CN206340654U - Broad band low frequency directional coupler - Google Patents
Broad band low frequency directional coupler Download PDFInfo
- Publication number
- CN206340654U CN206340654U CN201621244802.8U CN201621244802U CN206340654U CN 206340654 U CN206340654 U CN 206340654U CN 201621244802 U CN201621244802 U CN 201621244802U CN 206340654 U CN206340654 U CN 206340654U
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- aluminum alloy
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Abstract
The utility model discloses a kind of broad band low frequency directional coupler, alclad alloy bulk, Male head connector and female connector, aluminum alloy body itself encloses to form a cavity, the both sides of aluminum alloy body are equipped with the U-shaped cavity coupling aperture connected with the cavity, and the both sides of aluminum alloy body are further fixed on pcb board, and fixation is fitted with multiple resistance being connected electrically on each pcb board, inductance and electric capacity, transmission line is provided with the cavity, Male head connector and female connector are separately fixed at the two ends of aluminum alloy body, and connected between Male head connector and female connector by transmission line, the MCX connectors being connected electrically are respectively and fixedly provided with each pcb board.The utility model need not complicated circuit compensation can just reach wider frequency band, while have structure-integrated, compact appearance, the high advantage of reliability.
Description
Technical field
The utility model is related to connector technique field, and in particular to a kind of broad band low frequency directional coupler.
Background technology
Low frequency directional coupler on domestic market is main with PCB or 1/4 wavelength strip line coupled signal, isolation end
Isolation is improved with the load of 50 Ohm radio frequencies, such coupler has low frequency sufficiently bulky, and weight weight is mainly used in
Moving communicating field is in the majority, and broadcast transmission needs to debug the directional coupler of different frequency, and the degree of coupling can be with the change of frequency
The degree of coupling can also change 1 double-frequency fluctuation about 3dBm or so under normal circumstances, be coupled for radio and television frequency 87-810MH
Scope is spent between 70-35DB, about 35dBm is fluctuated, so the coupler that different frequency detectings is used needs to look for corresponding factory
Family's customized production, the directional coupler replaced will not be able to use in new frequency range.
Utility model content
For the above-mentioned weak point of existing charge connector, the utility model provides a kind of electricity that need not be complicated
Road compensation can just reach wider frequency band, while structure-integrated, compact appearance, the high coupler of reliability.
To achieve the above object, the utility model provides a kind of broad band low frequency directional coupler, including aluminum alloy body, public affairs
Head connector and female connector, the aluminum alloy body itself enclose to form a cavity, and the both sides of the aluminum alloy body are equal
Both sides provided with the U-shaped cavity coupling aperture connected with the cavity, and aluminum alloy body are further fixed on pcb board, and each pcb board
Fixed be fitted with multiple resistance being connected electrically, inductance and electric capacity, the cavity is provided with transmission line, the Male head connector
The two ends of aluminum alloy body are separately fixed at female connector, and pass through transmission line between Male head connector and female connector
The MCX connectors being connected electrically are respectively and fixedly provided with connection, each pcb board.
Wherein, it is fixed on each pcb board to be fitted with the first straight-through wire, the second straight-through wire, the 3rd straight-through lead
Line, the 4th straight-through wire and the 5th straight-through wire, one end of the described first straight-through wire are straight by the first chip inductor and second
One end connection of admittance line, and second other end for leading directly to wire passes through the second chip inductor and one end of the 3rd straight-through wire connects
Connect, the other end of the 3rd straight-through wire is connected by the 3rd chip inductor with one end of the 4th straight-through wire, the 4th straight-through wire
The other end be connected by the 4th chip inductor with one end of the 5th straight-through wire.
Wherein, the other end of the described first straight-through wire is connected by the first Chip-R with pcb board, and first leads directly to and lead
The side of line is connected by the first patch capacitor with pcb board.
Wherein, the side of the described second straight-through wire is connected by the second Chip-R with pcb board, and its opposite side passes through
3rd Chip-R and the 4th Chip-R are connected with pcb board, corresponding on the pcb board of the described second straight-through wire opposite side
Fixed at position and be fitted with main coupling line.
Wherein, the described 3rd straight-through wire is connected by the 5th Chip-R with pcb board, and the 3rd Chip-R, the 4th
Chip-R and the 5th Chip-R are from top to bottom sequentially distributed.
Wherein, the described 4th straight-through wire is connected by the second patch capacitor with pcb board.
Wherein, each MCX connectors include connecting portion and multiple MCX inner cores for being fixed on connecting portion, and described the
One end of five straight-through wires is fixedly connected for coupling delivery outlet, and one of MCX inner cores by welding with coupling delivery outlet.
Wherein, one end that the Male head connector and female connector are connected with aluminum alloy body is equipped with external screw thread, and
The two ends of aluminum alloy body are equipped with internal thread, and Male head connector and female connector are threadedly coupled with aluminum alloy body respectively
Afterwards, Male head connector and female connector are separately fixed in aluminum alloy body.
Wherein, one end of the transmission line is threadedly coupled with the joint inner core of Male head connector, and its other end and female
The joint inner core threaded connection of connector, the two ends of the transmission line respectively with the joint of Male head connector and female connector
In the secondary fixation by way of welding after core threaded connection.
Wherein, the female connector is provided with the spanner screens for being easy to dismantle it.
The beneficial effects of the utility model are：Compared with prior art, the broad band low frequency orientation coupling that the utility model is provided
Clutch, main body uses aluminium alloy electric depositing process, it is ensured that also have the advantages that heat dissipation characteristics while intensity, lightweight, at some
Can normally it be used under rugged environment, service life increase, cavity coupling aperture coordinates microstrip coupled, output end using U-shaped mouth
Using device matchings such as inductance, coupling fluctuation can accomplish to be less than 1dBm, and directionality can accomplish to be more than 30dBm, forward direction and anti-
It can accomplish ± 0.1dBm to the degree of coupling on both sides, reliable accuracy guarantee is provided for later stage sampling and analysis of signal.
Brief description of the drawings
Fig. 1 is the explosive view of broad band low frequency directional coupler of the present utility model；
Fig. 2 is the structure chart after Fig. 1 is assembled；
Fig. 3 is the profile of broad band low frequency directional coupler of the present utility model；
Fig. 4 is the structure chart of pcb board in broad band low frequency directional coupler of the present utility model.
Main element symbol description is as follows：
10th, aluminum alloy body 11, Male head connector
12nd, female connector 13, cavity coupling aperture
14th, pcb board 15, transmission line
16th, MCX connectors 17, first lead directly to wire
18th, the second straight-through wire the 19, the 3rd leads directly to wire
20th, the 4th straight-through wire the 21, the 5th leads directly to wire
22nd, the first chip inductor 23, the second chip inductor
24th, the 3rd chip inductor 25, the 4th chip inductor
26th, the first Chip-R 27, the first patch capacitor
28th, the second Chip-R 29, the 3rd Chip-R
30th, the 4th Chip-R 31, main coupling line
32nd, the 5th Chip-R 33, the second patch capacitor
34th, coupling delivery outlet 35, joint inner core
36th, spanner screens
161st, connecting portion 162, MCX inner cores
Embodiment
In order to more clearly state the utility model, the utility model is further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, the broad band low frequency directional coupler that the utility model is provided, including aluminum alloy body 10, male connect
Device 11 and female connector 12 are connect, aluminum alloy body 10 itself is enclosed to form a cavity, and the both sides of aluminum alloy body 10 are equipped with
The U-shaped cavity coupling aperture 13 connected with the cavity, and the both sides of aluminum alloy body 10 are further fixed on pcb board 14, and each pcb board
Fixed be fitted with multiple resistance being connected electrically, inductance and electric capacity, the cavity is provided with transmission line 15 on 14, male connection
Device 11 and female connector 12 are separately fixed at the two ends of aluminum alloy body 10, and Male head connector 11 and female connector 12 it
Between connected by transmission line 15, the MCX connectors 16 being connected electrically are respectively and fixedly provided with each pcb board.Led in transmission line 15
Body turns on excellent 50 ohm of the impedance of switching performance by brass wire machine-shaping, transmission line 15 and connector screw threads for fastening, leads directly to
Standing-wave ratio is less than 1.04, leads directly to insertion loss and is less than 0.1.Two pcb boards 14 of the present utility model are preceding to coupling and anti-respectively
To coupling, greatly save in the range of space, 87-810MHz that degree of coupling undulated control is within 1dBm, directionality all-pass band is big
In 30dBm, can accomplishing broadcast band using this directional coupler, the all-channel in the case where being changed without device is real-time to TV band
Sampling monitoring, the data analysis for the later stage provides accurate foundation.
The broad band low frequency directional coupler provided compared to the situation of prior art, the utility model, main body is closed using aluminium
Golden electroplating technology, it is ensured that also have the advantages that heat dissipation characteristics while intensity, lightweight, can be just under some rugged environments
Often use, service life increase, cavity coupling aperture 13 coordinates microstrip coupled using U-shaped mouth, and output end uses the devices such as inductance
Match somebody with somebody, coupling fluctuation can be accomplished to be less than 1dBm, and directionality can accomplish to be more than 30dBm, and the degree of coupling on forward and backward both sides can
Accomplish ± 0.1dBm, reliable accuracy guarantee is provided for later stage sampling and analysis of signal.
Refering to Fig. 2 and 4, the fixed first straight-through wire 17, second that is fitted with leads directly to wire 18, the on each pcb board 14
Three straight-through wires the 19, the 4th lead directly to wire 20 and the 5th and lead directly to wire 21, and one end of the first straight-through wire 17 passes through the first paster
Inductance 22 be connected with one end of the second straight-through wire 18, and the second straight-through wire 18 the other end by the second chip inductor 23 and
One end connection of 3rd straight-through wire 19, the other end of the 3rd straight-through wire 19 is led directly to by the 3rd chip inductor 24 with the 4th leads
One end connection of line 20, the 4th other end for leading directly to wire 20 passes through one end of the 4th chip inductor 25 and the 5th straight-through wire 21
Connection.The other end of first straight-through wire 17 is connected by the first Chip-R 26 with pcb board 14, and the first straight-through wire 17
Side is connected by the first patch capacitor 27 with pcb board 14.The side of second straight-through wire 18 by the second Chip-R 28 with
Pcb board 14 is connected, and its opposite side is connected by the 3rd Chip-R 29 and the 4th Chip-R 30 with pcb board 14, and second is straight
Corresponding position on the pcb board 14 of the opposite side of admittance line 18, which is fixed, is fitted with main coupling line 31.3rd straight-through wire 19 leads to
The 5th Chip-R 32 is crossed to be connected with pcb board 14, and the 3rd Chip-R 29, the 4th Chip-R 30 and the 5th Chip-R
32 are from top to bottom sequentially distributed.4th straight-through wire 20 is connected by the second patch capacitor 33 with pcb board 14.Each MCX connections
Device 16 includes connecting portion 161 and the multiple MCX inner cores 162 being fixed on connecting portion 161, one end of the 5th straight-through wire 21
To couple delivery outlet 34, and one of MCX inner cores 162 are fixedly connected by welding with coupling delivery outlet 34.
Refering to Fig. 2 and 3, Male head connector 11 and female connector 12 are equipped with outside with one end that aluminum alloy body 10 is connected
Screw thread, and the two ends of aluminum alloy body 10 are equipped with internal thread, Male head connector 11 and female connector 12 respectively with aluminium alloy
After main body 10 is threadedly coupled, Male head connector 11 and female connector 12 are separately fixed in aluminum alloy body 10.Transmission line 15
One end be threadedly coupled with the joint inner core 35 of Male head connector 11, and the joint inner core 35 of its other end and female connector 12
Threaded connection, after the two ends of transmission line 15 are threadedly coupled with the joint inner core 35 of Male head connector 11 and female connector 12 respectively
In the secondary fixation by way of welding.Female connector 12 is provided with the spanner screens 36 for being easy to dismantle it.
Disclosed above is only several specific embodiments of the present utility model, but the utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into protection domain of the present utility model.
Claims (10)
1. a kind of broad band low frequency directional coupler, it is characterised in that including the connection of aluminum alloy body, Male head connector and female
Device, the aluminum alloy body itself encloses to form a cavity, and the both sides of the aluminum alloy body are equipped with the U connected with the cavity
Cavity coupling aperture, and the both sides of aluminum alloy body are further fixed on pcb board, and on each pcb board it is fixed be fitted with it is multiple with
Transmission line is provided with its resistance, inductance and the electric capacity that electrically connect, the cavity, the Male head connector and female connector are solid respectively
The two ends of aluminum alloy body are scheduled on, and are connected between Male head connector and female connector by transmission line, on each pcb board
It is fixed with the MCX connectors being connected electrically.
2. broad band low frequency directional coupler according to claim 1, it is characterised in that fixed on each pcb board
The first straight-through wire, the second straight-through wire, the 3rd straight-through wire, the 4th straight-through wire and the 5th straight-through wire are fitted with, it is described
One end of first straight-through wire is connected by the first chip inductor with one end of the second straight-through wire, and second leads directly to the another of wire
One end is connected by the second chip inductor with one end of the 3rd straight-through wire, and the other end of the 3rd straight-through wire passes through the 3rd paster
Inductance is connected with one end of the 4th straight-through wire, and the other end of the 4th straight-through wire is led directly to by the 4th chip inductor with the 5th leads
One end connection of line.
3. broad band low frequency directional coupler according to claim 2, it is characterised in that described first leads directly to the another of wire
End is connected by the first Chip-R with pcb board, and the side of the first straight-through wire is connected by the first patch capacitor and pcb board
Connect.
4. broad band low frequency directional coupler according to claim 2, it is characterised in that the side of the described second straight-through wire
It is connected by the second Chip-R with pcb board, and its opposite side is connected by the 3rd Chip-R and the 4th Chip-R with pcb board
Connect, the corresponding position on the pcb board of the described second straight-through wire opposite side, which is fixed, is fitted with main coupling line.
5. broad band low frequency directional coupler according to claim 4, it is characterised in that the described 3rd straight-through wire passes through the
Five Chip-Rs are connected with pcb board, and the 3rd Chip-R, the 4th Chip-R and the 5th Chip-R are from top to bottom successively
Distribution.
6. broad band low frequency directional coupler according to claim 2, it is characterised in that the described 4th straight-through wire passes through the
Two patch capacitors are connected with pcb board.
7. broad band low frequency directional coupler according to claim 2, it is characterised in that each MCX connectors include connecting
Socket part and the multiple MCX inner cores being fixed on connecting portion, one end of the described 5th straight-through wire is coupling delivery outlet, and wherein
One MCX inner core is fixedly connected by welding with coupling delivery outlet.
8. broad band low frequency directional coupler according to claim 1, it is characterised in that the Male head connector and female connect
Connect one end that device is connected with aluminum alloy body and be equipped with external screw thread, and the two ends of aluminum alloy body are equipped with internal thread, male connects
Connect device and after female connector is threadedly coupled with aluminum alloy body respectively, Male head connector and female connector are separately fixed at aluminium
In alloy bulk.
9. broad band low frequency directional coupler according to claim 8, it is characterised in that one end of the transmission line and male
The joint inner core of connector is threadedly coupled, and its other end is threadedly coupled with the joint inner core of female connector, the transmission line
Two ends be threadedly coupled respectively with the joint inner core of Male head connector and female connector after secondary solid by way of welding
It is fixed.
10. broad band low frequency directional coupler according to claim 9, it is characterised in that the female connector is provided with
It is easy to the spanner screens dismantled to it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621244802.8U CN206340654U (en) | 2016-11-21 | 2016-11-21 | Broad band low frequency directional coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621244802.8U CN206340654U (en) | 2016-11-21 | 2016-11-21 | Broad band low frequency directional coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206340654U true CN206340654U (en) | 2017-07-18 |
Family
ID=59307047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621244802.8U Expired - Fee Related CN206340654U (en) | 2016-11-21 | 2016-11-21 | Broad band low frequency directional coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206340654U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193094A (en) * | 2018-09-03 | 2019-01-11 | 佛山市高明欧电子制造有限公司 | A kind of coupler easy to repair |
| CN110661071A (en) * | 2019-09-19 | 2020-01-07 | 成都安擎微波科技有限责任公司 | Multi-path high-power broadband coupler |
| CN114614230A (en) * | 2020-12-09 | 2022-06-10 | 深南电路股份有限公司 | Coupler and electronic equipment |
-
2016
- 2016-11-21 CN CN201621244802.8U patent/CN206340654U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193094A (en) * | 2018-09-03 | 2019-01-11 | 佛山市高明欧电子制造有限公司 | A kind of coupler easy to repair |
| CN109193094B (en) * | 2018-09-03 | 2020-12-08 | 佛山市高明欧一电子制造有限公司 | Coupler convenient to maintenance |
| CN110661071A (en) * | 2019-09-19 | 2020-01-07 | 成都安擎微波科技有限责任公司 | Multi-path high-power broadband coupler |
| CN114614230A (en) * | 2020-12-09 | 2022-06-10 | 深南电路股份有限公司 | Coupler and electronic equipment |
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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 |
Granted publication date: 20170718 Termination date: 20201121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |