CN102709641A - 1-watt 2dB attenuation sheet of high-precision aluminum oxide ceramic substrate - Google Patents
1-watt 2dB attenuation sheet of high-precision aluminum oxide ceramic substrate Download PDFInfo
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- CN102709641A CN102709641A CN2012102165372A CN201210216537A CN102709641A CN 102709641 A CN102709641 A CN 102709641A CN 2012102165372 A CN2012102165372 A CN 2012102165372A CN 201210216537 A CN201210216537 A CN 201210216537A CN 102709641 A CN102709641 A CN 102709641A
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Abstract
The invention discloses a 1-watt 2dB attenuation sheet of a high-precision aluminum oxide ceramic substrate, which comprises a high-thermal conductive aluminum oxide ceramic substrate, wherein the aluminum oxide ceramic substrate is 3.5 millimeters long, 2 millimeters wide and 0.635 millimeters thick, a front face of the aluminum oxide ceramic substrate is printed with high-purity silver pulp guide lines, the silver pulp guide lines are communicated with membrane-shaped resistors through high-temperature sintering, a back face of the aluminum oxide ceramic substrate is printed with a high-purity silver pulp back guide layer, and a front guide layer and the back guide layer are conducted through low-temperature silver pulp. On a scheme design, various performance indexes are fully considered, the attenuation sheet has high frequency and no induction, the situation that the attenuation sheet only can be originally applied to low frequency is broken through, the application requirement of the current three generation (3G) network can be met, and meanwhile, series product lines of a 1-watt fixed membrane-shaped resistance type attenuation sheet are expanded.
Description
Technical field
The present invention relates to a kind of aluminium oxide ceramics attenuator, the attenuator of 1 watt of 2dB of particularly a kind of high-precision alumina ceramic substrate.
Background technology
The attenuator of at present integrated three membranaceous resistive arrangement is widely used in apparatus field such as Aeronautics and Astronautics, radar, radio station, broadcast communication.The working load sheet can only merely consume the power of absorbing redundant; Analyze and use attenuator can also extract the signal that needs simultaneously at the power that absorbs reverse input; And on high-frequency circuit, adjust power level, and decouple, relevant device has been played protective effect.
Since more Zao with manufacturing abroad than domestic starting to the research and development of like product, the status of on product line still is product performance, all having the advantage.Existing attenuator attenuation accuracy is low on the domestic market simultaneously, and employable frequency range relative narrower.The attenuator that we hope is a power consumption component, can not be influential to two terminal circuits, that is to say, and all mate with two terminal circuits.When attenuation accuracy or VSWR do not reach when requiring, the signal that output obtains does not meet actual requirement.
Summary of the invention
Deficiency to above-mentioned prior art; The technical problem that the present invention will solve provides a kind of impedance and satisfies 50 ± 1.5 Ω; Is 2 ± 0.5dB in the 3G frequency range with interior attenuation accuracy, and standing wave requires input, output in 1.2, can satisfy 1 watt of 2dB attenuator of power aluminium oxide ceramic substrate of the application requirements of present 3G network; Replace external like product, and on characteristic, fill up the blank of home products.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
1 watt of 2dB attenuator of a kind of high-precision alumina ceramic substrate; The high heat conduction aluminium oxide ceramic substrate that comprises a long 3.5mm, wide 2mm, thickness 0.635mm; The front of said aluminium oxide ceramic substrate is printed with high-purity silver slurry lead; Said silver slurry lead is communicated with through the membranaceous resistance of high temperature sintering, and the back up of said aluminium oxide ceramic substrate has high-purity silver slurry back of the body conducting shell, is saidly just leading and is carrying on the back conducting and cross the conducting of low-temperature silver slurry.
Preferably, be printed with glass protection film on the membranaceous resistance of said high temperature sintering.
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: 1 watt of 2dB attenuator of this high-precision alumina ceramic substrate volume is little, thin thickness, and material cost effectively reduces; Output is high, and production cost effectively reduces; The symmetric circuit design, frequency characteristic is good, and the stability of circuit gets a promotion, and has broken the situation that original attenuator can only be applied to low frequency, makes attenuator can be applied to the network of 2G-3G.Can be widely used in the production of microwave products such as apparatus field isolator, circulator such as Aeronautics and Astronautics, radar, radio station, broadcast communication.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. specify as after.Embodiment of the present invention is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
As shown in Figure 1; 1 watt of 2dB attenuator of this high-precision alumina ceramic substrate comprises the high heat conduction aluminium oxide ceramic substrate 1 of a long 3.5mm, wide 2mm, thickness 0.635mm; The back up of aluminum oxide substrate 1 has high-purity silver slurry back of the body conducting shell, and the front of aluminum oxide substrate 1 is printed with high-purity silver slurry lead 2 and membranaceous resistance R 1, R2, R3, and membranaceous 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.This attenuator circuit is along the center line symmetry of aluminum oxide substrate; Membranaceous 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 membranaceous resistance R 1, R2, R3 like this.
It is 50 ± 1.5 Ω that 1 watt of 2dB attenuator of this aluminium oxide ceramic substrate requires 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 membranaceous resistance R 1, R3, R2, exports actual needed signal from output.
1 watt of 2dB attenuator of this high-precision alumina ceramic substrate volume is little, thin thickness, and material cost effectively reduces; Output is high, and production cost effectively reduces; The symmetric circuit design, frequency characteristic is good, and the stability of circuit gets a promotion, and has broken the situation that original attenuator can only be applied to low frequency, makes attenuator can be applied to the network of 2G-3G.Can be widely used in the production of microwave products such as apparatus field isolator, circulator such as Aeronautics and Astronautics, radar, radio station, broadcast communication.
More than 1 watt of 2dB attenuator of a kind of aluminium oxide ceramic substrate that the embodiment of the invention provided has been carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (3)
1. 1 watt of 2dB attenuator of a high-precision alumina ceramic substrate; It is characterized in that: the high heat conduction aluminium oxide ceramic substrate that comprises a long 3.5mm, wide 2mm, thickness 0.635mm; The front of said aluminium oxide ceramic substrate is printed with high-purity silver slurry lead; Said silver slurry lead is communicated with through the membranaceous resistance of high temperature sintering, and the back up of said aluminium oxide ceramic substrate has high-purity silver slurry back of the body conducting shell, is saidly just leading and is carrying on the back conducting and cross the conducting of low-temperature silver slurry.
2. 1 watt of 2dB attenuator of high-precision alumina ceramic substrate according to claim 1 is characterized in that: be printed with glass protection film on the membranaceous resistance of said high temperature sintering.
3. 1 watt of 2dB attenuator of high-precision alumina ceramic 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102165372A CN102709641A (en) | 2012-06-28 | 2012-06-28 | 1-watt 2dB attenuation sheet of high-precision aluminum oxide ceramic substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102165372A CN102709641A (en) | 2012-06-28 | 2012-06-28 | 1-watt 2dB attenuation sheet of high-precision aluminum oxide ceramic substrate |
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| Publication Number | Publication Date |
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| CN102709641A true CN102709641A (en) | 2012-10-03 |
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| CN2012102165372A Pending CN102709641A (en) | 2012-06-28 | 2012-06-28 | 1-watt 2dB attenuation sheet of high-precision aluminum oxide ceramic substrate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218290A (en) * | 2014-05-29 | 2014-12-17 | 苏州市新诚氏电子有限公司 | Ultrathin aluminum-oxide ceramic-substrate 2W-9dB attenuation piece |
| CN104241785A (en) * | 2014-05-29 | 2014-12-24 | 苏州市新诚氏电子有限公司 | High-precision ceramic 10-watt 15dB attenuation plate |
| CN107645029A (en) * | 2017-10-24 | 2018-01-30 | 苏州市新诚氏通讯电子股份有限公司 | Aluminium oxide ceramic substrate 30dB coupling pieces |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361127A (en) * | 2011-09-08 | 2012-02-22 | 苏州市新诚氏电子有限公司 | SMT (Surface Mount Technology) type load sheet (30W) using alumina ceramic substrate |
| CN102361124A (en) * | 2011-09-08 | 2012-02-22 | 苏州市新诚氏电子有限公司 | 30W3dB attenuating piece of aluminium nitride ceramic substrate |
-
2012
- 2012-06-28 CN CN2012102165372A patent/CN102709641A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361127A (en) * | 2011-09-08 | 2012-02-22 | 苏州市新诚氏电子有限公司 | SMT (Surface Mount Technology) type load sheet (30W) using alumina ceramic substrate |
| CN102361124A (en) * | 2011-09-08 | 2012-02-22 | 苏州市新诚氏电子有限公司 | 30W3dB attenuating piece of aluminium nitride ceramic substrate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218290A (en) * | 2014-05-29 | 2014-12-17 | 苏州市新诚氏电子有限公司 | Ultrathin aluminum-oxide ceramic-substrate 2W-9dB attenuation piece |
| CN104241785A (en) * | 2014-05-29 | 2014-12-24 | 苏州市新诚氏电子有限公司 | High-precision ceramic 10-watt 15dB attenuation plate |
| CN107645029A (en) * | 2017-10-24 | 2018-01-30 | 苏州市新诚氏通讯电子股份有限公司 | Aluminium oxide ceramic substrate 30dB coupling pieces |
| CN107645029B (en) * | 2017-10-24 | 2023-08-15 | 苏州市新诚氏通讯电子股份有限公司 | 30dB coupling piece of alumina ceramic substrate |
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Application publication date: 20121003 |