CN201360032Y - A short-stair coaxial power divider of impedance variable cavity - Google Patents
A short-stair coaxial power divider of impedance variable cavity Download PDFInfo
- Publication number
- CN201360032Y CN201360032Y CNU2009201432774U CN200920143277U CN201360032Y CN 201360032 Y CN201360032 Y CN 201360032Y CN U2009201432774 U CNU2009201432774 U CN U2009201432774U CN 200920143277 U CN200920143277 U CN 200920143277U CN 201360032 Y CN201360032 Y CN 201360032Y
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- impedance
- coaxial power
- short
- impedance variable
- power divider
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Abstract
The utility model discloses a short-stair coaxial power divider of an impedance variable cavity, which is characterized in that an inner conductor is a straight rod, the inner side wall of an outer shell is arranged to be a step reducing structure; and the periphery of the straight rod type inner conductor and the step reducing inner side wall of the outer shell form an impedance variable cavity with various impedance transforming sections. The short-stair coaxial power divider of the impedance variable cavity is greatly easy to process, and can reduce material waste, effectively reduce the weight of products and shorten the length of products.
Description
Technical field
The utility model relates to signal Transmission Microwave device, a kind of coaxial power splitter of more specifically saying so.
Background technology
Coaxial power splitter is widely applied in technical fields such as microwave communication, electronic countermeasures and radars as a kind of signal Transmission Microwave device commonly used.
Coaxial power splitter in the prior art is the version that inner wire is set to step reducing impedance conversion as shown in Figure 1, and mainly there are the following problems for this version:
1, in the excessive structure of design impedance conversion, owing to adopt step inner wire 11, its high low-impedance line gap is bigger, the waste that difficulty of processing is very big, also bring material;
2, when frequency is on the low side, volume is excessive, cost is high because of wavelength causes than length.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, and the impedance of providing a kind of and can greatly be easy to process, waste of material is few, can alleviates product weight effectively, shortens product length becomes the coaxial power splitter of short ladder in chamber.
The utility model technical solution problem adopts following technical scheme:
The design feature that the utility model impedance becomes the coaxial power splitter of short ladder in chamber is inner wire to be set be straight rod, the madial wall that external shell is set is the step variable-diameter structure, forms the impedance change chamber with each impedance conversion joint with the periphery of described straight bar type inner wire and the step reducing madial wall of external shell.
Design feature of the present utility model is that also the length of described each impedance conversion joint is taken as 1/16 of centre frequency corresponding wavelength.
It is the cavity-variable type impedance transformer that impedance becomes the chamber, and a cavity-variable type impedance transformer is made up of a plurality of impedance conversion joints.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model inner wire is set to rod always, directly processes with lathe, can greatly improve working (machining) efficiency, and its step effect is little, in light weight, cost is low, favourable production in enormous quantities.
2, the utility model can be realized by the mode of opening compression mod for the processing of external shell, can solve the problem of the fine finishining inconvenience that the cavity reducing brings thus, open the pressing mold casting simultaneously and compare with Metal Cutting fine finishining and can save nearly half cavity material.
3, the utility model can shorten by the matching way of short ladder height impedance variation product size, further reduce cost.The matching way of weak point ladder height impedance variation is compared with the matching way of general ladder height impedance variation, the impedance conversion joint length of the former impedance transformer be taken as the centre frequency corresponding wavelength 1/16 or shorter, the impedance conversion joint length of latter's impedance transformer is taken as 1/4 of centre frequency corresponding wavelength.
Description of drawings
Fig. 1 is the inner wire structural representation in the prior art.
Fig. 2 is the utility model structural representation.
Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
Number in the figure: 11 step inner wires, 1 straight bar type inner wire, 2 external shells.
Embodiment
Referring to Fig. 2, it is straight rod that present embodiment setting is provided with inner wire 1, and the madial wall that external shell 2 is set is the step variable-diameter structure, forms the impedance change chamber with each impedance conversion joint with the periphery of straight bar type inner wire 1 and the step reducing madial wall of external shell 2.
In concrete the enforcement, straight bar type inner wire 1 can directly be processed with lathe, and external shell 2 is to open the mode machine-shaping of compression mod.
In concrete the enforcement, present embodiment can adopt the match circuit of short ladder height impedance conversion to substitute conventional 1/4 wavelength shifter coupling on the implementation of circuit structure.The length of each impedance conversion joint is taken as 1/16 of centre frequency corresponding wavelength, in concrete the enforcement, for the ease of processing, suitably adjust the length of each impedance conversion joint, to satisfy the requirement of system impedance coupling, though the joint number of the institute's impedance conversion of getting joint is omited many, but entire length can shorten dramatically, coaxial power splitter with 0.8GHz-2.5GHz is an example, carries out circuit arrangement in such a way, is realizing that product can shorten 40mm than prior art under the identical bandwidth condition on length.
Claims (2)
1, impedance becomes the coaxial power splitter of short ladder in chamber, it is characterized in that being provided with inner wire (1) and be straight rod, the madial wall that external shell (2) is set is the step variable-diameter structure, forms the impedance change chamber with each impedance conversion joint with the periphery of described straight bar type inner wire (1) and the step reducing madial wall of external shell (2).
2, impedance according to claim 1 becomes the coaxial power splitter of short ladder in chamber, it is characterized in that the length of described each impedance conversion joint is taken as 1/16 of centre frequency corresponding wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201432774U CN201360032Y (en) | 2009-03-09 | 2009-03-09 | A short-stair coaxial power divider of impedance variable cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201432774U CN201360032Y (en) | 2009-03-09 | 2009-03-09 | A short-stair coaxial power divider of impedance variable cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201360032Y true CN201360032Y (en) | 2009-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201432774U Expired - Fee Related CN201360032Y (en) | 2009-03-09 | 2009-03-09 | A short-stair coaxial power divider of impedance variable cavity |
Country Status (1)
| Country | Link |
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| CN (1) | CN201360032Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794930B (en) * | 2010-01-07 | 2014-04-16 | 东莞市苏普尔电子科技有限公司 | Realization method for controlling signal shunting and novel power divider structure |
| CN104836005A (en) * | 2015-05-15 | 2015-08-12 | 广东盛路通信科技股份有限公司 | Miniaturized coaxial cavity power splitter |
| CN108206321A (en) * | 2018-01-15 | 2018-06-26 | 南京福客通信设备有限公司 | A kind of coaxial power splitter of ultra wide band |
| CN117497985A (en) * | 2023-12-29 | 2024-02-02 | 南京纳特通信电子有限公司 | Compact coaxial multipath power synthesizer and manufacturing method thereof |
-
2009
- 2009-03-09 CN CNU2009201432774U patent/CN201360032Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794930B (en) * | 2010-01-07 | 2014-04-16 | 东莞市苏普尔电子科技有限公司 | Realization method for controlling signal shunting and novel power divider structure |
| CN104836005A (en) * | 2015-05-15 | 2015-08-12 | 广东盛路通信科技股份有限公司 | Miniaturized coaxial cavity power splitter |
| CN108206321A (en) * | 2018-01-15 | 2018-06-26 | 南京福客通信设备有限公司 | A kind of coaxial power splitter of ultra wide band |
| CN117497985A (en) * | 2023-12-29 | 2024-02-02 | 南京纳特通信电子有限公司 | Compact coaxial multipath power synthesizer and manufacturing method thereof |
| CN117497985B (en) * | 2023-12-29 | 2024-03-29 | 南京纳特通信电子有限公司 | Compact coaxial multipath power synthesizer and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20180309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |