CN101938027B - Communication equipment, cavity filter and resonance tube thereof - Google Patents
Communication equipment, cavity filter and resonance tube thereof Download PDFInfo
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- CN101938027B CN101938027B CN 201010272238 CN201010272238A CN101938027B CN 101938027 B CN101938027 B CN 101938027B CN 201010272238 CN201010272238 CN 201010272238 CN 201010272238 A CN201010272238 A CN 201010272238A CN 101938027 B CN101938027 B CN 101938027B
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Abstract
The embodiment of the invention discloses a cavity filter cavity which comprises a cavity, a cover plate and a tuning device, wherein the cover plate is used for covering the cavity to form a resonant cavity, a resonance tube is arranged in the resonant cavity and has elasticity, the tuning device contacts the resonance tube, and the resonance tube generates elastic deformation by pushing the resonance tube through the tuning device to regulate the radio-frequency parameter of a cavity filter. The embodiment of the invention also discloses the resonance tube comprising an elastic deformation area and communication equipment using the cavity filter. The embodiment of the invention discloses a novel thought for regulating the radio-frequency parameter of the cavity filter, and meanwhile, the processing cost is lowered.
Description
[technical field]
The present invention relates to the wave filter technology field, particularly a kind of cavity body filter and resonatron thereof also relate to a kind of communication equipment that uses this cavity body filter.
[background technology]
Cavity body filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication.In the base station, filter is used for selecting signal of communication, clutter or interference signal that the filtering communication signal frequency is outer.
Cavity body filter generally comprises three classes, and the first kind is coaxial cavity filter, and Equations of The Second Kind is dielectric filter, and the 3rd class is waveguide filter.
With regard to coaxial cavity filter (the lower cavity body filter that is called for short), see also Fig. 1, Fig. 1 is the partial structurtes schematic diagram of cavity body filter in a kind of prior art.
As shown in Figure 1, cavity body filter comprises cavity 1, resonatron 2, tuning plug 3.Cavity 1 interior formation resonant cavity 4, resonatron 2 is fixed at the bottom of cavity 1, resonatron 2 is provided with shrinkage pool 5, one end of tuning plug 3 is inserted in the resonant cavity 4, and be plugged in the shrinkage pool 5, the other end of tuning plug 3 is located at the outside of resonant cavity 4, stretches into the radio frequency parameter that shrinkage pool 5 interior relative positions change to regulate this cavity body filter by tuning plug 3 is set.
In the research and practice process to prior art; the present inventor finds; in the prior art; it mainly is to regulate by the position relationship of tuning plug 3 and resonatron 2 that the radio frequency parameter of cavity body filter is regulated; the loose contact of resonant rod and cavity can affect product index usually; and the resonatron 2 of cavity body filter adopts the turning processing mode to make usually, and its complex procedures, material cost and processing cost are higher.
Therefore, need to provide a kind of novel solution that addresses the above problem.
[summary of the invention]
In order to solve the problem that cavity body filter has in the prior art, promote the performance of cavity body filter, the embodiment of the invention provides a kind of novel resonatron, and a kind of cavity body filter, and a kind of communication equipment that uses this cavity body filter also is provided simultaneously.
The embodiment of the invention solves the problems of the technologies described above the technical scheme of taking and provides a kind of cavity body filter, comprise cavity, cover plate and tuner, this cover plate is used for this cavity of capping to form resonant cavity, be provided with resonatron in this resonant cavity, this resonatron has elasticity, this tuner contacts with this resonatron, by this this resonatron of tuner pushing tow so that the radio frequency parameter of this cavity body filter is regulated in resonatron generation elastic deformation; Wherein, described resonatron comprises:
Depressed part; And
The junction surface, described junction surface stretches out from the edge of opening of described depressed part, is used for engaging with the cover plate of cavity body filter;
When described resonatron was subject to the thrusting action power of tuner, elastic deformation occured in described depressed part and/or described junction surface;
Wherein, described tuner is tuning plug, and on described cover plate, also be provided with tuning screw, described tuning screw is relative with described depressed part, described tuning plug passes described tuning screw, and against the bottom surface of the depressed part of described resonatron, wherein, the pushing tow by described tuning plug moves to impel described resonatron generation elastic deformation.
The embodiment of the invention also provides a kind of resonatron, and this resonatron comprises the elastically deformable district, and this resonatron can when being subject to the pushing tow of tuner, be somebody's turn to do so that elastic deformation occurs in this elastically deformable district; Wherein, described resonatron comprises:
Depressed part; And
The junction surface, described junction surface stretches out from the edge of opening of described depressed part, is used for engaging with the cover plate of cavity body filter;
When described resonatron was subject to the thrusting action power of tuner, elastic deformation occured in described depressed part and/or described junction surface;
Wherein, described tuner is tuning plug, and on described cover plate, also be provided with tuning screw, described tuning screw is relative with described depressed part, described tuning plug passes described tuning screw, and against the bottom surface of the depressed part of described resonatron, wherein, the pushing tow by described tuning plug moves to impel described resonatron generation elastic deformation.
The embodiment of the invention also provides a kind of communication equipment, and it comprises above-mentioned cavity body filter, and this cavity body filter is located at the transceiver circuit part of this communication equipment, is used for signal is selected.
The communication equipment that the embodiment of the invention provides, cavity body filter and resonatron thereof provide a kind of brand-new cavity body filter radio frequency parameter regulative mode compared to communication equipment of the prior art, cavity body filter and resonatron thereof.Can regulate by the elastic deformation of resonatron the radio frequency parameter of cavity body filter.Reduced simultaneously the cost of resonatron turning processing in the prior art.Its regulative mode is unique, functional, and manufacturing process is more simple, with low cost.
[description of drawings]
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing:
Fig. 1 is the partial structurtes schematic diagram of cavity body filter in a kind of prior art;
Fig. 2 is the partial structurtes schematic diagram of the cavity body filter that comprises resonatron according to one preferred embodiment of the present invention; And
Fig. 3 be according to one preferred embodiment of the present invention resonatron and the schematic cross-section of tuner.
[embodiment]
Below in conjunction with the accompanying drawing of the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention discloses a kind of cavity body filter, comprise cavity, cover plate and tuner, this cover plate is used for this cavity of capping to form resonant cavity, be provided with resonatron in this resonant cavity, this resonatron has elasticity, this tuner contacts with this resonatron, by this this resonatron of tuner pushing tow so that the radio frequency parameter of this cavity body filter is regulated in resonatron generation elastic deformation.
The embodiment of the invention also provides a kind of resonatron, and this resonatron comprises the elastically deformable district, and this resonatron can when being subject to the pushing tow of tuner, be somebody's turn to do so that elastic deformation occurs in this elastically deformable district.
The embodiment of the invention also provides a kind of communication equipment, and it comprises above-mentioned cavity body filter, and this cavity body filter is located at the transceiver circuit part of this communication equipment, is used for signal is selected.
Describe the present invention below in conjunction with specific embodiment.
Embodiment one, a kind of cavity body filter.See also Fig. 2, Fig. 2 is the partial structurtes schematic diagram that comprises according to an embodiment of the invention the cavity body filter 1 of resonatron 30.
As shown in Figure 2, the cavity body filter 1 of the embodiment of the invention mainly comprises cavity 10, cover plate 20, and this cover plate 20 is used for this cavity 10 of capping to form resonant cavity, is provided with resonatron 30 in this resonant cavity, and wherein, this resonatron 30 has elasticity.This cavity body filter 1 also comprises tuner 40, and this tuner 40 contacts with this resonatron 30, by this this resonatron 30 of tuner 40 pushing tows so that the radio frequency parameter that this cavity body filter 1 is regulated in elastic deformations occurs in resonatron 30.In the present embodiment, can regulate by the elastic deformation of resonatron the radio frequency parameter of cavity body filter.
A kind of brand-new cavity body filter radio frequency parameter adjustment structure that present embodiment provides.Can regulate by the elastic deformation of resonatron the radio frequency parameter of cavity body filter.Simultaneously, because elastic resonatron can take the mode of stamped sheet metal to process, greatly reduce the cost of resonatron turning processing in the prior art.
In the present embodiment, resonatron 30 can comprise the elastically deformable district, and this elastically deformable is distinguished the regional area that is distributed in this resonatron 30, and perhaps these resonatron 30 integral body all belong to the elastically deformable district.The resonatron 30 that the embodiment of the invention provides can be stamped to form type by sheet metal, and strain can occur when being subject to extraneous thrusting action power this resonatron 30.
In the present embodiment, this resonatron 30 can comprise depressed part 31 and junction surface 32, wherein, this junction surface 32 stretches out from the edge of opening of this depressed part 31, be used for engaging with cavity 10 or the cover plate 20 of cavity body filter 1, concrete combination can be taked the fixed forms such as welding, riveted joint or clamping, and for example: among Fig. 2, the junction surface 32 of this resonatron 30 is welded on this cover plate 20.And in other embodiments, the junction surface 32 of this resonatron 30 also can be locked between this cover plate 20 and this cavity 10.Concrete resonatron and the fixed form between the cover plate are not construed as limiting the invention.
In the present embodiment, when this resonatron 30 was subject to the thrusting action power of tuner 40, elastic deformation occured in this depressed part 31 and/or this junction surface 32.Concrete, tuner 10 can be tuning plug, and on the cover plate 20 of cavity body filter 1, also be provided with tuning screw 21, this tuning screw 21 is relative with this depressed part 31, this tuning plug passes this tuning screw 21, and against the bottom surface of the depressed part 31 of this resonatron 30, the pushing tow by this tuning plug moves to impel this resonatron 30 that elastic deformations occur.
In a preferred embodiment of the invention, cavity 10 adopts the metal manufacturing, and it can be processed as square cavity or circular cavity.The side of cavity 10 is provided with some screws 11, and screw 11 is used for cover plate 20 is fixedly installed in cavity 10.Cover plate 20 has the area coverage with cavity 10 openings couplings, and cover plate 20 cooperates with some screws 11 by some screws 50 and is sealingly fastened on the cavity 10 formation resonant cavity (identifying).Sealing can realize electromagnetic shielding, prevents leakage signal.In addition, cover plate 20 is provided with tuning screw 21, this tuning screw 21 is provided with screw thread, these tuning screw 21 tops are provided with clamp nut 22, cooperate with tuning screw 21 spirals of cover plate 20 by the screw thread on the tuner 40 and to carry out parameter and regulate, after adjusting is finished, can be by clamp nut 22 with tuner 40 locking, to keep the final position after tuning.Need to prove that in order to narrate conveniently, only shown a resonant cavity among the figure in this article, the cavity body filter in the practical application may comprise a plurality of resonant cavitys, cavity body filter carries out work by the coupling each other of a plurality of resonant cavitys.
The below will introduce the tuning configuration mode according to the cavity body filter of the embodiment of the invention in detail.Specifically, tuning plug 40 passes tuning screw 21.The first end 41 of tuning plug 40 stretches in the depressed part 31, lean with the bottom surface (not sign) of this depressed part 31, the second end 42 of this tuning plug 40 is positioned at the resonant cavity outside, the second end 42 of this tuning plug 40 is provided with the screw thread with tuning screw 21 coupling of cover plate 20, tuning screw 21 spirals of the second end 42 relative cover plates 20 by tuning plug 40 cooperate and carry out parameter and regulate, and impel the first end 41 of tuning plug 40 to carry out the action of pushing tow resonatron 30 bottoms.In addition, the second end 42 of this tuning plug 40 further is provided with the adjusting portion 421 of being convenient to regulate.This adjusting portion 421 can be to be located at a word or the cross recess (not shown) of the second end 42 of this tuning plug 40, with convenient artificial or machine automation adjusting.Certainly, tuner is not limited as above-mentioned tuning plug 40, and it also can be that those skilled in the art know or habitual other can be realized the device of tuber function.
In embodiments of the present invention, tuning screw 21 spirals of the second end 42 relative cover plates 20 by tuning plug 40 cooperate and carry out parameter and regulate, impel the first end 41 of tuning plug 40 to carry out the action of pushing tow resonatron 30 bottoms, after adjusting is finished, again by clamp nut 22 with tuning plug 40 locking, to keep the final position after tuning.Because resonatron 30 has elasticity, the pushing tow action meeting of tuning plug 40 is so that integral body or local elasticity's distortion occur in resonatron 30, the bottom of resonatron 30 depressed parts 31 changes with respect to the distance of cavity 10 bottoms (not sign), and then changes the radio frequency parameter of cavity body filter 1.
Certainly, the cavity body filter 1 of the embodiment of the invention also can comprise various other conventional components or structure, herein, present embodiment is only to being described with present embodiment inventive point relevant portion, other concrete parts or structure, can with reference to existing conventional implementation, not be construed as limiting the invention.
Embodiment two, a kind of communication equipment.It comprises above-mentioned cavity body filter, and this cavity body filter is located at the transceiver circuit part of this communication equipment, is used for signal is selected.
Embodiment three, a kind of resonatron.See also Fig. 3, Fig. 3 be according to one preferred embodiment of the present invention resonatron 200 and the schematic cross-section of tuner 240.This resonatron 200 comprises the elastically deformable district, and this resonatron 200 is when being subject to the pushing tow of tuner 240, so that elastic deformation occurs in this elastically deformable district.
In embodiments of the present invention, elastically deformable is distinguished the regional area that is distributed in this resonatron 200, or these resonatron 200 integral body all belong to the elastically deformable district.Strain occurs in the resonatron 200 that the embodiment of the invention provides moulding by sheet metal punching press or similar technique when this resonatron 200 is subject to extraneous thrusting action power.
In a preferred embodiment, resonatron 200 comprises depressed part 231 and junction surface 232, and this junction surface 232 stretches out from the edge of opening of this depressed part 231.Because so resonatron 200 moulding by sheet metal punching press or similar technique is on the whole elastically deformable, at least the regional area deformability of resonatron 200 of resonatron 200.Also be that resonatron comprises the elastically deformable district, the elastically deformable district can be distributed in the regional area of resonatron, or resonatron integral body all belongs to the elastically deformable district.Be that depressed part and/or junction surface all elastic deformation can occur when being subject to External Force Acting, for example the indicated zone of attached number in the figure s is the elastically deformable district.But it is not limited to the indicated part of s, and those skilled in the art have the characteristic of elastically deformable to this resonatron easily mutually on the whole.
In conjunction with Fig. 1, those skilled in the art understand easily, resonatron 200 can be welded on the cover plate 20 by its junction surface 232, perhaps, junction surface 232 can to around extend to the joint of cover plate 20 and cavity 10, and be locked between cover plate 20 and cavity 10, be fixed on the cavity 10 by some screws 50 with cover plate 20.
Resonatron 200 elastically deformables in the embodiment of the invention, above embodiment have illustrated that the particular location in elastically deformable district is unrestricted.Can be distributed in the regional area of resonatron such as the elastically deformable district, perhaps resonatron integral body all belongs to the elastically deformable district.The embodiment of the invention has following modification at least simultaneously:
1: the mounting means of resonatron and position are not subjected to the restriction of above embodiment, in the embodiment of the invention resonatron can by the welding, the riveted joint or other etc. mode be installed on the cover plate 20.
2: impel the external influence power of resonatron generation modification not to be subject to tuner and contact to apply jacking force with depressed part 31 bottoms.For example tuner can contact to apply jacking force with the outside of the depressed part of resonatron or with junction surface 32, as long as can realize the elastic deformation of resonatron.Certainly, the mounting means of tuner also needs corresponding the adjustment, such as, directly be installed on the cavity or change as required installation direction etc.
The disclosed resonatron of the embodiment of the invention has elasticity, utilize the elastic deformation of resonatron to change the radio frequency parameter of cavity body filter, it designs unique, not only functional, and in order to realize elastic deformation, the thinner thickness of resonatron, the resonant rod that can adopt the punching stretch mode to make, its manufacturing process is simple and easy, cost is cheaper.This is had the transceiver circuit part that flexible resonatron is applied to cavity body filter and communication equipment, not only improved the performance of equipment, effectively reduced equipment cost simultaneously.
It is pointed out that the terms such as " first " mentioned, " second " only are the letter symbols that adopts as required in the embodiment of the invention one embodiment, in practice, be not limited to this, and this letter symbol can Alternate.
In the above-described embodiments, only the embodiment of the invention has been carried out exemplary description, but those skilled in the art can carry out various modifications to the embodiment of the invention after reading present patent application in the situation of the spirit and scope that do not break away from the embodiment of the invention.
Claims (9)
1. cavity body filter, comprise cavity, cover plate, described cover plate is used for the described cavity of capping to form resonant cavity, be provided with resonatron in the described resonant cavity, it is characterized in that described resonatron has elasticity, described cavity body filter also comprises: tuner, described tuner contacts with described resonatron, by the described resonatron of described tuner pushing tow so that the radio frequency parameter of described cavity body filter is regulated in resonatron generation elastic deformation;
Wherein, described resonatron comprises:
Depressed part; And
The junction surface, described junction surface stretches out from the edge of opening of described depressed part, is used for engaging with the cover plate of cavity body filter;
When described resonatron was subject to the thrusting action power of tuner, elastic deformation occured in described depressed part and/or described junction surface;
Wherein, described tuner is tuning plug, and on described cover plate, also be provided with tuning screw, described tuning screw is relative with described depressed part, described tuning plug passes described tuning screw, and against the bottom surface of the depressed part of described resonatron, wherein, the pushing tow by described tuning plug moves to impel described resonatron generation elastic deformation.
2. cavity body filter according to claim 1 is characterized in that, described resonatron comprises the elastically deformable district, and described elastically deformable is distinguished the regional area that is distributed in described resonatron, or described resonatron integral body all belongs to the elastically deformable district.
3. cavity body filter according to claim 1 is characterized in that, described resonatron is stamped to form type by sheet metal, and strain occurs when described resonatron is subject to extraneous thrusting action power.
4. cavity body filter according to claim 1 is characterized in that, the junction surface of described resonatron is welded on the described cover plate.
5. cavity body filter according to claim 1 is characterized in that, the junction surface of described resonatron is locked between described cover plate and described cavity.
6. a communication equipment is characterized in that, it comprises according to claim 1 the described cavity body filter of any one in 5, and described cavity body filter is located at the transceiver circuit part of described communication equipment, is used for signal is selected.
7. a resonatron is characterized in that, described resonatron comprises the elastically deformable district, and described resonatron is when being subject to the pushing tow of tuner, so that elastic deformation occurs in described elastically deformable district;
Wherein, described resonatron comprises:
Depressed part; And
The junction surface, described junction surface stretches out from the edge of opening of described depressed part, is used for engaging with the cover plate of cavity body filter;
When described resonatron was subject to the thrusting action power of tuner, elastic deformation occured in described depressed part and/or described junction surface;
Wherein, described tuner is tuning plug, and on described cover plate, also be provided with tuning screw, described tuning screw is relative with described depressed part, described tuning plug passes described tuning screw, and against the bottom surface of the depressed part of described resonatron, wherein, the pushing tow by described tuning plug moves to impel described resonatron generation elastic deformation.
8. resonatron according to claim 7 is characterized in that, described elastically deformable is distinguished the regional area that is distributed in described resonatron, or described resonatron integral body all belongs to the elastically deformable district.
9. resonatron according to claim 7 is characterized in that, described resonatron is stamped to form type by sheet metal, and strain occurs when described resonatron is subject to extraneous thrusting action power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010272238 CN101938027B (en) | 2010-09-07 | 2010-09-07 | Communication equipment, cavity filter and resonance tube thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010272238 CN101938027B (en) | 2010-09-07 | 2010-09-07 | Communication equipment, cavity filter and resonance tube thereof |
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| CN101938027A CN101938027A (en) | 2011-01-05 |
| CN101938027B true CN101938027B (en) | 2013-04-17 |
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| CN 201010272238 Active CN101938027B (en) | 2010-09-07 | 2010-09-07 | Communication equipment, cavity filter and resonance tube thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709628A (en) * | 2012-02-03 | 2012-10-03 | 苏州天擎电子通讯有限公司 | Cavity filter |
| CN103107389A (en) * | 2012-11-16 | 2013-05-15 | 深圳市大富科技股份有限公司 | Cavity filter |
| CN103650237B (en) * | 2013-08-09 | 2015-12-30 | 华为技术有限公司 | A kind of filter tuning apparatus and filter |
| CN106159395B (en) * | 2015-04-16 | 2021-01-08 | 深圳市大富科技股份有限公司 | Cavity filter, duplexer and radio remote unit |
| BR112019014267A2 (en) | 2017-01-13 | 2020-03-03 | Huawei Technologies Co., Ltd. | CAVITY RESONATOR, FILTER AND COMMUNICATIONS DEVICE |
| CN112236899A (en) * | 2018-04-20 | 2021-01-15 | 上海诺基亚贝尔股份有限公司 | Filter arrangement and method |
| CN110534854A (en) * | 2019-07-26 | 2019-12-03 | 苏州诺泰信通讯有限公司 | A kind of Novel Filter frequency reducing structure |
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| CN201417811Y (en) * | 2009-06-10 | 2010-03-03 | 大富（深圳）科技有限公司 | Resonating tube and cavity filter with the resonating tube |
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| CN1222257A (en) * | 1996-06-19 | 1999-07-07 | 艾利森电话股份有限公司 | Integrated filter |
| CN201417811Y (en) * | 2009-06-10 | 2010-03-03 | 大富（深圳）科技有限公司 | Resonating tube and cavity filter with the resonating tube |
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