CN102738546A - 30-Watt 9dB attenuator - Google Patents
30-Watt 9dB attenuator Download PDFInfo
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- CN102738546A CN102738546A CN 201210218500 CN201210218500A CN102738546A CN 102738546 A CN102738546 A CN 102738546A CN 201210218500 CN201210218500 CN 201210218500 CN 201210218500 A CN201210218500 A CN 201210218500A CN 102738546 A CN102738546 A CN 102738546A
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- aluminium nitride
- nitride substrate
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Abstract
The invention discloses a 30-Watt 9dB attenuator. The attenuator comprises an aluminum nitride substrate which has high thick film property, wherein four thick film pastes, namely a conductor paste, a film resistor paste, a resistor protective film paste and a circuit protection paste are printed on the front side of the aluminum nitride substrate; the conductor paste is specifically arranged to achieve high standing wave property; and an accurate attenuation value is obtained by accurately controlling the resistance values of film resistors. By utilizing the attenuator, various performance indexes are fully considered in the scheme design, and the attenuator is high-frequency and free of induction so as to break through the situation that the original attenuator can only be applied to low frequency; and therefore, the application requirement of a third generation (3G) network at present can be met, and the series production lines of 30-Watt fixed resistor attenuators can be extended.
Description
Technical field
The present invention relates to a kind of attenuator, the attenuator of particularly a kind of 30 watts of 9dB.
Background technology
Present most of communication base station all is that utilizing high power pottery carrier sheet absorbs reverse input power in the communication component; High-power ceramic carrier sheet then 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.The attenuator of having gathered three kinds of resistive arrangement not only can absorb the power of reverse input in the communication component and on high-frequency circuit, adjust power level in communication base station, decouple, and relevant device has been played protective effect.
Because aluminium nitride ceramics still belongs to emerging industry, so on product line, do not present diversified general layout.Its attenuation accuracy of attenuator that exists on the market simultaneously can only accomplish that mostly minority can be accomplished 2G in the 1G frequency, and the difficult control of the VSWR of attenuation accuracy and equipment configuration.And market is very high to the requirement of attenuation accuracy, and 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.Attenuator in the market is when using frequency range to be higher than 2G, and its attenuation accuracy does not reach requirement, and it is big that return loss becomes, and has satisfied not the above frequency range application requirements of 2G.
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 9 ± 0.5dB in the 3G frequency range with interior attenuation accuracy; Standing wave requires input in 1.2, and output can satisfy 30 watts of 9dB attenuators of the application requirements of present 3G network in 1.25.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of 30 watts of 9dB attenuators, it is characterized in that: it comprises an aluminium nitride substrate, said aluminium nitride substrate has good thick film characteristic; The front printing 4 heavy thick film inks of said aluminium nitride substrate; Said thick film ink is respectively conductor paste, membranaceous resistance slurry, resistance protection film slurry; The circuit protection slurry; Said lead slurry obtains good stationary wave characteristic through specific arranging, and said membranaceous resistance obtains pad value accurately through accurate resistance control. and the output of said attenuator circuit, input are connected with a pad respectively, and said two pads are along the center line symmetry of said aluminium nitride substrate.
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: 30 watts of 9dB attenuators of this aluminium nitride ceramics substrate are in a state of symmetry fully by attenuator circuit; 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; Also having reduced the client causes 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, and increased power capacity, enlarged the scope of product line; Also break the situation that original attenuator can only be applied to low frequency, made attenuator can be applied to the network of 2G-3G.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; These 30 watts of 9dB attenuators comprise an aluminium nitride substrate 1; 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 membranaceous 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.This attenuator circuit is along the center line symmetry of aluminium nitride substrate, and the output of attenuator circuit is connected with a pad 5, and input is connected with a pad 6, and two pads 5,6 are symmetrical along the center line of aluminium nitride substrate.Resistance R 1, R2, the last resistance protection film 3 that is printed with of R3, the upper surface of lead 2 and resistance protection film 3 also is printed with one deck circuit protection film 4, can form protection to lead 2 and resistance R 1, R2, R3 like this.
It is 50 ± 1.5 Ω that these 30 watts of 9dB attenuators 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,
These 30 watts of 9dB attenuators are in a state of symmetry fully by attenuator circuit; 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; Also having reduced the client causes 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, and increased power capacity, enlarged the scope of product line; Also break the situation that original attenuator can only be applied to low frequency, made attenuator can be applied to the network of 2G-3G.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 a kind of 30 watts of 9dB attenuators that the embodiment of the invention provided have 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. 30 watts of 9dB attenuators, it is characterized in that: it comprises an aluminium nitride substrate, said aluminium nitride substrate has good thick film characteristic; The front printing 4 heavy thick film inks of said aluminium nitride substrate; Said thick film ink is respectively conductor paste, membranaceous resistance slurry, resistance protection film slurry; The circuit protection slurry; Said lead slurry obtains good stationary wave characteristic through specific arranging, and said membranaceous resistance obtains pad value accurately through accurate resistance control. and the output of said attenuator circuit, input are connected with a pad respectively, and said two pads are along the center line symmetry of said aluminium nitride substrate.
2. 30 watts of 9dB attenuators of aluminium nitride ceramics substrate according to claim 1, it is characterized in that: the output of said attenuator circuit, input are connected with a pad respectively, and said two pads are along the center line symmetry of said aluminium nitride substrate.
3. 30 watts of 9dB attenuators of aluminium nitride ceramics substrate according to claim 1 is characterized in that: said lead need adopt high temperature sintering to make the ceramic substrate metallization form circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210218500 CN102738546A (en) | 2012-06-29 | 2012-06-29 | 30-Watt 9dB attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210218500 CN102738546A (en) | 2012-06-29 | 2012-06-29 | 30-Watt 9dB attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102738546A true CN102738546A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210218500 Pending CN102738546A (en) | 2012-06-29 | 2012-06-29 | 30-Watt 9dB attenuator |
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| CN (1) | CN102738546A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218283A (en) * | 2014-05-28 | 2014-12-17 | 苏州市新诚氏电子有限公司 | High-frequency high-precision aluminum nitride ceramic 10w 1dB attenuator |
| CN104218291A (en) * | 2014-05-29 | 2014-12-17 | 苏州市新诚氏电子有限公司 | Low-expansion-factor aluminum-nitride 10W-28dB attenuation piece |
| CN104241775A (en) * | 2014-05-29 | 2014-12-24 | 苏州市新诚氏电子有限公司 | Low-dielectric-loss 10 W-30 dB attenuation slice |
-
2012
- 2012-06-29 CN CN 201210218500 patent/CN102738546A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218283A (en) * | 2014-05-28 | 2014-12-17 | 苏州市新诚氏电子有限公司 | High-frequency high-precision aluminum nitride ceramic 10w 1dB attenuator |
| CN104218291A (en) * | 2014-05-29 | 2014-12-17 | 苏州市新诚氏电子有限公司 | Low-expansion-factor aluminum-nitride 10W-28dB attenuation piece |
| CN104241775A (en) * | 2014-05-29 | 2014-12-24 | 苏州市新诚氏电子有限公司 | Low-dielectric-loss 10 W-30 dB attenuation slice |
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Application publication date: 20121017 |