CN202259638U - 200 W-30 dB attenuation sheet with nitride ceramic substrate - Google Patents
200 W-30 dB attenuation sheet with nitride ceramic substrate Download PDFInfo
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- CN202259638U CN202259638U CN 201120352042 CN201120352042U CN202259638U CN 202259638 U CN202259638 U CN 202259638U CN 201120352042 CN201120352042 CN 201120352042 CN 201120352042 U CN201120352042 U CN 201120352042U CN 202259638 U CN202259638 U CN 202259638U
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- aluminum nitride
- aluminium nitride
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- power
- attenuation sheet
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Abstract
The utility model discloses a high-power 200 W-30 dB attenuation sheet with an aluminum nitride ceramic substrate. The high-power 200 W-30 dB attenuation sheet with the aluminum nitride ceramic substrate comprises a 9.55*9.55*1 MM aluminum nitride substrate; a back conductive layer is printed on the back side of the aluminum nitride substrate; leads and resistors are printed on the front side of the aluminum nitride substrate; and the leads are connected with the resistors to form an attenuation circuit. As the attenuation sheet enlarges a resistance area, the resistance to high-temperature and low-temperature impact performances of the attenuation sheet is added, quenching injury on the resistors, caused by high temperature, is avoided when an output end is welded with the leads, and the risk that the attenuation sheet is broken in the practical use process due to the quenching injury of the resistors is avoided. Through the optimized design of circuits, performance of the attenuation sheet is improved; and as the resistance value of each resistor is controlled precisely by controlling a surface resistivity to obtain a required attenuation value, the high-power 200 W-30 dB attenuation sheet with the aluminum nitride ceramic substrate disclosed by the utility model fills the void that 200 W-30 dB attenuation sheets with aluminum nitride ceramic substrates cannot be produced domestically.
Description
Technical field
The utility model relates to a kind of aluminium nitride ceramics attenuator, 200 watts of 30dB attenuators of particularly a kind of aluminium nitride ceramics substrate.
Background technology
Attenuator is to require to decay to certain ratio multiple (referring generally to power attenuation) to big voltage signal according to reality; Reach safe or desirable level value; Make things convenient for test job; Especially the extensive present most of communication base stations of utilization all are that utilizing high power pottery carrier sheet absorbs reverse input power in the communication component in radio frequency and microwave, and high-power ceramic carrier sheet can only merely consume the power of absorbing redundant, and can't do real-time monitoring to the working condition of base station; Work can't be made judgement when breaking down in time when the base station, and equipment is not had protective effect.Attenuator not only can absorb the power of reverse input in the communication component in communication base station, and can extract part signal in the communication component, and the base station is monitored in real time, and equipment is had protective effect.Attenuator is a kind of energy consumption element, becomes heat after the power consumption.Can imagine that after material structure was confirmed, the power capacity of attenuator had just been confirmed; If the power that lets attenuator bear surpasses the limiting value of design, attenuator will be burnt, so the design of material chosen and line construction; And the size of size, production technology is very big to the influence of power, market to environmental protection and compact in size require increasingly high; The beryllium oxide of use does not before meet environmental protection requirement as baseplate material.
The present domestic rare enterprise that can produce 30dB aluminium nitride substrate attenuator, the words that have also are more than 100W, the almost not production of the above aluminium nitride 30dB of 100W attenuator.Mostly domestic use is import.My department has captured the production of 150W-30dB attenuator.But along with the continuous development of science and technology, have higher requirement to the power of attenuator in market at present.
The utility model content
To the deficiency of above-mentioned prior art, the technical problem that the utility model will solve provides a kind of 9.55*9.55*1mm of being of a size of, and 50 ± 1.5 Ω are satisfied in impedance, stays and dials the 200W-30dB attenuator that can satisfy market demands with attenuation accuracy.For solving the problems of the technologies described above, the utility model adopts following technical scheme:
200 watts of 30dB attenuators of a kind of high-power aluminium nitride ceramics substrate; It comprises the aluminium nitride substrate of a 9.55*9.55*1MM; The back up of said aluminium nitride substrate has back of the body conducting shell; The front of said aluminium nitride substrate is printed with lead and resistance, and said lead connects output, the input that said resistance is connected to form the said attenuator circuit of attenuator circuit and is connected with a pad respectively, and this product is based on advanced person's thick-film technique production.
Preferably, be printed with glass protection film on the said resistance.
Preferably, the upper surface of said lead and glass protection film also is printed with one deck black protective film.
Technique scheme has following beneficial effect: 200 watts of 30dB attenuators of this high-power aluminium nitride ceramics substrate have been filled up the domestic blank that can not produce 200W-30dB aluminium nitride ceramics attenuator; Its standing wave and attenuation characteristic have all satisfied the demand in market; The resistor area that this design has simultaneously increased as far as possible; Its anti-high and low-temp impact property is increased, avoided when the output welding lead, high temperature is to the wound of quenching of resistance; Avoided because of the resistance wound of being quenched, the risk that can break down in actual use.
Above-mentioned explanation only is the general introduction of the utility model technical scheme, in order more to know the technological means of understanding the utility model, and can implement according to the content of specification, below with the preferred embodiment of the utility model and conjunction with figs. specify as after.The embodiment of the utility model is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Describe in detail below in conjunction with the preferred embodiment of accompanying drawing to the utility model.
As shown in Figure 1; 200 watts of 30dB attenuators of this high-power aluminium nitride ceramics substrate comprise the aluminium nitride substrate 1 of a 9.55*9.55*1MM; The back up of aluminium nitride substrate 1 has back of the body conducting shell, and the front of aluminium nitride substrate 1 is printed with lead 2 and resistance R 1, R2, R3, and resistance R 1, R2, R3 are connected to form attenuator circuit through lead; Attenuator circuit is electrically connected with back of the body conducting shell through the silver slurry, thereby makes the attenuator circuit earth-continuity.The input of this attenuator circuit is connected with a pad 5, and output is connected with a pad 6.Resistance R 1, R2, the last glass protection film 3 that is printed with of R3, the upper surface of lead 2 and glass protection film 3 also is printed with one deck black protective film 4, can form protection to lead 2 and resistance R 1, R2, R3 like this.All process steps is all based on advanced person's thick-film technique production.
It is 50 ± 1.5 Ω that 200 watts of 30dB attenuators of this high-power aluminium nitride ceramics substrate require the impedance of input and ground connection, and the impedance of output and ground is 50 ± 1.5 Ω.Signal input part gets into attenuator, through the progressively absorption to power of resistance R 1, R3, R2, exports actual needed signal from output.
200 watts of 30dB attenuators of this high-power aluminium nitride ceramics substrate with the aluminium nitride substrate of 9.55*9.55*1MM as substrate; The resistor area that this attenuator has increased; Its anti-high and low-temp impact property is increased, avoided when the output welding lead, high temperature is to the wound of quenching of resistance; Avoided because of the resistance wound of being quenched, the risk that can break down in actual use.Through the optimal design of circuit, improved the performance of attenuator, accurately control the resistance of each resistance through control surface resistivity, obtain the pad value that needs, filled up the domestic blank that can not produce 200W-30dB aluminium nitride substrate attenuator.
More than 200 watts of 30dB attenuators of high-power aluminium nitride ceramics substrate that the utility model embodiment is provided carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the utility model embodiment, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as the restriction to the utility model, and all any changes of being made according to the utility model design philosophy are all within the protection range of the utility model.
Claims (5)
1. 200 watts of 30dB attenuators of a high-power aluminium nitride ceramics substrate; It is characterized in that: it comprises the aluminium nitride substrate of a 9.55*9.55*1MM; The back up of said aluminium nitride substrate has back of the body conducting shell; The front of said aluminium nitride substrate is printed with lead and resistance, and said lead connects said resistance and is connected to form attenuator circuit, and the output of said attenuator circuit, input are connected with a pad respectively.
2. 200 watts of 30dB attenuators of high-power aluminium nitride ceramics substrate according to claim 1 is characterized in that: be printed with glass protection film on the said resistance.
3. 200 watts of 30dB attenuators of high-power aluminium nitride ceramics substrate according to claim 1, it is characterized in that: the upper surface of said lead and glass protection film also is printed with one deck black protective film.
4. 200 watts of 30dB attenuators of high-power aluminium nitride ceramics substrate according to claim 1 is characterized in that: said attenuator circuit adopts T type circuit structure.
5. 200 watts of 30dB attenuators of high-power aluminium nitride ceramics substrate according to claim 1 is characterized in that: said silver slurry lead is connected through ground connection silver slurry with said conductor layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120352042 CN202259638U (en) | 2011-09-20 | 2011-09-20 | 200 W-30 dB attenuation sheet with nitride ceramic substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120352042 CN202259638U (en) | 2011-09-20 | 2011-09-20 | 200 W-30 dB attenuation sheet with nitride ceramic substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259638U true CN202259638U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120352042 Expired - Fee Related CN202259638U (en) | 2011-09-20 | 2011-09-20 | 200 W-30 dB attenuation sheet with nitride ceramic substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361141A (en) * | 2011-09-20 | 2012-02-22 | 苏州市新诚氏电子有限公司 | 200W 30dB attenuation sheet of aluminum nitride ceramic substrate |
-
2011
- 2011-09-20 CN CN 201120352042 patent/CN202259638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361141A (en) * | 2011-09-20 | 2012-02-22 | 苏州市新诚氏电子有限公司 | 200W 30dB attenuation sheet of aluminum nitride ceramic substrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120920 |