CN105024128A - 3dB bridge - Google Patents
3dB bridge Download PDFInfo
- Publication number
- CN105024128A CN105024128A CN201510514061.4A CN201510514061A CN105024128A CN 105024128 A CN105024128 A CN 105024128A CN 201510514061 A CN201510514061 A CN 201510514061A CN 105024128 A CN105024128 A CN 105024128A
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- Prior art keywords
- curved boom
- arc curved
- bridge
- coupling
- pin
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- 230000008878 coupling Effects 0.000 claims abstract description 79
- 238000010168 coupling process Methods 0.000 claims abstract description 79
- 238000005859 coupling reaction Methods 0.000 claims abstract description 79
- 238000004891 communication Methods 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 22
- 238000012360 testing method Methods 0.000 description 7
- 238000002955 isolation Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Electric Cable Installation (AREA)
Abstract
The invention discloses a 3dB bridge, which comprises a first coupling bridge and a second coupling bridge, and is characterized in that the first coupling bridge is arranged above the second coupling bridge; and an insulation support is arranged between the first coupling bridge and the second coupling bridge. The structure is determined ultimately through different simulation and debugging. The structure realizes that an input port and an output port are arranged at the same side, the phase difference of the input end and the output end is 90 degrees, a deviation value does not exceed +/-3 degrees, the phase difference of a path S21 and a path S31 in the working frequency band is less than 3 degrees, and the amplitude balance degree is about 0.02dB. In the frequency band, the return loss of each port is below -30dB, namely, the standing-wave ratio (SWR) is less than 1.1. The 3dB bridge disclosed by the invention has excellent communication electrical performance.
Description
Technical field
The present invention relates to a kind of 3dB electric bridge.
Background technology
At present, 3dB electric bridge is a kind of four port devices, it is the core devices in same frequency combiner, the power of the radiofrequency signal of input can be divided equally the signal of output two equal power in its operating frequency, or the power mixing the signal of two inputs uses as blender, 90 degree of 3dB electric bridge power splitters are one that 3dB electric bridge uses as power divider, and by its design, the phase place of two signals exported are orthogonal 90 degree.The parameter of general 3dB electric bridge has a lot, and topmost is exactly phase difference and the return loss of port.In addition, current 3dB electric bridge and the output of coupler and input port lay respectively at both sides, be easy to like this cause space waste, especially in 450MHz band communication system, 3 dB electric bridge volumes are excessive, therefore develop aly can realize input and output and can be located at homonymy measuring bridge and can be a problem needing solution badly by the electric bridge that phase difference and return loss control in excellent.
Summary of the invention
The object of the invention is to overcome above-described shortcoming, provide a kind of in 450MHz band communication system, input and output port is located at a kind of 3dB electric bridge of homonymy.
For achieving the above object, concrete scheme of the present invention is as follows: a kind of 3dB electric bridge, includes the first coupling bridge and the second coupling bridge; Described first coupling bridge is located at above the second coupling bridge; Described first coupling bridge and second is coupled between bridge and is provided with insulating support.
Wherein, described first coupling bridge includes the first arc curved boom and the second arc curved boom; Described first arc curved boom and the equal semicircular in shape of the second arc curved boom; The radius of described first arc curved boom is greater than the radius of the second arc curved boom; Be provided with the first coupling part between one end of described first arc curved boom and one end of the second arc curved boom, described first arc curved boom and the second arc curved boom are located at same plane; The other end of described first arc curved boom extends the first pin, and the other end of described second arc curved boom is extended with and the first pin the second pin in the same way;
Described second coupling bridge includes the 3rd arc curved boom and the 4th arc curved boom; Described 3rd arc curved boom and the equal semicircular in shape of the 4th arc curved boom; The radius of described 3rd arc curved boom is greater than the radius of the 4th arc curved boom; Be provided with the second coupling part between one end of described 3rd arc curved boom and one end of the 4th arc curved boom, described 3rd arc curved boom and the 4th arc curved boom are located at same plane; The other end of described 3rd arc curved boom extends the 3rd pin, and the other end of described 4th arc curved boom is extended with and the 3rd pin the 4th pin in the same way;
Described first coupling part is arranged to a lateral buckling of the second coupling bridge; Described second coupling part is arranged to a lateral buckling of the first coupling bridge.
Wherein, be coupled with first angle of the first arc curved boom place plane of bridge of described first coupling part is 100-130 degree.
Wherein, be coupled with second angle of the 3rd arc curved boom place plane of bridge of described second coupling part is 100-130 degree.
Wherein, the radial width of described first arc curved boom is 8mm-15mm; The radial width of described second arc curved boom is 8mm-15mm.
Wherein, the radial width of described 3rd arc curved boom is 3mm-8mm; The radial width of described 4th arc curved boom is 3mm-8mm.
Wherein, the radial width of described first arc curved boom is identical with the radial width of described second arc curved boom.
Wherein, the radial width of described 3rd arc curved boom is identical with the radial width of described 4th arc curved boom.
Wherein, the width of described first pin is greater than the width of the second pin, and the width of described 3rd pin is greater than the width of the 4th pin.
Wherein, the end of described first pin and the second pin, the 3rd pin and the 4th pin is equipped with gold-plated portion.
Wherein, the first coupling bridge includes the first spacer bar and the second spacer bar, and the second coupling bridge includes the 3rd spacer bar and the 4th spacer bar;
Wherein, described first coupling bridge and the second coupling bridge are equipped with the 5th spacer bar, and described 5th spacer bar includes two spacer disks, and each spacer disks is provided with pole;
Wherein, described first coupling bridge and the second coupling bridge are equipped with multiple circular hole, in described circular hole, are filled with semiconductor.The side of described first coupling part and the second coupling part is equipped with sawtooth.
Beneficial effect of the present invention is: by different emulation and debugging, finally determine said structure, this structure achieves and input port and output port homonymy is arranged, and the phase difference of its input and output is at 90 degree, partially value be no more than ± 3 degree, the phase difference in working band between S21 and S31 two paths is less than 3 degree, its amplitude balance is about 0.02dB, in frequency range, the return loss of each port is all below-30dB, and namely standing-wave ratio VSWR is less than 1.1; There is excellent communication electric property.
Accompanying drawing explanation
Vertical view when Fig. 1 is 3dB electric bridge of the present invention merging;
Fig. 2 is the vertical view of the first coupling electric bridge of the present invention;
Fig. 3 is the vertical view of the second coupling electric bridge of the present invention;
Sectional view when Fig. 4 is 3dB electric bridge of the present invention merging;
Fig. 5 is the resolution chart of the phase difference when testing in working band between S21 and S31 two paths of the present invention.
Fig. 6 be the present invention in frequency range, the return loss resolution chart of each port;
Description of reference numerals in Fig. 1 to Fig. 6:
1-first is coupled bridge; 11-first arc curved boom; 12-second arc curved boom; 13-first pin; 14-second pin; 15-first spacer bar; 16-second spacer bar; 17-first coupling part;
2-second is coupled bridge; 21-the 3rd arc curved boom; 22-the 4th arc curved boom; 23-the 3rd pin; 24-the 4th pin; 25-the 3rd spacer bar; 26-the 4th spacer bar; 27-second coupling part;
3-circular hole;
4-the 5th spacer bar.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation, is not practical range of the present invention is confined to this.
As shown in Figures 1 to 6, a kind of 3dB electric bridge described in the present embodiment, includes the first coupling bridge 1 and the second coupling bridge 2; Described first coupling bridge 1 is located at above the second coupling bridge 2; Described first coupling bridge 1 is coupled between bridge 2 with second and is provided with insulating support.
A kind of 3dB electric bridge described in the present embodiment, described first coupling bridge 1 includes the first arc curved boom 11 and the second arc curved boom 12; Described first arc curved boom 11 and the second arc curved boom 12 all semicirculars in shape; The radius of described first arc curved boom 11 is greater than the radius of the second arc curved boom 12; Be provided with the first coupling part 17 between one end of described first arc curved boom 11 and one end of the second arc curved boom 12, described first arc curved boom 11 and the second arc curved boom 12 are located at same plane; The other end of described first arc curved boom 11 extends the first pin 13, and the other end of described second arc curved boom 12 is extended with and the first pin 13 the second pin 14 in the same way; Described second coupling bridge 2 includes the 3rd arc curved boom 21 and the 4th arc curved boom 22; Described 3rd arc curved boom 21 and the 4th arc curved boom 22 all semicirculars in shape; The radius of described 3rd arc curved boom 21 is greater than the radius of the 4th arc curved boom 22; Be provided with the second coupling part 27 between one end of described 3rd arc curved boom 21 and one end of the 4th arc curved boom 22, described 3rd arc curved boom 21 and the 4th arc curved boom 22 are located at same plane; The other end of described 3rd arc curved boom 21 extends the 3rd pin 23, and the other end of described 4th arc curved boom 22 is extended with and the 3rd pin 23 the 4th pin 24 in the same way; Described first coupling part 17 is arranged to a lateral buckling of the second coupling bridge 2; Described second coupling part 27 is arranged to a lateral buckling of the first coupling bridge 1.First coupling part 17 and the second coupling part 27 are close respectively at second bridge 2 bridge 1 that to be coupled with first that is coupled, and increasing the degree of coupling, are designed to semicircle loop and effectively reduce space utilization, and can realize homonymy input and output, going out condition for saving space creation.In addition, this kind of design, through many experiments and analog simulation, finally determine the mixer of this planform, by the actual test of final network analyzer, the phase difference of its input and output is at 90 degree, inclined value is no more than ± and 3 degree, as described in Figure 5, the phase difference in working band between S21 and S31 two paths is less than 3 °, and its amplitude balance is about 0.02dB.Return loss, as described in Figure 6.In 450MHz frequency range, the return loss of each port is all below-30dB, and namely standing-wave ratio VSWR is less than 1.1, namely show, the electric bridge of this structure not only achieves input and output homonymy, and has the electric property that communicates preferably, meets the major parameter requirement of 450M frequency.
A kind of 3dB electric bridge described in the present embodiment, be coupled with first angle of the first arc curved boom 11 place plane of bridge 1 of described first coupling part 17 is 100-130 degree; Find in the middle of reality test, during this angular range value, the phase difference of its input and output is highly stable at about 90 degree, and inclined value is no more than ± and 3 degree.
A kind of 3dB electric bridge described in the present embodiment, be coupled with second angle of the 3rd arc curved boom 21 place plane of bridge 2 of described second coupling part 27 is 100-130 degree.Find in the middle of reality test, during this angular range value, the phase difference of its input and output is highly stable at about 90 degree, and inclined value is no more than ± and 3 degree.
A kind of 3dB electric bridge described in the present embodiment, the radial width of described first arc curved boom 11 is 8mm-15mm; The radial width of described second arc curved boom 12 is 8mm-15mm.A kind of 3dB electric bridge described in the present embodiment, the radial width of described 3rd arc curved boom 21 is 3mm-8mm; The radial width of described 4th arc curved boom 22 is 3mm-8mm.Find in the middle of reality test, this width is ensureing under above-mentioned electric property, simplifies most and minimum width value, effectively can save cost.
A kind of 3dB electric bridge described in the present embodiment, the radial width of described first arc curved boom 11 is identical with the radial width of described second arc curved boom 12.Just as radial width mixer can be made more stable.
A kind of 3dB electric bridge described in the present embodiment, the radial width of described 3rd arc curved boom 21 is identical with the radial width of described 4th arc curved boom 22.
A kind of 3dB electric bridge described in the present embodiment, the width of described first pin 13 is greater than the width of the second pin 14, and the width of described 3rd pin 23 is greater than the width of the 4th pin 24.
A kind of 3dB electric bridge described in the present embodiment, the end of described first pin 13 and the second pin 14, the 3rd pin 23 and the 4th pin 24 is equipped with gold-plated portion.Can communication performance be improved, reduce the wastage.
A kind of 3dB electric bridge described in the present embodiment, the first coupling bridge 1 includes the first spacer bar 15 and the second spacer bar 16, second coupling bridge 2 includes the 3rd spacer bar 25 and the 4th spacer bar 26; Four spacer bars are arranged, and can effectively increase isolation of the present invention, and its isolation, in the middle of reality test, reaches below-30dB.
A kind of 3dB electric bridge described in the present embodiment, described first coupling bridge 1 and the second coupling bridge 2 are equipped with the 5th spacer bar 4, and described 5th spacer bar 4 includes two spacer disks, and each spacer disks is provided with pole; Can effectively increase isolation of the present invention, its isolation, in the middle of reality test, reaches below-30dB
A kind of 3dB electric bridge described in the present embodiment, described first coupling bridge 1 and the second coupling bridge 2 is equipped with multiple circular hole 3, is filled with semiconductor in described circular hole 3.Improve the degree of coupling, Loss reducing.The side of described first coupling part 17 and the second coupling part 27 is equipped with sawtooth.Sawtooth effectively can increase isolation.
The thickness of the first coupling bridge 1 and the second coupling bridge 2 is 2mm-3mm.
The above is only a preferred embodiment of the present invention, therefore all equivalences done according to structure, feature and the principle described in patent claim of the present invention change or modify, and are included in the protection range of patent application of the present invention.
Claims (10)
1. a 3dB electric bridge, is characterized in that: include the first coupling bridge and the second coupling bridge; Described first coupling bridge is located at above the second coupling bridge; Described first coupling bridge and second is coupled between bridge and is provided with insulating support.
2. a kind of 3dB electric bridge according to claim 1, is characterized in that: described first coupling bridge includes the first arc curved boom and the second arc curved boom; Described first arc curved boom and the equal semicircular in shape of the second arc curved boom; The radius of described first arc curved boom is greater than the radius of the second arc curved boom; Be provided with the first coupling part between one end of described first arc curved boom and one end of the second arc curved boom, described first arc curved boom and the second arc curved boom are located at same plane; The other end of described first arc curved boom extends the first pin, and the other end of described second arc curved boom is extended with and the first pin the second pin in the same way;
Described second coupling bridge includes the 3rd arc curved boom and the 4th arc curved boom; Described 3rd arc curved boom and the equal semicircular in shape of the 4th arc curved boom; The radius of described 3rd arc curved boom is greater than the radius of the 4th arc curved boom; Be provided with the second coupling part between one end of described 3rd arc curved boom and one end of the 4th arc curved boom, described 3rd arc curved boom and the 4th arc curved boom are located at same plane; The other end of described 3rd arc curved boom extends the 3rd pin, and the other end of described 4th arc curved boom is extended with and the 3rd pin the 4th pin in the same way;
Described first coupling part is arranged to a lateral buckling of the second coupling bridge; Described second coupling part is arranged to a lateral buckling of the first coupling bridge.
3. a kind of 3dB electric bridge according to claim 2, is characterized in that: be coupled with first angle of the first arc curved boom place plane of bridge of described first coupling part is 100-130 degree.
4. a kind of 3dB electric bridge according to claim 2, is characterized in that: be coupled with second angle of the 3rd arc curved boom place plane of bridge of described second coupling part is 100-130 degree.
5. a kind of 3dB electric bridge according to claim 2, is characterized in that: the radial width of described first arc curved boom is 8mm-15mm; The radial width of described second arc curved boom is 8mm-15mm.
6. a kind of 3dB electric bridge according to claim 2, is characterized in that: the radial width of described 3rd arc curved boom is 3mm-8mm; The radial width of described 4th arc curved boom is 3mm-8mm.
7. a kind of 3dB electric bridge according to claim 5, is characterized in that: the radial width of described first arc curved boom is identical with the radial width of described second arc curved boom.
8. a kind of 3dB electric bridge according to claim 6, is characterized in that: the radial width of described 3rd arc curved boom is identical with the radial width of described 4th arc curved boom.
9. a kind of 3dB electric bridge according to claim 2, is characterized in that: the width of described first pin is greater than the width of the second pin, and the width of described 3rd pin is greater than the width of the 4th pin; The end of described first pin and the second pin, the 3rd pin and the 4th pin is equipped with gold-plated portion.
10. a kind of 3dB electric bridge according to claim 2, is characterized in that: the side of described first coupling part and the second coupling part is equipped with sawtooth.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514061.4A CN105024128B (en) | 2015-08-20 | 2015-08-20 | A kind of 3dB electric bridges |
| CN201711024574.2A CN107623162A (en) | 2015-08-20 | 2015-08-20 | A kind of 3dB electric bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514061.4A CN105024128B (en) | 2015-08-20 | 2015-08-20 | A kind of 3dB electric bridges |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711024574.2A Division CN107623162A (en) | 2015-08-20 | 2015-08-20 | A kind of 3dB electric bridges |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105024128A true CN105024128A (en) | 2015-11-04 |
| CN105024128B CN105024128B (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711024574.2A Pending CN107623162A (en) | 2015-08-20 | 2015-08-20 | A kind of 3dB electric bridges |
| CN201510514061.4A Active CN105024128B (en) | 2015-08-20 | 2015-08-20 | A kind of 3dB electric bridges |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711024574.2A Pending CN107623162A (en) | 2015-08-20 | 2015-08-20 | A kind of 3dB electric bridges |
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| Country | Link |
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| CN (2) | CN107623162A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4305043A (en) * | 1980-03-03 | 1981-12-08 | Ford Aerospace & Communications Corporation | Coupler having arbitrary impedance transformation ratio and arbitrary coubling ratio |
| CN201562742U (en) * | 2009-11-03 | 2010-08-25 | 泉州佳信天线有限公司 | High-power broadband 3dB bridge |
| CN103904402A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | Identical-frequency combiner of 3 dB electric bridge with rectangular disengaging levers |
| CN104050833A (en) * | 2014-06-04 | 2014-09-17 | 苏州卫生职业技术学院 | Electronic display device for bus station board |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202259648U (en) * | 2011-10-12 | 2012-05-30 | 上海中科股份有限公司 | Electromagnetic super-structure, packaging structure, and dual-band power divider with electromagnetic super-structure |
| CN202997026U (en) * | 2012-12-21 | 2013-06-12 | 上海联影医疗科技有限公司 | 3db bridge power divider |
| CN203039074U (en) * | 2013-01-09 | 2013-07-03 | 东莞洲亮通讯科技有限公司 | 3dB electric bridge |
| CN203466275U (en) * | 2013-08-21 | 2014-03-05 | 成都玖信科技有限公司 | 3dB electric bridge |
-
2015
- 2015-08-20 CN CN201711024574.2A patent/CN107623162A/en active Pending
- 2015-08-20 CN CN201510514061.4A patent/CN105024128B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4305043A (en) * | 1980-03-03 | 1981-12-08 | Ford Aerospace & Communications Corporation | Coupler having arbitrary impedance transformation ratio and arbitrary coubling ratio |
| CN201562742U (en) * | 2009-11-03 | 2010-08-25 | 泉州佳信天线有限公司 | High-power broadband 3dB bridge |
| CN103904402A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | Identical-frequency combiner of 3 dB electric bridge with rectangular disengaging levers |
| CN104050833A (en) * | 2014-06-04 | 2014-09-17 | 苏州卫生职业技术学院 | Electronic display device for bus station board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105024128B (en) | 2017-11-24 |
| CN107623162A (en) | 2018-01-23 |
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Address after: 523000, Guangdong City, Dongguan province Longwan 2-2 Applicant after: Bao Ling Address before: 246000 Anhui Province, Anqing City Yingjiang District Lake Road No. 362 2 floor Applicant before: Bao Ling |
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Effective date of registration: 20171018 Address after: 362300, Quanzhou, Fujian Province, Nanan City, Xinhua South Road, sunny house, 6, 708 Applicant after: Nanan Xin Xin Brand Operation Co., Ltd. Address before: 523000, Guangdong City, Dongguan province Longwan 2-2 Applicant before: Bao Ling |
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Effective date of registration: 20190329 Address after: 226156 999 Harbour Road, Binhai New Area, Haimen, Nantong, Jiangsu Patentee after: HAIMEN HUANGHAI PIONEER PARK SERVICES CO., LTD. Address before: 362300 Sunshine Youjia Building 708, Ximei Xinhua South Road, Nanan City, Quanzhou City, Fujian Province Patentee before: Nanan Xin Xin Brand Operation Co., Ltd. |