CN105375092A - Port coupling structure of coaxial cavity filter - Google Patents
Port coupling structure of coaxial cavity filter Download PDFInfo
- Publication number
- CN105375092A CN105375092A CN201410411416.2A CN201410411416A CN105375092A CN 105375092 A CN105375092 A CN 105375092A CN 201410411416 A CN201410411416 A CN 201410411416A CN 105375092 A CN105375092 A CN 105375092A
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- China
- Prior art keywords
- circuit board
- printed circuit
- cavity filter
- coaxial cavity
- filter port
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- 230000008878 coupling Effects 0.000 title claims abstract description 39
- 238000010168 coupling process Methods 0.000 title claims abstract description 39
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 230000004888 barrier function Effects 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000013461 design Methods 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 3
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material 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 invention is suitable for the communication technology field, and provides a port coupling structure of a coaxial cavity filter. The port coupling structure comprises a metal main rod, a cylindrical printed circuit board, an insulating layer and two adapters. The insulating layer is tightly attached to the outer wall of the cylindrical printed circuit board. The metal main rod is positioned in a cavity surrounded by the cylindrical printed circuit board. The two adapters are disposed on the two ends of the cylindrical printed circuit board respectively. The metal main rod, the cylindrical printed circuit board and the insulating layer can be combined and fixed together by means of the adapters. The cavity arrangement space is saved, the available volume for the design is increased, and design difficulties are reduced to a certain degree. From the perspective of installation and debugging, the assembling and debugging time are greatly saved and the production efficiency is improved since an assembly exhibits high integration and excellent consistency through an assembly form.
Description
Technical field
The invention belongs to communication technical field, particularly relate to a kind of coaxial cavity filter port coupled structure.
Background technology
In the past few decades, wireless mobile telecommunication technology develop rapidly, wherein, radio-frequency module is widely used, and especially filter plays more and more important effect, and coaxial cavity filter designing technique is more and more ripe.Coaxial cavity filter sometimes needs to add one block of coupling circuit plate at common port, and the signal exporting amplitude relatively weak by the mode of coupling carries out standing wave alarm test.
In the prior art, need to reserve certain limit to install coupling circuit plate at cavity ANT (antenna) near ports, but, so just all bring inconvenience to the design of cavity, installment and debugging.From design, the coupling circuit board space specially retained occupies row's cavity space of cavity, thus adds design difficulty.Numerical value is regulated by changing original paper, to realize required coupling and directivity index when concrete debugging.Therefore, from debugging with install, it is all different that the coupling circuit plate shape of each cavity and plate carry component values, needs to test one by one and determine, waste time and energy during actual adjustment and installation.
Summary of the invention
The object of the present invention is to provide a kind of coaxial cavity filter port coupled structure, be intended to solve the needs existed in prior art and reserve certain limit to install coupling circuit plate at cavity antenna near ports, but, so just all bring inconvenience to the design of cavity, installment and debugging.From design, the coupling circuit board space specially retained occupies row's cavity space of cavity, thus adds design difficulty.Numerical value is regulated by changing original paper, to realize required coupling and directivity index when concrete debugging.Therefore, from debugging and installing, it is all different that the coupling circuit plate shape of each cavity and plate carry original paper numerical value, needs to test one by one to determine during actual adjustment and installation, the problem wasted time and energy.
The present invention is achieved in that a kind of coaxial cavity filter port coupled structure, and described coaxial cavity filter port coupled structure comprises: a metal mobile jib, a cylindrical shape printed circuit board (PCB), an insulating barrier and two adapters; Described insulating barrier adhere well to described cylindrical shape printed circuit board (PCB) outer wall, and described metal mobile jib is positioned at the cavity that described cylindrical shape printed circuit board (PCB) surrounds, and described two adapters are arranged at the two ends of described cylindrical shape printed circuit board (PCB) respectively; Wherein, described metal mobile jib, described cylindrical shape printed circuit board (PCB) and described insulating barrier can be fixed together by described adapter.
Preferably, described printed circuit board (PCB) comprises internal layer, skin and dielectric layer; Described dielectric layer is between described internal layer and described skin.
Preferably, described internal layer surface is provided with strip, described strip as coupling microstrip, for the coupling of signal.
Preferably, described internal layer is made up of metallic walls.
Preferably, described skin comprises coupled end and isolation end; Isolation end one end is connected with the described coupling microstrip of internal layer by via hole, middle first resistance in parallel.
Preferably, described first resistance is adjustable resistance.
Preferably, described coupled end one end connects the described coupling microstrip of described internal layer by via hole, a middle connection pia attenuator, and described pia attenuator is for regulating coupling index; End is provided with an output port, and described output port is for exporting coupled signal.
Preferably, wherein, the described pia attenuator of coupled end is made up of the second resistance, the 3rd resistance, the 4th resistance.
Preferably, described 3rd resistance is adjustable resistance.
Preferably, described insulating barrier is arranged at described superficies; Wherein, described insulating barrier only reserves space and the coupled end outgoing position of adjustable resistance.
In the present invention, by described coaxial cavity filter port coupled structure is installed on ANT mouth common port, coupled end end fitting connects cavity coupling cable, when debugging, by regulating adjustable resistance to correct position, realizes isolation index and directivity index.After debugging, cover adjustable resistance and other spaces, to accomplish water-tight with marine glue.The embodiment of the present invention avoids the use of independent coupling circuit plate of the prior art, has saved row's cavity space of cavity, has added design volume available, can reduce design difficulty to a certain extent.And from the angle of installment and debugging, owing to using the form of assembly, the very high integrity of assembly and excellent consistency, can save assembling and debug time, improving production efficiency greatly.
Accompanying drawing explanation
Fig. 1 is the generalized section of the coaxial cavity filter port coupled structure that the embodiment of the present invention provides;
Fig. 2 is the schematic perspective view of the coaxial cavity filter port coupled structure that the embodiment of the present invention provides;
Fig. 3 is the electrical block diagram of the printed circuit board surface that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In embodiments of the present invention, by coaxial cavity filter port coupled structure is installed on ANT mouth common port, coupled end end fitting connects cavity coupling cable, when debugging, by regulating adjustable resistance to correct position, realize isolation index and directivity index.After debugging, cover adjustable resistance and other spaces, to accomplish water-tight with marine glue.Outer circuit in cylindrical shape printed circuit board (PCB) in the described coaxial cavity filter port coupled structure that the embodiment of the present invention provides, this outer circuit function is equivalent to the coupling circuit plate of traditional approach.Thus solve the needs existed in prior art and reserve certain limit to install coupling circuit plate at cavity antenna near ports, but, so just give the design of cavity, installment and debugging all brings inconvenience.From design, the coupling circuit board space specially retained occupies row's cavity space of cavity, thus adds design difficulty.Numerical value is regulated by changing original paper, to realize required coupling and directivity index when concrete debugging.Therefore, from debugging and installing, it is all different that the coupling circuit plate shape of each cavity and plate carry original paper numerical value, needs to test one by one to determine during actual adjustment and installation, the problem wasted time and energy.
Referring to Fig. 1 and Fig. 2, is the structural representation of the coaxial cavity filter port coupled structure that the embodiment of the present invention provides.For convenience of explanation, illustrate only the part relevant to the embodiment of the present invention.
Described coaxial cavity filter port coupled structure mainly comprises: metal mobile jib 10, cylindrical shape printed circuit board (PCB) 20, insulating barrier 30 and two adapters (not indicating in figure).Described insulating barrier 30 adhere well to described cylindrical shape printed circuit board (PCB) 20 outer wall, and described metal mobile jib 10 is positioned at the cavity that described cylindrical shape printed circuit board (PCB) 20 surrounds, and described two adapters are arranged at the two ends of described cylindrical shape printed circuit board (PCB) 20 respectively.Wherein, described metal mobile jib 10, described cylindrical shape printed circuit board (PCB) 20 and described insulating barrier 30 can be fixed together by described adapter.
Preferably, described metal mobile jib 10 is cylindrical.The two ends of described cylindrical shape printed circuit board (PCB) 20 have opening.
In embodiments of the present invention, described two adapters are arranged at the opening part at described cylindrical shape printed circuit board (PCB) 20 two ends respectively.
In embodiments of the present invention, this adapter adopts 7/16Din adapter.The input of described 7/16Din adapter is cloudy, and output is sun.
In embodiments of the present invention, described cylindrical shape printed circuit board (PCB) 20 comprises internal layer, skin and dielectric layer; Described dielectric layer is between described internal layer and described skin.Described internal layer surface is provided with strip, described strip as coupling microstrip, for the coupling of signal.Wherein, described internal layer is formed primarily of metallic walls.Wherein, described internal layer, skin are printed circuit, and described internal layer, skin adopt thin one deck copper sheet, by chemical corrosion, do the shape that cost implementation needs.
Refer to Fig. 3, in embodiments of the present invention, described skin comprises coupled end and isolation end.Wherein, described coupled end extends the outer wall of described insulating barrier 30.Isolation end one end is connected with the described coupling microstrip of internal layer by via hole, and middle first resistance in parallel, described first resistance is adjustable resistance R1, regulates required coupling and directivity index by this adjustable resistance R1.Described coupled end one end connects the described coupling microstrip of described internal layer by via hole, a middle connection pia attenuator, and described pia attenuator is for regulating coupling index; End is provided with an output port, and described output port is for exporting coupled signal.Wherein, the described pia attenuator of coupled end is made up of the second resistance R2, the 3rd resistance R3, the 4th resistance R4.Wherein, the 3rd resistance R3 is adjustable resistance.But be understandable that, this is debugging plan, during actual large-scale production, the described adjustable resistance replaceable one-tenth fixed value resistance herein at two places.
As one embodiment of the present invention, described insulating barrier 30 is arranged at described superficies.Wherein, described insulating barrier only reserves space and the coupled end outgoing position of described adjustable resistance.
In embodiments of the present invention, after debugging, the space of adjustable resistance and other positions can cover with marine glue, plays fixing and waterproof.After large-scale production, adjustable resistance can be changed to fixed value resistance.
In sum, the embodiment of the present invention is by being installed on ANT mouth common port by described coaxial cavity filter port coupled structure, and coupled end end fitting connects cavity coupling cable, when debugging, by regulating adjustable resistance to correct position, realize isolation index and directivity index.After debugging, cover adjustable resistance and other spaces, to accomplish water-tight with marine glue.The embodiment of the present invention avoids the use of independent coupling circuit plate of the prior art, has saved row's cavity space of cavity, has added design volume available, can reduce design difficulty to a certain extent.And from the angle of installment and debugging, owing to using the form of assembly, the very high integrity of assembly and excellent consistency, can save assembling and debug time, improving production efficiency greatly.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a coaxial cavity filter port coupled structure, is characterized in that, described coaxial cavity filter port coupled structure comprises: a metal mobile jib, a cylindrical shape printed circuit board (PCB), an insulating barrier and two adapters; Described insulating barrier adhere well to described cylindrical shape printed circuit board (PCB) outer wall, and described metal mobile jib is positioned at the cavity that described cylindrical shape printed circuit board (PCB) surrounds, and described two adapters are arranged at the two ends of described cylindrical shape printed circuit board (PCB) respectively; Wherein, described metal mobile jib, described cylindrical shape printed circuit board (PCB) and described insulating barrier can be fixed together by described adapter.
2. coaxial cavity filter port coupled structure as claimed in claim 1, it is characterized in that, described cylindrical shape printed circuit board (PCB) comprises internal layer, skin and dielectric layer; Described dielectric layer is between described internal layer and described skin.
3. coaxial cavity filter port coupled structure as claimed in claim 2, it is characterized in that, described internal layer surface is provided with strip, described strip as coupling microstrip, for the coupling of signal.
4. coaxial cavity filter port coupled structure as claimed in claim 3, it is characterized in that, described internal layer is made up of metallic walls.
5. coaxial cavity filter port coupled structure as claimed in claim 3, it is characterized in that, described skin comprises coupled end and isolation end; Isolation end one end is connected with the described coupling microstrip of internal layer by via hole, middle first resistance in parallel.
6. coaxial cavity filter port coupled structure as claimed in claim 5, it is characterized in that, described first resistance is adjustable resistance.
7. coaxial cavity filter port coupled structure as claimed in claim 3, it is characterized in that, described coupled end one end connects the described coupling microstrip of described internal layer by via hole, a middle connection pia attenuator, and described pia attenuator is for regulating coupling index; End is provided with an output port, and described output port is for exporting coupled signal.
8. coaxial cavity filter port coupled structure as claimed in claim 7, is characterized in that, wherein, is made up of the described pia attenuator of coupled end the second resistance, the 3rd resistance, the 4th resistance.
9. coaxial cavity filter port coupled structure as claimed in claim 8, it is characterized in that, described 3rd resistance is adjustable resistance.
10. coaxial cavity filter port coupled structure as claimed in claim 5, it is characterized in that, described insulating barrier is arranged at described superficies; Wherein, described insulating barrier only reserves space and the coupled end outgoing 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN105375092A true CN105375092A (en) | 2016-03-02 |
| CN105375092B CN105375092B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410411416.2A Active CN105375092B (en) | 2014-08-19 | 2014-08-19 | A kind of coaxial cavity filter port coupled structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676542A (en) * | 2019-09-05 | 2020-01-10 | 京信通信技术(广州)有限公司 | Port coupling structure, filter and radio frequency assembly |
| CN113540734A (en) * | 2020-04-22 | 2021-10-22 | 深圳市大富科技股份有限公司 | Coupling device and communication equipment |
Citations (3)
| 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 |
| US20100079218A1 (en) * | 2008-09-26 | 2010-04-01 | Albag Yehezkel | Chockless power coupler |
-
2014
- 2014-08-19 CN CN201410411416.2A patent/CN105375092B/en active Active
Patent Citations (3)
| 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 |
| US20100079218A1 (en) * | 2008-09-26 | 2010-04-01 | Albag Yehezkel | Chockless power coupler |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676542A (en) * | 2019-09-05 | 2020-01-10 | 京信通信技术(广州)有限公司 | Port coupling structure, filter and radio frequency assembly |
| 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 |
| CN113540734A (en) * | 2020-04-22 | 2021-10-22 | 深圳市大富科技股份有限公司 | Coupling device and communication equipment |
| 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 |
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| Publication number | Publication date |
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| CN105375092B (en) | 2018-09-14 |
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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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