CN101752067A - Transmission line transformer and combining and shunting device - Google Patents
Transmission line transformer and combining and shunting device Download PDFInfo
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- CN101752067A CN101752067A CN 201010119169 CN201010119169A CN101752067A CN 101752067 A CN101752067 A CN 101752067A CN 201010119169 CN201010119169 CN 201010119169 CN 201010119169 A CN201010119169 A CN 201010119169A CN 101752067 A CN101752067 A CN 101752067A
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Abstract
The invention provides a transmission line transformer and a combining and shunting device, wherein the transmission line transformer comprises a first winding, a second winding and a third winding; the first winding, the second winding and the third winding have the same number of turns; the first winding serves as a primary winding; a homo-polar end of the first winding serves as a signal input end, while a non-homo-polar end is grounded; the second winding and the third winding serve as secondary windings; the non-homo-polar end of the second winding and the non-homo-polar end of the third winding are connected with each other and are grounded; and the homo-polar end of the second winding and the homo-polar end of the third winding serve as signal output ends. Because of a structure per se of a three-line 1:1:1 transmission line transformer, the high-frequency response and the electrical conduction property, the transmission line transformer can realize combining and shunting of a super-wide frequency band signal of between 100 KHz and 3 GHz.
Description
Technical field
The present invention relates to the transformer technology field, particularly a kind of line transformer and close the road and branch apparatus.
Background technology
In the construction of station access network, many occasions need multiple public information network in same cable or same Optical Fiber Transmission at present.But present closing in road device and the branch apparatus, all can't satisfy as existing cavity mixer and little band mixer 100KHz～3GHz ultrabroad band multichannel different frequency range information network shunt and close the road.
Summary of the invention
The technical problem to be solved in the present invention is to utilize a kind of three-way 1: 1: 1 line transformer, the shunt that realizes various signals with close the road
The embodiment of the invention provides a kind of line transformer, comprising: first winding, second winding and the tertiary winding;
The number of turn of described first winding, second winding and the tertiary winding is identical;
Described first winding is as former limit winding; The homopolar end of described first winding is as signal input part, non-homopolar end ground connection;
Described second winding and the tertiary winding are as the secondary winding; The non-homopolar end of described second winding and the non-homopolar end of the tertiary winding ground connection of joining; The homopolar end of described second winding and the homopolar end of the tertiary winding are all as signal output part.
Preferably, connect first resistance between the homopolar end of the homopolar end of described second winding and the tertiary winding.
The embodiment of the invention also provides a kind of line transformer, comprising: first winding, second winding and the tertiary winding;
The number of turn of described first winding, second winding and the tertiary winding is identical;
Described second winding and the tertiary winding are as former limit winding; The homopolar end of described second winding and the homopolar end of the described tertiary winding are all as signal input part; The non-homopolar end of described second winding and the non-homopolar end of the tertiary winding ground connection of joining;
Described first winding is as the secondary winding, and the homopolar end of described first winding is as signal output part; The non-homopolar end ground connection of described first winding.
Preferably, connect second resistance between the homopolar end of the homopolar end of described second winding and the tertiary winding.
The embodiment of the invention also provides a kind of branch apparatus, comprises described line transformer, also comprises first signal source;
The homopolar end of described first winding connects first signal source, and the homopolar end of described second winding and the homopolar end of the tertiary winding are respectively the output of first shunting sign and second shunting sign.
The embodiment of the invention also provides a kind of road device that closes, and comprises described line transformer, also comprises secondary signal source and the 3rd signal source;
The homopolar end of described second winding connects the secondary signal source, and the homopolar end of the tertiary winding connects the 3rd signal source;
The signal output of the homopolar end of described first winding.
The embodiment of the invention also provides a kind of branch apparatus, it is characterized in that, comprises three described line transformers, is respectively first line transformer, second line transformer and the 3rd line transformer, also comprises first signal source;
The homopolar end of first winding of first line transformer connects described first signal source;
The homopolar end of second winding of first line transformer connects the homopolar end of first winding of second line transformer, and the homopolar end of the tertiary winding of first line transformer connects the homopolar end of first winding of the 3rd line transformer;
The non-homopolar end ground connection of first winding of second line transformer, the homopolar end of second winding of second line transformer and all signal output of the homopolar end of the tertiary winding;
The non-homopolar end ground connection of first winding of the 3rd line transformer, the homopolar end of second winding of the 3rd line transformer and all signal output of the homopolar end of the tertiary winding.
Preferably, all connect first resistance between the homopolar end of the homopolar end of second winding of described three line transformers and the tertiary winding.
The embodiment of the invention also provides a kind of road device that closes, it is characterized in that, comprise three described line transformers, be respectively first line transformer, second line transformer and the 3rd line transformer, also comprise first signal source, secondary signal source, the 3rd signal source and the 4th signal source;
The homopolar end of second winding of first line transformer connects the homopolar end of first winding of the 3rd line transformer, and the homopolar end of the tertiary winding of first line transformer connects the homopolar end of first winding of second line transformer;
The non-homopolar end ground connection of first winding of second line transformer, the homopolar end of second winding of second line transformer connects the 3rd signal source, and the homopolar end of the tertiary winding of second line transformer connects the 4th signal source;
The non-homopolar end ground connection of first winding of the 3rd line transformer, the homopolar end of second winding of the 3rd line transformer connects first signal source, and the homopolar end of the tertiary winding connects the secondary signal source;
The homopolar end of first winding of first line transformer is as the output that closes the road signal.
Preferably, all connect first resistance between the homopolar end of the homopolar end of second winding of described three line transformers and the tertiary winding.
Compared with prior art, the present invention has the following advantages:
Line transformer provided by the invention utilizes the self-characteristic and the operation principle of transmission line and transformer, and three-way 1: 1: 1 winding is made three-way 1: 1: 1 line transformer.In this three-way 1: 1: 1 line transformer, a winding is as former limit, two windings are as secondary in addition, the signal on the former limit of input will produce induction field by former limit winding in line transformer like this, this electromagnetic field passes to two secondary windings simultaneously by FERRITE CORE, make the identical induced electromotive force of generation on two secondary windings, form identical induced current.And divide the electromagnetic field that former limit winding produces equally.Since the polarity of output and input just as, so two secondary windings just can be exported two power, the identical signal of phase place, signal power is to be input to 1/2nd of former limit winding signal power.So just realized the shunt of signal.Perhaps, two windings are as former limit, and another winding is as secondary.All connect signal source on two windings on former limit, the signal of these two signal source inputs will produce induction field separately by winding separately, two electromagnetic fields are at the synthetic electromagnetic field of ferrite magnetic in-core, the intensity of this electromagnetic field is two electromagnetic field intensity sums, and pass to the secondary winding simultaneously, electromagnetic field after synthetic will make the secondary winding produce induced electromotive force, form induced current.To export the signal after these two signal sources are synthesized like this on the secondary winding.So just realized the road of closing of signal.Because the self structure of three-way 1: 1: 1 line transformer, high frequency response and characteristics of electrical conductivity decision, therefore, what line transformer provided by the invention can be realized 100KHz～3GHz ultrabroad band signal closes road and along separate routes.
Description of drawings
Fig. 1 is line transformer embodiment one schematic diagram provided by the invention;
Fig. 2 is the another embodiment schematic diagram of line transformer provided by the invention;
Fig. 3 is line transformer embodiment two schematic diagrames provided by the invention;
Fig. 4 is another embodiment schematic diagram of line transformer provided by the invention;
Fig. 5 is the embodiment schematic diagram that closes the road device provided by the invention;
Fig. 6 is the embodiment schematic diagram of branch apparatus provided by the invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Three-way 1: 1: 1 line transformer embodiment one:
Referring to Fig. 1, this figure is three-way 1: 1: 1 provided by the invention line transformer embodiment one schematic diagram.
Three-way 1: 1: 1 line transformer that present embodiment provides comprises: the first winding AB, the second winding CD and tertiary winding ED;
The described first winding AB, the second winding CD are identical with the number of turn of tertiary winding ED.
The described first winding AB is as former limit winding; The homopolar end of the described first winding AB is as signal input part, non-homopolar end ground connection.
Described second winding CD and tertiary winding ED are as the secondary winding; The non-homopolar end of the described second winding CD and the non-homopolar end of tertiary winding ED join, and ground connection; The homopolar end of the homopolar end of the described second winding CD and tertiary winding ED is all as signal output part.
Referring to Fig. 2, when the homopolar end of the first winding AB connects the first signal source E1, operation principle according to transformer, because the first winding AB, the turn ratio of the second winding CD and tertiary winding ED is 1: 1: 1, when the signal of the first signal source E1 passes through the first winding AB, generate an electromagnetic field among the first winding AB, electromagnetic field passes to the second winding CD and tertiary winding ED simultaneously by the FERRITE CORE of three-way 1: 1: 1 line transformer T1, the second winding CD goes up with tertiary winding ED and produces identical induced electromotive force, and divides the electromagnetic field that the first winding AB produces equally.Therefore, the power and the phase place of two signals of the homopolar end of the homopolar end of the second winding CD and tertiary winding ED output are identical, and power be the first signal source E1 power 1/2nd.
Three-way 1: 1: 1 line transformer that present embodiment provides adopts three identical windings, the first winding AB is as former limit winding, the second winding CD and the non-homopolar end of tertiary winding ED join, and ground connection is as the secondary winding, like this, this three-way 1: 1: 1 line transformer can be realized the shunt of signal.Because the structure of this three-way 1: 1: 1 line transformer self, high frequency response and characteristics of electrical conductivity decision, therefore, this three-way 1: 1: 1 line transformer can realize that frequency is the shunt of signal of the ultrabroad band of 100KHz-3GHz.
Introduce the canoe of three windings of three-way 1: 1: 1 line transformer below, it is twisted together mutually to choose three copper enamelled wires that diameter is identical, length is identical, respectively as three windings, and it is can not twisting too tight, to reduce the standing wave on the circuit, avoid standing wave along the line to cause the deterioration of voltage and current conversion.Three windings twisted together pass one of them hole of 8 font FERRITE CORE simultaneously, pass from another hole again, carry out repeatedly, twine 2 to 3 circles at 8 font ferrite magnetic in-cores simultaneously, twine the number of turn and directly determine by the line of selecting enamelled wire for use until three windings.
Continuation connects first resistance R 1 referring to Fig. 2 between the homopolar end of the second winding CD of this three-way 1: 1: 1 line transformer and the homopolar end of tertiary winding ED.The effect of first resistance R 1 is to play balanced action, and the second winding CD is equated fully with two signal powers of tertiary winding ED output.When the second winding CD equated fully with two signal powers of tertiary winding ED output, the electrical potential difference at resistance R 1 two ends was 0, without any current flowing resistance R1.When two signal powers of the second winding CD and tertiary winding ED output were unequal, just there was certain electrical potential difference in resistance R 1 two ends, just have certain current flowing resistance R1.The sense of current is that the strong end of power flows to the weak end of power, so just makes two-port output two-way power, the identical two paths of signals of phase place.
The embodiment of the invention also provides a kind of branch apparatus, comprises three-way 1: 1: 1 line transformer that three-way 1: 1: 1 line transformer embodiment one provides, and also comprises the first signal source E1; Continuation is referring to shown in Figure 1.
The homopolar end of the described first winding AB connects the first signal source E1, and the homopolar end of the homopolar end of the described second winding CD and tertiary winding ED is respectively the output of first shunting sign and second shunting sign.
Three-way 1: 1: 1 line transformer embodiment two:
Referring to Fig. 3, this figure is three-way 1: 1: 1 provided by the invention line transformer embodiment two schematic diagrames.
Three-way 1: 1: 1 line transformer that present embodiment provides comprises: the first winding AB, the second winding CD and tertiary winding ED.
The described first winding AB, the second winding CD are identical with the number of turn of tertiary winding ED.
Described second winding CD and tertiary winding ED are as former limit winding; The homopolar end of the homopolar end of the described second winding CD and described tertiary winding ED is all as signal input part; The non-homopolar end of described second winding and the non-homopolar end of the tertiary winding join, and ground connection.
The described first winding AB is as the secondary winding, and the homopolar end of the described first winding AB is as signal output part; The non-homopolar end ground connection of the described first winding AB.
Homopolar end connection secondary signal source E2 as the second winding CD, when the homopolar end of tertiary winding ED connects the 3rd signal source E3, because the turn ratio of the first winding AB, the second winding CD and tertiary winding ED is 1: 1: 1, when the signal of secondary signal source E2 passes through the second winding CD, will produce induction field Z1 among the second winding CD; When the signal of the 3rd signal source E3 passes through tertiary winding ED, will produce induction field Z2 among the tertiary winding ED; The electromagnetic field intensity of electromagnetic field Z1 and Z2 will be by the signal power decision of signal source E1 and E2, and power is big more, and the intensity of electromagnetic field is big more.Induction field Z1 and induction field Z2 synthesize induction field Z3 in the FERRITE CORE of three-way 1: 1: 1 line transformer T1, the intensity of induction field Z3 is the intensity sum of induction field Z1 and induction field Z2.In building-up process, induction field Z1 and induction field Z2 do not crosstalk mutually, and be relatively independent.Induction field Z3 after synthetic passes to the first winding AB through FERRITE CORE, makes the first winding AB produce induced electromotive force, forms induced current.The signal of first winding AB output is the signal after secondary signal source E2 and the 3rd signal source E3 synthesize.Therefore, this three-way 1: 1: 1 line transformer road of closing of having realized signal.
Participate in Fig. 4, connect resistance R 1 between the homopolar end of the second winding CD of this three-way 1: 1: 1 line transformer and the homopolar end of tertiary winding ED.The effect of resistance R 1 is in order to increase the isolation between the second winding CD and the tertiary winding ED, avoids being input between two signal sources of two windings and crosstalks.
The embodiment of the invention also provides a kind of road device that closes, and comprises three-way 1: 1: 1 line transformer embodiment two described three-way 1: 1: 1 line transformers, also comprises secondary signal source E2 and the 3rd signal source E3; Continuation is referring to Fig. 3.
The homopolar end of the described second winding CD connects secondary signal source E2, and the homopolar end of tertiary winding ED connects the 3rd signal source E3.
The signal output of the homopolar end of the described first winding AB.
The embodiment of the invention also provides a kind of branch apparatus.
Referring to Fig. 5, this figure is four road branch apparatus embodiment schematic diagrames provided by the invention.
This branch apparatus is made up of 3 three-way 1: 1: 1 line transformers, realizes that one road signal is divided into the shunt of 4 road signals.Three-way 1: 1: 1 line transformer described in this device is identical with three-way 1: 1: 1 line transformer described in the embodiment one, be respectively first three-way 1: 1: 1 line transformer T1, second three-way 1: 1: 1 line transformer T2 and the 3rd three-way 1: 1: 1 line transformer T3, also comprise the first signal source E1.
The homopolar end of the first winding AB of first three-way 1: 1: 1 line transformer T1 connects the described first signal source E1.
The homopolar end of the second winding CD of first three-way 1: 1: 1 line transformer T1 connects the homopolar end of the first winding AB of second three-way 1: 1: 1 line transformer T2, and the homopolar end of the tertiary winding ED of first three-way 1: 1: 1 line transformer T1 connects the homopolar end of the first winding AB of the 3rd three-way 1: 1: 1 line transformer T3; The non-homopolar end of the second winding CD of first three-way 1: 1: 1 line transformer T1 and the non-homopolar end of tertiary winding ED join, and ground connection.
The non-homopolar end ground connection of the first winding AB of second three-way 1: 1: 1 line transformer T2, the homopolar end of the second winding CD of second three-way 1: 1: 1 line transformer T2 and all signal output of the homopolar end of tertiary winding ED; The non-homopolar end of the second winding CD of second three-way 1: 1: 1 line transformer T2 and the non-homopolar end of tertiary winding ED join, and ground connection.
The non-homopolar end ground connection of the first winding AB of the 3rd three-way 1: 1: 1 line transformer T3, the homopolar end of the second winding CD of the 3rd three-way 1: 1: 1 line transformer T3 and all signal output of homopolar end of tertiary winding ED; The non-homopolar end of the second winding CD of the 3rd three-way 1: 1: 1 line transformer T3 and the non-homopolar end of tertiary winding ED join, and ground connection.
Need to prove, all be connected with resistance between the homopolar end of second winding of described three three-way 1: 1: 1 line transformers and the homopolar end of the tertiary winding.As shown in Figure 5 resistance R 1, R2 and R3, three resistance are all identical.The effect of resistance R 1, R2 and R3 be for make the second winding CD and the tertiary winding ED output signal power equal fully, play balanced action.
By the analysis of three-way 1: 1: 1 line transformer embodiment one as can be known, when first winding of first three-way 1: 1: 1 line transformer connects the first signal source E1, second three-way 1: 1: 1 line transformer all can obtain identical signal output with two outputs of the 3rd three-way 1: 1: 1 line transformer, and the phase place of these four signals and frequency equate that power is 1/4th of the first signal source power.Like this, this branch apparatus has realized four along separate routes.
Be understandable that, can continue to increase described three-way 1: 1: 1 three-way 1: 1: 1 line transformer of this patent, reach the signal shunt of multichannel number, tell the more same signal of multichannel number.For example, can utilize 7 as three-way 1: 1: 1 line transformer embodiment one described three-way 1: 1: 1 line transformer to realize the shunt of 8 road signals.
The embodiment of the invention also provides a kind of road device that closes.
Referring to Fig. 6, this figure is the road device embodiment schematic diagram that closes provided by the invention.
The road device that closes that present embodiment provides is made up of 3 three-way 1: 1: 1 three-way 1: 1: 1 line transformers, realizes that 4 road signals synthesize 1 road signal.3 three-way 1: 1: 1 three-way 1: 1: 1 line transformers described in this device are identical with embodiment two described three-way 1: 1: 1 three-way 1: 1: 1 line transformers, be respectively first three-way 1: 1: 1 line transformer T1, second three-way 1: 1: 1 line transformer T2 and the 3rd three-way 1: 1: 1 line transformer T3, also comprise the first signal source E1, secondary signal source E2, the 3rd signal source E3 and the 4th signal source E4.
The homopolar end of the second winding CD of first three-way 1: 1: 1 line transformer T1 connects the homopolar end of the first winding AB of the 3rd three-way 1: 1: 1 line transformer T3, and the homopolar end of the tertiary winding ED of first three-way 1: 1: 1 line transformer T1 connects the homopolar end of the first winding AB of second three-way 1: 1: 1 line transformer T2; The non-homopolar end of the second winding CD of first three-way 1: 1: 1 line transformer T1 and the non-homopolar end of tertiary winding ED join, and ground connection.
The non-homopolar end ground connection of the first winding AB of the 3rd three-way 1: 1: 1 line transformer T3, the homopolar end of the second winding CD of the 3rd three-way 1: 1: 1 line transformer T3 connects the first signal source E1, and the homopolar end of tertiary winding ED connects secondary signal source E2; The non-homopolar end of the second winding CD of the 3rd three-way 1: 1: 1 line transformer T3 and the non-homopolar end of tertiary winding ED join, and ground connection.
The non-homopolar end ground connection of the first winding AB of second three-way 1: 1: 1 line transformer T2, the homopolar end of the second winding CD of second three-way 1: 1: 1 line transformer T2 connects the 3rd signal source E3, and the homopolar end of tertiary winding ED connects the 4th signal source E4; The non-homopolar end of the second winding CD of second three-way 1: 1: 1 line transformer T2 and the non-homopolar end of tertiary winding ED join, and ground connection.
The homopolar end of the first winding AB of first three-way 1: 1: 1 line transformer T1 is as the output that closes the road signal.
Need to prove, all connect first resistance between the homopolar end of second winding of described three three-way 1: 1: 1 line transformers and the homopolar end of the tertiary winding.As the resistance R among Fig. 63, R2 and R1.The effect of these three resistance is in order to increase the isolation between the second winding CD and the tertiary winding ED, avoids being input to producing between two signals of two windings and crosstalks.
By the analysis of three-way 1: 1: 1 line transformer embodiment two as can be known, when the former limit winding of second three-way 1: 1: 1 line transformer and the 3rd three-way 1: 1: 1 line transformer is connected signal source, first three-way 1: 1: 1 line transformer can obtain the composite signal of four signal sources, has so just realized the road of closing of four road signals.
Be understandable that, can increase the road of closing that three-way 1: 1: 1 line transformer embodiment two described three-way 1: 1: 1 line transformer are realized multiple signals.For example, the road of closing that utilizes 7 three-way 1: 1: 1 line transformer embodiment, two described three-way 1: 1: 1 line transformer can realize 8 road signals.
Introduce the characteristic of three-way 1: 1: 1 line transformer that the embodiment of the invention provides below.
Analysis for different FERRITE CORE:
If the magnetic permeability of FERRITE CORE is not with frequency change, for this three-way 1: 1: 1 line transformer, as long as can satisfy the requirement of frequency band low side, then also one satisfy the high-end requirement of frequency band surely, because high-frequency signal can produce stronger electromagnetic field field intensity than low frequency signal.But present problem is, the frequency range that three-way 1: 1: 1 line transformer relates to is extremely wide, and under wide like this working frequency range, nearly all ferrite magnetic conductance all can change.
For three-way 1: 1: 1 line transformer, hollow winding inductance L
oS is certain with magnetic core Snooker constant, and and frequency-independent, then according to the transmission formula of FERRITE CORE:
T is the transmission coefficient of FERRITE CORE in the following formula, R
gBe winding internal resistance, L
oBe elementary winding inductance, f
rBe the signal cut-off frequency, f is a signal frequency.
In following formula, only second on the right is relevant with frequency.Be not difficult to find out thus,, consider from the influence of magnetizing inductance so that loss more can meet the demands in that frequency band is high-end as long as can satisfy the requirement of loss at the frequency band low side.
The above shows in order to make transformer the operating frequency range of broad and lower loss are arranged, and should require the cut-off frequency of FERRITE CORE low, Snooker constant height.Because the long difference of various ferrite Snooker constants is little, therefore, its specification requirement only is low cut-off frequency.
Analysis for loss:
Loss is made up of two parts, and a part is because the loss that mismatch or reflection cause, this does not directly cause heating.Another part is that power loss is arranged, if disregard conductor resistance and dielectric loss, it is exactly the loss that the magnetic core magnetic permeability causes, under high power, except generally requiring the low transmission loss, must make that also power loss is low as far as possible, otherwise will rise owing to the loss heating causes the transformer temperature, thereby make its performance depreciation, will cause device to burn when serious.
So when selecting FERRITE CORE, should select small, the material that permeability is high, as 8 font FERRITE CORE, this shape magnetic core has above all requirements concurrently.
The principal character of this three-way 1: 1: 1 line transformer is: suitable frequency range is extremely wide, the shunt that can realize 100KHz～3GHz signal fully with close the road; The signal waveform complexity has sine wave, unipolarity rectangular pulse, square wave, triangular wave or trapezoidal wave, comprises the complicated wave form of each harmonic in addition; Structure type is varied, as annular or 8 fonts etc.
The radio frequency operation parameter of three-way 1: 1: 1 line transformer that the embodiment of the invention provides is as follows:
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (10)
1. a line transformer is characterized in that, comprising: first winding, second winding and the tertiary winding;
The number of turn of described first winding, second winding and the tertiary winding is identical;
Described first winding is as former limit winding; The homopolar end of described first winding is as signal input part, non-homopolar end ground connection;
Described second winding and the tertiary winding are as the secondary winding; The non-homopolar end of described second winding and the non-homopolar end of the tertiary winding ground connection of joining; The homopolar end of described second winding and the homopolar end of the tertiary winding are all as signal output part.
2. line transformer according to claim 1 is characterized in that, connects first resistance between the homopolar end of described second winding and the homopolar end of the tertiary winding.
3. a line transformer is characterized in that, comprising: first winding, second winding and the tertiary winding;
The number of turn of described first winding, second winding and the tertiary winding is identical;
Described second winding and the tertiary winding are as former limit winding; The homopolar end of described second winding and the homopolar end of the described tertiary winding are all as signal input part; The non-homopolar end of described second winding and the non-homopolar end of the tertiary winding ground connection of joining;
Described first winding is as the secondary winding, and the homopolar end of described first winding is as signal output part; The non-homopolar end ground connection of described first winding.
4. line transformer according to claim 3 is characterized in that, connects second resistance between the homopolar end of described second winding and the homopolar end of the tertiary winding.
5. a branch apparatus is characterized in that, comprises line transformer as claimed in claim 1, also comprises first signal source;
The homopolar end of described first winding connects first signal source, and the homopolar end of described second winding and the homopolar end of the tertiary winding are respectively the output of first shunting sign and second shunting sign.
6. one kind is closed the road device, it is characterized in that, comprises line transformer as claimed in claim 3, also comprises secondary signal source and the 3rd signal source;
The homopolar end of described second winding connects the secondary signal source, and the homopolar end of the tertiary winding connects the 3rd signal source;
The signal output of the homopolar end of described first winding.
7. a branch apparatus is characterized in that, comprises three line transformers as claimed in claim 1, is respectively first line transformer, second line transformer and the 3rd line transformer, also comprises first signal source;
The homopolar end of first winding of first line transformer connects described first signal source;
The homopolar end of second winding of first line transformer connects the homopolar end of first winding of second line transformer, and the homopolar end of the tertiary winding of first line transformer connects the homopolar end of first winding of the 3rd line transformer;
The non-homopolar end ground connection of first winding of second line transformer, the homopolar end of second winding of second line transformer and all signal output of the homopolar end of the tertiary winding;
The non-homopolar end ground connection of first winding of the 3rd line transformer, the homopolar end of second winding of the 3rd line transformer and all signal output of the homopolar end of the tertiary winding.
8. branch apparatus according to claim 7 is characterized in that, all connects first resistance between the homopolar end of second winding of described three line transformers and the homopolar end of the tertiary winding.
9. one kind is closed the road device, it is characterized in that, comprise three line transformers as claimed in claim 3, be respectively first line transformer, second line transformer and the 3rd line transformer, also comprise first signal source, secondary signal source, the 3rd signal source and the 4th signal source;
The homopolar end of second winding of first line transformer connects the homopolar end of first winding of the 3rd line transformer, and the homopolar end of the tertiary winding of first line transformer connects the homopolar end of first winding of second line transformer;
The non-homopolar end ground connection of first winding of second line transformer, the homopolar end of second winding of second line transformer connects the 3rd signal source, and the homopolar end of the tertiary winding of second line transformer connects the 4th signal source;
The non-homopolar end ground connection of first winding of the 3rd line transformer, the homopolar end of second winding of the 3rd line transformer connects first signal source, and the homopolar end of the tertiary winding connects the secondary signal source;
The homopolar end of first winding of first line transformer is as the output that closes the road signal.
10. the road device that closes according to claim 9 is characterized in that, all connects first resistance between the homopolar end of second winding of described three line transformers and the homopolar end of the tertiary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101191690A CN101752067B (en) | 2010-03-05 | 2010-03-05 | Transmission line transformer and combining and shunting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101191690A CN101752067B (en) | 2010-03-05 | 2010-03-05 | Transmission line transformer and combining and shunting device |
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| Publication Number | Publication Date |
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| CN101752067A true CN101752067A (en) | 2010-06-23 |
| CN101752067B CN101752067B (en) | 2012-07-18 |
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| CN2010101191690A Expired - Fee Related CN101752067B (en) | 2010-03-05 | 2010-03-05 | Transmission line transformer and combining and shunting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835997A (en) * | 2015-03-12 | 2015-08-12 | 深圳市研通高频技术有限公司 | Four-phase RF device |
| CN106410945A (en) * | 2015-07-29 | 2017-02-15 | 深圳市泰金田科技有限公司 | AC/DC power supply device |
| CN109167639A (en) * | 2018-08-20 | 2019-01-08 | 浙江晨泰科技股份有限公司 | Bandwidth carrier common mode interference suppressing method and module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3735245A (en) * | 1971-12-20 | 1973-05-22 | Gte Automatic Electric Lab Inc | Phase shifter circuit |
| JPS61224608A (en) * | 1985-03-29 | 1986-10-06 | Fujitsu Ltd | Phase shifter |
| SU1758891A1 (en) * | 1989-10-03 | 1992-08-30 | Научно-производственное объединение "Кибернетика" | Device for discrete information transfer |
| JP2003197433A (en) * | 2001-12-25 | 2003-07-11 | Sanyo Electric Co Ltd | Transmission line transformer and amplification unit using the same |
| CN1485947A (en) * | 2002-09-27 | 2004-03-31 | 三星电机株式会社 | 3-line balun transformer |
| CN101002296A (en) * | 2004-06-21 | 2007-07-18 | 萨默费尼根有限公司 | RF power supply for a mass spectrometer |
| CN201022047Y (en) * | 2007-01-11 | 2008-02-13 | 固安北信铁路信号有限公司 | Choke induction transformer for railway track circuit |
-
2010
- 2010-03-05 CN CN2010101191690A patent/CN101752067B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3735245A (en) * | 1971-12-20 | 1973-05-22 | Gte Automatic Electric Lab Inc | Phase shifter circuit |
| JPS61224608A (en) * | 1985-03-29 | 1986-10-06 | Fujitsu Ltd | Phase shifter |
| SU1758891A1 (en) * | 1989-10-03 | 1992-08-30 | Научно-производственное объединение "Кибернетика" | Device for discrete information transfer |
| JP2003197433A (en) * | 2001-12-25 | 2003-07-11 | Sanyo Electric Co Ltd | Transmission line transformer and amplification unit using the same |
| CN1485947A (en) * | 2002-09-27 | 2004-03-31 | 三星电机株式会社 | 3-line balun transformer |
| CN101002296A (en) * | 2004-06-21 | 2007-07-18 | 萨默费尼根有限公司 | RF power supply for a mass spectrometer |
| CN201022047Y (en) * | 2007-01-11 | 2008-02-13 | 固安北信铁路信号有限公司 | Choke induction transformer for railway track circuit |
Non-Patent Citations (2)
| Title |
|---|
| 《华东师范大学学报（自然科学版）》 19971231 应伟卫等 KHz-GHz传输线变压器的原理设计及应用 44-50 1-10 第1997年卷, 第4期 2 * |
| 《无线电通信技术》 19821031 徐鼎伟 实现宽带正交移相的一种有效方法 31-42 1-10 第1982年卷, 第5期 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835997A (en) * | 2015-03-12 | 2015-08-12 | 深圳市研通高频技术有限公司 | Four-phase RF device |
| CN106410945A (en) * | 2015-07-29 | 2017-02-15 | 深圳市泰金田科技有限公司 | AC/DC power supply device |
| CN109167639A (en) * | 2018-08-20 | 2019-01-08 | 浙江晨泰科技股份有限公司 | Bandwidth carrier common mode interference suppressing method and module |
| CN109167639B (en) * | 2018-08-20 | 2019-11-08 | 浙江晨泰科技股份有限公司 | A kind of bandwidth carrier common mode interference suppressing method and device |
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| CN101752067B (en) | 2012-07-18 |
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