CN102820506A - High-power coaxial fixed attenuator - Google Patents
High-power coaxial fixed attenuator Download PDFInfo
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- CN102820506A CN102820506A CN2011101537922A CN201110153792A CN102820506A CN 102820506 A CN102820506 A CN 102820506A CN 2011101537922 A CN2011101537922 A CN 2011101537922A CN 201110153792 A CN201110153792 A CN 201110153792A CN 102820506 A CN102820506 A CN 102820506A
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- attenuator
- inner wire
- coaxial fixed
- disjunctor
- shell
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- 239000012212 insulator Substances 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 4
- 230000019491 signal transduction Effects 0.000 claims description 3
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 claims description 2
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 abstract 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 abstract 3
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The invention discloses a high-power coaxial fixed attenuator which mainly comprises an SMA (shape memory alloy) female joint, an SMA male joint and an attenuator cavity. The cavity comprises radiators, two core cavities, two attenuation slices, ground clamps and a connector; the male joint comprises a swivel nut, a clamp ring, a male shell, an insulator, a male inner conductor, a spring and a contact cap; the female joint comprises a female shell, a female inner conductor, an insulator, a spring and a contact cap; and the connector comprises a connector inner conductor, a connector shell, an insulator, a spring and a contact cap. Metal oxide is used as a substrate, and an advanced resistance technology is adopted, so that the high-power coaxial fixed attenuator is high in the power density and stable in resistance. Besides, owing to the optimally designed card-shaped attenuation slices, requirements on small standing waves and wide frequency band are met. In addition, the working frequency of the product ranges from frequency of direct current to 26.5GHz, the power capacity of the attenuator is 50W, and the high-power coaxial fixed attenuator has good and quick radiating ability and is high in burning resistance and good in mechanical stability and repeatability.
Description
Technical field
The present invention relates to the microwave passive component field, relate in particular to a kind of at the microwave coaxial fixed attenuator that in letter industry and electronic equipment and radar, uses.
Background technology
Coaxial fixed attentuator is a kind of of microwave component; Be widely used in the equipment such as microwave communication, radar; Coaxial fixed attentuator must satisfy the electric of system and mechanical performance requirement, will accomplish in batch process that simultaneously technology is simple, qualification rate is high, production cost is low.Coaxial fixed attentuator is made up of connector and attenuator, and connector comprises famale connector and male contact two parts.Generally; The coaxial fixed attentuator of accomplishing the DC-26.5GHz high frequency is very difficult; The T type thick film circuit attenuator that will adopt alumina ceramic substrate to make equally will be made the DC-26.5GHz high frequency and can bear simultaneously just difficulty more of powerful coaxial fixed attentuator.
In sum, to the defective of prior art, need a kind of high-power coaxial fixed attenuator especially, to solve the deficiency of prior art.
Summary of the invention
The object of the present invention is to provide a kind of high-power coaxial fixed attenuator multi-disc attenuator series connection and strengthen the power that area of dissipation improves attenuator, thereby realize the object of the invention.
The technical problem that the present invention solved can adopt following technical scheme to realize:
A kind of high-power coaxial fixed attenuator is characterized in that, said high-power coaxial fixed attenuator is made up of cavity, male contact and famale connector three parts; Cavity is made up of radiator, two shells, two core chambeies, two attenuators, earth clip, disjunctors; Male contact comprises swivel nut, snap ring, positive shell, insulator, positive inner wire, spring, contact cap; Famale connector comprises cloudy shell, cloudy inner wire, insulator, spring, contact cap composition; Disjunctor comprises disjunctor inner wire, conjoined outer shell, insulator, spring, contact cap.
In one embodiment of the invention, the both sides ground connection microstrip line of said two attenuators with earth clip block tightly be fixed on its groove with the core chamber of width in, through shell they are installed between male contact and disjunctor, famale connector and the disjunctor respectively.
In one embodiment of the invention, the Elastic Contact crown in said positive inner wire and the hole thereof is lived the microstrip transmission line input of attenuator, and the microstrip transmission line output is lived by the Elastic Contact crown in the disjunctor inner wire hole; The Elastic Contact crown of the disjunctor inner wire other end is lived the microstrip transmission line input of attenuator, and the microstrip transmission line output of attenuator is lived by the Elastic Contact crown in the cloudy inner wire hole.
In one embodiment of the invention, it is characterized in that the signal transduction pathway of said high-power coaxial fixed attenuator is positive inner wire-microstrip transmission line-disjunctor inner wire-microstrip line-cloudy inner wire; Five of center lines in the microstrip transmission line of two attenuators, positive inner wire, disjunctor inner wire and the cloudy inner wire are concentric.
In one embodiment of the invention; Said attenuator is through processing with thin-film technique high-frequency sputtering tantalum nitride resistance on the beryllium oxide dielectric substrate; Its characteristic impedance is 50 Ω; Frequency is up to 26.5GHz, and power capacity is up to 50W, through adopting the series connection of multi-disc attenuator and strengthening the power that area of dissipation improves attenuator.
The invention has the advantages that: through the card form attenuator of optimal design, it is little to reach standing wave, the requirement of bandwidth.The product working band is from the direct current to 26.5GHz, and power capacity 50W has well heat-sinking capability fast, and burn-out resistance is strong, good mechanical stability, good reproducibility.
Description of drawings
Fig. 1 is the external structure sketch map of a kind of high-power coaxial fixed attenuator of the present invention.
Fig. 2 is the internal structure sketch map of a kind of high-power coaxial fixed attenuator of the present invention.
Label declaration among the figure: SMA male contact 1, cavity 2, disjunctor 3, SMA famale connector 4, swivel nut 5, snap ring 6; Sun shell 7, insulator 8, positive inner wire 9, spring 10, contact cap 11, radiator 12; The 13-shell, 14-core chamber, 15-earth clip, 16-attenuator (1), 17-disjunctor inner wire; The 18-conjoined outer shell, 19-insulator, 20-attenuator (2), the cloudy shell of 21-, the cloudy inner wire of 22-.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
As depicted in figs. 1 and 2, a kind of high-power coaxial fixed attenuator of the present invention is made up of SMA famale connector 4 and SMA male contact 1 and cavity 2.Cavity 2 is made up of radiator 12, two shells 13, two core chambeies 14, attenuator (1) 16, attenuator (2) 20, earth clip 15, disjunctors 3.Disjunctor 3 is made up of disjunctor inner wire 17, conjoined outer shell 18, insulator 19, spring 10, contact cap 11.Male contact 1 comprises swivel nut 5, snap ring 6, positive shell 7, insulator 8, positive inner wire 9, spring 10, contact cap 11.Famale connector 3 comprises that cloudy shell 21, cloudy inner wire 22, insulator 8, spring 10, contact cap 11 form.
Referring to Fig. 2; Attenuator (1) 16, attenuator (2) 20 both sides ground connection microstrip lines with earth clip 15 block tightly be fixed on its groove with the core chamber 14 of width in; Through shell 13, make that they are installed between SMA male contact 1 and the disjunctor 3, between disjunctor 3 and the famale connector 4.The realization delivering path is: the Elastic Contact cap 11 in positive inner wire 9 and the hole thereof withstands the microstrip transmission line input of attenuator (1) 16, and the microstrip transmission line output is withstood by the Elastic Contact cap 11 in disjunctor inner wire 17 holes.The Elastic Contact crown of the disjunctor inner wire other end has been lived the microstrip transmission line input of attenuator (2) 20, and the microstrip transmission line output of attenuator (2) 20 is withstood by the Elastic Contact cap 11 in cloudy inner wire 22 holes.Whole signal transduction pathway is exactly: through the Elastic Contact cap from positive inner wire-microstrip transmission line-disjunctor inner wire-microstrip transmission line-cloudy inner wire.Five in the center line of the microstrip transmission line of attenuator and positive inner wire 9 and disjunctor inner wire 17 and the cloudy inner wire 22 with one heart.
Referring to Fig. 2; The ground connection microstrip line on attenuator (1) 16, attenuator (2) 20 both sides has reliably guaranteed and the contacting of core chamber 14 through earth clip 15; Core chamber 14 closely contacts with conjoined outer shell 18 and cloudy shell 21 with positive shell 7, makes attenuator (1) 16 attenuator (2) 20 reliable grounds.
To clamp attenuator about in the of (1) 16 on the ground connection microstrip line of both sides with earth clip 15 when the present invention assembles at present, and tightly insert then and make the attenuator reliable ground to be installed in the core chamber 14.Use the same method attenuator (2) 20 is contained in another core chamber 14.Mounting spring 10 and contact cap 11 in positive inner wire 9 holes; Contact cap 11 heads expose positive inner wire 9 hole surfaces during installation; And can with exert pressure with contact cap on; Make it compress into positive inner wire 9 holes, contact cap 11 heads positive inner wire 9 hole surfaces of will appearing again when not having pressure guarantee that contact cap 11 is in the flexible effect of the spring of inside.Use the same method and be installed in the cloudy inner wire hole in two holes with disjunctor inner wire 17 spring 10 and contact cap 11 to be installed.The core chamber 14 that the SMA male contact 1 that contact cap is housed is installed in shell 13 1 ends and attenuator 1 will be housed puts in the shell 13 under, and it is to be installed to load onto disjunctor to be installed 3 at the other end of shell 13.The SMA famale connector 4 of dress contact cap is contained in an end of another shell 13 and attenuator 2 core chambeies will be housed put under in the shell 13, and the shell other end is connected through disjunctor with the cavity of attenuator (1) 16, is installed in the interior completion of radiator then and prepares.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention, and under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications; All in the scope of the invention that requires to protect, the present invention requires protection range to be defined by appending claims and equivalent thereof for these variations and improvement.
Claims (5)
1. a high-power coaxial fixed attenuator is characterized in that, said high-power coaxial fixed attenuator is made up of cavity, male contact and famale connector three parts; Cavity is made up of radiator, two shells, two core chambeies, two attenuators, earth clip, disjunctors; Male contact comprises swivel nut, snap ring, positive shell, insulator, positive inner wire, spring, contact cap; Famale connector comprises cloudy shell, cloudy inner wire, insulator, spring, contact cap composition; Disjunctor comprises disjunctor inner wire, conjoined outer shell, insulator, spring, contact cap.
2. a kind of high-power coaxial fixed attenuator as claimed in claim 1; It is characterized in that; The both sides ground connection microstrip line of said two attenuators with earth clip block tightly be fixed on its groove with the core chamber of width in, through shell they are installed between male contact and disjunctor, famale connector and the disjunctor respectively.
3. a kind of high-power coaxial fixed attenuator as claimed in claim 1; It is characterized in that; Elastic Contact crown in said positive inner wire and the hole thereof is lived the microstrip transmission line input of attenuator, and the microstrip transmission line output is lived by the Elastic Contact crown in the disjunctor inner wire hole; The Elastic Contact crown of the disjunctor inner wire other end is lived the microstrip transmission line input of attenuator, and the microstrip transmission line output of attenuator is lived by the Elastic Contact crown in the cloudy inner wire hole.
4. a kind of high-power coaxial fixed attenuator as claimed in claim 1 is characterized in that, the signal transduction pathway of said high-power coaxial fixed attenuator is positive inner wire-microstrip transmission line-disjunctor inner wire-microstrip line-cloudy inner wire; Five of center lines in the microstrip transmission line of two attenuators, positive inner wire, disjunctor inner wire and the cloudy inner wire are concentric.
5. a kind of high-power coaxial fixed attenuator as claimed in claim 1; It is characterized in that; Said attenuator is through processing with thin-film technique high-frequency sputtering tantalum nitride resistance on the beryllium oxide dielectric substrate, and its characteristic impedance is 50 Ω, and frequency is up to 26.5GHz; Power capacity is up to 50W, through adopting the series connection of multi-disc attenuator and strengthening the power that area of dissipation improves attenuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110153792.2A CN102820506B (en) | 2011-06-09 | 2011-06-09 | A kind of high-power coaxial fixed attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110153792.2A CN102820506B (en) | 2011-06-09 | 2011-06-09 | A kind of high-power coaxial fixed attenuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102820506A true CN102820506A (en) | 2012-12-12 |
| CN102820506B CN102820506B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110153792.2A Active CN102820506B (en) | 2011-06-09 | 2011-06-09 | A kind of high-power coaxial fixed attenuator |
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| Country | Link |
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| CN (1) | CN102820506B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450621A (en) * | 2016-12-01 | 2017-02-22 | 中国电子科技集团公司第四十研究所 | High-frequency broadband high-power coaxial fixed attenuator |
| CN106782932A (en) * | 2016-12-28 | 2017-05-31 | 西北核技术研究所 | High gradient surface micro-strip insulator and preparation method thereof |
| CN106785281A (en) * | 2016-12-10 | 2017-05-31 | 上海华湘计算机通讯工程有限公司 | A kind of 250W power 18GHz fixed attenuators |
| EP4297179A1 (en) | 2022-06-23 | 2023-12-27 | Airbus Operations (S.A.S.) | Mounting for a signal attenuator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3005967A (en) * | 1960-04-27 | 1961-10-24 | Weinschel Eng Co Inc | Frequency-compensated coaxial attenuator |
| US5801598A (en) * | 1996-05-01 | 1998-09-01 | Stanford University | High-power RF load |
| CN101582528A (en) * | 2008-05-13 | 2009-11-18 | 上海华湘计算机通讯工程有限公司 | Pulse-resisting attenuator for high-pulse voltage system |
| CN101916900A (en) * | 2010-07-30 | 2010-12-15 | 合肥佰特微波技术有限公司 | Pellet resistor with multi-cascade attenuator circuit |
-
2011
- 2011-06-09 CN CN201110153792.2A patent/CN102820506B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3005967A (en) * | 1960-04-27 | 1961-10-24 | Weinschel Eng Co Inc | Frequency-compensated coaxial attenuator |
| US5801598A (en) * | 1996-05-01 | 1998-09-01 | Stanford University | High-power RF load |
| CN101582528A (en) * | 2008-05-13 | 2009-11-18 | 上海华湘计算机通讯工程有限公司 | Pulse-resisting attenuator for high-pulse voltage system |
| CN101916900A (en) * | 2010-07-30 | 2010-12-15 | 合肥佰特微波技术有限公司 | Pellet resistor with multi-cascade attenuator circuit |
Non-Patent Citations (1)
| Title |
|---|
| 吴强: "热仿真技术在大功率衰减器设计中的应用", 《仪器仪表学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450621A (en) * | 2016-12-01 | 2017-02-22 | 中国电子科技集团公司第四十研究所 | High-frequency broadband high-power coaxial fixed attenuator |
| CN106785281A (en) * | 2016-12-10 | 2017-05-31 | 上海华湘计算机通讯工程有限公司 | A kind of 250W power 18GHz fixed attenuators |
| CN106782932A (en) * | 2016-12-28 | 2017-05-31 | 西北核技术研究所 | High gradient surface micro-strip insulator and preparation method thereof |
| CN106782932B (en) * | 2016-12-28 | 2019-06-07 | 西北核技术研究所 | High gradient surface micro-strip insulator and preparation method thereof |
| EP4297179A1 (en) | 2022-06-23 | 2023-12-27 | Airbus Operations (S.A.S.) | Mounting for a signal attenuator |
| FR3137218A1 (en) | 2022-06-23 | 2023-12-29 | Airbus Operations (S.A.S.) | MOUNTING BRACKET FOR A SIGNAL ATTENUATOR |
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| Publication number | Publication date |
|---|---|
| CN102820506B (en) | 2016-07-06 |
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Denomination of invention: A high power coaxial fixed attenuator Effective date of registration: 20211029 Granted publication date: 20160706 Pledgee: The Bank of Shanghai branch Caohejing Limited by Share Ltd. Pledgor: SHANGHAI HUAXIANG COMPUTER COMMUNICATION ENGINEERING Co.,Ltd. Registration number: Y2021310000095 |
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Date of cancellation: 20220729 Granted publication date: 20160706 Pledgee: The Bank of Shanghai branch Caohejing Limited by Share Ltd. Pledgor: SHANGHAI HUAXIANG COMPUTER COMMUNICATION ENGINEERING Co.,Ltd. Registration number: Y2021310000095 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high-power coaxial fixed attenuator Granted publication date: 20160706 Pledgee: The Bank of Shanghai branch Caohejing Limited by Share Ltd. Pledgor: SHANGHAI HUAXIANG COMPUTER COMMUNICATION ENGINEERING Co.,Ltd. Registration number: Y2024980011676 |