CN101783432B - Distribution/synthesizer - Google Patents
Distribution/synthesizer Download PDFInfo
- Publication number
- CN101783432B CN101783432B CN201010002192.1A CN201010002192A CN101783432B CN 101783432 B CN101783432 B CN 101783432B CN 201010002192 A CN201010002192 A CN 201010002192A CN 101783432 B CN101783432 B CN 101783432B
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- CN
- China
- Prior art keywords
- transmission lines
- oralia
- port
- port plate
- distributor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 48
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims description 11
- 238000002955 isolation Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 241000669618 Nothes Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Details Of Television Systems (AREA)
Abstract
The invention provides a kind of all channels corresponding to UHF band, improved the characteristic of return loss and the characteristic of isolation synthetic/distributor. Synthetic/distributor has the transmission lines (11,12) that forms coupling circuit. In addition, there is respectively each port plate at the two ends of transmission lines (11,12). Distolateral two port plate that are close in transmission lines (11,12) become the roughly angle of 90 °. In addition, become the roughly angle of 90 ° in another distolateral two port plate that are close of transmission lines (11,12). Thus, between two port plate that are close, prevent unwanted electromagnetic coupled, can improve the characteristic of return loss and the characteristic of isolation of synthetic/distributor.
Description
Technical field
The present invention relates to use in the dispatching station of broadcast singal that for example sends received terrestrial digital broadcasting etc.Synthesize/the distributor of broadcast singal.
Background technology
Numeral transmitter uses distributor corresponding to UHF (UltraHigh with synthesizer or digital transmitterFrequency: hyperfrequency) all channels (470MHz～860MHz) of frequency band, require higher resistance toElectrically. In addition,, low cost small-sized in order to realize, do not used the situation of isolator more. So,Proposed to use the method for the three-dB coupler that is also used as isolator in the past.
In the time forming three-dB coupler, general distributor forms as shown in Figure 4. Use strip lineThe join near-earth configuration of the transmission lines 31,32 on road. Be provided with at the two ends of transmission lines 31 port plate 31a,31b, the two ends of this external transmission lines 32 are provided with port plate 32a, 32b. Transmission lines 31,32And port plate 31a, 31b, 32a, 32b are housed in housing 200.
Port plate 31a, 31b be bending suitable angle in the plane identical with transmission lines 31, andAnd port plate 32a, 32b be bending suitable angle in the plane identical with transmission lines 32, portPlate 31a, 31b, 32a, 32b are connected to each connector (not shown) being located on housing 200.Here, the external connection terminals of the connector being connected with port plate 31a, 31b, 32a and 32b is dividedBe not made as port 31A, 31B, 32A, 32B.
Distributor is for example transfused to signal at port 31A, is divided from port 31B and port 32A outputThe signal of joining. In addition, port 32B is terminated. Such distributor as the characteristic representing in Fig. 5 thatSample, be difficult to by return loss and isolation suppress for-below 20dB. In figure, the degree of coupling 1 represents endThe degree of coupling between mouth 31A-port 31B, the degree of coupling 2 represents the coupling between port 31A-port 32ARight. In addition, return loss represents the return loss of port 31A. In addition, isolation represents portIsolation between 31B-port 32A.
In addition, Japanese kokai publication hei 7-226609 communique discloses the existing skill being associated with mentioned kindThe directional coupler of art. Directionality coupler arranges in the each port plate being made up of microstriplineThe otch of use is integrated in impedance, even use and also can guarantee well directionality and isolation in high frequency bandDegree characteristic. But, the return loss of Japanese kokai publication hei 7-226609 communique and directional coupler andThe adjusting of isolation is irrelevant.
In the past synthetic/distributor is poor in return loss and isolation aspect characteristic.
Summary of the invention
The object of this invention is to provide a kind of all channels corresponding to UHF band, improved return lossCharacteristic and the characteristic of isolation synthetic/distributor.
In order to achieve the above object, about synthesize/distributor of the present invention has: the first transmission lines;First end oralia, is connected on one end of the first transmission lines; The second port plate, is connected to the first biographyOn the other end on line sending road; The second transmission lines, with above-mentioned the first transmission lines coupling; The 3rd portPlate, is connected on one end of the second transmission lines approaching with one end of the first transmission lines; And theFour port plate, are connected on the other end of the second transmission lines; It is characterized in that first end oralia phasePlane bending for the first transmission lines meets at right angles, and the 4th port plate is with respect to the second conveyer lineThe plane bending on road meets at right angles, and first end oralia and the 3rd port plate angle in 90 °, and secondThe angle that port plate and the 4th port plate are in 90 °, and first end oralia and the 4th port plate are respectivelyThere is the position-regulation portion being formed by two kinks, make to be connected to the connector on first end oraliaAnd be connected to the interval between the connector in the 4th port plate and be connected to the company in the second port plateConnect device identical with the interval between the connector being connected in the 3rd port plate.
Invention effect:
According to the present invention, a kind of all channels corresponding to UHF band can be provided, improve echo damageSynthesize/the distributor of the characteristic of consumption and the characteristic of isolation.
Brief description of the drawings
Fig. 1 is the stereogram of the major part of the distributor of one embodiment of the present invention.
Fig. 2 is the at length end of the transmission lines shown in presentation graphs 1 and the stereogram of port plate.
Fig. 3 is the characteristic of the degree of coupling, return loss and the isolation of the distributor in explanation embodimentFigure.
Fig. 4 is the stereogram of the major part of the resistance to electricity distributor of past case.
Fig. 5 be the degree of coupling of the distributor in distributor for the resistance to electricity of explanation past case, return loss andThe performance plot of isolation.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are at length described.
Fig. 1 is the stereogram of the major part of the distributor of one embodiment of the present invention. Fig. 2 is detailedCarefully represent the end of transmission lines and the stereogram of port plate.
In Fig. 1,100 represent the housing of case shape, form barrier box. Transmission lines the 11, the 12nd, bandShape circuit is 50 Ω transfer paths. Transmission lines 11,12 clips dielectric (not in housing 100Diagram) configuration abreast. Transmission lines 11,12 intercouples, and forms coupling circuit.
In one end of transmission lines 11, be provided with terrestrial digital broadcasting signal defeated that is transfused to UHF bandInbound port plate (first end oralia) 11b, is provided with the output port of exporting digital broadcast signal at the other endPlate (the second port plate) 11a.
In addition, with one end of the approaching transmission lines 12 in above-mentioned one end of transmission lines 11, be provided withOutput oralia (the 3rd port plate) 12a of output digital broadcast signal. In addition, in transmission lines 12The other end, be provided with terminating end oralia (the 4th port plate) 12b. The 4th port plate is at housing 100Outside termination.
The end of each port plate 11a, 11b, 12a and 12b is connected to the company being located on housing 100Connect device (not shown) upper, be connected with outside via connector. Here, will be connected to port plate 11a,The external connection terminals of the connector on 11b, 12a and 12b is made as respectively port one 1A, 11B, 12AAnd 12B. In addition, terminating end oralia 12b terminates in the inside of housing 100, noThe connector that needs terminating end oralia 12b to use, thus port one 2B is not set.
Then, with reference to Fig. 2, the structure of port plate is described. Here, with input oralia 11bAnd output oralia 12a is that representative describes.
Output oralia 12a is formed in the plane identical with transmission lines 12. In addition input port,Plate 11b meets at right angles with respect to the plane bending of transmission lines 11, input oralia 11b and transmission lines11 plane angle in 90 °. , input oralia 11b and output oralia 12a are in 90 °Angle.
Be located at central authorities that connector on housing 100 is connected to the end 11b1 of input oralia 11b,Central authorities with the end 12a1 of output oralia 12a. Input oralia 11b has by two kinksThe length that 11b2,11b3 the form position-regulation portion 11b4 that is L so that the position of end 11b1 andThe position of end 12a1 is consistent in the short transverse of Fig. 2. And then, for return loss is improved,The cut bight of base portion 11b5 of input oralia 11b. In addition, output oralia 12a is also at base portionCut bight, 12a2 place.
Be formed on output oralia 11a and output oralia 12a on the other end of transmission lines 11Similarly form. In addition, be formed on terminating end oralia 12b on the other end of transfer path 12 withInput oralia 11b similarly forms. Output oralia 11a is formed on identical with transmission lines 11In plane. In addition, terminating end oralia 12b meets at right angles with respect to the plane bending of transmission lines 12, eventuallyThe plane angle in 90 ° of knot port plate 12b and transmission lines 12. , output oralia 11aThe angle in 90 ° with terminating end oralia 12b.
In the distributor of the present embodiment requiring as described above, input oralia 11b and outputThe angle that port plate 12a is in 90 °. In addition, output oralia 11a becomes 90 with terminating end oralia 12b° angle. Thereby, distolateral in transmission lines 11,12, do not exist input oralia 11b withThe part that output oralia 12a overlaps. In addition, distolateral at another of transmission lines 11,12, do not depositThe part overlapping with terminating end oralia 12b at output oralia 11a. Thus, at input oralia 11bAnd prevent unwanted electromagnetic coupled between output oralia 12a. In addition, at output oralia 11aAnd prevent unwanted electromagnetic coupled between terminating end oralia 12b.
Fig. 3 represents the characteristic of the distributor of embodiment. In figure, the degree of coupling 1 represents port one 1A mono-The degree of coupling between port one 1B, the degree of coupling 2 represents the degree of coupling between port one 1A-port one 2A. ThisOutward, return loss represents the return loss of port one 1A. In addition, isolation represents port one 1B-endIsolation between mouth 12A. In the distributor of embodiment, return loss and isolation are as Fig. 5 instituteShow, be improved as significantly-below 20dB.
Thereby, in the distributor of embodiment, corresponding to all channels of UHF, can be significantlyImprove the characteristic of return loss and the characteristic of isolation.
In the distributor of present embodiment, input oralia 11b becomes with output oralia 12aAngle and output oralia 11a and terminating end oralia 12b angulation are not limited to 90 °,Roughly 90 ° in the scope of 80 °～100 °, can obtain sufficient effect.
In addition, in the distributor of embodiment, bend with respect to transfer path 11 rectangular defeatedOn inbound port plate 11b, be provided with position-regulation portion 11b4, in addition, bending with respect to transfer path 12On rectangular terminating end oralia 12b, be provided with position-regulation portion (not shown). Thus, can the company of makingBe connected on the connector on input oralia 11b and be connected between the connector on terminating end oralia 12bInterval and be connected to connector on output oralia 11a and be connected on output oralia 12aConnector between interval identical. Thus, in the situation that multiple distributors are overlayed on support,Even distributor towards difference, also can make the position of each connector identical.
In addition, in the above-described embodiment, be illustrated as an example of distributor example, but for example by inciting somebody to actionThe 4th port plate termination, to the second port plate and the 3rd port plate input signal respectively, from the first portPlate output signal, thus, distributor also can be used as synthesizer and uses. Thereby the present invention will inventTitle be made as distribution/synthesizer.
And then the present invention not former state is limited to above-mentioned embodiment, implementation phase in do not departing from itIn the scope of purport, structural element distortion can be specialized.
For example, also can by by output oralia 12a with respect to 45 ° of the plane bendings of transmission lines 12,And by input oralia 11b with respect to 45 ° of the plane bendings of transmission lines 11, and make input oraliaThe angle that 11b and output oralia 12a are in 90 °.
Claims (1)
1. synthetic/distributor, has:
The first transmission lines;
First end oralia, is connected on one end of the first transmission lines;
The second port plate, is connected on the other end of the first transmission lines;
The second transmission lines, with above-mentioned the first transmission lines coupling;
The 3rd port plate, is connected to one of second transmission lines approaching with one end of the first transmission linesOn end; And
The 4th port plate, is connected on the other end of the second transmission lines;
It is characterized in that,
First end oralia meets at right angles with respect to the plane bending of the first transmission lines, and the 4th port platePlane bending with respect to the second transmission lines meets at right angles, and first end oralia becomes with the 3rd port plateThe angle of 90 °, the angle that the second port plate and the 4th port plate are in 90 °,
And first end oralia and the 4th port plate have respectively the position being formed by two kinks and adjustJoint portion, makes to be connected to the connector on first end oralia and is connected to the connector in the 4th port plateBetween interval and be connected to connector in the second port plate and be connected to the company in the 3rd port plateConnect interval between device identical.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009005848A JP4864988B2 (en) | 2009-01-14 | 2009-01-14 | Signal processing device |
| JP005848/2009 | 2009-01-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101783432A CN101783432A (en) | 2010-07-21 |
| CN101783432B true CN101783432B (en) | 2016-05-11 |
Family
ID=42523318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010002192.1A Expired - Fee Related CN101783432B (en) | 2009-01-14 | 2010-01-13 | Distribution/synthesizer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4864988B2 (en) |
| CN (1) | CN101783432B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207362B (en) * | 2016-08-12 | 2019-04-09 | 中国电子科技集团公司第四十一研究所 | Minimize high power directional coupler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003078311A (en) * | 2001-08-30 | 2003-03-14 | Nippon Dengyo Kosaku Co Ltd | Hybrid circuit |
| CN101305494A (en) * | 2005-09-09 | 2008-11-12 | 安伦公司 | Vertical inter-digital coupler |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6188305A (en) * | 1984-10-05 | 1986-05-06 | Fuji Electric Co Ltd | Program controller |
| JPH10135716A (en) * | 1996-10-31 | 1998-05-22 | Nec Eng Ltd | Directional coupler |
| JP3525337B2 (en) * | 1999-06-03 | 2004-05-10 | 三菱電機株式会社 | High frequency circuit |
-
2009
- 2009-01-14 JP JP2009005848A patent/JP4864988B2/en not_active Expired - Fee Related
-
2010
- 2010-01-13 CN CN201010002192.1A patent/CN101783432B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003078311A (en) * | 2001-08-30 | 2003-03-14 | Nippon Dengyo Kosaku Co Ltd | Hybrid circuit |
| CN101305494A (en) * | 2005-09-09 | 2008-11-12 | 安伦公司 | Vertical inter-digital coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010166232A (en) | 2010-07-29 |
| CN101783432A (en) | 2010-07-21 |
| JP4864988B2 (en) | 2012-02-01 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20160511 |