CN105186087A - Crescent 3dB electrical bridge - Google Patents
Crescent 3dB electrical bridge Download PDFInfo
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- CN105186087A CN105186087A CN201510514078.XA CN201510514078A CN105186087A CN 105186087 A CN105186087 A CN 105186087A CN 201510514078 A CN201510514078 A CN 201510514078A CN 105186087 A CN105186087 A CN 105186087A
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- curved boom
- arc curved
- bridge
- coupling
- pin
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Abstract
The invention discloses a crescent 3dB electrical bridge. The crescent 3dB electrical bridge comprises a first coupling bridge and a second coupling bridge, wherein the first coupling bridge is arranged above the second coupling bridge; an insulation support is arranged between the first coupling bridge and the second coupling bridge; through different simulation and debugging, the structure can be determined finally. The structure realizes that the input port and the output port are arranged at the same side; the phase difference between the input port and the output port is 90DEG, and the bias between the input port and the output port is equal to or less than +-3DEG; within the working band, the phase difference between two channels, S21 and S31 is less than 3DEG and the amplitude balance degree is about 0.02dB; and within the frequency range, the return loss of each port is less than -30dB, that is, the standing-wave ratio VSWR is less than 1.1. The crescent 3dB electrical bridge has good communication and electrical performance.
Description
Technical field
The present invention relates to a kind of crescent 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, 3dB electric bridge volume is excessive, therefore develops 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 crescent 3dB electric bridge of homonymy.
For achieving the above object, concrete scheme of the present invention is as follows: a kind of crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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;
Described first coupling bridge and the second coupling bridge are equipped with multiple circular hole, in described circular hole, are filled with semiconductor.
2. a kind of crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 crescent 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514078.XA CN105186087A (en) | 2015-08-20 | 2015-08-20 | Crescent 3dB electrical bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514078.XA CN105186087A (en) | 2015-08-20 | 2015-08-20 | Crescent 3dB electrical bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105186087A true CN105186087A (en) | 2015-12-23 |
Family
ID=54908030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510514078.XA Withdrawn CN105186087A (en) | 2015-08-20 | 2015-08-20 | Crescent 3dB electrical bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105186087A (en) |
-
2015
- 2015-08-20 CN CN201510514078.XA patent/CN105186087A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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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| COR | Change of bibliographic data | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151223 |