CN204103905U - A kind of C-band high-temperature superconductor receiving front-end - Google Patents
A kind of C-band high-temperature superconductor receiving front-end Download PDFInfo
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- CN204103905U CN204103905U CN201420507998.XU CN201420507998U CN204103905U CN 204103905 U CN204103905 U CN 204103905U CN 201420507998 U CN201420507998 U CN 201420507998U CN 204103905 U CN204103905 U CN 204103905U
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Abstract
The utility model relates to a kind of C-band high-temperature superconductor receiving front-end, comprises sealing waveguide transmission line, super conductive filter, cryogenic low noise amplifier, sealing SMA connector, normal temperature filtering amplifier module, vacuum dewar and control power supply.Super conductive filter and cryogenic low noise amplifier are fixedly linked respectively by the cold finger of screw and refrigeration machine.The sealing output of waveguide transmission line is connected with the output of super conductive filter, the output of super conductive filter is connected with the input of cryogenic low noise amplifier, the output of cryogenic low noise amplifier is connected by the input of heat insulation microwave cable with sealing SMA connector, and the output of sealing SMA connector is connected with the input of normal temperature filtering amplifier module.Sealing waveguide transmission line comprises the BJ70 waveguide and transmission line that seal welding is integrated.From above technical scheme, the utility model has the features such as noise factor is low, squareness factor is high, degree of suppression is high, volume is little.
Description
Technical field
The utility model relates to microwave technical field, is specifically related to a kind of C-band high-temperature superconductor receiving front-end.
Background technology
For ensureing the reception of small-signal, being only improved the receiving sensitivity of system, and determining that the sensitivity system index of receiver is system G/T value.The normal object adopting the method increasing antenna aperture or reducing noise coefficient to reach raising system G/T value for this reason, conventional device cannot reach requirement.The filter with low insertion loss of superconductive device, high out-of-side rejection are easy to just to reach conventional system and are beyond one's reach effect.
Utility model content
The purpose of this utility model is to provide a kind of C-band high-temperature superconductor receiving front-end, and this high-temperature superconductor receiving front-end has the features such as noise factor is low, squareness factor is high, degree of suppression is high, volume is little.
For achieving the above object, the utility model have employed following technical scheme:
A kind of C-band high-temperature superconductor receiving front-end, comprises sealing waveguide transmission line, super conductive filter, cryogenic low noise amplifier, sealing SMA connector, normal temperature filtering amplifier module, vacuum dewar and control power supply.Described super conductive filter and cryogenic low noise amplifier are fixedly linked respectively by the cold finger of screw and refrigeration machine.Described vacuum dewar adopts stainless steel material.
Specifically, the described output of sealing waveguide transmission line is connected with the output of super conductive filter, the output of described super conductive filter is connected with the input of cryogenic low noise amplifier, the output of described cryogenic low noise amplifier is connected by the input of heat insulation microwave cable with sealing SMA connector, and the output of described sealing SMA connector is connected with the input of normal temperature filtering amplifier module.
Further, described sealing waveguide transmission line comprises the BJ70 waveguide and transmission line that seal welding is integrated, and described BJ70 waveguide adopts orthohormbic structure, and described transmission line adopts the hard coaxial line of stainless steel.
Further, the sealing of described transmission line, super conductive filter, cryogenic low noise amplifier and heat insulation microwave cable is arranged in vacuum dewar.Described BJ70 waveguide and sealing SMA connector are welded on the outer wall of vacuum dewar respectively.
Further, described vacuum dewar outer wall is installed with 17 core hermetically sealed connectors and CF sealing flange.
Further, described super conductive filter is made up of chip and box body, and described chip is welded on the bottom of box body by indium sheet, and chip adopts magnesium oxide as substrate, and its thickness is 0.5mm; Described chip is arranged super conductive filter circuit, super conductive filter circuit is made up of input interface, output interface and several resonators be arranged between input interface and output interface; Described box body adopts titanium alloy material.
Further, quartzy wave transparent seal closure is welded with in described BJ70 waveguide.
From above technical scheme, integrated sealing waveguide transmission line, high temperature superconduction wave filter, cryogenic low noise amplifier, vacuum dewar, normal temperature filter amplifier module, refrigeration machine, control power supply integrate by the utility model, substantially reduce volume.When utility model works is in below 77K temperature, it is in C-band frequency range, and noise factor only has below 0.3dB, and gain is better than 45dB, squareness factor below 1.6, degree of suppression at more than 90dB, the vacuum degree of whole system can remain on below 0.1Pa for a long time.In sum, the utility model has the features such as noise temperature is low, squareness factor is high, degree of suppression is high, the sealing of energy long-term static.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of super conductive filter in the utility model.
Wherein:
1, BJ70 waveguide, 2, transmission line, 3, vacuum dewar, 4, super conductive filter, 5, cryogenic low noise amplifier, 6, sealing SMA connector, 7, normal temperature filtering amplifier module, 8, refrigeration machine, 9, control power supply, 10,17 core hermetically sealed connectors, 11, heat insulation microwave cable, 21, input interface, 22, output interface, 23, resonator.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
A kind of C-band high-temperature superconductor receiving front-end as shown in Figure 1, comprises sealing waveguide transmission line, high temperature superconduction wave filter 4, cryogenic low noise amplifier 5, sealing SMA connector 6, normal temperature filtering amplifier module 7, vacuum dewar 3 and controls power supply 9.Described high temperature superconduction wave filter 4 and cryogenic low noise amplifier 5 are fixedly linked respectively by the cold finger of screw and refrigeration machine 8.The utility model adopts refrigeration machine as low-temperature receiver, and refrigeration machine working temperature is at below 77K.Control power supply to be used for for refrigeration machine, cryogenic low noise amplifier, normal temperature twt amplifier assembly power supply.Preferably, described vacuum dewar 3 adopts stainless steel material integral sealing to be welded.
Specifically, the output of described sealing waveguide transmission line is connected with the output of high temperature superconduction wave filter 4, the output of described high temperature superconduction wave filter 4 is connected with the input of cryogenic low noise amplifier 5, the output of described cryogenic low noise amplifier 5 is connected by the input of heat insulation microwave cable 11 with sealing SMA connector 6, and the output of described sealing SMA connector 6 is connected with the input of normal temperature filtering amplifier module 7;
Further, described sealing waveguide transmission line comprises the standard BJ70 waveguide 1 and transmission line 2 that seal welding is integrated.Described standard BJ70 waveguide 1 adopts orthohormbic structure, and described transmission line 2 adopts the hard coaxial line of thin-wall stainless steel.
Further, the sealing of described transmission line 2, high temperature superconduction wave filter 4, cryogenic low noise amplifier 5 and heat insulation microwave cable 11 is arranged in vacuum dewar.Described BJ70 waveguide 1 and sealing SMA connector 6 are welded on the outer wall of vacuum dewar 3 respectively.
Further, described vacuum dewar 3 outer wall is installed with 17 core hermetically sealed connectors 10 and CF sealing flange.17 described core hermetically sealed connectors 10, for providing supplying channels for cryogenic low noise amplifier 5.Described CF sealing flange, for as bleeding point device.
Further, as shown in Figure 2, described high temperature superconduction wave filter 4 is made up of chip and box body, and described chip is welded on the bottom of box body by indium sheet, and adopts magnesium oxide as substrate, and its thickness is 0.5mm, 5000 dust high-temperature superconductor YBa in the sputtering of substrate two sides
2cu
3o
7-Δ film, in-situ sputtering 500 dust gold film on high-temperature superconducting thin film, superconducting transition temperature Tc>=90K, critical current density jc>=2 × 10
6a/ ㎝
2; Make high temperature superconduction wave filter by the technique such as photoetching, dry etching, cutting, wherein the high-temperature superconducting thin film of one side and golden film all retain, and as ground plane, another side is high temperature superconduction wave filter circuit.Super conductive filter circuit is made up of input interface 21, output interface 22 and several resonators 23 be arranged between input interface 21 and output interface 22; Described box body adopts titanium alloy material.
Further, quartzy wave transparent seal closure is welded with in described standard BJ70 waveguide 1.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection range that the utility model claims determine.
Claims (5)
1. a C-band high-temperature superconductor receiving front-end, is characterized in that: comprise sealing waveguide transmission line, super conductive filter (4), cryogenic low noise amplifier (5), sealing SMA connector (6), normal temperature filtering amplifier module (7), vacuum dewar (3) and control power supply (9); Described super conductive filter (4) and cryogenic low noise amplifier (5) are fixedly linked respectively by the cold finger of screw and refrigeration machine (8);
The output of described sealing waveguide transmission line is connected with the output of super conductive filter (4), the output of described super conductive filter (4) is connected with the input of cryogenic low noise amplifier (5), the output of described cryogenic low noise amplifier (5) is connected by the input of heat insulation microwave cable (11) with sealing SMA connector (6), and the output of described sealing SMA connector (6) is connected with the input of normal temperature filtering amplifier module (7);
Described sealing waveguide transmission line comprises the BJ70 waveguide (1) and transmission line (2) that seal welding is integrated, and described BJ70 waveguide (1) adopts orthohormbic structure, and described transmission line (2) adopts the hard coaxial line of stainless steel;
The sealing of described transmission line (2), super conductive filter (4), cryogenic low noise amplifier (5) and heat insulation microwave cable (11) is arranged in vacuum dewar; Described BJ70 waveguide (1) and sealing SMA connector (6) are welded on the outer wall of vacuum dewar (3) respectively.
2. a kind of C-band high-temperature superconductor receiving front-end according to claim 1, is characterized in that: described vacuum dewar (3) outer wall is installed with 17 core hermetically sealed connector (10) and CF sealing flanges.
3. a kind of C-band high-temperature superconductor receiving front-end according to claim 1, it is characterized in that: described super conductive filter (4) is made up of chip and box body, described chip is welded on the bottom of box body by indium sheet, and chip adopts magnesium oxide as substrate, and its thickness is 0.5mm; Described chip is arranged super conductive filter circuit, super conductive filter circuit is made up of input interface (21), output interface (22) and several resonators (23) be arranged between input interface (21) and output interface (22); Described box body adopts titanium alloy material.
4. a kind of C-band high-temperature superconductor receiving front-end according to claim 1, is characterized in that: be welded with quartzy wave transparent seal closure in described BJ70 waveguide (1).
5. a kind of C-band high-temperature superconductor receiving front-end according to claim 1, is characterized in that: described vacuum dewar (3) adopts stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507998.XU CN204103905U (en) | 2014-09-04 | 2014-09-04 | A kind of C-band high-temperature superconductor receiving front-end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507998.XU CN204103905U (en) | 2014-09-04 | 2014-09-04 | A kind of C-band high-temperature superconductor receiving front-end |
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| CN204103905U true CN204103905U (en) | 2015-01-14 |
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| CN201420507998.XU Active CN204103905U (en) | 2014-09-04 | 2014-09-04 | A kind of C-band high-temperature superconductor receiving front-end |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494419A (en) * | 2018-02-02 | 2018-09-04 | 综艺超导科技有限公司 | A kind of antenna integrated superconducting filter system |
| CN109391276A (en) * | 2018-11-15 | 2019-02-26 | 北京遥感设备研究所 | A kind of Frequency Adjustable high-temperature superconductor receiving front-end and application method |
-
2014
- 2014-09-04 CN CN201420507998.XU patent/CN204103905U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494419A (en) * | 2018-02-02 | 2018-09-04 | 综艺超导科技有限公司 | A kind of antenna integrated superconducting filter system |
| CN109391276A (en) * | 2018-11-15 | 2019-02-26 | 北京遥感设备研究所 | A kind of Frequency Adjustable high-temperature superconductor receiving front-end and application method |
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