CN105375092B - A kind of coaxial cavity filter port coupled structure - Google Patents
A kind of coaxial cavity filter port coupled structure Download PDFInfo
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- CN105375092B CN105375092B CN201410411416.2A CN201410411416A CN105375092B CN 105375092 B CN105375092 B CN 105375092B CN 201410411416 A CN201410411416 A CN 201410411416A CN 105375092 B CN105375092 B CN 105375092B
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- cylindrical shape
- cavity filter
- printed circuit
- circuit board
- coaxial cavity
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- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 29
- 238000010168 coupling process Methods 0.000 claims description 29
- 238000005859 coupling reaction Methods 0.000 claims description 29
- 238000002955 isolation Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 14
- 238000009434 installation Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Control Of Motors That Do Not Use Commutators (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The present invention is suitable for field of communication technology, and providing a kind of coaxial cavity filter port coupled structure includes：One metal mobile jib, a cylindrical shape printed circuit board, an insulating layer and two adapters；The insulating layer adhere well to the cylindrical shape printed circuit board outer wall, and the metal mobile jib is located in the cavity that the cylindrical shape printed circuit board surrounds, and two adapters are respectively arranged at the both ends of the cylindrical shape printed circuit board；Wherein, the metal mobile jib, the cylindrical shape printed circuit board and the insulating layer can be fixed together by the adapter.Present invention saves row's cavity spaces of cavity, increase design volume available, can reduce design difficulty to a certain extent.And from the perspective of installation and debugging, due to the use of the form of component, the very high integrity of component and excellent consistency can greatly save assembly and debug time, improving production efficiency.
Description
Technical field
The invention belongs to field of communication technology more particularly to a kind of coaxial cavity filter port coupled structures.
Background technology
In in the past few decades, wireless mobile telecommunication technology rapid development, wherein radio-frequency module has been obtained for extensively
Application, especially filter plays increasingly important role, and coaxial cavity filter designing technique is more and more ripe.Together
Axocoel fluid filter sometimes needs to add one block of termination power plate in common end, and an amplitude phase is exported by way of coupling
To weaker signal into moving standing wave alarm test.
In the prior art, it needs to reserve a certain range in cavity ANT (antenna) near ports to install termination power plate,
However, just all bringing inconvenience to the design of cavity, installation and debugging in this way.From the design point of view, the coupling electricity specially retained
Road plate space hold row's cavity space of cavity, to increase design difficulty.It is adjusted in specific debugging by replacing original paper
Section value, with needed for realizing coupling and directionality index.Therefore, for debugging and installing, the coupling of each cavity
Circuit board shape and onboard component values are all different, and when practical adjustment and installation needs to test determination one by one, time-consuming and laborious.
Invention content
The purpose of the present invention is to provide a kind of coaxial cavity filter port coupled structures, it is intended to solve in the prior art
It is existing to need to reserve a certain range in cavity antenna near ports to install termination power plate, however, just giving cavity in this way
Design, installation and debugging all bring inconvenience.From the design point of view, the termination power plate space hold that specially retains cavity
Cavity space is arranged, to increase design difficulty.Numerical value is adjusted by replacing original paper in specific debugging, to realize required coupling
It closes and directionality index.Therefore, for debugging and installing, the termination power plate shape of each cavity and onboard original paper number
Value is all different, and when practical adjustment and installation needs to test determination one by one, time-consuming and laborious problem.
The invention is realized in this way a kind of coaxial cavity filter port coupled structure, the coaxial cavity filter
Port coupled structure includes：One metal mobile jib, a cylindrical shape printed circuit board, an insulating layer and two adapters；It is described exhausted
Edge layer adhere well to the cylindrical shape printed circuit board outer wall, and the metal mobile jib is located at the cylindrical shape printed circuit board and encloses
At cavity in, two adapters are respectively arranged at the both ends of the cylindrical shape printed circuit board；Wherein, pass through described turn
The metal mobile jib, the cylindrical shape printed circuit board and the insulating layer can be fixed together by connector.
Preferably, the printed circuit board includes internal layer, outer layer and dielectric layer；The dielectric layer is located at the internal layer and institute
It states between outer layer.
Preferably, the internal layer surface is provided with strip, and the strip is used for the coupling of signal as coupling microstrip
It closes.
Preferably, the internal layer is made of metallic walls.
Preferably, the outer layer includes coupled end and isolation end；Isolation end one end is coupled by via with the described of internal layer
Micro-strip is connected, one first resistor of centre series connection.
Preferably, the first resistor is adjustable resistance.
Preferably, described coupled end one end connects the coupling microstrip of the internal layer, one π of centre connection by via
Shape attenuator, the pia attenuator is for adjusting coupling index；End is set there are one output port, and the output port is used for
Output coupling signal.
Preferably, wherein the pia attenuator of coupled end is made of second resistance, 3rd resistor, the 4th resistance.
Preferably, the 3rd resistor is adjustable resistance.
Preferably, the insulating layer is set to the superficies；Wherein, the insulating layer only reserves the sky of adjustable resistance
Between and coupled end output position.
In the present invention, it by the way that coaxial cavity filter port coupled structure is installed on ANT mouthfuls of common ends, couples
End end fitting connect cavity coupling cable, debugging when, by adjust adjustable resistance arrive suitable position, come realize isolation index with
Directionality index.After debugging, adjustable resistance and other gaps are covered with marine glue, to accomplish to seal waterproof.The present invention
Embodiment avoids the use of individual termination power plate in the prior art, has saved row's cavity space of cavity, has increased and set
Volume available is counted, design difficulty can be reduced to a certain extent.And from the perspective of installation and debugging, due to the use of component
Form, the very high integrity of component and excellent consistency, can greatly save assembly and debug time, improving production efficiency.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of coaxial cavity filter port provided in an embodiment of the present invention coupled structure；
Fig. 2 is the stereoscopic schematic diagram of coaxial cavity filter port provided in an embodiment of the present invention coupled structure；
Fig. 3 is the electrical block diagram of printed circuit board surface provided in an embodiment of the present invention.
Specific implementation mode
In order to make the purpose of the present invention, technical solution and advantageous effect be more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention.
In embodiments of the present invention, by the way that coaxial cavity filter port coupled structure is installed on ANT mouthfuls of common ends, coupling
It closes end end fitting and connects cavity coupling cable, in debugging, by adjusting adjustable resistance to suitable position, to realize isolation index
With directionality index.After debugging, adjustable resistance and other gaps are covered with marine glue, to accomplish to seal waterproof.This hair
The outer circuit in cylindrical shape printed circuit board in the coaxial cavity filter port coupled structure that bright embodiment provides,
The outer circuit function is equivalent to the termination power plate of traditional approach.To solve needs existing in the prior art in cavity
Antenna port nearby reserves a certain range to install termination power plate, however, just giving the design of cavity, installation and debugging so all
Bring inconvenience.From the design point of view, the termination power plate space hold that specially retains row's cavity space of cavity, to increase
Design difficulty.Adjust numerical value by replacing original paper in specific debugging, with needed for realizing coupling and directionality index.
Therefore, for debugging and installing, the termination power plate shape of each cavity and onboard original paper numerical value are all different, practical to debug
It needs to test determination one by one when installation, time-consuming and laborious problem.
It please refers to Fig.1 and Fig. 2, is that the structure of coaxial cavity filter port provided in an embodiment of the present invention coupled structure is shown
It is intended to.For convenience of description, it illustrates only and the relevant part of the embodiment of the present invention.
Coaxial cavity filter port coupled structure includes mainly：One metal mobile jib 10, a cylindrical shape printed circuit
Plate 20, an insulating layer 30 and two adapters (not indicated in figure).The insulating layer 30 adhere well to the cylindrical shape print
20 outer wall of printed circuit board, the metal mobile jib 10 are located in the cavity that the cylindrical shape printed circuit board 20 surrounds, described two
Adapter is respectively arranged at the both ends of the cylindrical shape printed circuit board 20.It wherein, can be by the gold by the adapter
Owner's bar 10, the cylindrical shape printed circuit board 20 and the insulating layer 30 are fixed together.
Preferably, the metal mobile jib 10 is cylinder.The both ends of the cylindrical shape printed circuit board 20 have opening.
In embodiments of the present invention, two adapters are respectively arranged at 20 both ends of cylindrical shape printed circuit board
Opening.
In embodiments of the present invention, which uses 7/16Din adapters.The input terminal of the 7/16Din adapters
For the moon, output end is sun.
In embodiments of the present invention, the cylindrical shape printed circuit board 20 includes internal layer, outer layer and dielectric layer；The medium
Layer is between the internal layer and the outer layer.The internal layer surface is provided with strip, the strip as coupling microstrip,
Coupling for signal.Wherein, the internal layer is mainly made of metallic walls.Wherein, the internal layer, outer layer are printed circuit,
The internal layer, outer layer use one layer of thin copper sheet, by chemical attack, make current embodiment require that shape.
Referring to Fig. 3, in embodiments of the present invention, the outer layer includes coupled end and isolation end.Wherein, the coupled end
Extend the outer wall of the insulating layer 30.Isolation end one end is connected by via with the coupling microstrip of internal layer, centre series connection
One first resistor, the first resistor are adjustable resistance R1, and required coupling and direction are adjusted by adjustable resistance R1
Property index.Described coupled end one end connects the coupling microstrip of the internal layer by via, and centre connects a π shapes decaying
Device, the pia attenuator is for adjusting coupling index；End is set there are one output port, and the output port is used to export coupling
Close signal.Wherein, the pia attenuator of coupled end is made of second resistance R2,3rd resistor R3, the 4th resistance R4.Wherein,
3rd resistor R3 is adjustable resistance.It is understood, however, that this is debugging plan, and when practical large-scale production, the institute at two
Adjustable resistance is stated herein alternatively at fixed value resistance.
As a preferred embodiment of the present invention, the insulating layer 30 is set to the superficies.Wherein, the insulating layer
Only reserve space and the coupled end output position of the adjustable resistance.
In embodiments of the present invention, after debugging, the gap of adjustable resistance and other positions can be covered with marine glue,
Play fixed and waterproof.After large-scale production, adjustable resistance can be changed to fixed value resistance.
In conclusion the embodiment of the present invention by coaxial cavity filter port coupled structure by being installed on ANT mouthfuls
Common end, coupled end end fitting connect cavity coupling cable, in debugging, by adjusting adjustable resistance to suitable position, come real
Index and directionality index is now isolated.After debugging, adjustable resistance and other gaps are covered with marine glue, to accomplish to seal
Waterproof.The embodiment of the present invention avoids the use of individual termination power plate in the prior art, has saved row's cavity space of cavity
Between, design volume available is increased, design difficulty can be reduced to a certain extent.And from the perspective of installation and debugging, by
In the form using component, the very high integrity of component and excellent consistency can greatly save assembly and debug time, carry
Rise production efficiency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of coaxial cavity filter port coupled structure, which is characterized in that the coaxial cavity filter port coupling knot
Structure includes：One metal mobile jib, a cylindrical shape printed circuit board, an insulating layer and two adapters；The insulating layer closely pastes
The cylindrical shape printed circuit board outer wall is invested, the metal mobile jib is located at the cavity that the cylindrical shape printed circuit board surrounds
Interior, two adapters are respectively arranged at the both ends of the cylindrical shape printed circuit board；It wherein, can by the adapter
The metal mobile jib, the cylindrical shape printed circuit board and the insulating layer are fixed together.
2. coaxial cavity filter port as described in claim 1 coupled structure, which is characterized in that the cylindrical shape printing electricity
Road plate includes internal layer, outer layer and dielectric layer；The dielectric layer is between the internal layer and the outer layer.
3. coaxial cavity filter port as claimed in claim 2 coupled structure, which is characterized in that the internal layer surface setting
There are strip, the strip to be used for the coupling of signal as coupling microstrip.
4. coaxial cavity filter port as claimed in claim 3 coupled structure, which is characterized in that the internal layer is by metallic walls
It constitutes.
5. coaxial cavity filter port as claimed in claim 3 coupled structure, which is characterized in that the outer layer includes coupling
End and isolation end；Isolation end one end is connected by via with the coupling microstrip of internal layer, one first resistor of centre series connection.
6. coaxial cavity filter port as claimed in claim 5 coupled structure, which is characterized in that the first resistor is can
Adjust resistance.
7. coaxial cavity filter port as claimed in claim 3 coupled structure, which is characterized in that described coupled end one end is logical
Via connects the coupling microstrip of the internal layer, and one pia attenuator of centre connection, the pia attenuator is for adjusting
Couple index；End is set there are one output port, and the output port is used for output coupling signal.
8. coaxial cavity filter port as claimed in claim 7 coupled structure, which is characterized in that wherein, by second resistance,
3rd resistor, the 4th resistance constitute the pia attenuator of coupled end.
9. coaxial cavity filter port as claimed in claim 8 coupled structure, which is characterized in that the 3rd resistor is can
Adjust resistance.
10. coaxial cavity filter port as claimed in claim 5 coupled structure, which is characterized in that the insulating layer setting
In the superficies；Wherein, the insulating layer only reserves space and the coupled end output position of adjustable resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411416.2A CN105375092B (en) | 2014-08-19 | 2014-08-19 | A kind of coaxial cavity filter port coupled structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411416.2A CN105375092B (en) | 2014-08-19 | 2014-08-19 | A kind of coaxial cavity filter port coupled structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105375092A CN105375092A (en) | 2016-03-02 |
| CN105375092B true CN105375092B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410411416.2A Active CN105375092B (en) | 2014-08-19 | 2014-08-19 | A kind of coaxial cavity filter port coupled structure |
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| CN (1) | CN105375092B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676542B (en) * | 2019-09-05 | 2021-06-25 | 京信通信技术(广州)有限公司 | Port coupling structure, filter and radio frequency assembly |
| CN113540734B (en) * | 2020-04-22 | 2022-09-02 | 大富科技(安徽)股份有限公司 | Coupling device and communication equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434539A (en) * | 2002-01-08 | 2003-08-06 | 株式会社村田制作所 | Filter having directional couplex and communication device |
| CN1554135A (en) * | 2002-06-27 | 2004-12-08 | I | Directional coupler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101953018A (en) * | 2008-09-26 | 2011-01-19 | 埃克斯腾网络有限公司 | Chockless power coupler |
-
2014
- 2014-08-19 CN CN201410411416.2A patent/CN105375092B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434539A (en) * | 2002-01-08 | 2003-08-06 | 株式会社村田制作所 | Filter having directional couplex and communication device |
| CN1554135A (en) * | 2002-06-27 | 2004-12-08 | I | Directional coupler |
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| Publication number | Publication date |
|---|---|
| CN105375092A (en) | 2016-03-02 |
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Effective date of registration: 20190214 Address after: 518000 Guangming Street, Guangming New District, Shenzhen City, Guangdong Province, Genyu Road, Mobi Science and Technology Building Co-patentee after: Mobile Antenna Technologies (Shenzhen) Co., Ltd. Patentee after: Mobi Technology (Shenzhen) Co., Ltd. Co-patentee after: Mobile Antenna Technologies (Jian) Co., Ltd. Co-patentee after: MOBI Technologies (Xi'an) Co., Ltd. Address before: 518057 Mobi Building, Langshan Road, North District of Nanshan High-tech Industrial Park, Shenzhen City, Guangdong Province Co-patentee before: Mobile Antenna Technologies (Jian) Co., Ltd. Patentee before: Mobile Antenna Technologies (Shenzhen) Co., Ltd. Co-patentee before: MOBI Technologies (Xi'an) Co., Ltd. |
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