CN1075249C - N way power distributor/synthesizer - Google Patents
N way power distributor/synthesizer Download PDFInfo
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- CN1075249C CN1075249C CN97118559A CN97118559A CN1075249C CN 1075249 C CN1075249 C CN 1075249C CN 97118559 A CN97118559 A CN 97118559A CN 97118559 A CN97118559 A CN 97118559A CN 1075249 C CN1075249 C CN 1075249C
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- synthesizer
- power distributor
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
To improve power transmission efficiency by adding the second transmission line of the length of a constant multiple to a first transmission line and providing an RF switch to open/short-circuit a signal transmission route and automatically interrupting the signal transmission route connected to a circuit with a fault. For instance, when the signal transmission route between ports 36 and 10 becomes non-utilizable by the fault of an amplifier or the like, a controller 100 activates control signals CTL1, turns off the RF switches 44 and 60 and separates the signal transmission route connected to the port 36 from the port 10. Thus, the signal transmission routes among the ports 38, 40 and 42 remain, changeover to a 3-way power distributor/synthesizer is performed and it gets closer to the characteristic impedance value of logically 3 ways. Thus, even when 4 ways are turned to the 3 ways, the entire operation characteristics of the power distributor/synthesizer are not influenced and thus, use by arbitrarily changing the 4 ways and the 3 ways is made possible.
Description
The present invention relates to a kind of microwave system (Micro wave system), particularly relate to N way power distributor/synthesizer (N-Way power divider/Combiner).
The general use distributed to the power divider of a plurality of output ports to high frequency power and the high frequency power of a plurality of ports of input synthesized and exported to the power combiner of a port in the hyperfrequency system.
For example, the part of a plurality of needs distributed to the ultra-high frequency signal of exporting from a signal source effectively by power divider by certain ratio.Power combiner synthesizes the ultra-high frequency signal of exporting from a plurality of signal sources or amplifier effectively and improves the intensity of an antenna or output.Such synthesizer and distributor are generally a circuit.
As an example of above-mentioned such power distributor/synthesizer, there be " N-Way Wilkinson power divider " (wherein, N is the constant greater than 1) that is proposed by Wei Erjinsi (Wilkinson).The basic structure of N-Wei Erjinsi power divider is at least one output port that comprises the input port that is used to import at least one high-frequency signal and be used to distribute the high-frequency signal that output imported by above-mentioned input port.Structure although it is so can be made various forms, still, generally constitutes little band (Micro strip) line, and the example that is constituted on belt base plate is its representational example.
Fig. 1 represents the structure of N way power distributor/synthesizer of the prior art, and it is proposed by Wei Erjinsi and is called as " N road impartial Wei Erjinsi power divider ".
The formation and the work of the impartial Wei Erjinsi power divider in the N road that the above-mentioned Fig. 1 of following brief description constitutes like that.
When input high-frequency signal (RF) in port (10), above-mentioned high-frequency signal RF is imported into the node (N1) of transmission line (transmission line) (20,22,24, a 26) example.At this moment, above-mentioned transmission line (20,22,24,26) length separately is " λ/4 " (wherein, λ represents the wavelength of input high-frequency signal), their other end nodes (N2) separately are connected an example and are connected insulation (isolation) resistance (28 on the common node (CN) jointly, 30,32,34) on the opposite side.On the opposite side node N2 of the opposite side of above-mentioned like this insulation resistance (28,30,32,34) and above-mentioned transmission line (20,22,24 and 26), has the port (36,38,40,42) that is used to export the signal that is distributed.
Above-mentioned port (10) is used as common input/output port and uses, and these ports (36,38,40,42) use as the port of independent input/output signal.The high frequency power amplifier that on a plurality of ports (10,36,38,40,42), connects transmitter, receiver or the amplifying high frequency signal of output high-frequency signal respectively.
Like this, when input high-frequency signal (RF) in port as described above (10), the RF power of the above-mentioned high-frequency signal of importing is divided into the signal with same phase and amplitude and separates to N port (is 4 ports (36,38 in the formation of Fig. 1,40,42)) export.At this moment, when the load (load) of each port (36,38,40,42) is mated, on the insulation resistance (28,30,32,34) on the opposite side node N2 that is connected each transmission line (20,22,24,26), there is not power loss.Like this, only high-frequency signal is assigned to as the employed port of lead-out terminal (36,38,40,42) and transmits.
At this moment, in the structure of above-mentioned Fig. 1, has the length of " λ/4 " and be connected port (10) and a plurality of insulation resistance (28,30,32,34) transmission line between (20,22,24,26) with from the reflected signal of port (36,38,40,42) has identical phase place.When the characteristic impedance that makes such transmission line (20,22,24,26) is (Z
0) time, for following formula 1 such:
[formula 1]
In above-mentioned formula 1, n is not to be the natural number of " 0 ", R
0Be 64 this moments of line electricity of transmission line (20,22,24,26), the input impedance (Zin) of the N-Wei Erjinsi power divider that Fig. 1 is such is Z
0
When conversion during, work as the N road power combiner (N-Way power combiner) of synthetic (Combine) high-frequency signal by the input and output of above-mentioned such N road power divider of working.For example, port (36,38,40,42) input port as input high-frequency signal uses, when port (10) is used as the output port of exporting the high-frequency signal that is synthesized, just can use as N road power combiner, its work is so following.
When at each port (36,38,40,42) input is amplified by any high-frequency signal output device or a plurality of amplifier and during the high-frequency signal (RF2, RF3, RF4, RF5) of output, above-mentioned high-frequency signal (RF2, RF3, RF4, RF5) is by each transmission line (20,22 in, 24,26) supply with port (10), thus, in above-mentioned port (10), be synthesized and export.
At this moment, if the intensity of the signal of the above-mentioned high-frequency signal of importing (RF2, RF3, RF4, RF5) is all identical with phase place, the power of synthetic high-frequency signal (RF2, RF3, RF4, RF5) and appearing on the port (10) then.But, under the intensity of the signal of the high-frequency signal (RF2, RF3, RF4, RF5) of above-mentioned input and the different mutually situation of phase place, by under the situation that does not have power loss of the above-mentioned high-frequency signal of importing, synthesizing, only at insulation resistance (28,30,32,34) go up after a certain amount of power of consumption, export to port (10).
When relating to the such power distributor/synthesizer of Fig. 1, the output resistance of the resistance value of coupling insulation resistance (28,30,32,34) and port (36,38,40,42) etc. is important.
Fig. 2 is the structure of N way power distributor/synthesizer of the radiation shape (Radial type) of another prior art of expression.If with reference to Fig. 2, be such structure: common node (CN) connects into radiation shape, in above-mentioned common node (CN) be positioned between the common I/O mouth (10) of circle center and connect insulation resistance (28,30,32,34) and transmission line (20,22,24,26).The groundwork of actinoid N way power distributor/synthesizer like this is identical with the work of Wei Erjinsi power distributor/synthesizer shown in Figure 1.
But, the existing N road power divider of above-mentioned Fig. 1 and this spline structure of Fig. 2 is that the circuit that is connected on a plurality of signal transmission paths is (not shown, for example, high frequency power amplifier, transmitter, receiver etc.), be connected to the port (36 that uses as a plurality of input and output terminals from the port (10) that uses as common input and output terminal, 38,40, when the circuit on the port in the path 42) breaks down, under the state in certain path of not removing the generation problem, when distribution or synthetic subsequent power, produce the problem that causes power loss and make the degradation in efficiency of power.
First, the path supply power of connecting for faulty circuit by the power that distributes high-frequency signal constantly, cause " Pout/N " (wherein, Pout is the power output that is connected the circuit on the common input/output port (10), and N is the number as the path of natural Fig. 1) power loss.For example, although because of the circuit that is connected on the port (36) produces the input that fault does not need high-frequency signal, but be assigned as " N " by a high-frequency signal power (Pout), thereby cause the power dissipation of " Pout/N " from common input/output port (10).
The second, giving port (36,38 power division of the high-frequency signal of input port (10), 40,42) time, because the path of the port that circuit connected by fault, can not carry out the impedance matching of lead-out terminal, then the reflection characteristic of the integral body of power divider worsens.
The 3rd, when working, when breaking down in one in a plurality of circuit that are being connected on the port (36,38,40,42),, and produce the problem that whole output characteristic worsens owing to the output coupling that can not carry out on the port (10) as power combiner.
At last, structure as Fig. 1 and Fig. 2, the two adjacent transmission lines of existing N way power distributor/synthesizer for example two adjacent transmission lines to (20,22 or 22,24 and 24,26) be in close proximity to insulation resistance (28, the length of outline 30,32,34), thus, be difficult for the new function of increase because of being difficult to additional other element.
In order to address the above problem, the purpose of this invention is to provide a kind of structure that can improve the N way power distributor/synthesizer of power division or combined coefficient.
Another object of the present invention provides a kind of N road power divider, the high-frequency signal of exporting from any circuit is distributed to a plurality of receiving circuits, wherein, change road power divider by the operating state of a plurality of receiving circuits to N-i (wherein, i is not 0 constant).
Another object of the present invention provides a kind of N road power divider, automatically blocking-up is connected the power division path on the faulty circuit and reduces the characteristic impedance of distributor and the variation of input and output matching properties, even be converted to N-i road power divider from N road power divider, power division efficient can not reduce yet.
Another object of the present invention provides a kind of N road power combiner, can remove the coupling with faulty circuit, and automatically become N-i road power combiner from N road power combiner.
In order to address the above problem, the invention provides a kind of N way power distributor/synthesizer, comprising: common input/output port; Common node; And being connected N signal transmission path between common input/output port and the common node side by side, N is the natural number more than 2; Signal transmission path comprises: a side is connected first transmission line on the common input/output port; Be connected the input/output port on the first transmission line opposite side; Be connected the insulation resistance on the first transmission line opposite side; One side is connected second transmission line on the opposite side of insulation resistance; Be connected first switch between the common input/output port and first transmission line; And be connected second switch between second transmission line and the common node; First switch and second switch be switch simultaneously.
Description of drawings:
Fig. 1 is the figure of expression N of the prior art (way) way power distributor/synthesizer structure;
Fig. 2 is the structural map of the another kind of radiation shape N way power distributor/synthesizer of the prior art of expression;
Fig. 3 is the structural map of expression N way power distributor/synthesizer of the present invention;
Fig. 4 is the structural map of the radiation shape N way power distributor/synthesizer of expression second embodiment of the invention.
Come with reference to the accompanying drawings embodiment involved in the present invention is described.Use identical label to represent for part common among each embodiment, and the repetitive description thereof will be omitted.In the above description, only describe understanding the necessary part of work of the present invention, and the explanation of omitting other parts.
Fig. 3 is the structure of 4 way power distributor/synthesizers of expression first embodiment of the invention.Its structure additional following parts on the structure of above-mentioned Fig. 1 constitute.
Additional 4 the RF switches (44,46,48,50) that connect between port (10) that signal inputs or outputs jointly and a plurality of transmission lines (20,22,24,26).The transmission line switch circuit that additional connection RF switch (6X) (wherein, X represents 0,2,4,6) and second transmission line (5j) (wherein, j represents 2,4,6,8) are connected in series between a common node (CN) and insulation resistance (28,30,32, a 34) side.Wherein, second transmission line (52,54,56,58) length forms than first transmission line (20, the length of " n λ/2 " of the long prearranged multiple of length 22,24,26) " λ/4 ", why be like this because easily at insulation resistance (28,30,32,34) and between the common node (CN) append the RF switch.
In above-mentioned such formation, in a plurality of RF switches, work for a pair of with label 44,60,46,62,48,64 and 50,66.Control signal (the CTL1 that such RF switch is exported according to slave controller (100), CTL2, CTL3 CTL4) carries out break-make, and this controller (100) retrieval is as being connected first transmission line (20,22,24,26) input or output port and the port (36,38 that uses on the opposite side node, whether the circuit that is connected 40,42) (not shown) exists fault.
Wherein, above-mentioned controller (100) retrieval is connected port shown in Figure 3 (36,38,40,42) circuit on is the operating state of the such amplifier of high frequency power amplifier for example, when failing (Fail), as the circuit that produces corresponding control signal, for those skilled in the art, do not need to carry out above-mentioned explanation.But if describe particularly, when the circuit on being connected port (36) broke down, above-mentioned controller (100) only activated the CTL1 in a plurality of control signals, opened the RF switch (44 and 60) as a pair of work.
If be briefly described power division (or synthetic) work of 4 way power distributor/synthesizers of Fig. 3, for so following:
When owing to 4 way power distributor/synthesizers of Fig. 3 because of certain reason when for example the failure and other reasons of amplifier can not be utilized signal transmission path between port (36) and the port (10), controller (100) activation control signal (CTL1).At this moment, be connected from port (10) path (12,14 along separate routes, 16,18) and the pair of switches of the RF switch (44,60) in a plurality of RF switches between the common node (CN) be disconnected, the signal transmission path that port (36) is connected just separates from port (10).
As described above, when the signal transmission path between port (10) and (36) separates, port (10) and port (38,40 have only been remained, 42) 3 signal transmission paths between, the power distributor/synthesizer of Fig. 3 is converted to No. 3 power dividers or synthesizer from 4 the tunnel.By the break-make of such RF switch, when when 4 the tunnel are converted to 3 the tunnel, characteristic impedance becomes following formula 2, and near the characteristic impedance value of 3 way power distributor/synthesizers of the theory of following formula 3.
Formula 2:
Formula 3:
Like this, as can be seen,, can the operating characteristic of the power distributor/synthesizer of integral body not exerted an influence even 4 the tunnel become 3 the tunnel yet.That is, can change 4 the road and 3 the tunnel arbitrarily uses.
And the circuit of above-mentioned Fig. 3 has the length of " n λ/2 " between insulation resistance (28,30,32,34) and common node (CN), because second transmission line (52,54,56,58) that is added, the input-output characteristic of circuit integral body does not change.Action by above-mentioned such controller (100), can excise signal transmission path arbitrarily, effectively signal transmission path is for example first transmission line (22 of first transmission path, 24,26) insulation resistance (30,32,34) and between the output resistance become the constant times of " λ/2 " or " λ ", the characteristic of circuit does not almost change.
In above-mentioned first embodiment, although understand 4 tunnel example, still, those skilled in the art can easily be used for the N way power distributor/synthesizer by above-mentioned explanation.Promptly, use having the linear amplifier (LPA) or high power amplifier (HPA) system that are used for N power division or synthetic signal transmission path, when the more than one amplifier in a plurality of paths produces failure (fail), cut off easily the failure signal transmission path takes place, or be applicable to the circuit that needs unified control.
Like this, must in the high-frequency circuit that uses the N way power distributor/synthesizer, use switch, and be widely used in the circuit that needs control arbitrarily of each signal transmission path.
Fig. 4 represents the structure of the radiation shape N way power distributor/synthesizer of the second embodiment of the present invention.Its structure is to improve the structure of the such radiation shape power distributor/synthesizer of above-mentioned Fig. 2 with the described principle of Fig. 3.
That is, the formation of Fig. 4 comprises: common port (10); On the opposite side node, connect first transmission line (20,22,24,26) of signal input and output respectively with port (36,38,40,42) and insulation resistance (28,30,32,34); Be positioned at the RF switch (44,46,48,50) between an above-mentioned common port (10) and above-mentioned first transmission line (20,22,24, the 26) side gusset; Has second transmission line (52,54,56,58) of being longer than predetermined length and being connected in series than the length of above-mentioned first transmission line (20,22,24,26); Be connected to the RF switch (60,62,64,66) between the connected node of above-mentioned insulation resistance (28,30,32,34) and above-mentioned second transmission line (52,54,56,58).At this moment, the groundwork of above-mentioned whole parts is identical with the explanation of Fig. 3.Like this, only explanation and the difference of Fig. 3 in following explanation.
Press Fig. 4 like that at each insulation resistance (28,30,32,34) append second transmission line (52 between with n λ length, 54,56,58), under the situation of the signal transmission path that excises common port (10) and port (36) as shown in Figure 3, can disconnect the RF switch (60) of RF switch (44) and relative action with it.Control the disconnection/connection of this RF switch (44,60) and other RF switches by the output of the described controller of Fig. 3 (100).Even by this control, the 4 tunnel become 3 the tunnel, also can the operating characteristic of all power distributor/synthesizers not exerted an influence.
The characteristic of the power distributor/synthesizer that Fig. 4 is such can enlarge the work on the N road that is applicable to that Fig. 3 is such.The Ideal Characteristics impedance Z of N way power distributor/synthesizer
0Identical with following formula 4, and the Ideal Characteristics impedance Z of N-1 way power distributor/synthesizer
0Identical with following formula 5, when the formed N way power distributor/synthesizer of Fig. 4 structure among the present invention became the N-1 way power distributor/synthesizer, characteristic impedance value was that following formula 6 is such, thus, just can not produce very big influence to the characteristic of distributor.
Formula 4:
Formula 5:
Formula 6:
Like this, because the structure by the so actinoid N way power distributor/synthesizer of above-mentioned Fig. 4, just can excise the signal transmission path of the port that faulty circuit connects, therefore, just can prevent power loss.
Advantage of the present invention is: in order to disconnect/the connection signal transmission path, append tool at first transmission line Second transmission line that constant times length is arranged guarantees to arrange the space of RF switch, the letter of excision failure Number transmission path thus, can make the power transmission efficiency maximum. That is, be connected by automatically cutting off Signal transmission path on the circuit that fault produces in N signal transmission path thus, and improves power Efficiency of transmission. Even in the power divider/synthesis path of N road, change arbitrarily N, because characteristic impedance Amplitude considerably less, also can effectively utilize power distributor/synthesizer.
Claims (5)
1. a N way power distributor/synthesizer is characterized in that, comprising:
Common input/output port;
Common node; And
Be connected N signal transmission path between above-mentioned common input/output port and the above-mentioned common node side by side, N is the natural number more than 2;
Above-mentioned signal transmission path comprises:
One side is connected first transmission line on the above-mentioned common input/output port;
Be connected the input/output port on the above-mentioned first transmission line opposite side;
Be connected the insulation resistance on the above-mentioned first transmission line opposite side;
One side is connected second transmission line on the opposite side of above-mentioned insulation resistance;
Be connected first switch between above-mentioned common input/output port and above-mentioned first transmission line; And
Be connected the second switch between above-mentioned second transmission line and the above-mentioned common node;
Above-mentioned first switch and above-mentioned second switch be switch simultaneously.
2. N way power distributor/synthesizer according to claim 1 is characterized in that, the length of above-mentioned second transmission line is respectively n λ/2, and wherein n is not for comprising 0 constant.
3. N way power distributor/synthesizer according to claim 1 and 2 is characterized in that, also comprises controller, and retrieval is connected the operating state of the circuit on the above-mentioned input/output port, controls above-mentioned switch according to its result for retrieval.
4. N way power distributor/synthesizer according to claim 1 is characterized in that, the length that comprises first transmission line of above-mentioned first switch is λ/4.
5. N way power distributor/synthesizer according to claim 1 is characterized in that above-mentioned N is 4.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR33448/96 | 1996-08-12 | ||
| KR33448/1996 | 1996-08-12 | ||
| KR1019960033448A KR100279490B1 (en) | 1996-08-12 | 1996-08-12 | N-way power divider/combiner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1179030A CN1179030A (en) | 1998-04-15 |
| CN1075249C true CN1075249C (en) | 2001-11-21 |
Family
ID=19469383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97118559A Expired - Lifetime CN1075249C (en) | 1996-08-12 | 1997-08-12 | N way power distributor/synthesizer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3084517B2 (en) |
| KR (1) | KR100279490B1 (en) |
| CN (1) | CN1075249C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568993A (en) * | 2010-12-30 | 2012-07-11 | 细美事有限公司 | Adjustable capacitor, plasma impedance matching device, plasma impedance matching method, and substrate treating apparatus |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056562U (en) * | 1991-07-03 | 1993-01-29 | 株式会社東海理化電機製作所 | Switch device |
| KR100346746B1 (en) * | 2000-06-19 | 2002-08-03 | 주식회사 케이엠더블유 | Switchable two - way power divider/combiner |
| KR100384970B1 (en) * | 2000-09-14 | 2003-05-22 | 주식회사 에이스테크놀로지 | Switchable divider having matched transmission lines according to dividing branches |
| US6744312B2 (en) * | 2001-03-06 | 2004-06-01 | Andrew Corporation | Adaptive power amplifier system |
| KR20030043577A (en) * | 2002-02-18 | 2003-06-02 | 주식회사 에이스테크놀로지 | Switchable Power Combiner |
| EP1898523B1 (en) * | 2006-09-05 | 2012-07-04 | Alcatel Lucent | Switchable power divider circuit and power amplifier module |
| KR100807323B1 (en) | 2006-09-21 | 2008-02-28 | 주식회사 케이엠더블유 | Switchable combiner/divider with multi input/output |
| CN103682544B (en) * | 2013-11-22 | 2016-08-31 | 西安天和防务技术股份有限公司 | A kind of radar microwave power combiner with fault self-adapting function |
| JP2019012877A (en) * | 2017-06-29 | 2019-01-24 | ソニーセミコンダクタソリューションズ株式会社 | Distributor and synthesizer |
| CN108054484A (en) * | 2017-11-03 | 2018-05-18 | 西北核技术研究所 | A kind of n roads power combiner |
| KR102233511B1 (en) * | 2019-04-22 | 2021-03-30 | 장익수 | Ultra-wide band n-way power divider/combiner |
| KR102186801B1 (en) * | 2019-10-25 | 2020-12-04 | 주식회사 성산전자통신 | Power synthesizer capable of changing the number of ports to be used |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0350323A2 (en) * | 1988-07-08 | 1990-01-10 | Gec-Marconi Limited | Transmission line switch |
| US5343762A (en) * | 1992-10-05 | 1994-09-06 | Rosemount Inc. | Vortex flowmeter |
-
1996
- 1996-08-12 KR KR1019960033448A patent/KR100279490B1/en not_active IP Right Cessation
-
1997
- 1997-08-12 JP JP09259454A patent/JP3084517B2/en not_active Expired - Lifetime
- 1997-08-12 CN CN97118559A patent/CN1075249C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0350323A2 (en) * | 1988-07-08 | 1990-01-10 | Gec-Marconi Limited | Transmission line switch |
| US5343762A (en) * | 1992-10-05 | 1994-09-06 | Rosemount Inc. | Vortex flowmeter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568993A (en) * | 2010-12-30 | 2012-07-11 | 细美事有限公司 | Adjustable capacitor, plasma impedance matching device, plasma impedance matching method, and substrate treating apparatus |
| US9715996B2 (en) | 2010-12-30 | 2017-07-25 | Semes Co., Ltd. | Adjustable capacitor, plasma impedance matching device, plasma impedance matching method, and substrate treating apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100279490B1 (en) | 2001-02-01 |
| KR19980014459A (en) | 1998-05-25 |
| JPH10233601A (en) | 1998-09-02 |
| CN1179030A (en) | 1998-04-15 |
| JP3084517B2 (en) | 2000-09-04 |
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