CN109167127A - A kind of low-temperature microwave filtering system based on adiabatic space electromagnetic coupling - Google Patents
A kind of low-temperature microwave filtering system based on adiabatic space electromagnetic coupling Download PDFInfo
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- CN109167127A CN109167127A CN201810796875.5A CN201810796875A CN109167127A CN 109167127 A CN109167127 A CN 109167127A CN 201810796875 A CN201810796875 A CN 201810796875A CN 109167127 A CN109167127 A CN 109167127A
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- microwave
- low
- temperature
- filtering unit
- coupling device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/30—Auxiliary devices for compensation of, or protection against, temperature or moisture effects ; for improving power handling capability
Abstract
The invention discloses a kind of low-temperature microwave filtering systems based on adiabatic space electromagnetic coupling, it can effectively solve the problem that the big problem of conductive heat leakage caused by low-temperature microwave filtering unit is directly connected to due to I/O cable, by way of adiabatic space electromagnetic coupling, its conductive heat leakage is reduced, this makes the microwave filtering component bulk temperature in low temperature uniform and stable, so that it is excellent to stablize its performance more；(more excellent performance of cable can be used than before, i.e. cable is thicker shorter, this is reduced the overall volume of microwave electron system, and performance is more excellent, and power is bigger, and is conducive to its Miniaturization Design；Under the premise of installing the low temperature filtering unit of identical quantity additional, the power consumption to refrigeration platform can be greatly reduced, so that the volume of superelectron system is greatly reduced with manufacturing cost；So that original some multichannel superelectron systems that can not be manufactured due to low temperature therefrom are implemented as possibility.
Description
Technical field
The invention belongs to low-temperature microwave technical field of filtering, and in particular to a kind of low temperature based on adiabatic space electromagnetic coupling
Microwave filtering system.
Background technique
Microwave electron system all plays a crucial role in various communication systems, the skill of high performance microwave system
Art index and characteristic play critical effect in entire communication system.
Since superconductor self-discovery, the production of microwave device has been had been widely used for.However, having been commercialized application now
Either high-temperature superconductive device or low-temperature superconducting device, operating temperature in 100K (subzero 173 degrees Celsius) hereinafter, need
Meet lower operating ambient temperature requirement.
Low temperature filtering unit is a kind of highly important microwave filtering component, its major function be for crossover frequency,
The signal that other frequencies are blocked by the signal of certain frequency is the indispensable component of microwave communication.Low temperature filtering
For component is compared to conventional filtering unit, have insertion loss is low, band edge is precipitous, Out-of-band rejection is high, it is closer in performance
In the ideal filter the characteristics of, have a wide range of applications in terms of mobile communication and signal detection.
Packaged type used by now most microwave electron systems using low temperature filtering unit as shown in Figure 1,
Including vacuum cavity 1 and low temperature platform 2 on its interior, it is placed in the low-temperature microwave filtering unit 3 on 2 surface of low temperature platform；
The input terminal of low-temperature microwave filtering unit 3 connects the microwave input of hermetic seal microwave connector on vacuum chamber by input cable 4
End 6；The output end of low-temperature microwave filtering unit 3 connects the micro- of the hermetic seal microwave connector on vacuum chamber by output cable 5
Wave output terminal 7；Since input cable 4 and output cable 5 are directly connected to 1 outside of vacuum cavity, this packaged type is used
I/O cable, so that the low temperature filtering unit in low-temperature condition is connected with the vacuum cavity in room temperature state, production
Raw very big conductive heat leakage.The calorie value is directly proportional to the material thermal conductivity and sectional area of microwave cable, is inversely proportional with its length.
It is uneven that conductive heat leakage can lead to superconducting filter component temperature, to reduce device performance.In practical applications, it is being continuously improved
While cryogenic filter part performance, conductive heat leakage is reduced, guarantees that superconducting filter component temperature uniformity is technological difficulties.
On the other hand, refrigeration machine is the significant components of microwave electron system, and modern microwave electronic system minimizes it
It is required that it is increasingly overcritical, but under prior art means, the power of refrigeration machine is usually directly proportional to the volume of refrigeration machine, that is, needs to disappear
The power of consumption more large volume is bigger, and the weight of refrigeration machine and auxiliary equipment are also more, this has become microwave electron system
An integrated big bottleneck with application.The refrigeration machine more minimized is more difficult to improve workable effective power.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of, the low-temperature microwave based on adiabatic space electromagnetic coupling filters system
System reduces the conductive heat leakage of low-temperature microwave device in vacuum environment, improves low-temperature microwave filtering unit temperature uniformity, realizes high
The low-temperature microwave filtering characteristic of performance.
A kind of low-temperature microwave filtering system based on adiabatic space electromagnetic coupling, including microwave input port (6), microwave output
It holds (7), vacuum cavity (1), low temperature platform (2) on its interior and the low-temperature microwave filter for being placed in low temperature platform (2) surface
Wave component (3) further includes the input coupling device (10) connecting respectively with microwave input port (6) and microwave output end (7) and defeated
Coupling device (11) out；Input coupling device (10) face low-temperature microwave filtering unit (3) input terminal, the two pass through space
Electromagnetic coupling mode completes microwave signal transmission；Output coupling device (11) face low temperature filtering unit (3) output end, two
Person completes microwave signal transmission by spatial electromagnetic coupled modes；The input coupling device (10) and output coupling device (11)
On be provided with three-dimensional regulating mechanism, for adjust input coupling device (10) relative to temperature microwave filtering unit (3) input terminal with
And the relative position between output coupling device (11) and low temperature filtering unit (3) output end.
The invention has the following beneficial effects:
(1) low-temperature microwave filtering system of the invention can effectively solve the problem that low-temperature microwave filtering unit due to input and output
Cable is directly connected to the big problem of caused conductive heat leakage, by way of adiabatic space electromagnetic coupling, by its conductive heat leakage
It reduces, this makes the microwave filtering component bulk temperature in low temperature uniform and stable, so that it is excellent to stablize its performance more.
(2) low-temperature microwave filtering system of the invention, can be used more excellent performance of cable than before, i.e. cable is thicker
Shorter, this is reduced the overall volume of microwave electron system, and performance is more excellent, and power is bigger, and is conducive to its miniaturization
Design.
(3) low-temperature microwave filtering system of the invention makes under the premise of installing the low temperature filtering unit of identical quantity additional, pole
Big reduction to refrigeration platform power consumption so that the volume of superelectron system is greatly reduced with manufacturing cost.
(4) low-temperature microwave filtering system of the invention some can not be manufactured so that original due to low temperature therefrom
Multichannel superelectron system is implemented as possibility.
Detailed description of the invention
Fig. 1 is the composition schematic diagram of existing Conventional cryogenic microwave electron system；
Fig. 2 is the microwave device electromagnetic coupling schematic diagram of Conventional cryogenic microwave electron system；
Fig. 3 is the composition schematic diagram of the low-temperature microwave electronic system of the invention based on adiabatic space electromagnetic coupling；
Fig. 4 is enlarged drawing in circle shown in Fig. 3, is room temperature of the present invention and low-temperature microwave electronic device electromagnetic coupling
Schematic diagram；
Wherein, 1- vacuum cavity, 2- low temperature platform, 3- low-temperature microwave filtering unit, 4- input cable, 5- output cable,
6- microwave input port, 7- microwave output end, 8,9- three-dimensional regulating mechanisms, 10- input coupling device, 11- output coupling device.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in figure 3, the composition for the low-temperature microwave electronic system of the invention based on adiabatic space electromagnetic coupling is illustrated
Figure also includes vacuum cavity 1, low temperature platform 2 on its interior and the low-temperature microwave filtering group for being placed in 2 surface of low temperature platform
Part 3；Unlike conventional low-temperature microwave electronic system, the present invention is provided with input coupling device 10 and output coupling device
11 are directly connected to mode substitute input cable 4 and output cable 5；10 face low-temperature microwave filtering unit of input coupling device
3 input terminals, do not contact between the two；11 face low temperature filtering unit of output coupling device, 3 output end, also there are a fixed gaps；
It is different from the electromagnetic coupling mode of Conventional cryogenic microwave electron system shown in Fig. 2, input coupling device 10 of the invention with it is low
It between warm 3 input terminal of filtering unit and is spatial electromagnetic coupling between 3 output end of output coupling device 11 and low temperature filtering unit
Conjunction mode, since there is mutually overlapping electric and magnetic fields between microwave circuit resonator, when overlapping electromagnetic field meets one
Resonance coupling is generated when fixed frequency and location matches, realizes the selectivity transmission of microwave signal；The present invention is input coupling end
10 and output coupling end 11 three-dimensional regulating mechanism 8,9 is respectively set, for adjusting input coupling end 10 and output coupling end
11 spatial three-dimensional position is adjusted to adjust the electric field of two relative microwave devices and the interaction in magnetic field, is met when adjusting to arrive
When certain positional relationship, so that microwave device generates resonance coupling up and down, the selectivity transmission of microwave signal is realized.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (1)
1. a kind of low-temperature microwave filtering system based on adiabatic space electromagnetic coupling, including microwave input port (6), microwave output end
(7), vacuum cavity (1), low temperature platform (2) on its interior and the low-temperature microwave filtering for being placed in low temperature platform (2) surface
Component (3), which is characterized in that further include the input coupling device being connect respectively with microwave input port (6) and microwave output end (7)
(10) and output coupling device (11)；Input coupling device (10) face low-temperature microwave filtering unit (3) input terminal, the two
Microwave signal transmission is completed by spatial electromagnetic coupled modes；Output coupling device (11) the face low temperature filtering unit (3)
Output end, the two complete microwave signal transmission by spatial electromagnetic coupled modes；The input coupling device (10) and output coupling
It attaches together to set and is provided with three-dimensional regulating mechanism on (11), for adjusting input coupling device (10) relative to temperature microwave filtering unit
(3) relative position between input terminal and output coupling device (11) and low temperature filtering unit (3) output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796875.5A CN109167127B (en) | 2018-07-19 | 2018-07-19 | Low-temperature microwave filtering system based on adiabatic space electromagnetic coupling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796875.5A CN109167127B (en) | 2018-07-19 | 2018-07-19 | Low-temperature microwave filtering system based on adiabatic space electromagnetic coupling |
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| Publication Number | Publication Date |
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| CN109167127A true CN109167127A (en) | 2019-01-08 |
| CN109167127B CN109167127B (en) | 2020-06-23 |
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| CN201810796875.5A Active CN109167127B (en) | 2018-07-19 | 2018-07-19 | Low-temperature microwave filtering system based on adiabatic space electromagnetic coupling |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336018A (en) * | 1999-02-26 | 2002-02-13 | 富士通株式会社 | Superconducting filter module, superconducting filter, and heat-insulated coaxial cable |
| US6367266B1 (en) * | 1998-10-07 | 2002-04-09 | Fujitsu Limited | Heat insulation chamber, thermostatic chamber and cryostat |
| JP3392367B2 (en) * | 1999-03-12 | 2003-03-31 | 株式会社デンソー | Non-contact type high frequency transmission device |
-
2018
- 2018-07-19 CN CN201810796875.5A patent/CN109167127B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6367266B1 (en) * | 1998-10-07 | 2002-04-09 | Fujitsu Limited | Heat insulation chamber, thermostatic chamber and cryostat |
| CN1336018A (en) * | 1999-02-26 | 2002-02-13 | 富士通株式会社 | Superconducting filter module, superconducting filter, and heat-insulated coaxial cable |
| JP3392367B2 (en) * | 1999-03-12 | 2003-03-31 | 株式会社デンソー | Non-contact type high frequency transmission device |
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| CN109167127B (en) | 2020-06-23 |
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