CN102723560A - 1-watt 14dB attenuator for aluminum oxide ceramic substrate - Google Patents
1-watt 14dB attenuator for aluminum oxide ceramic substrate Download PDFInfo
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- CN102723560A CN102723560A CN2012102166604A CN201210216660A CN102723560A CN 102723560 A CN102723560 A CN 102723560A CN 2012102166604 A CN2012102166604 A CN 2012102166604A CN 201210216660 A CN201210216660 A CN 201210216660A CN 102723560 A CN102723560 A CN 102723560A
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- attenuator
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Abstract
The invention discloses a 1-watt 14dB attenuator for an aluminum oxide ceramic substrate. The 1-watt 14dB attenuator comprises an aluminum oxide substrate with a size of 2*3.5*0.635mm, wherein a back conductor layer is printed on a back side of the aluminum oxide substrate; a lead and resistors are printed on a front side of the aluminum oxide substrate; the resistors are connected through the lead to form a T type attenuation circuit; the attenuation circuit is symmetrical about a central line of the aluminum oxide substrate; and an output end and an input end of the attenuation circuit are respectively connected with a bonding pad. According to the scheme design of the attenuator, various performance indexes are fully considered, high frequency and induction freeness are realized, the situation that an original attenuator is only applied to low frequency is broken through, the application requirement of a current 3G (3rd Generation) network can be met and a series production line of a 1-watt fixed membrane-like resistance type attenuator is also extended.
Description
Technical field
The present invention relates to a kind of aluminium oxide ceramics attenuator, the attenuator of 1 watt of 14dB of particularly a kind of aluminium oxide 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 14 ± 0.8dB in the 3G frequency range with interior attenuation accuracy; Standing wave requires input, output 1.2 with interior 1 watt of 14dB attenuator of power aluminium oxide ceramic substrate that can satisfy the application requirements of present 3G network, replaces external like product, and on characteristic, fills up the blank of home products.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
It comprises that one is of a size of the aluminum oxide substrate of 2*3.5*0.635MM 1 watt of 14dB attenuator of a kind of aluminium oxide ceramic substrate; The back up of said aluminum oxide substrate has back of the body conducting shell; The front of said aluminum oxide substrate is printed with lead and resistance; Said lead connects said resistance and is connected to form T type attenuator circuit, and said attenuator circuit is along the center line symmetry of said aluminum oxide substrate, and the output of said attenuator circuit, input are connected with a pad respectively.
Preferably, be printed with glass protection film on the said resistance.
Preferably, said lead is drawn in the middle of pad.
Preferably, the upper surface of said lead and glass protection film also is printed with the anti-electroplating film of one deck.
Technique scheme has following beneficial effect: 1 watt of 14dB attenuator of aluminium oxide ceramic substrate is in a fully state of symmetry by attenuator circuit, and institute's lead of narrate is drawn bottom pad, makes the standing wave that in this attenuator circuit, obtains excellence; Make the stability of circuit get a promotion; The client does not need painstakingly differentiation input and output in use simultaneously, greatly facilitates the client, has reduced the client yet and has caused the generation of defective products to embody the design of hommization fool proof because the input/output terminal welding is wrong aborning; And taken into account each item index of fixed resistance formula attenuator; Increase power capacity, enlarged the scope of product line, also broken the situation that original attenuator can only be applied to low frequency; Make attenuator can be applied to the network of 2G-3G, filled up domestic blank.The series product line of the value of differential declines has simultaneously enlarged the scope of application, gives the multiple selection in market.
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 14dB attenuator of this aluminium oxide ceramic substrate comprises the aluminum oxide substrate 1 of a 2*3.5*0.635MM; The back up of aluminum oxide substrate 1 has back of the body conducting shell, and the front of aluminum oxide substrate 1 is printed with 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 the anti-electroplating film 4 of one deck, 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 14dB 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 14dB attenuator of this aluminium oxide ceramic substrate is in a fully state of symmetry by attenuator circuit, and institute's lead of narrate is drawn bottom pad, makes the standing wave that in this attenuator circuit, obtains excellence; Make the stability of circuit get a promotion; The client does not need painstakingly differentiation input and output in use simultaneously, greatly facilitates the client, has reduced the client yet and has caused the generation of defective products to embody the design of hommization fool proof because the input/output terminal welding is wrong aborning; And taken into account each item index of fixed resistance formula attenuator; Increase power capacity, enlarged the scope of product line, also broken the situation that original attenuator can only be applied to low frequency; Make attenuator can be applied to the network of 2G-3G, filled up domestic blank.The series product line of the value of differential declines has simultaneously enlarged the scope of application, gives the multiple selection in market.
More than 1 watt of 14dB 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 (4)
1. 1 watt of 14dB attenuator of an aluminium oxide ceramic substrate; It is characterized in that: it comprises that one is of a size of the aluminum oxide substrate of 2*3.5*0.635MM; The back up of said aluminum oxide substrate has back of the body conducting shell, and the front of said aluminum oxide substrate is printed with lead and resistance, and said lead connects said resistance and is connected to form T type attenuator circuit; Said attenuator circuit is along the center line symmetry of said aluminum oxide substrate, and the output of said attenuator circuit, input are connected with a pad respectively.
2. 1 watt of 14dB attenuator of aluminium oxide ceramic substrate according to claim 1 is characterized in that: be printed with glass protection film on the said resistance.
3. 1 watt of 14dB attenuator of aluminium oxide ceramic substrate according to claim 1 is characterized in that: said lead is drawn in the middle of pad.
4. 1 watt of 14dB attenuator of aluminium oxide ceramic substrate according to claim 1 is characterized in that: the upper surface of said lead and glass protection film also is printed with the anti-electroplating film of one deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102166604A CN102723560A (en) | 2012-06-28 | 2012-06-28 | 1-watt 14dB attenuator for aluminum oxide ceramic substrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102166604A CN102723560A (en) | 2012-06-28 | 2012-06-28 | 1-watt 14dB attenuator for aluminum oxide ceramic substrate |
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| CN102723560A true CN102723560A (en) | 2012-10-10 |
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| CN2012102166604A Pending CN102723560A (en) | 2012-06-28 | 2012-06-28 | 1-watt 14dB attenuator for aluminum oxide ceramic substrate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218293A (en) * | 2014-05-29 | 2014-12-17 | 苏州市新诚氏电子有限公司 | High-frequency aluminum nitride 10w 18dB attenuator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361123A (en) * | 2011-09-08 | 2012-02-22 | 苏州市新诚氏电子有限公司 | 20W3dB attenuating piece of aluminium nitride ceramic substrate |
| 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 |
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2012
- 2012-06-28 CN CN2012102166604A patent/CN102723560A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361123A (en) * | 2011-09-08 | 2012-02-22 | 苏州市新诚氏电子有限公司 | 20W3dB attenuating piece of aluminium nitride ceramic substrate |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218293A (en) * | 2014-05-29 | 2014-12-17 | 苏州市新诚氏电子有限公司 | High-frequency aluminum nitride 10w 18dB attenuator |
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Application publication date: 20121010 |