CN101783432A - Sssynthesizer/distributor - Google Patents
Sssynthesizer/distributor Download PDFInfo
- Publication number
- CN101783432A CN101783432A CN201010002192A CN201010002192A CN101783432A CN 101783432 A CN101783432 A CN 101783432A CN 201010002192 A CN201010002192 A CN 201010002192A CN 201010002192 A CN201010002192 A CN 201010002192A CN 101783432 A CN101783432 A CN 101783432A
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- CN
- China
- Prior art keywords
- oralia
- transmission lines
- port plate
- distributor
- port
- 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.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 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
- 230000002194 synthesizing effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract 2
- 239000002699 waste material Substances 0.000 abstract 2
- 238000002955 isolation Methods 0.000 description 14
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention provides a synthesizer/distributor corresponding to all channels of the UHF band, with improved echo waste characteristic and insulation characteristic. The synthesizer/distributor has a transmission circuits constituting a coupling circuit. Furthermore, individual terminal port panels are respectively provided at both ends of the transmission circuits. The two closed terminal port panels at one end side of the transmission circuits form an angle of roughly 90 degrees. Furthermore, needless electromagnetic coupling can be prevented between the two close terminal port panels, the echo waste characteristic and insulation characteristic can be improved.
Description
Technical field
The present invention relates to synthetic/distributor of the broadcast singal that in the dispatching station of the broadcast singal that for example sends received terrestrial digital broadcasting etc., uses.
Background technology
The numeral transmitter uses distributor corresponding to UHF (Ultra HighFrequency: all channels of frequency band (470MHz～860MHz), require higher electric durability hyperfrequency) with synthesizer or digital transmitter.In addition, small-sized in order to realize, low-cost, do not use 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.
When constituting three-dB coupler, general distributor constitutes as shown in Figure 4.Use the near-earth configuration of joining of the transmission lines 31,32 of strip line.Be provided with port plate 31a, 31b at the two ends of transmission lines 31, the two ends of this external transmission lines 32 are provided with port plate 32a, 32b.Transmission lines 31,32 and port plate 31a, 31b, 32a, 32b are housed in the housing 200.
Distributor for example is transfused to signal at port 31A, exports the signal that is assigned with from port 31B and port 32A.In addition, port 32B is terminated.Such distributor is as the characteristic of representing among Fig. 5, and being difficult to return loss and isolation inhibition is below the 20dB.Among the figure, the degree of coupling between the degree of coupling 1 expression port 31A one port 31B, the degree of coupling between the degree of coupling 2 expression port 31A one port 32A.In addition, return loss is represented the return loss of port 31A.In addition, isolation is represented the isolation between port 31B one port 32A.
In addition, Japanese kokai publication hei 7-226609 communique discloses the directional coupler of the prior art that is associated with mentioned kind.This directional coupler is provided with the otch that usefulness is integrated in impedance on each port plate that is made of microstripline, also can guarantee directivity and isolation characteristic well even use in high frequency band.But the return loss of Japanese kokai publication hei 7-226609 communique and directional coupler and the adjusting of isolation are irrelevant.
In the past synthetic/distributor is relatively poor in return loss and isolation aspect characteristic.
Summary of the invention
Synthetic/the distributor that the purpose of this invention is to provide a kind of characteristic of all channels, the characteristic of having improved return loss and the isolation corresponding to UHF band.
In order to achieve the above object, have about of the present invention synthesizing/distributor: first transmission lines; First port plate is connected on the end of first transmission lines; Second port plate is connected on the other end of first transmission lines; Second transmission lines is coupled with first transmission lines; The 3rd port plate is connected on the end with near second transmission lines of a termination of first transmission lines; And the 4th port plate, being connected on the other end of second transmission lines, first port plate becomes roughly 90 with the 3rd port plate.Angle, second port plate becomes roughly 90 ° angle with the 4th port plate in addition.
The invention effect:
According to the present invention, can provide synthetic/distributor of a kind of characteristic of all channels, the characteristic of having improved return loss and the isolation corresponding to UHF band.
Description of drawings
Fig. 1 is the stereogram of major part of the distributor of one embodiment of the present invention.
Fig. 2 at length represents the end of transmission lines shown in Figure 1 and the stereogram of port plate.
Fig. 3 is the performance plot of the degree of coupling, return loss and the isolation of the distributor in the explanation execution mode.
Fig. 4 is the stereogram of the anti-electricity of example in the past with the major part of distributor.
Fig. 5 illustrates the anti-electric performance plot of using the degree of coupling, return loss and the isolation of the distributor in the distributor of example in the past.
Embodiment
Below, with reference to accompanying drawing embodiments of the present invention are at length described.
Fig. 1 is the stereogram of major part of the distributor of one embodiment of the present invention.Fig. 2 at length represents the end of transmission lines and the stereogram of port plate.
In Fig. 1, the housing of 100 expression case shapes constitutes barrier box.Transmission lines the 11, the 12nd, strip line is 50 Ω transfer paths.Transmission lines 11,12 clips dielectric (not shown) and disposes abreast in housing 100. Transmission lines 11,12 intercouples, and forms coupling circuit.
At an end of transmission lines 11, be provided with input oralia (first port plate) 11b of the terrestrial digital broadcasting signal that is transfused to the UHF band, be provided with output oralia (second port plate) 11a of output digital broadcast signal at the other end.
In addition, with an end of the near transmission lines 12 of an above-mentioned termination of transmission lines 11, be provided with output oralia (the 3rd port plate) 12a of output digital broadcast signal.In addition, at the other end of transmission lines 12, be provided with terminating end oralia (the 4th port plate) 12b.The 4th port plate is in the outside of housing 100 termination.
The end of each port plate 11a, 11b, 12a and 12b is connected on the connector of being located on the housing 100 (not shown), is connected with outside via connector.Here, the external connection terminals that is connected the connector on port plate 11a, 11b, 12a and the 12b is made as port one 1A, 11B, 12A and 12B respectively.In addition, under the situation that terminating end oralia 12b terminates in the inside of housing 100, the connector that does not need 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, be that representative describes with input oralia 11b and output oralia 12a.
Be located at connector on the housing 100 and be connected the central authorities of the end 12a1 of the central authorities of end 11b1 of input oralia 11b and output oralia 12a.It is the position-regulation portion 11b4 of L that input oralia 11b has the length that is formed by two kink 11b2,11b3, so that the position of the position of end 11b1 and end 12a1 is consistent on the short transverse of Fig. 2.And then, improve the cut bight of base portion 11b5 of input oralia 11b in order to make return loss.In addition, output oralia 12a is also in cut bight, base portion 12a2 place.
The output oralia 11a and the output oralia 12a that are formed on the other end of transmission lines 11 similarly form.In addition, terminating end oralia 12b and the input oralia 11b that is formed on the other end of transfer path 12 similarly forms.Output oralia 11a is formed on the plane identical with transmission lines 11.In addition, terminating end oralia 12b is bent into the right angle with respect to the plane of transmission lines 12, and terminating end oralia 12b becomes 90 ° angle with the plane of transmission lines 12.That is, output oralia 11a becomes 90 ° angle with terminating end oralia 12b
In the distributor of the present embodiment that requires as described above, input oralia 11b becomes 90 ° angle with output oralia 12a.In addition, output oralia 11a becomes 90 ° angle with terminating end oralia 12b.Thereby distolateral in transmission lines 11,12 do not exist input oralia 11b and output oralia 12a superposed part.In addition, distolateral at another of transmission lines 11,12, there are not output oralia 11a and terminating end oralia 12b superposed part.Thus, between input oralia 11b and output oralia 12a, prevented unwanted electromagnetic coupled.In addition, between output oralia 11a and terminating end oralia 12b, prevented unwanted electromagnetic coupled.
Fig. 3 represents the characteristic of the distributor of execution mode.Among the figure, the degree of coupling between the degree of coupling 1 expression port one 1A-port one 1B, the degree of coupling between the degree of coupling 2 expression port one 1A-port one 2A.In addition, return loss is represented the return loss of port one 1A.In addition, isolation is represented the isolation between port one 1B-port one 2A.In the distributor of execution mode, return loss and isolation are improved as-below the 20dB as shown in Figure 5 significantly.
Thereby, in the distributor of execution mode,, can improve the characteristic of return loss and the characteristic of isolation significantly corresponding to all channels of UHF.
In the distributor of present embodiment, input oralia 11b and output oralia 12a angulation and output oralia 11a and terminating end oralia 12b angulation are not limited to 90 °, roughly 90 ° promptly can access effect of sufficient in 80 °～100 ° the scope.
In addition, in the distributor of execution mode, on with respect to the rectangular input oralia 11b of transfer path 11 bendings, be provided with position-regulation portion 11b4, in addition, on respect to the rectangular terminating end oralia 12b of transfer path 12 bendings, be provided with position-regulation portion (not shown).Thus, the interval between the connector on can making the connector that is connected on the input oralia 11b and being connected terminating end oralia 12b and to be connected the connector on the output oralia 11a identical with the interval that is connected between the connector on the output oralia 12a.Thus, under situation about a plurality of distributors being overlayed on the support, even distributor towards difference, also can make the position of each connector identical.
In addition, in the above-described embodiment, be that example is illustrated with the distributor, but for example by the 4th port plate is terminated, to second port plate and the 3rd port plate difference input signal, from the first port plate output signal, thus, distributor also can be used as the synthesizer use.Thereby the present invention is made as distribution/synthesizer with the title of invention.
And then the present invention not former state is limited to above-mentioned execution mode, the implementation phase in the scope that does not break away from its purport, can and specialize structural element distortion.
For example, also can by with output oralia 12a with respect to 45 ° of the plane of transmission lines 12 bendings, and with input oralia 11b with respect to 45 ° of the plane bendings of transmission lines 11, and make input oralia 11b become 90 ° angle with output oralia 12a.
Claims (3)
1. one kind is synthesized/distributor, has:
First transmission lines;
First port plate is connected on the end of first transmission lines;
Second port plate is connected on the other end of first transmission lines;
Second transmission lines is with above-mentioned first transmission lines coupling;
The 3rd port plate is connected on the end with near second transmission lines of a termination of first transmission lines; And
The 4th port plate is connected on the other end of second transmission lines;
It is characterized in that,
First port plate becomes roughly 90 ° angle with the 3rd port plate, and second port plate becomes roughly 90 ° angle with the 4th port plate.
2. as claimed in claim 1 synthetic/distributor, it is characterized in that first port plate is bent into the right angle with respect to the plane of first transmission lines, and the 4th port plate is bent into the right angle with respect to the plane of second transmission lines.
3. as claimed in claim 1 synthesizing/distributor, it is characterized in that first port plate becomes the angle of 80 ° to 100 ° scope with the 3rd port plate, and second port plate becomes the angle of 80 ° to 100 ° scope with the 4th port plate.
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 true CN101783432A (en) | 2010-07-21 |
| CN101783432B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207362A (en) * | 2016-08-12 | 2016-12-07 | 中国电子科技集团公司第四十研究所 | Miniaturization high power directional coupler |
Family Cites Families (5)
| 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 |
| JP3606517B2 (en) * | 2001-08-30 | 2005-01-05 | 日本電業工作株式会社 | Hybrid circuit |
| CN101305494A (en) * | 2005-09-09 | 2008-11-12 | 安伦公司 | Vertical inter-digital coupler |
-
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
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207362A (en) * | 2016-08-12 | 2016-12-07 | 中国电子科技集团公司第四十研究所 | Miniaturization high power directional coupler |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4864988B2 (en) | 2012-02-01 |
| JP2010166232A (en) | 2010-07-29 |
| CN101783432B (en) | 2016-05-11 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 |
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| CF01 | Termination of patent right due to non-payment of annual fee |