CN104241765A - High-precision 100-watt 23dB attenuation plate - Google Patents
High-precision 100-watt 23dB attenuation plate Download PDFInfo
- Publication number
- CN104241765A CN104241765A CN201410231932.7A CN201410231932A CN104241765A CN 104241765 A CN104241765 A CN 104241765A CN 201410231932 A CN201410231932 A CN 201410231932A CN 104241765 A CN104241765 A CN 104241765A
- Authority
- CN
- China
- Prior art keywords
- printed
- precision
- watt
- attenuation plate
- attenuation
- 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.)
- Pending
Links
Landscapes
- Non-Reversible Transmitting Devices (AREA)
Abstract
The invention discloses a high-precision 100-watt 23dB attenuation plate. The high-precision 100-watt 23dB attenuation plate comprises an aluminum nitride substrate which is 8.9 mm long, 5.7 mm wide and 1 mm thick, a silver paste back conducting layer is printed on the back face of the aluminum nitride substrate, a silver paste wire and resistors are printed on the front face of the aluminum nitride substrate, the silver paste wire is connected with the resistors to form an attenuation circuit, the resistors are printed with a glass protecting film, the glass protecting film and the wire are printed with a first black protecting film, and the first black protecting film is printed with a dielectric layer. According to the attenuation plate, the dielectric layer is added to the first black protecting film, so the attenuation precision of the attenuation plate can be effectively improved. A substrate of a traditional 100-watt attenuation plate which is 8.9 mm long, 5.7 mm wide and 1 mm thick is made of beryllium oxide ceramic, and beryllium oxide is toxic and not environmentally friendly. The substrate of the high-precision 100-watt 23dB attenuation plate is made of aluminum nitride ceramic, so that the characteristics of the high-precision 100-watt 23dB attenuation plate meet the application requirements of a current 4G network and the requirement for high precision is met.
Description
Technical field
The present invention relates to a kind of attenuator, particularly a kind of high accuracy 100 watts of 23dB attenuators.
Background technology
Current most of communication base station is all that utilizing high power ceramic load sheet is to absorb reverse input power in communication component; high-power ceramic carrier sheet merely can only consume and absorb unnecessary power; and real-time monitoring cannot be done to the working condition of base station; cannot judge in time when base station operation breaks down, protective effect is not had to equipment.And the power that attenuator not only oppositely can input in Absorbable rod communication component in communication base station, and part signal in communication component can be extracted, base station is monitored in real time, thus available protecting is formed to equipment.
Attenuator, as a power consumption component, can not have impact to two terminal circuits, and that is it all should mate with two terminal circuits.The aluminium nitride ceramics attenuator of current domestic 100W-23dB, its attenuation accuracy not only can only accomplish that within 1G frequency, minority can accomplish 2G mostly, and the more difficult control of the VSWR of attenuation accuracy and equipment configuration, the signal that output obtains does not meet actual requirement.Particularly when attenuator uses frequency range higher than 2G, its attenuation accuracy does not often reach requirement, and return loss becomes large, can not meet the frequency range application requirement of more than 2G.And attenuator particularly 100W and the above high-power attenuator of current main flow, the good beryllium oxide ceramics of thermal conductivity of commonly using as substrate more, but beryllium oxide ceramics is poisonous, particularly can produce a large amount of beryllium oxide dust when resistance is debugged, can be in atmosphere floating, very large injury is caused to human body.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of resistance and meets 50.5 ± 3% Ω, within 3G frequency range, attenuation accuracy is 23 ± 0.8dB, standing wave requires to meet 1.20:1max in 3G frequency range, and the application that can meet current 4G network requires and can bear high accuracy 100 watts of 23dB attenuators of 100 watts of power.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of high accuracy 100 watts of 23dB attenuators; it comprises the aluminium nitride substrate of a 8.9*5.7*1MM; the back up of described aluminium nitride substrate has silver slurry back of the body conducting shell; the front of described aluminium nitride substrate is printed with silver slurry wire and resistance; described silver slurry wire connects described resistance and forms attenuator circuit; described resistance is printed with glass protection film, described glass protection film and wire are printed with the first black protective film, described first black protective film is printed with a dielectric layer.
Preferably, described silver slurry back of the body conducting shell and silver slurry wire need end ground connection to form attenuator circuit.
Preferably, described diaphragm is adopted and is formed by the printing of modified epoxy resin paste material.
Technique scheme has following beneficial effect: this attenuator is using the aluminium nitride substrate of 8.9*5.7*1MM as benchmark; first black protective film has printed additional one deck dielectric layer; effectively can improve the attenuation accuracy of attenuator like this; the aluminium nitride ceramics of environmental protection is adopted to substitute traditional beryllium oxide ceramics; meet power under same size condition while, reach the requirement of environmental protection.This attenuator, by the optimal design of circuit, improves the return loss of product, meets in 3G frequency range, and attenuation accuracy meets 23 ± 0.8dB, and input/output terminal return loss is all less than the demand that-20.83dB. meets current 4G network layout.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, this high accuracy 100 watts of 23dB attenuators comprise the aluminium nitride substrate 1 of a 8.9*5.7*1MM, the back up of aluminium nitride substrate 1 has silver slurry back of the body conducting shell, the front of aluminium nitride substrate 1 is printed with silver slurry wire 2 and resistance R1, R2, R3, R4 and R5, silver slurry wire 2 connects above-mentioned resistance R1, R2, R3, R4, R5 and forms attenuator circuit, the earth terminal of attenuator circuit is electrically connected with back of the body conducting shell by silver slurry, thus makes attenuator circuit conducting.Back of the body conducting shell, wire form by needing the conductive silver paste printing of high temperature sintering, and described resistance is formed by resistance slurry printing.
On resistance, R1, R2, R3, R4, R5 are printed with glass protection film 3, and glass protection film 3 and silver slurry wire 2 are printed with on the first black protective film 4, first black protective film 4 and are printed with a dielectric layer 6.Dielectric layer 6 is printed with on the second black protective film 5, second black protective film 5 and can prints brand and model.First black protective film, the second black protective film can play the effect of duplicate protection to attenuator circuit.
The resistance of attenuator input and ground connection is 50.5 ± 3% Ω, and the resistance of output and ground is 50.5 ± 3% Ω.Signal enters attenuator from input, from output through R1, R2, R5, R3, R4 progressively absorption to power, exports the signal required for reality from output.
This attenuator is using the aluminium nitride substrate of 8.9*5.7*1MM as benchmark; first black protective film has printed additional one deck dielectric layer; effectively can improve the attenuation accuracy of attenuator like this; the aluminium nitride ceramics of environmental protection is adopted to substitute traditional beryllium oxide ceramics; meet power under same size condition while, reach the requirement of environmental protection.This attenuator, by the optimal design of circuit, improves the return loss of product, meets in 3G frequency range, and attenuation accuracy meets 23 ± 0.8dB, and input/output terminal return loss is all less than the demand that-20.83dB. meets current 4G network layout.
Above a kind of high accuracy 100 watts of 23dB attenuators that the embodiment of the present invention provides are described in detail; for one of ordinary skill in the art; according to the thought of the embodiment of the present invention; all will change in specific embodiments and applications; in sum; this description should not be construed as limitation of the present invention, and all any changes made according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (3)
1. a high accuracy 100 watts of 23dB attenuators; it is characterized in that: it comprises the aluminium nitride substrate of a 8.9*5.7*1MM; the back up of described aluminium nitride substrate has silver slurry back of the body conducting shell; the front of described aluminium nitride substrate is printed with silver slurry wire and resistance; described silver slurry wire connects described resistance and forms attenuator circuit; described resistance is printed with glass protection film, described glass protection film and wire are printed with the first black protective film, described first black protective film is printed with a dielectric layer.
2. high accuracy according to claim 1 100 watts of 23dB attenuators, is characterized in that: described silver slurry back of the body conducting shell and silver slurry wire need end ground connection to form attenuator circuit.
3. high accuracy according to claim 1 100 watts of 23dB attenuators, is characterized in that: described silver slurry back of the body conducting shell and silver slurry wire need end ground connection to form attenuator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410231932.7A CN104241765A (en) | 2014-05-28 | 2014-05-28 | High-precision 100-watt 23dB attenuation plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410231932.7A CN104241765A (en) | 2014-05-28 | 2014-05-28 | High-precision 100-watt 23dB attenuation plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104241765A true CN104241765A (en) | 2014-12-24 |
Family
ID=52229417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410231932.7A Pending CN104241765A (en) | 2014-05-28 | 2014-05-28 | High-precision 100-watt 23dB attenuation plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104241765A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4349792A (en) * | 1978-07-14 | 1982-09-14 | Kings Electronics Co., Inc. | Pi pad attenuator |
| CN102332628A (en) * | 2011-07-22 | 2012-01-25 | 苏州市新诚氏电子有限公司 | 100-watt 30dB high-power attenuator of aluminum nitride ceramic substrate |
-
2014
- 2014-05-28 CN CN201410231932.7A patent/CN104241765A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4349792A (en) * | 1978-07-14 | 1982-09-14 | Kings Electronics Co., Inc. | Pi pad attenuator |
| CN102332628A (en) * | 2011-07-22 | 2012-01-25 | 苏州市新诚氏电子有限公司 | 100-watt 30dB high-power attenuator of aluminum nitride ceramic substrate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102290623A (en) | High-power 100W-20dB attenuator with aluminium nitride ceramic substrate | |
| CN102361123A (en) | 20W3dB attenuating piece of aluminium nitride ceramic substrate | |
| CN102332628A (en) | 100-watt 30dB high-power attenuator of aluminum nitride ceramic substrate | |
| CN202121044U (en) | Large power aluminum nitride ceramic substrate 100 watts 30 dB attenuation slice | |
| CN102361125A (en) | 20W1dB attenuating piece of aluminium nitride ceramic substrate | |
| CN102709631A (en) | 30W 13db aluminum nitride ceramic substrate attenuation slice | |
| CN102361132A (en) | Large-power 100 W-9 dB attenuation sheet with aluminum nitride ceramic substrate | |
| CN202121043U (en) | 150 tile 30 dB attenuation sheet of high power aluminum nitride ceramic substrate | |
| CN203950893U (en) | Meet the 4th generation communication need 100 watts of 3dB attenuators of aluminum nitride ceramic substrate | |
| CN203950894U (en) | Power capacity is the 8dB attenuator of 100 watts | |
| CN203950896U (en) | Decay to 100 watts of aluminum nitride attenuation sheets of 24dB | |
| CN104241765A (en) | High-precision 100-watt 23dB attenuation plate | |
| CN102723554A (en) | 1-watt 5dB attenuation piece for aluminum oxide ceramic substrate | |
| CN104241770A (en) | 8 dB attenuation piece with power capacity being 100 W | |
| CN102332630A (en) | Large-power 150-watt and 30-dB attenuation sheet for aluminum-nitride-ceramic substrate | |
| CN104218289A (en) | 4dB attenuator with 100w power capacity | |
| CN104241771A (en) | High-power 100-watt 11dB attenuation plate with aluminum nitride ceramic substrate | |
| CN104241784A (en) | Aluminum nitride ceramic substrate 100 W-6 dB attenuation slice | |
| CN104218284A (en) | High-power aluminum-nitride 100W-21dB attenuation piece | |
| CN102361120A (en) | High-power attenuator (100W-10dB) using aluminum nitride ceramic substrate | |
| CN104241776A (en) | High-power aluminum nitride ceramic substrate 100 W-25 dB attenuation slice | |
| CN104241759A (en) | 100W-7dB attenuation slice | |
| CN104241761A (en) | Aluminum nitride ceramic substrate 100-W 3-dB attenuation piece meeting fourth-generation communication requirement | |
| CN104241789A (en) | 1 dB attenuation piece with power capacity being 100 W | |
| CN104241760A (en) | 12 dB attenuation piece with power being 100 W |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |
|
| WD01 | Invention patent application deemed withdrawn after publication |