CN205657154U - Coaxial power distribution unit of multisection impedance conversion radio frequency - Google Patents
Coaxial power distribution unit of multisection impedance conversion radio frequency Download PDFInfo
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- CN205657154U CN205657154U CN201620356908.0U CN201620356908U CN205657154U CN 205657154 U CN205657154 U CN 205657154U CN 201620356908 U CN201620356908 U CN 201620356908U CN 205657154 U CN205657154 U CN 205657154U
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Abstract
The utility model relates to a coaxial power distribution unit of multisection impedance conversion radio frequency, including the impedance conversion chamber, resonance bar, female first connector, inner conductor in the female first connector of impedance conversion chamber head is connected with the resonance bar head, inner conductor in the female first connector of impedance conversion chamber afterbody is connected with resonance bar afterbody side, resonance bar is equipped with a plurality of transform festival from the head to the afterbody in proper order, every transform saves isometricly and the name is the input in proper order, the first impedance conversion festival, the second impedance conversion festival, the third impedance conversion festival, the fourth impedance conversion festival, the 5th impedance conversion festival, the 6th impedance conversion festival, the 7th impedance conversion festival, the 8th impedance conversion festival, the 9th impedance conversion festival, the tenth impedance conversion festival, the 11 impedance conversion festival, the output. The utility model discloses an increase the impedance conversion joint number of festival, extend the bandwidth, the utility model discloses processing is simple, and the required precision is low, and the size subtracts the weak point to some extent, also is the cost is reduced, and is favorable to batch production.
Description
Technical field
This utility model relates to communication equipment, particularly to a kind of more piece impedance transformation radio-frequency (RF) coaxial power divider.
Background technology
Power splitter full name power divider, English name Power divider, it is a kind of a road input signal energy to be divided into two-way or the device of the equal or unequal energy of multiple-channel output, it is possible in turn multiple signals energy is synthesized a road output, now can be also referred to as combiner.Certain isolation is should ensure that between the output port of one power splitter.Power splitter is generally divided into one-to-two (two outputs of an input), one point three (three outputs of an input) etc. by output.Along with the development of mobile communication technology, high power, wide band passive device demand are increased day by day by people, and wherein high-performance radio-frequency shaft power source allotter is widely applicable due to it, and demand is the most urgent.Power divider (hereinafter referred to as power splitter) is in mobile communication system, and its effect is that a way RF power is divided into multiple-channel output by a certain percentage.In order to realize the application in broadband or ultra-wideband communications, power splitter must realize with multistage impedance conversion.Dividing with transmission line kind, power splitter is broadly divided into microstrip power divider and coaxial cavity power divider.Microstrip power divider, when impedance transformation progression is more, is the most carefully located the width of conduction band and has been near or below and can process live width, and difficulty of processing is the biggest；It addition, microstrip power divider conduction band very thin thickness, typically at about 0.03mm, this makes insertion loss increase along with frequency and become rapidly big, and therefore microstrip power divider is not suitable for high-power, the occasion of low-loss requirement.And coaxial cavity power divider is higher due to the power that can bear, and insertion loss is less, is increasingly looked at by the parent of industry.But the current commonly used multistage 1/4 wavelength impedance conversion of coaxial cavity power divider industry realizes so that product length is bigger than normal, and then causes high cost.
At present, during coaxial cavity power divider is widely used in the indoor distribution system containing the standards such as CDMA, GSM9, DCS, WCDMA, CDMA2000, TD-SCDMA, LTE, TD-LTE and WiFi.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of more piece impedance transformation radio-frequency (RF) coaxial power divider.
nullThis utility model solves its technical problem and be the technical scheme is that a kind of more piece impedance transformation radio-frequency (RF) coaxial power divider，Including impedance transformation chamber、It is co-axially located at the resonant rod of described impedance transformation intracavity、It is arranged on described impedance transformation chamber head and the female connector of impedance transformation chamber two sides of tail，Inner wire in the female connector of described impedance transformation chamber head is connected with described resonant rod head，Inner wire in the female connector of described impedance transformation chamber afterbody is connected with described resonant rod afterbody side，Described resonant rod is rearwardly sequentially provided with multiple conversion joint from head，Each conversion joint is isometric and title is followed successively by input、First impedance transformation joint、Second impedance transformation joint、3rd impedance transformation joint、4th impedance transformation joint、5th impedance transformation joint、6th impedance transformation joint、7th impedance transformation joint、8th impedance transformation joint、9th impedance transformation joint、Tenth impedance transformation joint、11st impedance transformation joint、Outfan，The a diameter of 8.4mm of input,First impedance transformation saves a diameter of 4mm,Second impedance transformation saves a diameter of 8.2mm,3rd impedance transformation saves a diameter of 8.6mm,4th impedance transformation saves a diameter of 4.6mm,5th impedance transformation saves a diameter of 9.7mm,6th impedance transformation saves a diameter of 6mm,7th impedance transformation saves a diameter of 8.8mm,8th impedance transformation saves a diameter of 9.4mm,9th impedance transformation saves a diameter of 5.6mm,Tenth impedance transformation saves a diameter of 10.8mm,11st impedance transformation saves a diameter of 7.2mm,The a diameter of 5.8mm of outfan.
More piece 1/4th impedance transformation joint is cut into multiple shorter impedance transformation joint the most often joint size between 1/8th wavelength by above-mentioned design, so on the premise of not increasing conversion joint length, by increasing the joint number of impedance transformation joint, thus reach to expand the purpose of bandwidth.For transition line conversion joint, the present invention processes simply, and required precision is low；For traditional more piece 1/4th impedance transformation joint, size of the present invention has shortened, namely reduces cost, and is conducive to batch production.
As the further improvement of the design, each described conversion joint length is 10.5mm.
As the further improvement of the design, described impedance transformation chamber afterbody is provided with sprue, prevents leaky wave.
As the further improvement of the design, described sprue and female connector are equipped with silica gel sealing ring, corona resistance with junction, described impedance transformation chamber, and arc resistance, high-low temperature resistant, ageing-resistant performance are good, resistance to elevated temperatures.
The beneficial effects of the utility model are: more piece 1/4th impedance transformation joint is cut into multiple shorter impedance transformation joint the most often joint size between 1/8th wavelength by this utility model design, so on the premise of not increasing conversion joint length, by increasing the joint number of impedance transformation joint, thus reach to expand the purpose of bandwidth.For transition line conversion joint, the present invention processes simply, and required precision is low；For traditional more piece 1/4th impedance transformation joint, size of the present invention has shortened, namely reduces cost, and is conducive to batch production.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is resonant rod structural representation of the present utility model.
1. impedance transformation chamber, 2. resonant rod, 3. silica gel sealing ring, 4. sprue in the drawings, 5. female connector, 6. input, 7. the first impedance transformation joint, 8. the second impedance transformation joint, 9. the 3rd impedance transformation joint, 10. the 4th impedance transformation joint, 11. the 5th impedance transformation joints, 12. the 6th impedance transformation joints, 13. the 7th impedance transformation joints, 14. the 8th impedance transformation joints, 15. the 9th impedance transformation joints, 16. the tenth impedance transformation joints, 17. the 11st impedance transformation joints, 18. outfans, 19. inner wires.
Detailed description of the invention
Describe this utility model, illustrative examples therein and explanation in detail below in conjunction with accompanying drawing and specific embodiment to be only used for explaining this utility model, but be not intended as restriction of the present utility model.
nullEmbodiment: a kind of more piece impedance transformation radio-frequency (RF) coaxial power divider，Including impedance transformation chamber 1、It is co-axially located at the resonant rod 2 in described impedance transformation chamber 1、It is arranged on described impedance transformation chamber 1 head and the female connector 5 of impedance transformation chamber 1 two sides of tail，Inner wire 19 in the female connector 5 of described impedance transformation chamber 1 head is connected with described resonant rod 2 head，Inner wire 19 in the female connector 5 of described impedance transformation chamber 1 afterbody is connected with described resonant rod 2 afterbody side，Described resonant rod 2 is rearwardly sequentially provided with multiple conversion joint from head，Each conversion joint is isometric and title is followed successively by input 6、First impedance transformation joint 7、Second impedance transformation joint 8、3rd impedance transformation joint 9、4th impedance transformation joint 10、5th impedance transformation joint 11、6th impedance transformation joint 12、7th impedance transformation joint 13、8th impedance transformation joint 14、9th impedance transformation joint 15、Tenth impedance transformation joint 16、11st impedance transformation joint 17、Outfan 18，The a diameter of 8.4mm of input 6,First impedance transformation saves 7 a diameter of 4mm,
Second impedance transformation saves 8 a diameter of 8.2mm, and the 3rd impedance transformation saves 9 a diameter of 8.6mm, and the 4th impedance transformation saves 10 a diameter of 4.6mm, and the 5th impedance transformation saves 11 a diameter of 9.7mm,
6th impedance transformation saves 12 a diameter of 6mm, and the 7th impedance transformation saves 13 a diameter of 8.8mm, and the 8th impedance transformation saves 14 a diameter of 9.4mm, and the 9th impedance transformation saves 15 a diameter of 5.6mm,
Tenth impedance transformation saves 16 a diameter of 10.8mm, and the 11st impedance transformation saves 17 a diameter of 7.2mm, a diameter of 5.8mm of outfan 18.Actual measurement model machine standing wave VSWR≤1.2, Insertion Loss IR≤3.2, third order intermodulation PIM3≤-160dBc.
More piece 1/4th impedance transformation joint is cut into multiple shorter impedance transformation joint the most often joint size between 1/8th wavelength by above-mentioned design, so on the premise of not increasing conversion joint length, by increasing the joint number of impedance transformation joint, thus reach to expand the purpose of bandwidth.For transition line conversion joint, the present invention processes simply, and required precision is low；For traditional more piece 1/4th impedance transformation joint, size of the present invention has shortened, namely reduces cost, and is conducive to batch production.
As the further improvement of the design, each described conversion joint length is 10.5mm.
As the further improvement of the design, described impedance transformation chamber 1 afterbody is provided with sprue 4, prevents leaky wave.
As the further improvement of the design, described sprue 4 and female connector 5 are equipped with silica gel sealing ring 3, corona resistance with junction, described impedance transformation chamber 1, and arc resistance, high-low temperature resistant, ageing-resistant performance are good, resistance to elevated temperatures.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (4)
- null1. a more piece impedance transformation radio-frequency (RF) coaxial power divider，Including impedance transformation chamber、It is co-axially located at the resonant rod of described impedance transformation intracavity、It is arranged on described impedance transformation chamber head and the female connector of impedance transformation chamber two sides of tail，Inner wire in the female connector of described impedance transformation chamber head is connected with described resonant rod head，Inner wire in the female connector of described impedance transformation chamber afterbody is connected with described resonant rod afterbody side，It is characterized in that，Described resonant rod is rearwardly sequentially provided with multiple conversion joint from head，Each conversion joint is isometric and title is followed successively by input、First impedance transformation joint、Second impedance transformation joint、3rd impedance transformation joint、4th impedance transformation joint、5th impedance transformation joint、6th impedance transformation joint、7th impedance transformation joint、8th impedance transformation joint、9th impedance transformation joint、Tenth impedance transformation joint、11st impedance transformation joint、Outfan，The a diameter of 8.4mm of input,First impedance transformation saves a diameter of 4mm,Second impedance transformation saves a diameter of 8.2mm,3rd impedance transformation saves a diameter of 8.6mm,4th impedance transformation saves a diameter of 4.6mm,5th impedance transformation saves a diameter of 9.7mm,6th impedance transformation saves a diameter of 6mm,7th impedance transformation saves a diameter of 8.8mm,8th impedance transformation saves a diameter of 9.4mm,9th impedance transformation saves a diameter of 5.6mm,Tenth impedance transformation saves a diameter of 10.8mm,11st impedance transformation saves a diameter of 7.2mm,The a diameter of 5.8mm of outfan.
- A kind of more piece impedance transformation radio-frequency (RF) coaxial power divider the most according to claim 1, is characterized in that, each described conversion joint length is 10.5mm.
- A kind of more piece impedance transformation radio-frequency (RF) coaxial power divider the most according to claim 1, is characterized in that, described impedance transformation chamber afterbody is provided with sprue.
- A kind of more piece impedance transformation radio-frequency (RF) coaxial power divider the most according to claim 3, is characterized in that, described sprue and female connector are equipped with silica gel sealing ring with junction, described impedance transformation chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620356908.0U CN205657154U (en) | 2016-04-26 | 2016-04-26 | Coaxial power distribution unit of multisection impedance conversion radio frequency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620356908.0U CN205657154U (en) | 2016-04-26 | 2016-04-26 | Coaxial power distribution unit of multisection impedance conversion radio frequency |
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| CN205657154U true CN205657154U (en) | 2016-10-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591603A (en) * | 2017-09-30 | 2018-01-16 | 合肥威科电子技术有限公司 | A kind of broadband coaxial power splitter branched structure |
| CN107834142A (en) * | 2017-09-18 | 2018-03-23 | 合肥邦连电子科技有限公司 | Multi-ladder complex impedance matching miniaturization power splitter and its design method |
| 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 |
-
2016
- 2016-04-26 CN CN201620356908.0U patent/CN205657154U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834142A (en) * | 2017-09-18 | 2018-03-23 | 合肥邦连电子科技有限公司 | Multi-ladder complex impedance matching miniaturization power splitter and its design method |
| CN107834142B (en) * | 2017-09-18 | 2021-05-25 | 合肥邦连电子科技有限公司 | Multi-step complex impedance matching miniaturized power divider and design method thereof |
| CN107591603A (en) * | 2017-09-30 | 2018-01-16 | 合肥威科电子技术有限公司 | A kind of broadband coaxial power splitter branched structure |
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161019 Termination date: 20190426 |