CN206379448U - A kind of wideband phase balanced device of Stochastic Cooling System - Google Patents
A kind of wideband phase balanced device of Stochastic Cooling System Download PDFInfo
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- CN206379448U CN206379448U CN201621261601.9U CN201621261601U CN206379448U CN 206379448 U CN206379448 U CN 206379448U CN 201621261601 U CN201621261601 U CN 201621261601U CN 206379448 U CN206379448 U CN 206379448U
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Abstract
The utility model is related to the random cooling technology field of ringotron, more particularly, to a kind of wideband phase balanced device of Stochastic Cooling System.Including wideband orthogonal hybrid network, signal is inputted from the A ports of broadband quadrature hybrid, it is divided into two-way amplitude is equal, 90 ° of phase difference signal arrives separately at wideband orthogonal hybrid network C-terminal mouthful and D ports, signal is again from C-terminal mouthful and the reflection of D ports, A ports are wherein reflexed to all the way forms that amplitude is equal, the signal of reverse-phase (180 ° of difference) is cancelled out each other, another road reflexes to the B ports of wideband orthogonal hybrid network, and the B ports of wideband orthogonal hybrid network are connected with variable delay line；The C-terminal mouthful of wideband orthogonal hybrid network and D ports are connected by coaxial connector with open-end or short-circuit coaxial line respectively.It has extremely wide bandwidth, realizes the phasing under multiple octave frequency ranges, reaches the purpose of phase equalization；Its circuit is simple, and easy assembling and setting, it is easy to control operation has the advantages that reproducible.
Description
Technical field
The utility model is related to the random cooling technology field of ringotron, is used more particularly, to a kind of Stochastic Cooling System
Wideband phase balanced device.
Background technology
In ringotron, random cooling is cooled down with a broadband feedback system halved tie stream, on line
The radiofrequency signal that the detector of trip is detected and particle deviation is directly proportional, this output signal after filtering, delay, phase shift and
It is added to after amplification system on the impactor in downstream, particle obtains being proportional to correction for drift on impactor, so as to reach cold
But purpose.Certainly this requires that correction signal synchronously arrives at impactor with particle.Stochastic Cooling System is main by detector, low noise
Acoustic amplifier, microwave bridge, bandpass filter, phase shifter, variable attenuator, phase equalizer, variable delay line, power amplification
Device and impactor etc. are constituted.Wherein, phase equalizer is one of Primary Component of random cooled hardware system, because random cooling
System is a feedback loop, it is assumed that phase needed in whole working band is 180 °, when 180 ± 90 ° of phase needed for deviateing,
Will cause emittance increase (now be heating line, and non-cooled line), pass through in random cooled hardware system introduce
Phase equalizer makes phase equalization in whole working band, reaches good phase flatness, realizes that line is most preferably quickly cooled down
Purpose.
Phase equalizer is the device for correcting phase-frequency characteristic, in accelerator, radar, radio communication and power combing
Field is all widely used.The bandwidth of prior art overwhelming majority phase equalizer is restricted, more than four octaves
Wideband phase balanced device is rare to be referred to.The method for being used for phase equalization in frequency microwave frequency range at present has using all-pass coupled transfer
Collimation method and WAVEGUIDE LOADED resonator method etc..Have the shortcomings that to be difficult field adjustable using all-pass coupled transfer collimation method；Using waveguide
It is big that loading resonator method has the shortcomings that difficulty of processing is high, frequency range is used for size when below L-band.
The content of the invention
The purpose of this utility model is the broadband phase for providing a kind of Stochastic Cooling System in view of the shortcomings of the prior art
Position balanced device.So as to effectively solve the problems of the prior art.
To achieve the above object, the technical scheme that the utility model is taken is：A kind of described Stochastic Cooling System
Wideband phase balanced device, is characterized in including wideband orthogonal hybrid network, the A ports of signal from broadband quadrature hybrid are defeated
Enter, be divided into two-way amplitude is equal, 90 ° of phase difference signal arrives separately at wideband orthogonal hybrid network C-terminal mouthful and D ports,
Signal is again from C-terminal mouthful and the reflection of D ports, wherein it is equal, reverse-phase (180 ° of difference) to reflex to A ports formation amplitude all the way
Signal is cancelled out each other, and another road reflexes to the B ports of wideband orthogonal hybrid network, the B ports of wideband orthogonal hybrid network with can
Delay line is adjusted to be connected；The C-terminal mouthful of wideband orthogonal hybrid network and D ports pass through coaxial connector and open-end or short respectively
Road coaxial line connection.
Described wideband orthogonal hybrid network is 90 ° of hybrid networks of wideband orthogonal, and described coaxial connector is 50 ohm
Coaxial connector.
Described open-end or one end of short-circuit coaxial line is connected by coaxial connector with wideband orthogonal hybrid network
Connect, other end open-end or short circuit, the length of two root termination open circuit or short-circuit coaxial line is identical, and characteristic impedance is equal.
Described open-end or short-circuit coaxial line include outer conductor, inner wire and dielectric material, and dielectric material is arranged on
Between outer conductor and inner wire, when open-end or short-circuit coaxial line are terminal short circuit, coaxial outer conductor and inner wire are simultaneously
It is connected to ground.
The phase of the B port output signals of described wideband orthogonal hybrid network is represented by reflectance factor S11：
Reflectance factor S11 has relation with open-end or the characteristic impedance of short-circuit coaxial line and length, is opened a way by changing
Or the characteristic impedance size and the length of coaxial line of short-circuit coaxial line, phase-frequency curve is obtained, the purpose of phase equalization is realized.
The beneficial effects of the utility model are：A kind of wideband phase balanced device of described Stochastic Cooling System, it has
There is extremely wide bandwidth, the phasing under multiple octave frequency ranges can be realized, the purpose of phase equalization is reached；By reasonable
The length of variable delay line and coaxial line is adjusted, required phase-frequency curve can be obtained, so as to realize under various wide-bands
Phase equalization；Its circuit is simple, and easy assembling and setting, it is easy to control operation has the advantages that reproducible.
Brief description of the drawings：
Fig. 1 is circuit theory schematic diagram of the present utility model；
Fig. 2 is the coaxial line cross-sectional view in Fig. 1 of the present utility model；
When Fig. 3 is coaxial line termination open circuit of the present utility model, phase-frequency curve corresponding to different coaxial line lengths
Figure；
When Fig. 4 is that coaxial line termination of the present utility model is short-circuit, phase-frequency curve corresponding to different coaxial line lengths
Figure.
Shown in figure：1. wideband orthogonal hybrid network；2. coaxial connector；3. open-end or short-circuit coaxial line；3-1.
Inner wire；3-2. dielectric material；3-3. outer conductor；4. variable delay line.
Embodiment
It is described in further detail below in conjunction with the preferred example shown in accompanying drawing：
Specific embodiment 1：As illustrated in fig. 1 and 2, the wideband phase of a kind of Stochastic Cooling System described in the utility model
Balanced device, is characterized in including wideband orthogonal hybrid network 1, signal is inputted from the A ports of broadband quadrature hybrid 1, is divided into
Two-way amplitude is equal, phase differs C-terminal mouthful and D ports that 90 ° of signal arrives separately at wideband orthogonal hybrid network 1, and signal is again
From C-terminal mouthful and the reflection of D ports, wherein reflexing to A ports all the way forms that amplitude is equal, reverse-phase (180 ° of difference) signal phase
Mutually offset, another road reflexes to the B ports of wideband orthogonal hybrid network 1, and the B ports of wideband orthogonal hybrid network 1 are prolonged with adjustable
Slow line 4 is connected；The C-terminal mouthful of wideband orthogonal hybrid network and D ports pass through coaxial connector 2 and open-end or short circuit respectively
Coaxial line 3 is connected.
Described wideband orthogonal hybrid network 1 is 90 ° of hybrid networks of wideband orthogonal, and described coaxial connector 2 is 50 Europe
Nurse coaxial connector.
Described open-end or one end of short-circuit coaxial line 3 passes through coaxial connector 2 and the phase of wideband orthogonal hybrid network 1
The length of connection, other end open-end or short circuit, two root termination open circuit or short-circuit coaxial line 3 is identical, and characteristic impedance is equal.
Described open-end or short-circuit coaxial line 3 include outer conductor 3-3, inner wire 3-1 and dielectric material 3-2, medium
Material 3-2 is arranged between outer conductor 3-3 and inner wire 3-1, when open-end or short-circuit coaxial line 3 are terminal short circuit, coaxially
Line outer conductor 3-3 and inner wire 3-1 are connected to ground simultaneously.
The phase of the B port output signals of described wideband orthogonal hybrid network 1 is represented by reflectance factor S11：
Reflectance factor S11 has relation with open-end or the characteristic impedance of short-circuit coaxial line 3 and length, is opened a way by changing
Or the characteristic impedance size and the length of coaxial line of short-circuit coaxial line, phase-frequency curve is obtained, the purpose of phase equalization is realized.
When the utility model selects wideband orthogonal (90 °) hybrid network, it is desirable to which its leading indicator such as amplitude and phase is flat
Degree is fabulous, and input and output standing wave is small, and insertion loss is small, and isolation is tried one's best greatly.Wideband orthogonal (90 °) hybrid network is selected in embodiment
Network 1 is Werlatone companies of the U.S., and model QH7774-10, bandwidth of operation is 100MHz-1000MHz, and insertion loss is
0.6dB, standing wave is 1.3：1, amplitude flatness is less than ± 1dB, and phase flatness is less than ± 5 °, and isolation is 20dB Min.It is real
Apply and select the length of 50 ohm coaxial connectors 2 for 10-30mm in example, be precision stainless steel connector.Selection is opened in embodiment
Road coaxial line 3 be 25 ohm, open-ended probe characteristic impedance value size is unrestricted, can also select 75 ohm or other
Value.
The material of open ended coaxial wire 3 is unrestricted, and its dielectric constant is also unrestricted.The characteristic impedance of coaxial line with
The relative dielectric constant of internal and external conductor radii ratio and dielectric layer is relevant, and its expression formula is：
It is semi-rigid coaxial cable that open ended coaxial wire 3 is selected in embodiment.Selection variable delay line 4 is in embodiment
Pasternack companies of the U.S., model PE8243, with a width of DC-2GHz, standing wave is 1.5：1, maximum insertion is
0.5dB, phase adjusted is 60 degree/GHz.By the variable delay line 4 of reasonable adjusting phase equalizer, optimize the same of open-end
The characteristic impedance size of axis 3 and the length L for changing coaxial line 3, obtain phase-frequency curve needed for us, so as to profit
With the phase produced by the phase equalizer being introduced into system-frequency curve come the phase in correction system-frequency curve, phase equalization is realized
Purpose.When being illustrated in figure 3 the coaxial line termination open circuit of wideband phase balanced device, phase corresponding to different coaxial line lengths-
Frequency curve map.
In radio frequency microwave system, the characteristic impedance of microwave device is typically 50 ohm, and therefore, electromagnetic wave signal exists
One characteristic impedance is all linear change for parameters such as the phase in 50 ohm of uniform coaxial lines and decay.But in the present embodiment
In by introducing the coaxial line of open-end, produce the Phase Changing for the signal returned from coaxial line termination open-circuit reflection
Change, the purpose of phase equalization is realized so as to phase-frequency curve needed for obtaining.
Specific embodiment 2：As different from Example 1：The utility model is adjustable by reasonable adjusting phase equalizer
Delay line 4, the characteristic impedance size of the coaxial line 3 of optimization terminal short circuit and the length L for changing coaxial line 3, obtain our institutes
Need phase-frequency curve, so as to using the phase produced by the phase equalizer being introduced into system-frequency curve come in correction system
Phase-frequency curve, realize the purpose of phase equalization.When being illustrated in figure 4 the coaxial line termination short circuit of wideband phase balanced device, no
With the phase corresponding to coaxial line length-frequency curve map.In the present embodiment by introducing the coaxial line of terminal short circuit, make from coaxial
The Phase Changing for the signal that line terminal short circuit is reflected produces change, comes so as to phase-frequency curve needed for obtaining
Realize the purpose of phase equalization.
The utility model embodiment is not limited to coaxial line, it is also an option that other microwave transmission lines, such as microstrip line.If
Microstrip line is selected, whole wideband phase balanced device can be integrated in other circuits on one piece of compact circuit board, it is possible to achieve
The miniaturization of circuit, integrated, because its realization principle is similar to the above embodiments, here is omitted.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (5)
1. a kind of wideband phase balanced device of Stochastic Cooling System, it is characterized in that including wideband orthogonal hybrid network, signal from
The A ports input of wideband orthogonal hybrid network, is divided into that two-way amplitude is equal, phase differs 90 ° of signal and arriving separately at broadband just
C-terminal mouthful and the D ports of hybrid network are handed over, signal is again from C-terminal mouthful and the reflection of D ports, wherein reflexing to A ports all the way forms amplitude
The signal that equal, reverse-phase differs 180 ° is cancelled out each other, and another road reflexes to the B ports of wideband orthogonal hybrid network, broadband
The B ports of quadrature hybrid are connected with variable delay line；The C-terminal mouthful of wideband orthogonal hybrid network and D ports pass through respectively
Coaxial connector is connected with open-end or short-circuit coaxial line.
2. a kind of wideband phase balanced device of Stochastic Cooling System as claimed in claim 1, it is characterised in that：Described width
Band quadrature hybrid is 90 ° of hybrid networks of wideband orthogonal, and described coaxial connector is 50 ohm coaxial connectors.
3. a kind of wideband phase balanced device of Stochastic Cooling System as claimed in claim 1, it is characterised in that：Described end
One end of end open circuit or short-circuit coaxial line is connected by coaxial connector with wideband orthogonal hybrid network, other end open-end
Or short circuit, two root termination are opened a way or the length of short-circuit coaxial line is identical, and characteristic impedance is equal.
4. a kind of wideband phase balanced device of Stochastic Cooling System as claimed in claim 1, it is characterised in that：Described end
End open circuit or short-circuit coaxial line include outer conductor, inner wire and dielectric material, dielectric material be arranged on outer conductor and inner wire it
Between, when open-end or short-circuit coaxial line are terminal short circuit, coaxial outer conductor and inner wire are connected to ground simultaneously.
5. a kind of wideband phase balanced device of Stochastic Cooling System as claimed in claim 1, it is characterised in that：Described width
The phase of B port output signals with quadrature hybrid is represented by reflectance factor S11：
Reflectance factor S11 has relation with open-end or the characteristic impedance of short-circuit coaxial line and length, by changing open circuit or short
The characteristic impedance size and the length of coaxial line of road coaxial line, obtain phase-frequency curve, realize the purpose of phase equalization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621261601.9U CN206379448U (en) | 2016-11-13 | 2016-11-13 | A kind of wideband phase balanced device of Stochastic Cooling System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621261601.9U CN206379448U (en) | 2016-11-13 | 2016-11-13 | A kind of wideband phase balanced device of Stochastic Cooling System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206379448U true CN206379448U (en) | 2017-08-04 |
Family
ID=59402199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621261601.9U Withdrawn - After Issue CN206379448U (en) | 2016-11-13 | 2016-11-13 | A kind of wideband phase balanced device of Stochastic Cooling System |
Country Status (1)
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| CN (1) | CN206379448U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532199A (en) * | 2016-11-13 | 2017-03-22 | 中国科学院近代物理研究所 | Broadband phase equalizer for random cooling system |
| CN110429366A (en) * | 2019-08-16 | 2019-11-08 | 南京法利义电子有限公司 | Microwave and radiofrequency signal adder-subtracter |
-
2016
- 2016-11-13 CN CN201621261601.9U patent/CN206379448U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532199A (en) * | 2016-11-13 | 2017-03-22 | 中国科学院近代物理研究所 | Broadband phase equalizer for random cooling system |
| CN106532199B (en) * | 2016-11-13 | 2022-01-18 | 中国科学院近代物理研究所 | Broadband phase equalizer for random cooling system |
| CN110429366A (en) * | 2019-08-16 | 2019-11-08 | 南京法利义电子有限公司 | Microwave and radiofrequency signal adder-subtracter |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170804 Effective date of abandoning: 20220118 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170804 Effective date of abandoning: 20220118 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |