CN212278558U - Ultra-low temperature integrated direct current bias device - Google Patents
Ultra-low temperature integrated direct current bias device Download PDFInfo
- Publication number
- CN212278558U CN212278558U CN202020647466.1U CN202020647466U CN212278558U CN 212278558 U CN212278558 U CN 212278558U CN 202020647466 U CN202020647466 U CN 202020647466U CN 212278558 U CN212278558 U CN 212278558U
- Authority
- CN
- China
- Prior art keywords
- cavity
- ultra
- low temperature
- temperature integrated
- direct current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model relates to an ultra-low temperature integrated direct current bias device, belonging to the technical field of electronic circuits; the device comprises a hollow cavity, cover plates, a plurality of chambers and direct current bias assemblies, wherein the cover plates are covered at the upper end and the lower end of the cavity and detachably connected with the cavity; the baffle plate assembly comprises a vertical baffle plate perpendicular to the cover plate and a layered baffle plate parallel to the cover plate, the layered baffle plate is fixedly connected with the inside of the cavity, and the vertical baffle plate is fixedly connected with the layered baffle plate. The utility model provides an ultra-low temperature integrated form direct current biasing ware reduces the volume and occupies, reduces the complexity of wiring for it is more convenient to install and use and maintain.
Description
Technical Field
The utility model relates to an ultra-low temperature integrated form direct current biasing ware belongs to electronic circuit technical field.
Background
Dc biasers are used to provide a bias current or bias voltage to an active device such as an amplifier, laser diode, photodiode, or optical modulator while allowing high-speed, ultra-wideband signals to pass through with minimal signal attenuation. These biases have low insertion loss, very wide frequency response and unusual time domain performance;
at present, the process for an active device having a plurality of devices requiring dc offsets is generally to separately process different devices, that is, a dc offset is added to each of the different devices to provide stable working conditions for the devices, however, such a separate processing method may result in an excessively large volume of the final whole device system, complicated wiring, and inconvenience in installation, use, or maintenance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide an ultra-low temperature integrated form direct current biasing ware, reduce the volume and occupy, reduce the complexity of wiring for it is more convenient to install and use and maintain the maintenance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an ultralow temperature integrated direct current bias device comprises a hollow cavity, cover plates, a plurality of chambers and direct current bias assemblies, wherein the cover plates are covered at the upper end and the lower end of the cavity and detachably connected with the cavity; the baffle plate assembly comprises a vertical baffle plate perpendicular to the cover plate and a layered baffle plate parallel to the cover plate, the layered baffle plate is fixedly connected with the inside of the cavity, and the vertical baffle plate is fixedly connected with the layered baffle plate.
Furthermore, the cavity is T-shaped, and the front part and the rear part are both concave inwards and are L-shaped; the direct current bias assembly comprises a printed board arranged in the cavity, a conical inductor arranged in the cavity and electrically connected with the printed board, a capacitor electrically connected with the printed board, a front side connector arranged in the front of the cavity and penetrating into the cavity and electrically connected with the printed board, and a rear side connector arranged in the rear of the cavity and penetrating into the cavity and electrically connected with the printed board.
Further, foretell ultra-low temperature integrated form direct current biasing ware still includes the little rectangle electric connector that sets up in cavity one end, little rectangle electric connector one end is connected with adjustable power electricity, the little rectangle electric connector other end is connected with every printed board electricity respectively.
Further, the conical inductor is made of a low-temperature-resistant enameled red copper wire.
Further, the cavity is made of a non-magnetic copper material.
Furthermore, the upper end surface of the vertical partition board and the upper surface of the cavity are positioned on the same plane, the lower end surface of the vertical partition board and the lower surface of the cavity are positioned on the same plane, and one side of the vertical partition board adjacent to the inner wall of the cavity is provided with a concave lead clamping groove; and a through hole for mounting the micro-rectangular electric connector is formed in one side of the layered partition plate.
Further, the printed board is made of a material having a dielectric constant greater than 10.
Furthermore, the cover plate is provided with a through mounting hole, and a fastening threaded hole is formed in the cavity corresponding to the mounting hole; and the screw penetrates through the mounting hole and is in threaded connection with the fastening threaded hole.
Furthermore, the upper surface and the lower bottom surface of the cavity are respectively provided with an inwards concave positioning pin hole, and a position, corresponding to the positioning pin hole, on the cover plate is provided with a raised positioning pin shaft which can be inserted into the positioning pin hole.
Further, the operating temperature of the ultra-low temperature integrated direct current biaser is-273 ℃.
Compared with the prior art, the utility model discloses the beneficial effect who reaches:
the technical scheme is provided with a plurality of chambers for placing the direct current bias assembly, so that the whole volume is reduced, the complexity of wiring and installation is reduced, and the use is convenient;
according to the technical scheme, the chambers are separated by the partition plates, so that the direct current bias assemblies in the chambers do not interfere with each other and work independently, and the stability of operation and use is ensured;
the technical scheme is provided with the wire clamping groove and the through hole, so that the arrangement and installation of the wires are facilitated, and the influence on the separation and sealing degree between the chambers is reduced;
the technical scheme is provided with the positioning pin shaft and the positioning pin hole, so that the rapid disassembly and assembly matching during installation can be realized, the positioning is accurate, the installation efficiency and the installation precision are improved, and the use stability is ensured;
this technical scheme toper inductance adopts low temperature resistant enameled red copper wire coiling, and the cavity adopts no magnetism copper product material, can guarantee the job stabilization nature when ultra-low temperature state.
Drawings
Fig. 1 is a schematic diagram of a three-dimensional explosion structure of an ultra-low temperature integrated dc bias device provided in an embodiment of the present invention;
fig. 2 is a schematic perspective view of an ultra-low temperature integrated dc bias device provided in an embodiment of the present disclosure;
fig. 3 is a schematic perspective view of a cavity of an ultra-low temperature integrated dc biaser according to an embodiment of the present disclosure;
fig. 4 is a diagram of a test result of a port of an ultra-low temperature integrated dc biaser provided in an embodiment of the present disclosure at normal temperature;
fig. 5 is a diagram illustrating a test result of a port of an ultra-low temperature integrated dc biaser provided by an embodiment of the present disclosure at an ultra-low temperature.
Description of reference numerals: the structure comprises a cavity 1, a cover plate 2, a cavity 3, a direct current offset assembly 4, a partition plate assembly 5, a vertical partition plate 6, a layered partition plate 7, a printed board 8, a tapered inductor 9, a capacitor 10, a front side connector 11, a rear side connector 12, a micro-rectangular electric connector 13, a wire clamping groove 14, a through hole 15, a mounting hole 16, a fastening threaded hole 17, a positioning pin hole 18 and a positioning pin shaft 19.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The ultra-low temperature integrated direct current bias device comprises a hollow cavity 1, cover plates 2 covering the upper end and the lower end of the cavity and detachably connected with the cavity, a plurality of chambers 3 arranged in the cavity and a direct current bias assembly 4 arranged in each chamber, wherein the chambers are separated by a partition plate assembly 5; the partition plate assembly comprises a vertical partition plate 6 perpendicular to the cover plate and a layered partition plate 7 parallel to the cover plate, the layered partition plate is fixedly connected with the inside of the cavity, and the vertical partition plate is vertically and fixedly connected with the layered partition plate;
the baffle plate assembly isolates each cavity, each cavity does not interfere with each other, and required direct current offset modules can be placed in each cavity as required, so that the interference between each direct current offset module is reduced, the working stability is ensured, a plurality of offset modules are integrated together, the space utilization efficiency is improved, the whole volume of equipment is reduced, the equipment integration level and the installation efficiency are improved, and the wiring complexity is reduced.
Advance quantity and position that can set up vertical baffle and layering baffle according to actual demand for the size and the quantity that control formed the cavity, baffle subassembly vertically and horizontally staggered is independent isolated with each cavity, has reduced the biasing subassembly mutual interference in each cavity, has guaranteed the job stabilization nature of equipment.
Furthermore, the cavity is T-shaped, and the front part and the rear part are both concave inwards and are L-shaped; the direct current bias assembly comprises a printed board 8 arranged in the cavity, a conical inductor 9 arranged in the cavity and electrically connected with the printed board, a capacitor 10 electrically connected with the printed board, a front side connector 11 arranged in the front of the cavity and penetrating into the cavity and electrically connected with the printed board, and a rear side connector 12 arranged in the rear of the cavity and penetrating into the cavity and electrically connected with the printed board;
the T-shaped arrangement and the L-shaped inward concave front and back sides are used for placing the front side connector and the back side connector, so that the whole equipment structure is more compact, the internal space occupation is reduced, the SMA connector is adopted as the front side connector and the back side connector in the embodiment, and the SMA connector can be selected as required in actual use;
the direct current bias module is a three-port network device, and the three ports are respectively a radio frequency port RF, a direct current bias port DC and a radio frequency direct current port RF & DC; the radio frequency signal is input through a front side connector or a rear side connector, the direct current bias voltage is input to a direct current bias port of the printed board through the micro rectangular connector, the direct current bias voltage and the radio frequency signal are output through an output connector corresponding to the signal input connector, and the direct current does not influence the radio frequency signal passing through the main transmission channel;
the conical inductor is welded on the printed board and used for adding direct current bias and isolating alternating current information, and high-frequency signals of the RF port are prevented from leaking to a power supply system; the capacitor is used for inputting radio frequency signals, and meanwhile, direct current voltage of the bias port can be prevented from leaking to a subsequent circuit or a test instrument.
The power supply further comprises a micro-rectangular electric connector 13 arranged at one end of the cavity, one end of the micro-rectangular electric connector is electrically connected with the adjustable power supply, and the other end of the micro-rectangular electric connector is electrically connected with each printed board;
the micro-rectangular electric connector is connected with each printed board through a lead, and a direct current bias signal is provided for each printed board.
In one embodiment, the tapered inductor is made of a low temperature resistant enameled copper wire;
the material has low thermal expansion coefficient, is suitable for working at ultralow temperature, can ensure stable structure and performance at ultralow temperature, and ensures that equipment can normally work at ultralow temperature.
In one embodiment, the cavity is made of a non-magnetic copper material;
the non-magnetic copper material has good electromagnetic shielding effect and low-temperature deformation resistance, can reduce the interference influence among different direct current biasers in the cavity and the structural strength of the cavity and the cavity, and ensures that the normal work of each direct current biaser is not influenced.
In one embodiment, the upper end surface of the vertical partition board and the upper surface of the cavity are positioned on the same plane, the lower end surface of the vertical partition board and the lower surface of the cavity are positioned on the same plane, and one side of the vertical partition board adjacent to the inner wall of the cavity is provided with a concave lead clamping groove 14; a through hole 15 for mounting a micro-rectangular electric connector is formed in one side of the layered partition plate;
wire draw-in groove and through hole can make things convenient for wearing to establish the installation of wire, and the terminal surface parallel and level about the upper and lower terminal surface of vertical baffle and the cavity can reduce the hole groove of establishing for guaranteeing that the wire wears to establish and seals isolated influence to the cavity.
In one embodiment, the printed board is made of a material with a dielectric constant greater than 10;
the high dielectric constant material can improve the conductive efficiency, reduce the width of the line on the printed board, further reduce the volume of the printed board, and reduce the deformation and the electrical property deterioration of the printed board in the ultra-low temperature environment.
Furthermore, a through mounting hole 16 is formed in the cover plate, and a fastening threaded hole 17 is formed in the cavity body corresponding to the mounting hole; the screw penetrates through the mounting hole and is in threaded connection with the fastening threaded hole;
the screw thread connection is used for convenient and quick disassembly and assembly, the efficiency is high, and the cost is low.
Furthermore, the upper surface and the lower bottom surface of the cavity are respectively provided with an inwards concave positioning pin hole 18, and a convex positioning pin shaft 19 which can be inserted into the positioning pin hole is arranged on the cover plate corresponding to the positioning pin hole;
the pin shaft and the pin hole are matched to realize prepositioning before screw thread fastening connection, so that relative movement among all parts in the mounting and locking process is prevented, the positions of all parts are fixed after mounting and locking, and the structural strength, the resistance and the working stability are ensured.
Further, the operating temperature of the ultra-low temperature integrated direct current biaser is-273 ℃. It can be seen from the comprehensive comparison between fig. 4 and fig. 5 that the ultra-low temperature integrated dc bias device provided by the technical scheme can meet the use requirements of various indexes at normal temperature, and can meet the use requirements in the ultra-low temperature environment because various indexes change less at the ultra-low temperature (-273 ℃) than at normal temperature.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (10)
1. An ultra-low temperature integrated form direct current biasing ware which characterized in that: the device comprises a hollow cavity (1), cover plates (2) which are covered on the upper end and the lower end of the cavity and detachably connected with the cavity, a plurality of cavities (3) arranged in the cavity and direct current bias assemblies (4) arranged in each cavity, wherein the cavities are separated by partition plate assemblies (5); the baffle plate assembly comprises a vertical baffle plate (6) perpendicular to the cover plate and a layered baffle plate (7) parallel to the cover plate, the layered baffle plate is fixedly connected with the inside of the cavity, and the vertical baffle plate is fixedly connected with the layered baffle plate perpendicularly.
2. An ultra-low temperature integrated dc biaser as recited in claim 1, wherein: the cavity is T-shaped, and the front part and the rear part are both concave inwards and are L-shaped; the direct current bias assembly comprises a printed board (8) arranged in the cavity, a conical inductor (9) arranged in the cavity and electrically connected with the printed board, a capacitor (10) electrically connected with the printed board, a front side connector (11) arranged in the front of the cavity and penetrating into the cavity and electrically connected with the printed board, and a rear side connector (12) arranged in the rear of the cavity and penetrating into the cavity and electrically connected with the printed board.
3. An ultra-low temperature integrated dc biaser as recited in claim 2, wherein: the adjustable power supply is characterized by further comprising a micro-rectangular electric connector (13) arranged at one end of the cavity, one end of the micro-rectangular electric connector is electrically connected with the adjustable power supply, and the other end of the micro-rectangular electric connector is electrically connected with each printed board.
4. An ultra-low temperature integrated dc biaser as recited in claim 2, wherein: the conical inductor is made of low-temperature-resistant enameled red copper wires.
5. An ultra-low temperature integrated dc biaser as recited in claim 1, wherein: the cavity is made of non-magnetic copper material.
6. An ultra-low temperature integrated dc biaser as recited in claim 1, wherein: the upper end surface of the vertical partition board and the upper surface of the cavity are positioned on the same plane, the lower end surface of the vertical partition board and the lower surface of the cavity are positioned on the same plane, and one side of the vertical partition board adjacent to the inner wall of the cavity is provided with a concave lead clamping groove (14); and a through hole (15) for mounting a micro-rectangular electric connector is formed in one side of the layered partition plate.
7. An ultra-low temperature integrated dc biaser as recited in claim 2, wherein: the printed board is made of a material with a dielectric constant larger than 10.
8. An ultra-low temperature integrated dc biaser as recited in claim 1, wherein: the cover plate is provided with a through mounting hole (16), and the cavity is provided with a fastening threaded hole (17) at a position corresponding to the mounting hole; and the screw penetrates through the mounting hole and is in threaded connection with the fastening threaded hole.
9. An ultra-low temperature integrated dc biaser as recited in claim 1, wherein: the upper surface and the lower bottom surface of the cavity are respectively provided with an inwards concave positioning pin hole (18), and a convex positioning pin shaft (19) capable of being inserted into the positioning pin hole is arranged on the cover plate corresponding to the positioning pin hole.
10. An ultra-low temperature integrated dc biaser as recited in claim 1, wherein: the working temperature was-273 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020647466.1U CN212278558U (en) | 2020-04-26 | 2020-04-26 | Ultra-low temperature integrated direct current bias device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020647466.1U CN212278558U (en) | 2020-04-26 | 2020-04-26 | Ultra-low temperature integrated direct current bias device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212278558U true CN212278558U (en) | 2021-01-01 |
Family
ID=73886619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020647466.1U Active CN212278558U (en) | 2020-04-26 | 2020-04-26 | Ultra-low temperature integrated direct current bias device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212278558U (en) |
-
2020
- 2020-04-26 CN CN202020647466.1U patent/CN212278558U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3930116A1 (en) | Filter connection apparatus and filter method | |
| CN109088133B (en) | Radio frequency device | |
| CN112446494A (en) | Universal type dilution refrigerator multi-channel extensible signal measuring device | |
| CN116598742A (en) | Low-temperature coupler and application method thereof | |
| CN109994809A (en) | Composite network microwave device and its microwave device cavity | |
| CN212278558U (en) | Ultra-low temperature integrated direct current bias device | |
| US8742869B2 (en) | Low passive inter-modulation capacitor | |
| CN109076266B (en) | Communication node | |
| CN111465227A (en) | Ultra-low temperature integrated direct current bias device | |
| CN109412389A (en) | Power supply change-over device | |
| CN209447999U (en) | Composite network microwave device and its microwave device cavity | |
| CN109244702B (en) | Line switching type terminal block with signal acquisition interface | |
| CN113484826B (en) | Integrated multifunctional power division switch network component based on vertical interconnection technology | |
| CN216929981U (en) | Laminated power amplifier device | |
| CN210225455U (en) | Closed box type exchanger | |
| CN208580835U (en) | A kind of cryrogenic coupler | |
| CN115692061A (en) | Novel intelligent control unit and circuit breaker | |
| CN215116455U (en) | Electric energy metering analyzer | |
| CN218734250U (en) | Silicon controlled rectifier trigger pulse device suitable for self-energy-taking high-voltage series connection | |
| CN220292358U (en) | Composite electronic switch assembly | |
| CN213460029U (en) | Integrated structure filtering coupling assembly | |
| CN213814763U (en) | Universal type dilution refrigerator multi-channel extensible signal measuring device | |
| CN213023369U (en) | Vertical interconnection test assembly | |
| CN219576649U (en) | SVG series connection power module and SVG equipment | |
| CN216928893U (en) | Multi-path polarization coupler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |