CN203932276U - A kind of 3dB electric bridge - Google Patents
A kind of 3dB electric bridge Download PDFInfo
- Publication number
- CN203932276U CN203932276U CN201420166236.8U CN201420166236U CN203932276U CN 203932276 U CN203932276 U CN 203932276U CN 201420166236 U CN201420166236 U CN 201420166236U CN 203932276 U CN203932276 U CN 203932276U
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- coupling part
- coupling
- electric bridge
- line
- coupling line
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Abstract
The utility model discloses a kind of 3dB electric bridge, by the first coupling part and second coupling part of annular arranging, can make annular coupling effect greatly strengthen, its coupling coefficient calculating by simulation software is high, and coupling frequency can reach 2950KHZ, has met greatly the requirement of current main flow LTE technical standard, its practicality increases greatly, it is simple in structure in addition, difficult bad, long service life.
Description
Technical field
The utility model relates to same frequency combiner accessory technical field, is specifically related to a kind of 3dB electric bridge.
Background technology
In same frequency combiner, main component is exactly 3dB electric bridge, and 3dB electric bridge is a kind of electric device that two kinds of identical signals of frequency is coupled into a road signal output; It requires the degree of coupling high, and accurately, frequency range is wide; In the communications industry, be widely used, wherein, in the newly-increased standard LTE of the communications industry, the frequency range of LTE standard-required is 2570MHz-2750MHz, in same frequency combiner in the market, the general coupling frequency width of 3dB electric bridge adopting is 600MHz-2400MHz, can not meet the frequency range of newly-increased LTE standard-required.In addition, 3dB in the market, for reaching wideband object, adopts different coupling line forms, causes mould waste, therefore has the shortcoming that production cost is higher.
Summary of the invention
The purpose of this utility model is to overcome above-described shortcoming, provides that a kind of coupling frequency is wide can reach 2950MHZ and two coupling line shapes are identical, cost-effective 3dB electric bridge.
For achieving the above object, concrete scheme of the present utility model is as follows: a kind of 3dB electric bridge, include the first coupling line and the second coupling line, the first output pin that described the first coupling line comprises the first coupling part of annular, extend upward from the first coupling part one skew back, from oblique downward the first input pin stretching out of the first coupling part opposite side; The free end of described the first output pin is established the first output, and the free end of the first input pin is established first input end;
The second output pin that described the second coupling line comprises the second coupling part of annular, extend upward from the second coupling part one skew back, from oblique downward the second input pin stretching out of the second coupling part opposite side; The free end of described the second output pin is established the second output, and the free end of the first input pin is established the second input;
Described the first coupling line is parallel with the second coupling line and overlap, and between the first coupling part and the second coupling part are heavy, distance is 4mm-8mm;
The both sides of described the first coupling part and the second coupling part are respectively equipped with installing hole, between the installing hole of described the first coupling part and the corresponding installing hole of the second coupling part, be provided with insulation column, between described the first coupling part and the second coupling part, fix by insulation column.
Wherein, described the first coupling line is identical with the second coupling line shape and be symmetrical arranged.
Wherein, the interior ring diameter of described the first coupling part and the second coupling part is 25mm.
Wherein, on each insulation column, be equipped with twice draw-in groove, and the twice draw-in groove of each insulation cylinder distance equates.
Wherein, between the first coupling part and the second coupling part weight, distance is 5mm.
The beneficial effects of the utility model are: by the first coupling part and second coupling part of annular arranging, can make annular coupling effect greatly strengthen, its coupling coefficient calculating by simulation software is high, coupling frequency can reach 2950KHZ, met greatly the requirement of current main flow LTE technical standard, its practicality increases greatly, and it is simple in structure in addition, difficult bad, long service life.
Brief description of the drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is the front view of the first coupling line;
Fig. 3 is the front view of the second coupling line;
Fig. 4 is the front view that utilizes the same frequency combiner of the utility model making;
Fig. 5 is the first coupling line, the second coupling line and the insulation column profile while coordinating;
Fig. 6 is that the utility model reaches the curve synoptic diagram of high coupling frequency in simulation software;
Description of reference numerals in Fig. 1 to Fig. 6:
1-the first coupling line; 11-the first coupling part; 12-the first output pin; 13-the first input pin; 14-the first output; 15-the first declutcher control lever;
2-the second coupling line; 21-the second coupling part; 22-the second output pin; 23-the second input pin; 24-the second output; 25-the second declutcher control lever;
3-installing hole; 3a-insulation column;
4-housing.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model being described in further detail, is not that practical range of the present utility model is confined to this.
As shown in Figures 1 to 6, a kind of 3dB electric bridge described in the present embodiment, include the first coupling line 1 and the second coupling line 2, the first output pin 12 that described the first coupling line 1 comprises the first coupling part 11 of annular, extend upward from the first coupling part 11 1 skew backs, from oblique downward the first input pin 13 stretching out of the first coupling part 11 opposite side; The free end of described the first output pin 12 is established the free end of the first output 14, the first input pins 13 and is established first input end; The second output pin 22 that described the second coupling line 2 comprises the second coupling part 21 of annular, extend upward from the second coupling part 21 1 skew backs, from oblique downward the second input pin 23 stretching out of the second coupling part 21 opposite side; The free end of described the second output pin 22 is established the free end of the second output 24, the first input pins 13 and is established the second input; Described the first coupling line 1 is parallel with the second coupling line 2 and overlap, and between the first coupling part 11 and the second coupling part 21 are heavy, distance is 4mm-8mm; The both sides of described the first coupling part 11 and the second coupling part 21 are respectively equipped with installing hole 3, between the corresponding installing hole 3 of the installing hole 3 of described the first coupling part 11 and the second coupling part 21, be provided with insulation column 3a, between described the first coupling part 11 and the second coupling part 21, fix by insulation column 3a.By the first coupling part 11 and second coupling part 21 of annular arranging, can make annular coupling effect greatly strengthen, its coupling coefficient calculating by simulation software is high, coupling frequency can reach 2950KHZ, met greatly the requirement of current main flow LTE technical standard, its practicality increases greatly, and it is simple in structure in addition, difficult bad, long service life.
Further, the corresponding same frequency combiner with it that utilizes that 3dB electric bridge described in the present embodiment makes, includes housing 4 and 3dB electric bridge described above; Above-mentioned 3dB electric bridge is fixed on the same frequency combiner of the interior formation of housing 4.
Further, a kind of 3dB electric bridge described in the present embodiment, described the first coupling line 1 is identical with the second coupling line 2 shapes and be symmetrical arranged; So arrange, the first coupling line 1 and the second coupling line 2 are made in same mould, saved the cost of mould, reduced raw-material cost, improved production efficiency, reduced rate of failure.
Further, a kind of 3dB electric bridge described in the present embodiment, the interior ring diameter of described the first coupling part 11 and the second coupling part 21 is 25mm; Calculate by emulation of the computer software, in the time that the interior ring diameter of the first coupling part 11 and the second coupling part 21 is 25mm, its frequency broadband optimum, effect is best.
Further, a kind of 3dB electric bridge described in the present embodiment, is equipped with twice draw-in groove on each insulation column 3a, and the twice draw-in groove of each insulation cylinder distance equates; So arrange, can control accurately the distance between the first coupling part 11 and the second coupling part 21, prevent the distortion that the variation of distance tells on.
Further, a kind of 3dB electric bridge described in the present embodiment, between the first coupling part 11 and the second coupling part 21 are heavy, distance is 5mm.Calculate by emulation of the computer software, in the time that between a coupling part and the second coupling part 21 weights, distance is 5mm, its frequency broadband optimum, effect is best.
Further, a kind of 3dB electric bridge described in the present embodiment, the downward first square declutcher control lever 15 that is extended with of interior hoop of the first coupling part 11, the transverse width of described the first declutcher control lever 15 is 2mm, is vertically highly 3mm; By the first declutcher control lever 15 arranging, can make the isolation of electric bridge greatly increase, by emulation of the computer software, known, so setting can reach the isolation of 25db.
Further, a kind of 3dB electric bridge described in the present embodiment, the downward second square declutcher control lever 25 that is extended with of interior hoop of the second coupling part 21, the transverse width of described the second declutcher control lever 25 is 2mm, is vertically highly 3mm.The same, by the second declutcher control lever 25 arranging, can make the isolation of electric bridge greatly increase, by emulation of the computer software, known, so setting can reach the isolation of 25db.
The above is only a preferred embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the protection range of the utility model patent application.
Claims (5)
1. a 3dB electric bridge, includes the first coupling line (1) and the second coupling line (2),
It is characterized in that: the first output pin (12) that described the first coupling line (1) comprises first coupling part (11) of annular, extend upward from the first coupling part (11) one skew backs, from oblique downward the first input pin (13) stretching out of the first coupling part (11) opposite side; The free end of described the first output pin (12) is established the first output (14), and the free end of the first input pin (13) is established first input end;
The second output pin (22) that described the second coupling line (2) comprises second coupling part (21) of annular, extend upward from the second coupling part (21) one skew backs, from oblique downward the second input pin (23) stretching out of the second coupling part (21) opposite side; The free end of described the second output pin (22) is established the second output (24), and the free end of the first input pin (13) is established the second input;
Described the first coupling line (1) is parallel with the second coupling line (2) and overlap, and between the first coupling part (11) and the second coupling part (21) are heavy, distance is 4mm-8mm;
Described the first coupling part (11) is respectively equipped with installing hole (3) with the both sides of the second coupling part (21), between the installing hole (3) of described the first coupling part (11) and the corresponding installing hole (3) of the second coupling part (21), be provided with insulation column (3a), fixing by insulation column (3a) between described the first coupling part (11) and the second coupling part (21).
2. a kind of 3dB electric bridge according to claim 1, is characterized in that: described the first coupling line (1) is identical with the second coupling line (2) shape and be symmetrical arranged.
3. a kind of 3dB electric bridge according to claim 2, is characterized in that: the interior ring diameter of described the first coupling part (11) and the second coupling part (21) is 25mm.
4. a kind of 3dB electric bridge according to claim 1, is characterized in that: on each insulation column (3a), be equipped with twice draw-in groove, and the twice draw-in groove of each insulation cylinder distance equates.
5. a kind of 3dB electric bridge according to claim 1, is characterized in that: between the first coupling part (11) and the second coupling part (21) are heavy, distance is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420166236.8U CN203932276U (en) | 2014-04-08 | 2014-04-08 | A kind of 3dB electric bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420166236.8U CN203932276U (en) | 2014-04-08 | 2014-04-08 | A kind of 3dB electric bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203932276U true CN203932276U (en) | 2014-11-05 |
Family
ID=51828040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420166236.8U Expired - Fee Related CN203932276U (en) | 2014-04-08 | 2014-04-08 | A kind of 3dB electric bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203932276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904400A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | 3dB bridge |
-
2014
- 2014-04-08 CN CN201420166236.8U patent/CN203932276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904400A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | 3dB bridge |
| CN103904400B (en) * | 2014-04-08 | 2017-12-15 | 徐玉玉 | A kind of 3dB electric bridges |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150408 |
|
| EXPY | Termination of patent right or utility model |