CN105470614B - Same-frequency combiner - Google Patents
Same-frequency combiner Download PDFInfo
- Publication number
- CN105470614B CN105470614B CN201610050622.4A CN201610050622A CN105470614B CN 105470614 B CN105470614 B CN 105470614B CN 201610050622 A CN201610050622 A CN 201610050622A CN 105470614 B CN105470614 B CN 105470614B
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- Prior art keywords
- combining
- arm
- disk
- sub
- piece
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
Abstract
The invention discloses a same-frequency combiner. The same-frequency combiner comprises a first combiner disc and a second combiner disc for coupling with the first combiner disc. Through a good structural design, better electrical performance is realized, the practicability is greatly increased, and the same-frequency combiner is simple in structure, unlikely to damage and long in service life.
Description
Technical field
The present invention relates to a kind of same frequency combiner.
Background technology
In same frequency combiner, main component is exactly 3dB electric bridge, and 3dB electric bridge is a kind of to carry out being coupled into the electrical part of a road signal output by two kinds of frequency identical signals；It requires the degree of coupling high, accurately, frequency range width, it is widely used in the communications industry, 3dB in the market is to reach wideband purpose, using different coupling line forms, the return loss causing each port is poor, the low problem of other electric properties.
Content of the invention
It is an object of the invention to overcoming disadvantages described above, provide a kind of same frequency combiner.
For achieving the above object, the concrete scheme of the present invention is as follows：A kind of same frequency combiner, includes aluminium alloy shield shell, and the 3dB electric bridge in shield shell, and described 3dB electric bridge includes the first combining disk and the second combining disk for being coupled with the first combining disk；
Described first combining disk includes annular arm, also includes the sub- combining piece of six settings triangular in shape being provided with along annular arm, and an angle of every sub- combining piece is towards the center of circle of annular arm；Often the distance between adjacent two sub- combining pieces all same；Each described sub- combining piece is provided with a banding dead slot near the side at annular arm center；The sub- combining piece of surface has extended upward first input end, and the sub- combining piece of underface has extended downwardly the first output end；
Described second combining disk includes disk arm, and the edge of described disk arm extends outward multiple ribbon arm matching respectively with banding dead slot, and the free end of ribbon arm is provided with one section of arc coupling arm；The left and right sides of described disk arm is all extended connecting rod, and the free end of left-side connecting bar is provided with the second input, and the free end of right-side connecting bar is provided with the second output end；
The radius of described disk arm is more than the minimum range of sub- combining piece and the center of circle of annular arm；Described connecting rod is provided with the first via, and described annular arm is provided with second via corresponding with the first via；Described 3dB electric bridge also includes the card column that the first combining disk is be arranged in parallel with the second combining disk, and described card column is arranged in the first via and the second via.
Wherein, the two ends of described banding dead slot are arc.
Wherein, a diameter of 8cm-10cm of described annular arm.
Wherein, a diameter of 5cm-7cm of described disk arm.
Wherein, described sub- combining piece is equilateral triangle, and the length of side of described sub- combining piece is L, a diameter of N of described disk arm, described L=N*0.759.
Wherein, the center of described disk arm is additionally provided with a circular hole；
Wherein, described disk arm is additionally provided with two T-slots being centrosymmetric；
Beneficial effects of the present invention are：By excellent structure design it is achieved that preferable electric property, its practicality greatly increases, and its structure is simple, is difficult bad, long service life.
Brief description
Fig. 1 is the top view of the present invention；
Fig. 2 is the top view of the first combining disk of the present invention；
Fig. 3 is the top view of the second combining disk of the present invention；
Fig. 4 is the top view of the 3dB electric bridge of the present invention；
Fig. 5 is the sectional view of the 3dB electric bridge of the present invention；
Fig. 6 is the test chart of the phase difference in the working band in test of the present invention between two paths of S21 and S31.
Fig. 7 be the present invention in frequency range, the return loss test chart of each port；
Description of reference numerals in Fig. 1 to Fig. 7：
1- the first combining disk；11- annular arm；12- combining piece；13- banding dead slot；14- second via；15- first input end；16- first output end；
2- the second combining disk；21- disk arm；22- ribbon arm；23- arc coupling arm；24- connecting rod；25- first via；26- second input；27- second output end；28-T shape groove；29- circular hole；
3- card column；4- shield shell.
Specific embodiment
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, is not that the practical range of the present invention is confined to this.
As shown in Figures 1 to 7, a kind of same frequency combiner described in the present embodiment, include aluminium alloy shield shell 4, and the 3dB electric bridge in shield shell, described 3dB electric bridge includes the first combining disk 1 and the second combining disk 2 for being coupled with the first combining disk 1；Described first combining disk 1 includes annular arm 11, also includes the sub- combining piece 12 of six settings triangular in shape being provided with along annular arm 11, and an angle of every sub- combining piece 12 is towards the center of circle of annular arm 11；Often the distance between adjacent two sub- combining pieces 12 all same；Each described sub- combining piece 12 is provided with a banding dead slot 13 near the side at annular arm 11 center；The sub- combining piece 12 of surface has extended upward first input end 15, and the sub- combining piece 12 of underface has extended downwardly the first output end 16；Described second combining disk 2 includes disk arm 21, and the edge of described disk arm 21 extends outward multiple ribbon arm 22 matching respectively with banding dead slot 13, and the free end of ribbon arm 22 is provided with one section of arc coupling arm 23；The left and right sides of described disk arm 21 is all extended connecting rod 24, and the free end of left-side connecting bar 24 is provided with the second input 26, and the free end of right-side connecting bar 24 is provided with the second output end 27；The radius of described disk arm 21 is more than the minimum range of sub- combining piece 12 and the center of circle of annular arm 11；Described connecting rod 24 is provided with the first via 25, and described annular arm 11 is provided with and corresponding second via 14 of the first via 25；Described 3dB electric bridge also includes the card column 3 that the first combining disk 1 is be arranged in parallel with the second combining disk 2, described card column 3 is arranged in the first via 25 and the second via 14, test and analog simulation through more than 500 times, finally determine this planform, actual test by final Network Analyzer, the phase difference of its input and output end is at 90 degree, value is less than ± 3 degree partially, as described in Figure 6, in working band, the phase difference between two paths of S21 and S31 is less than 3 °, and its amplitude balance is about 0.02dB.Return loss, as described in Figure 7.In 450MHz frequency range, all below -30dB, that is, standing-wave ratio VSWR is less than 1.1 to the return loss of each port, namely show, the electric bridge of this structure not only achieves the scheme of small size, and has preferable communication electric property, and the major parameter meeting 450M frequency requires.
A kind of same frequency combiner described in the present embodiment, the two ends of described banding dead slot 13 are arc.This structure is the optimal values and quantity finding in actual test, and this numerical value and quantity are all obviously improved to properties.
A kind of same frequency combiner described in the present embodiment, a diameter of 8cm-10cm of described annular arm 11.A kind of same frequency combiner described in the present embodiment, a diameter of 5cm-7cm of described disk arm 21.Find in the middle of actual test, during this angular range value, its input of this electric bridge is at 90 degree about and highly stable with the phase difference of output end, value is less than ± 3 degree partially.
A kind of same frequency combiner described in the present embodiment, the center of described disk arm 21 is additionally provided with a circular hole 29；Isolation of the present utility model can be effectively increased, its isolation, in the middle of actual test, reaches below -30dB.
A kind of same frequency combiner described in the present embodiment, described disk arm 21 is additionally provided with two T-slots being centrosymmetric 28；It can improve the degree of coupling further, reduces loss.
A kind of same frequency combiner described in the present embodiment, described sub- combining piece 12 is equilateral triangle, and the length of side of described sub- combining piece 12 is L, a diameter of N of described disk arm 21, described L=N*0.759.When parameter setting becomes this data, its effect is more excellent, and the degree of coupling is higher, reduces loss clearly.
The above is only a preferred embodiment of the present invention, therefore the equivalence changes done of the construction described in all scopes according to present patent application, feature and principle or modification, it is included in the protection domain of present patent application.
Claims (4)
1. a kind of same frequency combiner it is characterised in that：Include aluminium alloy shield shell（4）, and the 3dB electric bridge in shield shell, described 3dB electric bridge includes the first combining disk（1）With for and the first combining disk（1）The the second combining disk being coupled（2）；Described second combining disk（2）Include disk arm（21）；
Described first combining disk（1）Include annular arm（11）；
Described first combining disk（1）Also include along annular arm（11）The sub- combining piece of six settings triangular in shape being provided with（12）, every sub- combining piece（12）An angle towards annular arm（11）The center of circle；Often adjacent two sub- combining pieces（12）The distance between all same；Each described sub- combining piece（12）Near annular arm（11）The side at center is provided with a banding dead slot（13）；The sub- combining piece of surface（12）Extend upward first input end（15）, the sub- combining piece of underface（12）Extend downwardly the first output end（16）；
Described disk arm（21）Edge extended outward multiple respectively with banding dead slot（13）The ribbon arm matching（22）, ribbon arm（22）Free end be provided with one section of arc coupling arm（23）；Described disk arm（21）The left and right sides all extend and have connecting rod（24）, left-side connecting bar（24）Free end be provided with the second input（26）, right-side connecting bar（24）Free end be provided with the second output end（27）；
Described disk arm（21）Radius be more than sub- combining piece（12）With annular arm（11）The center of circle minimum range；Described connecting rod（24）It is provided with the first via（25）, described annular arm（11）It is provided with and the first via（25）Corresponding second via（14）；
Described 3dB electric bridge also includes the first combining disk（1）With the second combining disk（2）The card column be arrangeding in parallel（3）, described card column（3）It is arranged in the first via（25）With the second via（14）.
2. a kind of same frequency combiner according to claim 1 it is characterised in that：Described banding dead slot（13）Two ends be arc.
3. a kind of same frequency combiner according to claim 1 it is characterised in that：Described annular arm（11）A diameter of 8cm-10cm；Described disk arm（21）A diameter of 5cm-7cm.
4. a kind of same frequency combiner according to claim 1 it is characterised in that：Described sub- combining piece（12）For equilateral triangle, described sub- combining piece（12）The length of side be L, described disk arm（21）A diameter of N, described L=N*0.759.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050622.4A CN105470614B (en) | 2016-01-26 | 2016-01-26 | Same-frequency combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050622.4A CN105470614B (en) | 2016-01-26 | 2016-01-26 | Same-frequency combiner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105470614A CN105470614A (en) | 2016-04-06 |
| CN105470614B true CN105470614B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610050622.4A Active CN105470614B (en) | 2016-01-26 | 2016-01-26 | Same-frequency combiner |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196031B (en) * | 2017-05-25 | 2019-08-23 | 林驰杰 | A kind of same frequency combiner |
| WO2018214545A1 (en) * | 2017-05-25 | 2018-11-29 | 周丹 | Co-frequency combiner provided with second slot |
| WO2018214544A1 (en) * | 2017-05-25 | 2018-11-29 | 周丹 | 3db bridge provided with second slot |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009021824A (en) * | 2007-07-12 | 2009-01-29 | Mitsubishi Electric Corp | Directional coupler |
| CN101728622A (en) * | 2010-01-07 | 2010-06-09 | 东莞市苏普尔电子科技有限公司 | Method for preparing broadband ring electric bridge and electric bridge prepared by implementing method |
| CN102044734A (en) * | 2010-10-18 | 2011-05-04 | 杭州紫光网络技术有限公司 | Identical system circuit combiner with high-isolation degree |
| CN103904401A (en) * | 2014-04-08 | 2014-07-02 | 钟小茹 | Same-frequency combiner of 3dB electrical bridge with trapezoid separation rod |
-
2016
- 2016-01-26 CN CN201610050622.4A patent/CN105470614B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009021824A (en) * | 2007-07-12 | 2009-01-29 | Mitsubishi Electric Corp | Directional coupler |
| CN101728622A (en) * | 2010-01-07 | 2010-06-09 | 东莞市苏普尔电子科技有限公司 | Method for preparing broadband ring electric bridge and electric bridge prepared by implementing method |
| CN102044734A (en) * | 2010-10-18 | 2011-05-04 | 杭州紫光网络技术有限公司 | Identical system circuit combiner with high-isolation degree |
| CN103904401A (en) * | 2014-04-08 | 2014-07-02 | 钟小茹 | Same-frequency combiner of 3dB electrical bridge with trapezoid separation rod |
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| CN105470614A (en) | 2016-04-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Zhiyong Inventor after: Zhou Jian Inventor after: Zhuang Liming Inventor after: Luo Xuan Inventor before: Kuang Jiahao |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170113 Address after: 1954 Huashan Road, Shanghai, No. 200000 Applicant after: Shanghai Jiaotong Univ. Applicant after: State Grid Shanghai Municipal Electric Power Company Address before: 523000 Guangdong Province, Dongguan Songshan Lake Qinyuan road in Dongguan City Park Dr. Applicant before: Kuang Jiahao |
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| C14 | Grant of patent or utility model | ||
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