CN201868545U - Higher harmonic suppression device of cavity filter - Google Patents
Higher harmonic suppression device of cavity filter Download PDFInfo
- Publication number
- CN201868545U CN201868545U CN2010205972172U CN201020597217U CN201868545U CN 201868545 U CN201868545 U CN 201868545U CN 2010205972172 U CN2010205972172 U CN 2010205972172U CN 201020597217 U CN201020597217 U CN 201020597217U CN 201868545 U CN201868545 U CN 201868545U
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- adjusting lever
- pedestal
- dividing plate
- lid
- cavity filter
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- 239000004020 conductor Substances 0.000 claims abstract description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 42
- 230000005764 inhibitory process Effects 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract 2
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
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- 230000008901 benefit Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
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- 238000009825 accumulation Methods 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model relates to a higher harmonic suppression device of a cavity filter, comprising a base and a cover body covering the base, wherein the base is provided with an input penetrating groove communicating the upper part and the lower part of the base; a plurality of output terminals, into which metal conductors extend, are arranged at the surface at the side wall of the base; the base is concavely provided with a resonance space which is communicated with the input penetrating grooves by the zigzag extending of the metal conductors and is provided with a plurality of cavities which are communicated with one another; the two side walls of the communicating part of the adjacent cavities are connected with clapboards above which a channel is formed; the cover body is provided with adjusting elements which can be adjusted to move up and down in a locking manner by aligning with all the cavities and a plurality of locking holes of all the clapboards; the plurality of adjusting elements are respectively provided with a resonance adjusting rod aligning with each cavity and a suppression adjusting rod aligning with each clapboard; and by adjusting the preset space distance between each suppression adjusting rod and the clapboard, the space of the channel needed by higher harmonic transmitting signals is reduced so as to suppress noise formed by higher harmonic, and further achieve clear signals without distortion.
Description
Technical field
The utility model relates to a kind of filter construction.
Background technology
Wireless telecommunications are very important rings in the communication industry now, all be seen everywhere arround life as wireless telecommunications such as broadcasting, radio telephone, mobile phone, bluetooth, GPS (Global Position System) (GPS), Wi-Fis, and in field of wireless communication, the key technology that antenna can't be given up especially, particularly in the microwave communication of long distance, its aspect of considering is wider.
Antenna is that the electromagnetic wave in the atmosphere is converted to current signal in the mode that is coupled, be passed to the equipment that the rear end connects again, and among the process of coupling, the frequency response of its filter is just very important, under the good frequency response, the sensitivity in the time of can improving coupling can operate in required work bandwidth simultaneously accurately, and have the effect of filtering noise information, and still can play clearly after signal is received.
Be with, see also shown in Figure 6, wherein this filter is provided with input slot A 1 for running through on pedestal A, and pedestal A is provided with the resonant space A 2 that is communicated with input slot A 1 and is connected with plural chamber A 21, resonant space A 2 is provided with the output terminals A 3 that is stretched into inside by lateral wall again away from two ends of input slot A 1, be covered with cover plate B in pedestal A top again, and cover plate B lower surface is provided with and aligns the plural number that stretches into each chamber A 21 and lead excellent B 1, sensitivity when utilizing each chamber A 21 and leading excellent B 1 and carry out frequency response and improve coupling, and adjustable full employment frequency range.
But along with the field and the product that use wireless signal constantly increase, the wireless signal that transmits in the frequency range of wireless signal and the air just constantly increases, lead the situation that is interfered when wireless signal transmits just more and more serious (seeing also shown in Figure 7) of putting in air, and produce the problem that the clear and distortion of poor TV signal is arranged, the signal that receives can't be used.
Be with, problem and disappearance when how to solve existing filter and using are the direction place person that the relevant manufacturer that is engaged in the industry desires most ardently the research improvement.
Summary of the invention
So, utility model designer is because above-mentioned problem and disappearance, be to collect related data, via assessing in many ways and considering, and to engage in the many years of experience of the industry accumulation, via constantly studying and revise, the beginning is designed this kind and can allow the high harmonic inhibition device of the clear and distortionless cavity filter of signal.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of high harmonic inhibition device of cavity filter is characterized in that: comprise that pedestal and cover overlay on the lid on the pedestal; Wherein:
This pedestal is provided with the upper and lower input of connection and runs through groove, be provided with plural lead-out terminal at the base side wall surface, each lead-out terminal has the metallic conductor that extends in the pedestal, on pedestal, be concaved with and supply metallic conductor to stretch into and be the meander-like extension to be communicated in the resonant space that input runs through groove, resonant space has the plural chamber of connection, and connection place of adjacent chamber two sidewalls are connected with the dividing plate that the top forms passage;
Align each chamber on this lid and each dividing plate place is equipped with the plural lockhole with internal thread respectively, and each lockhole internal lock is provided with to have external screw thread and can adjust the adjustment element of doing upper and lower displacement, plural number is adjusted element and is had the resonance adjusting lever that aligns each chamber respectively and align each dividing plate reducing the inhibition adjusting lever that high order harmonic component transmits signal space, and the adjusting lever that respectively resonates, suppresses adjusting lever and have spacing respectively and between each chamber bottom surface, each dividing plate.
Wherein: the plural chamber bottom surface of this pedestal convexes with the resonance body respectively, and each body that resonates is concaved with the groove that stretches into for the resonance adjusting lever downwards by end face.
Wherein: each dividing plate of this pedestal further is concaved with for suppressing the storage tank that adjusting lever stretches into down at end face.
Wherein: the set plural number of this lid is adjusted the adjusting lever and respectively suppress adjusting lever and be extended with screw terminal in stretching out lid end face one end of respectively resonating of element.
Wherein: the set plural number of this lid is adjusted the adjusting lever and respectively suppress adjusting lever and be arranged with nut in stretching out lid end face one end of respectively resonating of element.
Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be:
Pedestal of the present utility model is connected with the dividing plate that the top forms passage in connection place two sidewalls of adjacent chamber, by each dividing plate and inhibition adjusting lever reduction passage, reduce in the space that allows high order harmonic component transmit signal, so suppress the formed noise of high order harmonic component, and then reach clear, the distortionless purpose of signal.
This dividing plate of the present utility model can be concaved with storage tank down at end face, when lid is covered on pedestal upper surface, each suppresses adjusting lever just can not touch dividing plate when adjusting, can avoid producing because of suppressing the situation that adjusting lever contact dividing plate can't filtering, owing to need not repeat to adjust the action that suppresses adjusting lever, and then reach convenient adjustment and quick timesaving purpose.
Description of drawings
Fig. 1 is the stereo appearance figure of the utility model preferred embodiment;
Fig. 2 is the three-dimensional exploded view of the utility model preferred embodiment;
Fig. 3 is the stereo appearance figure of another embodiment pedestal of the utility model;
Fig. 4 is the stereo appearance figure of the another embodiment pedestal of the utility model;
Noise measurement figure when Fig. 5 is the utility model use;
Fig. 6 is existing three-dimensional exploded view;
Noise measurement figure when Fig. 7 is the utility model use.
Description of reference numerals: 1-pedestal; The 11-input runs through groove; The 132-body that resonates; The 12-lead-out terminal; The 1321-groove; The 121-metallic conductor; The 133-dividing plate; The 13-resonant space; The 1331-storage tank; The 131-chamber; The 14-passage; The 2-lid; The 21-lockhole; 222-suppresses adjusting lever; 22-adjusts element; The 223-screw terminal; The 221-adjusting lever that resonates; The 224-nut.
Embodiment
For reaching above-mentioned purpose and effect, technological means that the utility model adopted and structure thereof, drawing now illustrates in detail that with regard to preferred embodiment of the present utility model its feature and function are as follows, are beneficial to understand fully.
See also Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, be the stereo appearance figure, three-dimensional exploded view, the stereo appearance figure of another embodiment pedestal, the stereo appearance figure of another embodiment pedestal of the utility model preferred embodiment, by knowing shown in the figure that the high harmonic inhibition device of finding out this cavity filter comprises that pedestal 1 and cover are overlying on the lid 2 on the pedestal 1; Wherein:
This pedestal 1 is provided with the upper and lower input of connection and runs through groove 11, be provided with plural lead-out terminal 12 in pedestal 1 sidewall surfaces again, each lead-out terminal 12 has the metallic conductor 121 that extends in the pedestal 1, on pedestal 1, be concaved with again and supply metallic conductor 121 to stretch into and be the meander-like extension to be communicated in the resonant space 13 that input runs through groove 11, resonant space 13 convexes with resonance body 132 in plural chamber 131 bottom surfaces that are communicated with, each body 132 that resonates is concaved with groove 1321 downwards by end face, forms the dividing plate 133 of passage 14 again above connection place two sidewalls of adjacent chamber 131 are connected with.
Align respectively resonate body 132 grooves 1321 and each dividing plate 133 places on this lid 2 and be equipped with plural lockhole 21 respectively with internal thread, and each lockhole 21 internal lock is provided with to have external screw thread and can adjust the adjustment element 22 of doing upper and lower displacement, and plural number is adjusted element 22 and had resonance adjusting lever 221 that aligns each groove 1321 and the inhibition adjusting lever 222 that aligns each dividing plate 133 respectively.
See also Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, be the stereo appearance figure, three-dimensional exploded view, the stereo appearance figure of another embodiment pedestal, the stereo appearance figure of another embodiment pedestal of the utility model preferred embodiment, find out by knowing shown in the figure, when above-mentioned each member is assembled, lid 2 covers are overlying on pedestal 1 end face, and allowing the plural number resonance adjusting lever 221 of lid 2 stretch into respectively in the groove 1321 of the body 132 that respectively resonates, plural number suppresses 222 of adjusting levers and aligns respectively and each dividing plate 133; When each resonance adjusting lever 221 is adjusted height, just can allow the resonance adjusting lever 221 and the influence area of groove 1321 bottom surfaces change, when allowing resonance adjusting lever 221 reduce, the electromagnetic coupled amount reduces thereupon gradually, when resonance adjusting lever 221 raises, the electromagnetic coupled amount increases thereupon gradually, so adjusts the electromagnetic coupled amount between the plural number resonance body 132, to reach the purpose that operates accurately in required work bandwidth.
Moreover, respectively suppress the corresponding dividing plate 133 of adjusting lever 222 to the preset distance of interval by adjusting with each, reduce in passage 14 spaces that just can allow high order harmonic component transmit signal, just can reach the effect (seeing also shown in Figure 5) that suppresses high order harmonic component, because signal can produce the noise of high order harmonic component in transmission course, just after can allowing signal receive by this mode, certain filtering noise information makes signal more clear, undistorted.
See also Fig. 2, shown in Figure 4, it is the three-dimensional exploded view of the utility model preferred embodiment, the stereo appearance figure of another embodiment pedestal, find out by knowing shown in the figure, this dividing plate 133 can further be concaved with storage tank 1331 down at end face, stretch into inside by storage tank 1331 for suppressing adjusting lever 222, allow pedestal 1 when upper surface covers lid 2 and can't see the position that respectively suppresses adjusting lever 222, can avoid respectively suppressing touching when adjusting lever 222 is adjusted corresponding dividing plate 133, and produce can't filtering problem, owing to need not repeat to adjust the position that respectively suppresses adjusting lever 222, just can allow inhibition adjusting lever 222 more convenient when adjusting, rapidly, save time.
See also Fig. 2, Fig. 3, shown in Figure 4, be the three-dimensional exploded view of the utility model preferred embodiment, the stereo appearance figure of another embodiment pedestal, the stereo appearance figure of another embodiment pedestal, find out by knowing shown in the figure, the plural chamber 131 of this pedestal 1 can be rounded, rectangle or polygon, plural number chamber 131 can be connected in input and run through groove 11 1 sides or two sides, and also can be provided with resonance body 132 in each chamber 131 or not be provided with resonance body 132, resonance body 132 is only for to make the adjustment of electromagnetic coupled amount more accurate, good; In addition, lead-out terminal 12 also can be arranged at pedestal 1 one sidewalls or two sidewalls, and is non-so promptly limit to claim of the present utility model, as utilizes other modifications and equivalent structure to change, and all should in like manner be contained in the claim of the present utility model, closes and gives Chen Ming.
See also Fig. 1, shown in Figure 2, it is the stereo appearance figure of the utility model preferred embodiment, three-dimensional exploded view, another three-dimensional exploded view, side cutaway view, the opposite side pseudosection, find out by knowing shown in the figure, this plural number is adjusted the adjusting lever 221 and respectively suppress adjusting lever 222 and can be extended with screw terminal 223 in stretching out lid 2 end faces one end of respectively resonating of element 22, also can be in each adjusting lever 221 and respectively suppress adjusting lever 222 and stretch out lid 2 end faces one end and be arranged with nut 224 of resonating, its only tool make things convenient for the user after lid 2 is covered on pedestal 1 upper surface, can directly adjust respectively to resonate adjusting lever 221 and respectively suppress adjusting lever 222 function just and get final product with hand or by hand tool, non-so promptly limit to claim of the present utility model, as utilize other modifications and equivalent structure to change, all should in like manner be contained in the claim of the present utility model, close and give Chen Ming.
When the high harmonic inhibition of above-mentioned cavity filter of the present utility model is installed on actual use, for can having following advantage, as:
(1) this pedestal 1 is connected with the dividing plate 133 that the top forms passage 14 in connection place two sidewalls of adjacent chamber 131, and on lid 2, be equipped with the plural number that aligns each dividing plate 133 and suppress adjusting lever 222, respectively suppress adjusting lever 222 with dividing plate 133 during by adjusting to the interval preset distance, reduce in passage 14 spaces that just can allow high order harmonic component transmit signal, to reach the effect that suppresses noise that high order harmonic component is formed.
(2) this dividing plate 133 can be concaved with storage tank 1331 down at end face, allow pedestal 1 upper surface cover lid 2 after, each suppress adjusting lever 222 also can be when adjusting contact dividing plate 133, to have the effect of certain filtering.
So; the utility model is the high harmonic inhibition device that is primarily aimed at cavity filter; and can on pedestal 1, adjacent chamber 131 connections place of resonant space 13 be connected with the dividing plate 133 that the top forms passage 14; and on lid 2, be equipped with the plural number that aligns each dividing plate 133 and suppress adjusting lever 222; allow and respectively suppress adjusting lever 222 and adjust and dividing plate 133 at interval behind the preset distances; passage 14 can transmit the space minimizing of signal for high order harmonic component; reduce noise to suppress high order harmonic component; make signal clear; undistorted is main key protection point; yet; the above only is preferred embodiment of the present utility model; non-so promptly limit to claim of the present utility model; so the simple and easy modification and the equivalent structure that use the utility model specification and graphic content to do such as change; all should in like manner be contained in the claim of the present utility model, close and give Chen Ming.
More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within the protection range of the present utility model.
Claims (5)
1. the high harmonic inhibition device of a cavity filter is characterized in that: comprise that pedestal and cover overlay on the lid on the pedestal; Wherein:
This pedestal is provided with the upper and lower input of connection and runs through groove, be provided with plural lead-out terminal at the base side wall surface, each lead-out terminal has the metallic conductor that extends in the pedestal, on pedestal, be concaved with and supply metallic conductor to stretch into and be the meander-like extension to be communicated in the resonant space that input runs through groove, resonant space has the plural chamber of connection, and connection place of adjacent chamber two sidewalls are connected with the dividing plate that the top forms passage;
Align each chamber on this lid and each dividing plate place is equipped with the plural lockhole with internal thread respectively, and each lockhole internal lock is provided with to have external screw thread and can adjust the adjustment element of doing upper and lower displacement, plural number is adjusted element and is had the resonance adjusting lever that aligns each chamber respectively and align each dividing plate reducing the inhibition adjusting lever that high order harmonic component transmits signal space, and the adjusting lever that respectively resonates, suppresses adjusting lever and have spacing respectively and between each chamber bottom surface, each dividing plate.
2. the high harmonic inhibition device of cavity filter according to claim 1, it is characterized in that: the plural chamber bottom surface of this pedestal convexes with the resonance body respectively, and each body that resonates is concaved with the groove that stretches into for the resonance adjusting lever downwards by end face.
3. the high harmonic inhibition device of cavity filter according to claim 1 is characterized in that: each dividing plate of this pedestal further is concaved with for suppressing the storage tank that adjusting lever stretches into down at end face.
4. the high harmonic inhibition device of cavity filter according to claim 1 is characterized in that: the set plural number of this lid is adjusted the adjusting lever and respectively suppress adjusting lever and be extended with screw terminal in stretching out lid end face one end of respectively resonating of element.
5. the high harmonic inhibition device of cavity filter according to claim 1 is characterized in that: the set plural number of this lid is adjusted the adjusting lever and respectively suppress adjusting lever and be arranged with nut in stretching out lid end face one end of respectively resonating of element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205972172U CN201868545U (en) | 2010-11-05 | 2010-11-05 | Higher harmonic suppression device of cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205972172U CN201868545U (en) | 2010-11-05 | 2010-11-05 | Higher harmonic suppression device of cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201868545U true CN201868545U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205972172U Expired - Fee Related CN201868545U (en) | 2010-11-05 | 2010-11-05 | Higher harmonic suppression device of cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201868545U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720338A (en) * | 2012-02-27 | 2016-06-29 | 株式会社Kmw | Radio Frequency Filter Having Cavity Structure |
| WO2016172880A1 (en) * | 2015-04-29 | 2016-11-03 | 华为技术有限公司 | Dielectric filter |
| CN111193085A (en) * | 2020-02-24 | 2020-05-22 | 南京理工大学 | Double-passband balun filter |
-
2010
- 2010-11-05 CN CN2010205972172U patent/CN201868545U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720338A (en) * | 2012-02-27 | 2016-06-29 | 株式会社Kmw | Radio Frequency Filter Having Cavity Structure |
| US10090572B1 (en) | 2012-02-27 | 2018-10-02 | Kmw Inc. | Radio frequency filter having a hollow box with a resonance element disposed therein and a depression with dot peen structures therein |
| WO2016172880A1 (en) * | 2015-04-29 | 2016-11-03 | 华为技术有限公司 | Dielectric filter |
| CN111193085A (en) * | 2020-02-24 | 2020-05-22 | 南京理工大学 | Double-passband balun filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20171105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |