro-strip line and export between metal area by helping layer to be electrically connected.
Because technique scheme is used, the utility model compared with prior art has following advantages:
The utility model blind power synthesizer, its first metal micro-strip line, second microstrip line one end are connected respectively to the first input metal area, the second input metal area; Between described the first metal micro-strip line and output metal area, be provided with the first electric capacity, between described the second metal micro-strip line and output metal area, be provided with the second electric capacity; One resistance is connected across between the first input metal area, the second input metal area, described the first metal micro-strip line, the second metal micro-strip line connect to form by some micro-tape head and the tail, angle between adjacent micro-tape is 25 ~ 80 degree, in dwindling whole power combiner structural area, also reduce insertion loss and be conducive to adjust inductance.
Brief description of the drawings
Accompanying drawing 1 is existing power combiner structural representation;
Accompanying drawing 2 is the utility model radiofrequency signal power combiner structural representation;
Accompanying drawing 3 is the utility model power combiner partial cutaway schematic one;
Accompanying drawing 4 is the utility model power combiner partial cutaway schematic two.
In above accompanying drawing: 1, PCB substrate; 2, the first metal micro-strip line; 3, the second metal micro-strip line; 4, output metal area; 5, the first input metal area; 6, the second input metal area; 7, the first electric capacity; 8, the second electric capacity; 9, resistance; 10, help layer; 11, the micro-tape of the first arc; 12, the micro-tape of the second arc.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of radiofrequency signal power combiner, comprise: PCB substrate 1, the first metal micro-strip line 2 that is positioned on this PCB substrate 1 isolation mutually, the second metal micro-strip line 3 and for exporting the output metal area 4 of radiofrequency signal, this first metal micro-strip line 2, second microstrip line 3 one end are connected respectively to the first input metal area 5, the second input metal area 6 for received RF signal; Between described the first metal micro-strip line 2 and output metal area 4, be provided with the first electric capacity 7, between described the second metal micro-strip line 3 and output metal area 4, be provided with the second electric capacity 8; One resistance 9 is connected across between the first input metal area 5, the second input metal area 6, described the first metal micro-strip line 2, the second metal micro-strip line 3 connect to form by the micro-tape 11 of the first arc, micro-tape 12 head and the tail of the second arc of some alternative arrangements, the micro-tape 11 of the first arc is arranged toward the outer side, and the micro-tape 12 of the second arc is arranged towards inner side.
Above-mentioned resistance 9 and first is inputted metal area 5, the second input metal area 6 by helping layer 10 to be electrically connected, between described the first electric capacity 7 two ends and the first metal micro-strip line 2 and output metal area 4, by helping layer 10 to be electrically connected, described the second electric capacity 8 two ends are with the second metal micro-strip line 3 and export between metal area 4 by helping layer 10 to be electrically connected.
The impedance of above-mentioned output metal area 4, the first input metal area 5, the second input metal area 6 is 50 Ω.
Adopt the structure of high Q value capacitor resonant circuit, in dwindling whole power combiner structural area, also reduced insertion loss, two bifurcateds of port 2 and port 3 prop up that the original quarter-wave microstrip line of route is improved to a high Q value electric capacity and one section of microstrip line is composed in series resonant circuit.Being introduced in of high Q value electric capacity also reduced insertion loss when reducing chip area.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.
Claims (2)
1. a radiofrequency signal power combiner, it is characterized in that: comprising: PCB substrate (1), the first metal micro-strip line (2) that is positioned at the upper isolation mutually of this PCB substrate (1), the second metal micro-strip line (3) and for exporting the output metal area (4) of radiofrequency signal, this first metal micro-strip line (2), the second microstrip line (3) one end are connected respectively to for the first input metal area (5) of received RF signal, the second input metal area (6); Between described the first metal micro-strip line (2) and output metal area (4), be provided with the first electric capacity (7), between described the second metal micro-strip line (3) and output metal area (4), be provided with the second electric capacity (8); One resistance (9) is connected across between the first input metal area (5), the second input metal area (6), described the first metal micro-strip line (2), the second metal micro-strip line (3) connect to form by the micro-tape of the first arc (11), the micro-tape of the second arc (12) head and the tail of some alternative arrangements, the micro-tape of the first arc (11) is arranged toward the outer side, and the micro-tape of the second arc (12) is arranged towards inner side.
2. radiofrequency signal power combiner according to claim 1, it is characterized in that: described resistance (9) is inputted metal area (6) by helping layer (10) to be electrically connected with the first input metal area (5), second, between described the first electric capacity (7) two ends and the first metal micro-strip line (2) and output metal area (4), by helping layer (10) be electrically connected, described the second electric capacity (8) two ends are with the second metal micro-strip line (3) and export between metal area (4) by helping layer (10) to be electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858428.0U CN203690468U (en) | 2013-12-24 | 2013-12-24 | Power combiner used for RF signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858428.0U CN203690468U (en) | 2013-12-24 | 2013-12-24 | Power combiner used for RF signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690468U true CN203690468U (en) | 2014-07-02 |
Family
ID=51012339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320858428.0U Expired - Lifetime CN203690468U (en) | 2013-12-24 | 2013-12-24 | Power combiner used for RF signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115313007A (en) * | 2022-04-12 | 2022-11-08 | 河北军澍电子科技有限公司 | Ultra-wideband miniaturized microstrip power divider |
-
2013
- 2013-12-24 CN CN201320858428.0U patent/CN203690468U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115313007A (en) * | 2022-04-12 | 2022-11-08 | 河北军澍电子科技有限公司 | Ultra-wideband miniaturized microstrip power divider |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |