CN105024127B - 3dB electric bridges - Google Patents
3dB electric bridges Download PDFInfo
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- CN105024127B CN105024127B CN201510514050.6A CN201510514050A CN105024127B CN 105024127 B CN105024127 B CN 105024127B CN 201510514050 A CN201510514050 A CN 201510514050A CN 105024127 B CN105024127 B CN 105024127B
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- curved boom
- arc curved
- bridge
- pin
- coupling
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- 230000008878 coupling Effects 0.000 claims abstract description 78
- 238000010168 coupling process Methods 0.000 claims abstract description 78
- 238000005859 coupling reaction Methods 0.000 claims abstract description 78
- 125000006850 spacer group Chemical group 0.000 claims description 23
- 238000002955 isolation Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a kind of 3dB electric bridges, include the first coupling bridge and the second coupling bridge；The first coupling bridge is above the second coupling bridge；The first coupling bridge is provided with insulating support between bridge is coupled with second；Pass through different emulation and debugging, it is final to determine said structure, the structure, which is realized, sets input port and output port homonymy, and its input and the phase difference of output end, at 90 degree, bias is no more than ± 3 degree, and the phase difference in working band between two paths of S21 and S31 is less than 3 degree, its amplitude balance is about 0.02dB, in frequency range, the return loss of each port is all less than 1.1 in below 30dB, i.e. standing-wave ratio VSWR；With excellent communication electric property.
Description
Technical field
The present invention relates to a kind of 3dB electric bridges.
Background technology
At present, 3dB electric bridges are a kind of four port devices, are the core devices in same frequency combiner, can be in its work frequency
The power of the radiofrequency signal of input is divided equally to the signal of two equal powers of output in rate, or mix the signal of two inputs
Power is used as blender, and 90 degree of 3dB electric bridge power splitters are one kind that 3dB electric bridges are used as power divider, and are passed through
It is designed, and the phase of two signals of output is orthogonal 90 degree.The parameter of general 3dB electric bridges has a lot, topmost to be exactly
The phase difference and return loss of port.In addition, current 3dB electric bridges and the output of coupler and input port are located at two respectively
Side, it is excessive so to easily cause 3 dB electric bridge volumes in space waste, especially 450MHz band communications system, therefore develops
A energy realizes input and output can be located at homonymy measuring bridge and can control phase difference and return loss in excellent
The problem of interior electric bridge is a urgent need to resolve.
The content of the invention
It is an object of the invention to overcome disadvantages described above to be used for there is provided one kind in 450MHz band communication systems,
Input and output port is located at a kind of 3dB electric bridges of homonymy.
To achieve the above object, concrete scheme of the invention is as follows：A kind of 3dB electric bridges, include the first coupling bridge and
Two coupling bridges；The first coupling bridge is above the second coupling bridge；The first coupling bridge is provided between bridge is coupled with second
Insulating support.
Wherein, the first coupling bridge includes the first arc curved boom and the second arc curved boom；First curved bend
Arm and the second equal semicircular in shape of arc curved boom；The radius of the first arc curved boom is more than the radius of the second arc curved boom；It is described
The first coupling part, the first arc curved boom and the are provided between one end of first arc curved boom and one end of the second arc curved boom
Two arc curved booms are located at same plane；The other end of the first arc curved boom, which extends, the first pin, second arc
The other end of curved boom is extended with the second pin in the same direction with the first pin；
The second coupling bridge includes the 3rd arc curved boom and the 4th arc curved boom；The 3rd arc curved boom and
The four equal semicirculars in shape of arc curved boom；The radius of the 3rd arc curved boom is more than the radius of the 4th arc curved boom；3rd arc
The second coupling part, the 3rd arc curved boom and the 4th arc are provided between one end of shape curved boom and one end of the 4th arc curved boom
Curved boom is located at same plane；The other end of the 3rd arc curved boom, which extends, the 3rd pin, the 4th arc curved boom
The other end is extended with fourth pin in the same direction with the 3rd pin；
The side of first coupling part to the second coupling bridge, which is bent, to be set；Second coupling part couples bridge to first
Side bending is set.
Wherein, the angle of plane is 100-130 where first coupling part couples the first arc curved boom of bridge with first
Degree.
Wherein, the angle of plane is 100-130 where second coupling part couples the 3rd arc curved boom of bridge with second
Degree.
Wherein, the radial width of the first arc curved boom is 8mm-15mm；The radial width of the second arc curved boom
For 8mm-15mm.
Wherein, the radial width of the 3rd arc curved boom is 3mm-8mm；The radial width of the 4th arc curved boom is
3mm-8mm。
Wherein, the radial width of the first arc curved boom is identical with the radial width of the second arc curved boom.
Wherein, the radial width of the 3rd arc curved boom is identical with the radial width of the 4th arc curved boom.
Wherein, the width of first pin is more than the width of second pin, and the width of the 3rd pin is more than the 4th
The width of pin.
Wherein, first pin and the end of second pin, the 3rd pin and the 4th pin are 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 isolation
Bar and the 4th spacer bar；
Wherein, the 5th spacer bar is equipped with the first coupling bridge and the second coupling bridge, the 5th spacer bar includes
There are two spacer disks, each spacer disks are provided with pole；
Wherein, multiple circular holes are equipped with the first coupling bridge and the second coupling bridge, interior be filled with of the circular hole is partly led
Body.The side of first coupling part and the second coupling part is equipped with sawtooth.
Beneficial effects of the present invention are:By different emulation and debugging, said structure is finally determined, the structure is realized
Input port and output port homonymy are set, and its input and the phase difference of output end, at 90 degree, bias is no more than ± 3
Phase difference in degree, working band between two paths of S21 and S31 is less than 3 degree, and its amplitude balance is about 0.02dB, frequency range
Interior, the return loss of each port is all below -30dB, i.e. standing-wave ratio VSWR is less than 1.1；With excellent communication electric property.
Brief description of the drawings
Top view when Fig. 1 is the 3dB electric bridges merging of the present invention；
Fig. 2 is the top view of the first coupling electric bridge of the present invention；
Fig. 3 is the top view of the second coupling electric bridge of the present invention；
Sectional view when Fig. 4 is the 3dB electric bridges merging of the present invention；
Fig. 5 is the test chart of the phase difference in test in working band between two paths of S21 and S31 of the present invention.
Fig. 6 is of the invention in frequency range, the return loss test chart of each port；
Description of reference numerals of the Fig. 1 into Fig. 6：
1- first couples bridge；11- the first arc curved booms；12- the second arc curved booms；The pins of 13- first；14- second pins；
The spacer bars of 15- first；The spacer bars of 16- second；The coupling parts of 17- first；
2- second couples bridge；The arc curved booms of 21- the 3rd；The arc curved booms of 22- the 4th；The pins of 23- the 3rd；The pins of 24- the 4th；
The spacer bars of 25- the 3rd；The spacer bars of 26- the 4th；The coupling parts of 27- second；
3- circular holes；
The spacer bars of 4- the 5th.
Embodiment
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, is not the reality the present invention
Apply scope and be confined to this.
As shown in Figures 1 to 6, a kind of 3dB electric bridges described in the present embodiment, include the first coupling bridge 1 and the second coupling
Bridge 2；The first coupling bridge 1 is located at the top of the second coupling bridge 2；The first coupling bridge 1 is provided with exhausted between bridge 2 is coupled with second
Edge support.
A kind of 3dB electric bridges described in the present embodiment, the first coupling bridge 1 includes the first arc curved boom 11 and second
Arc curved boom 12；The equal semicircular in shape of the first arc curved boom 11 and the second arc curved boom 12；The first arc curved boom 11
Radius is more than the radius of the second arc curved boom 12；One end of the first arc curved boom 11 and one end of the second arc curved boom 12 it
Between be provided with the first coupling part 17, the first arc curved boom 11 and the second arc curved boom 12 are located at same plane；First arc
The other end of shape curved boom 11, which extends, the first pin 13, and the other end of the second arc curved boom 12 is extended with and the first pin
13 second pins 14 in the same direction；The second coupling bridge 2 includes the 3rd arc curved boom 21 and the 4th arc curved boom 22；It is described
3rd arc curved boom 21 and the equal semicircular in shape of the 4th arc curved boom 22；The radius of the 3rd arc curved boom 21 is more than the 4th arc
The radius of curved boom 22；The second coupling part is provided between one end of the 3rd arc curved boom 21 and one end of the 4th arc curved boom 22
27, the 3rd arc curved boom 21 and the 4th arc curved boom 22 are located at same plane；The other end of the 3rd arc curved boom 21
Extending has the 3rd pin 23, and the other end of the 4th arc curved boom 22 is extended with and the 4th pin in the same direction of the 3rd pin 23
24；The side of first coupling part 17 to the second coupling bridge 2, which is bent, to be set；Second coupling part 27 couples bridge 1 to first
Side bending set.First coupling part 17 and the second coupling part 27 couple bridge 2 respectively at second to couple bridge 1 with first close,
Increase the degree of coupling, be designed to that space utilization is effectively reduced in semicircle loop, and homonymy input and output can be realized, to save space creation
Go out condition.In addition, such a design, by many experiments and analog simulation, finally determines the combiner of the planform, by most
The phase difference of the actual test of whole Network Analyzer, its input and output end is at 90 degree, and bias is no more than ± 3 degree, such as Fig. 5 institutes
State, the phase difference in working band between two paths of S21 and S31 is less than 3 °, and its amplitude balance is about 0.02dB.Echo is damaged
Consumption, as described in Figure 6.In 450MHz frequency ranges, the return loss of each port is all below -30dB, i.e. standing-wave ratio VSWR is less than
1.1, that is, showing, the electric bridge of the structure not only realizes input and output homonymy, and with preferably communication electrical resistance
Can, meet the major parameter requirement of 450M frequencies.
A kind of 3dB electric bridges described in the present embodiment, first coupling part 17 couples the first arc curved boom of bridge 1 with first
The angle of 11 place planes is 100-130 degree；Found among actual test, during the angular range value, its input and output
The phase difference at end is at 90 degree or so and highly stable, and bias is no more than ± 3 degree.
A kind of 3dB electric bridges described in the present embodiment, second coupling part 27 couples the 3rd arc curved boom of bridge 2 with second
The angle of 21 place planes is 100-130 degree.Found among actual test, during the angular range value, its input and output
The phase difference at end is at 90 degree or so and highly stable, and bias is no more than ± 3 degree.
A kind of 3dB electric bridges described in the present embodiment, the radial width of the first arc curved boom 11 is 8mm-15mm；It is described
The radial width of second arc curved boom 12 is 8mm-15mm.A kind of 3dB electric bridges described in the present embodiment, the 3rd arc curved boom
21 radial width is 3mm-8mm；The radial width of the 4th arc curved boom 22 is 3mm-8mm.Sent out among actual test
Existing, the width is to ensure to complete under above-mentioned electric property, and most simplified and minimum width value can effectively save cost.
A kind of 3dB electric bridges described in the present embodiment, radial width and second arc of the first arc curved boom 11
The radial width of curved boom 12 is identical.Just as radial width can cause combiner more stablize.
A kind of 3dB electric bridges described in the present embodiment, radial width and the 4th arc of the 3rd arc curved boom 21
The radial width of curved boom 22 is identical.
A kind of 3dB electric bridges described in the present embodiment, the width of first pin 13 is more than the width of second pin 14, institute
The width for stating the 3rd pin 23 is more than the width of the 4th pin 24.
A kind of 3dB electric bridges described in the present embodiment, first pin 13 and second pin 14, the 3rd pin 23 and the 4th
The end of pin 24 is equipped with gold-plated portion.Communication performance, reduction loss can be improved.
A kind of 3dB electric bridges described in the present embodiment, the first coupling bridge 1 includes the first spacer bar 15 and the second spacer bar
16, the second coupling bridge 2 includes the 3rd spacer bar 25 and the 4th spacer bar 26；Four spacer bars are set, and can be effectively increased this reality
With new isolation, its isolation is reached below -30dB among actual test.
A kind of 3dB electric bridges described in the present embodiment, it is described first coupling bridge 1 and second coupling bridge 2 on be equipped with the 5th every
From bar 4, the 5th spacer bar 4 includes two spacer disks, and each spacer disks are provided with pole；This reality can be effectively increased
With new isolation, its isolation is reached below -30dB among actual test
Multiple circles are equipped with a kind of 3dB electric bridges described in the present embodiment, the first coupling bridge 1 and second coupling bridge 2
Semiconductor is filled with hole 3, the circular hole 3.The degree of coupling is improved, loss is reduced.The coupling part of first coupling part 17 and second
27 side is equipped with sawtooth.Sawtooth can be effectively increased isolation.
The thickness of the first coupling coupling bridge 2 of bridge 1 and second is 2mm-3mm.
Described above is only a preferred embodiment of the present utility model, therefore all according to the utility model patent claim institute
The equivalent change or modification that construction, feature and the principle stated are done, in the protection domain of the utility model patent application.
Claims (7)
1. a kind of 3dB electric bridges, it is characterised in that：Include the first coupling bridge and the second coupling bridge；The first coupling bridge is located at
Above second coupling bridge；The first coupling bridge is provided with insulating support between bridge is coupled with second；
The 5th spacer bar is equipped with the first coupling bridge and the second coupling bridge, the 5th spacer bar includes two isolation
Disk, each spacer disks are provided with pole；The first coupling bridge includes the first arc curved boom and the second arc curved boom；
The first arc curved boom and the second equal semicircular in shape of arc curved boom；The radius of the first arc curved boom is more than the second curved bend
The radius of arm；The first coupling part, described the are provided between one end of the first arc curved boom and one end of the second arc curved boom
One arc curved boom and the second arc curved boom are located at same plane；The other end of the first arc curved boom, which extends, has first to draw
Pin, the other end of the second arc curved boom is extended with the second pin in the same direction with the first pin；
The second coupling bridge includes the 3rd arc curved boom and the 4th arc curved boom；The 3rd arc curved boom and the 4th arc
The equal semicircular in shape of shape curved boom；The radius of the 3rd arc curved boom is more than the radius of the 4th arc curved boom；3rd curved bend
The second coupling part, the 3rd arc curved boom and the 4th arc curved boom are provided between one end of arm and one end of the 4th arc curved boom
Located at same plane；The other end of the 3rd arc curved boom, which extends, the 3rd pin, the 4th arc curved boom it is another
End is extended with fourth pin in the same direction with the 3rd pin；
The side of first coupling part to the second coupling bridge, which is bent, to be set；Second coupling part to first coupling bridge side
Bending is set；The angle of plane is 100-130 degree where first coupling part couples the first arc curved boom of bridge with first；Institute
The angle for stating plane where the second coupling part couples the 3rd arc curved boom of bridge with second is 100-130 degree.
2. a kind of 3dB electric bridges according to claim 1, it is characterised in that：The radial width of the first arc curved boom is
8mm-15mm；The radial width of the second arc curved boom is 8mm-15mm.
3. a kind of 3dB electric bridges according to claim 1, it is characterised in that：The radial width of the 3rd arc curved boom is
3mm-8mm；The radial width of the 4th arc curved boom is 3mm-8mm.
4. a kind of 3dB electric bridges according to claim 2, it is characterised in that：The radial width of the first arc curved boom with
The radial width of the second arc curved boom is identical.
5. a kind of 3dB electric bridges according to claim 3, it is characterised in that：The radial width of the 3rd arc curved boom with
The radial width of the 4th arc curved boom is identical.
6. a kind of 3dB electric bridges according to claim 1, it is characterised in that：The width of first pin draws more than second
The width of pin, the width of the 3rd pin is more than the width of the 4th pin；First pin and second pin, the 3rd pin
Gold-plated portion is equipped with the end of the 4th pin.
7. a kind of 3dB electric bridges according to claim 1, it is characterised in that：First coupling part and the second coupling part
Side is equipped with sawtooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514050.6A CN105024127B (en) | 2015-08-20 | 2015-08-20 | 3dB electric bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514050.6A CN105024127B (en) | 2015-08-20 | 2015-08-20 | 3dB electric bridges |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105024127A CN105024127A (en) | 2015-11-04 |
| CN105024127B true CN105024127B (en) | 2017-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510514050.6A Expired - Fee Related CN105024127B (en) | 2015-08-20 | 2015-08-20 | 3dB electric bridges |
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| Country | Link |
|---|---|
| CN (1) | CN105024127B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904402A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | Identical-frequency combiner of 3 dB electric bridge with rectangular disengaging levers |
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2015
- 2015-08-20 CN CN201510514050.6A patent/CN105024127B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904402A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | Identical-frequency combiner of 3 dB electric bridge with rectangular disengaging levers |
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| Publication number | Publication date |
|---|---|
| CN105024127A (en) | 2015-11-04 |
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| CB02 | Change of applicant information |
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: 20170719 Address after: 510640 Guangdong City, Tianhe District Province, No. five, road, public education building, unit 371-1, unit 2401 Applicant after: Guangdong Gaohang Intellectual Property Operation Co., Ltd. Address before: 523000, Guangdong City, Dongguan province Longwan 2-2 Applicant before: Bao Ling |
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| TA01 | Transfer of patent application right | ||
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Inventor after: Wu Zhengxing Inventor before: Bao Ling |
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Effective date of registration: 20170725 Address after: 448000 Hubei city of Jingmen province high tech Zone, Fuyao Duodao District Road No. 39 two Applicant after: HUBEI AITU SCIENCE & TECHNOLOGY CO., LTD. Address before: 510640 Guangdong City, Tianhe District Province, No. five, road, public education building, unit 371-1, unit 2401 Applicant before: Guangdong Gaohang Intellectual Property Operation Co., Ltd. |
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