CN206412453U - A kind of cavity 3DB electric bridges - Google Patents
A kind of cavity 3DB electric bridges Download PDFInfo
- Publication number
- CN206412453U CN206412453U CN201720131949.4U CN201720131949U CN206412453U CN 206412453 U CN206412453 U CN 206412453U CN 201720131949 U CN201720131949 U CN 201720131949U CN 206412453 U CN206412453 U CN 206412453U
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- cavity
- rod
- section
- electric bridges
- connector
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Abstract
The utility model discloses a kind of cavity 3DB electric bridges, including cavity, cavity side is provided with two the first connectors, opposite side is provided with two the second connectors, inside cavity is welded with two inner wires, cavity is divided into symmetrical four ports, port is made up of a diameter of 4.2mm through hole pit, on mating connector insertion cavity, the utility model can realize the 800 2700MHz full frequency band network coverages, indoor and outdoor can be used, and product power is high, small, low intermodulation is lost, and meets three big Carrier Requirements.
Description
Technical field
The utility model is related to mobile communication all-channel technical field, specially a kind of cavity 3DB electric bridges.
Background technology
3DB electric bridges are also same frequency combiner, and it can continuously take along along a certain determination direction of transmission line to transimission power
One input signal, can be divided into two constant amplitude and the signals with 90 ° of phase differences each other by sample.It is mainly used in multi signal combining,
The utilization rate of output signal is improved, extensively using the combining in indoor covering system to base station signal, in this place with effect
Fruit is very well.3DB bridge Insertion Loss is 3.2, and isolation is also 25, and standing wave is general.But have two delivery outlets, such as input one it is 30 defeated
Go out is exactly two 27.The delivery outlet of 3dB electric bridges also can arbitrarily be determined, Two In and One Out, One In and Two Out, Two In and Two Out, in fact can,
A many mouths connect the load of enough power just.Not not connecing namely dispatching from the factory with regard to disconnecting in fact for load, with separately connecing negative
Carry different effect.But, it can only use 3dB when requiring high for standing-wave ratio.In addition, it is also contemplated that device is held
By power.Two work(point, 3dB electric bridges and combiner；Combiner:For frequency-selecting combiner, to filter multiplexed fashion work, two are can be achieved
Road above signal synthesis, can realize that high isolation is synthesized, be mainly used in the combining of different frequency range, it is possible to provide minimum between different system
Interference.Insertion Loss is minimum, and preferably, frequency band isolation is maximum for Out-of-band rejection, and different system equipment combining input and output must use this,
3dB electric bridges：It for same frequency combining, can only realize that two paths of signals is synthesized, isolation is relatively low, the output of two-way constant amplitude can be achieved, it is also most
It is expensive.Power splitter：For same frequency combining, multichannel synthesis can be achieved, isolation is relatively low, can only provide and export all the way.
With the development of LTE, 4G network, including China Telecom, CHINAUNICOM 4G network coverages engineering are also in acceleration hair
Exhibition, operator is more and more to the demand of passive device, and quantity is continuously increased, and 3DB electric bridges are the indispensable devices of room subsystem
Part, as existing network is increasing to room point device power ability to bear demand, under many scenes, micro-strip device can not be met will
Ask, operator is higher to product requirement, high-power, Insertion Loss is small, the index such as low intermodulation, can be met with cavity 3DB electric bridges will
Ask.
Utility model content
The purpose of this utility model is to provide a kind of cavity 3DB electric bridges, with asking for solving to propose in above-mentioned background technology
Topic.
To achieve the above object, the utility model provides following technical scheme：A kind of cavity 3DB electric bridges, including cavity, institute
Cavity side is stated provided with two the first connectors, opposite side is welded with two provided with two the second connectors, the inside cavity
Inner wire, the cavity is divided into symmetrical four ports, and port is made up of a diameter of 4.2mm through hole pit, coordinates and connects
Connect on device insertion cavity, through hole centre bore to cavity back gauge is 16mm.
It is preferred that, first connector, the second connector are 8-24UNEF-2A type Female head thread joints, even
Connect device and be externally provided with filled polytetrafluoroethylene medium in a draw pin, the connector.
It is preferred that, two inner wires are put into cavity, two inner wire mirror image juxtapositions, the inner wire two ends point
Lian Jie not the outer draw pin of connector.
It is preferred that, the inner wire is made up of four section rods, respectively first segment rod, second section rod, Section of three rod, Section four
Rod, a length of 11.95mm of the first segment rod, a width of 4.93mm；A length of 36.1mm of the second section rod, a width of 4.2mm；Institute
State a length of 38.2mm of Section of three rod, a width of 4.5mm；Section four, a length of 12.32mm, a width of 5.42mm of the rod.
It is preferred that, the inside cavity side, which has in a circle capillary groove, the capillary groove, is provided with sealing ring.
Compared with prior art, the beneficial effects of the utility model are：The utility model can realize that 800-2700MHz is complete
Frequency band network is covered, and indoor and outdoor can be used, and product power is high, small, low intermodulation is lost, and meets three big Carrier Requirements；Separately
Outer using screw mode installs connector is beaten, it is necessary to weld, matching requirements are high, but the product index surplus worked it out is big, especially
In terms of being Insertion Loss and intermodulation, improve larger, degree of protection can reach IP65.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is inner conductor structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of cavity 3DB electric bridges, including cavity 1, cavity
1 internal edges, which have, is provided with sealing ring in a circle capillary groove, the capillary groove, waterproof groove width 1.3mm, deep 1.2mm；The cavity 1
Side is provided with two the first connectors 2, and opposite side is provided with two the second connectors 3, and the internal welding of cavity 1, which is connected in two, leads
Body 4,1 point of the cavity is symmetrical four ports 9, and port is made up of a diameter of 4.2mm through hole pit, is connected
On device insertion cavity 1, through hole centre bore to the back gauge of cavity 1 is 16mm.
In the present embodiment, the first connector 2, the second connector 3 are 8-24UNEF-2A type Female head thread joints,
Connector is externally provided with filled polytetrafluoroethylene medium in a draw pin, the connector, is easy to fix contact pin, stabilizes it.Even
Device 2 is connect for input port, connector 3 is output port, input and output port is interchangeable, i.e., connector 2 is output port, that
Connector 3 is just as input port, and port, which is exchanged, to provide great convenience to project installation.
In the present embodiment, two inner wires 4 are put into cavity 1, two mirror image juxtapositions of inner wire 4,4 liang of the inner wire
End connects the outer draw pin of connector respectively；Inner wire 4 is made up of four section rods, respectively first segment rod 5, second section rod 6, Section of three rod
7th, Section of four rod 8, a length of 11.95mm of the first segment rod 5, a width of 4.93mm；A length of 36.1mm of the second section rod 6,
A width of 4.2mm；Section three, a length of 38.2mm, a width of 4.5mm of the rod 7；Section four, a length of 12.32mm of the rod 8, it is a width of
5.42mm。
The utility model can realize the 800-2700MHz full frequency band network coverages, and indoor and outdoor can be used, product power
High, small, the low intermodulation of loss, meets three big Carrier Requirements；In addition using screw mode installs connector is beaten, it is necessary to weld, fill
With requiring high, but the product index surplus worked it out is big, particularly in terms of Insertion Loss and intermodulation, improves larger, degree of protection is reachable
To IP65.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of cavity 3DB electric bridges, including cavity (1), it is characterised in that：Cavity (1) side is provided with two first connections
Device (2), opposite side is connected to two inner wires (4), the cavity provided with two the second connectors (3), cavity (1) internal welding
(1) it is divided into symmetrical four ports (9), port is made up of a diameter of 4.2mm through hole pit, mating connector insertion chamber
On body (1), through hole centre bore to cavity (1) back gauge is 16mm.
2. a kind of cavity 3DB electric bridges according to claim 1, it is characterised in that：First connector (2), second connect
It is 8-24UNEF-2A type Female head thread joints to connect device (3), and connector is externally provided with a draw pin, the connector and filled
PTFE medium.
3. a kind of cavity 3DB electric bridges according to claim 2, it is characterised in that：Two the inner wire (4) is put into cavity
(1), two inner wire (4) mirror image juxtapositions, inner wire (4) two ends connect the outer draw pin of connector respectively.
4. a kind of cavity 3DB electric bridges according to claim 1, it is characterised in that：The inner wire (4) is by four section rod groups
Into respectively first segment rod (5), second section rod (6), Section of three rod (7), Section of four rod (8), the length of the first segment rod (5)
For 11.95mm, a width of 4.93mm；The a length of 36.1mm, a width of 4.2mm of the second section rod (6)；Section three, the rod (7)
A length of 38.2mm, a width of 4.5mm；Section four, a length of 12.32mm, a width of 5.42mm of the rod (8).
5. a kind of cavity 3DB electric bridges according to claim 1, it is characterised in that：Cavity (1) internal edges have a circle to prevent
Sealing ring is installed in tank, the capillary groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720131949.4U CN206412453U (en) | 2017-02-14 | 2017-02-14 | A kind of cavity 3DB electric bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720131949.4U CN206412453U (en) | 2017-02-14 | 2017-02-14 | A kind of cavity 3DB electric bridges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206412453U true CN206412453U (en) | 2017-08-15 |
Family
ID=59558064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720131949.4U Expired - Fee Related CN206412453U (en) | 2017-02-14 | 2017-02-14 | A kind of cavity 3DB electric bridges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206412453U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134174A (en) * | 2017-11-17 | 2018-06-08 | 江苏亚信电子科技有限公司 | A kind of wideband electrical bridge optimization system |
| CN113394531A (en) * | 2021-06-29 | 2021-09-14 | 江苏贝孚德通讯科技股份有限公司 | Same-frequency combiner compatible with 5G frequency band |
-
2017
- 2017-02-14 CN CN201720131949.4U patent/CN206412453U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134174A (en) * | 2017-11-17 | 2018-06-08 | 江苏亚信电子科技有限公司 | A kind of wideband electrical bridge optimization system |
| CN113394531A (en) * | 2021-06-29 | 2021-09-14 | 江苏贝孚德通讯科技股份有限公司 | Same-frequency combiner compatible with 5G frequency band |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170815 Termination date: 20210214 |