CN202121036U - Waveguide filter of coupling medium - Google Patents
Waveguide filter of coupling medium Download PDFInfo
- Publication number
- CN202121036U CN202121036U CN 201120171336 CN201120171336U CN202121036U CN 202121036 U CN202121036 U CN 202121036U CN 201120171336 CN201120171336 CN 201120171336 CN 201120171336 U CN201120171336 U CN 201120171336U CN 202121036 U CN202121036 U CN 202121036U
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- waveguide filter
- resonator
- filter
- resonators
- dielectric waveguide
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Abstract
The utility model discloses a waveguide filter of coupling medium, comprising a body composed of a plurality of resonators. More than two resonators of a plurality of the resonators are electrically connected. The waveguide filter of coupling medium has a better attenuation characteristic than the attenuation characteristic of the conventional product at an adjacent frequency band of a medium waveguide filter. According to the utility model, the medium waveguide filter can make the chosen and needed over two resonators in a plurality of the resonators connected in an electrical manner, according to the need of a designer; the effect of replacing insertion into a sensor is achieved; and any good attenuation characteristic is guaranteed at a required frequency band. A designer can design a required filter according to the will according to the filter of the structure.
Description
Technical field
The utility model relates to a kind of filter, particularly a kind of couplant waveguide filter.
Background technology
Along with popularizing of mobile communication device, therefore the frequency bandwidth of using at present needs higher frequency to satisfy the communication need of communicator can not satisfy instructions for use gradually.Require the electric energy of the above high frequency of microwave or the transport tape of signal transmission usefulness to adopt waveguide to transmit at present.The dielectric waveguide filter is that waveguide is inner with filling medium, is a kind of filter that can produce or filter the technical ability such as frequency that need simultaneously.Direction of principal axis length and the identical filter of the employed frequency bandwidth of filter that the initial coaxial type dielectric waveguide filter that adopts of dielectric waveguide filter is the dielectric piece; Lead to axial hole inner formation of filter projection, the surface adopts conductive material to cover.That is to say that this filter one end is open, other end short circuit can be worked with resonator simultaneously.
But the coaxial type dielectric in above-mentioned is to use simple T EM type, so the shortcoming that has the Insertion Loss characteristic to descend.In order to overcome above shortcoming, what developed is exactly with the technological in the past dielectric waveguide filter of continuity shown in Figure 1.This filter has the medium projection of several perpendicular grooves in the both sides in long face vertical direction.4 faces except that the both ends of the surface of this medium projection all cover with conductive material, form conductive layer.Though the technological in the past dielectric waveguide filter that is developed of this continuity has overcome the shortcoming of above-mentioned coaxial type dielectric waveguide filter, has problems on the attenuation characteristic of adjacent frequency bands.And, need use the various different services of adjacent frequency bands in diversified communication service.So page or leaf existing problems in the isolation between frequency characteristic of filter that requires and the service.
The utility model content
Deficiency to above-mentioned prior art; The technical problem that the utility model will solve provides a kind of couplant waveguide filter that can on dielectric waveguide filter adjacent frequency bands, can guarantee good attenuation characteristic, and this couplant waveguide filter can also can arbitrarily be guaranteed the effect of the attenuation characteristic of dielectric waveguide filter on the frequency band of needs.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of couplant waveguide filter, it comprises: by the body that several resonators are formed, plural resonator is electrically connected each other in said several resonators.
Preferably, said body two long side surface vertical direction form most perpendicular grooves, and four sides of said body are coated with conductive material.
Preferably, said plural resonator adopts deformability trap cable to be electrically connected each other, and said deformability trap cable is positioned on the side of said body.
Preferably, said plural resonator forms connecting circuit on a side, and said connecting circuit is provided with conductive materials.
Technique scheme has following beneficial effect: the dielectric waveguide filter ratio in the utility model product is in the past obtained better attenuation characteristic on dielectric waveguide filter adjacent frequency bands.And; The dielectric waveguide filter of the utility model can need couple together the plural resonator that selection in several resonators needs according to the designer with electrical form; Play the effect that replaces inserting transducer, can on the frequency band that requires, guarantee good attenuation characteristic arbitrarily.That is to say that the designer can be according to the filter of this structure filter according to any design demand of wish of oneself, thereby make things convenient for designer's design, accelerate the release of desin speed and new product.
Description of drawings
Fig. 1 is the oblique view of dielectric waveguide filter in the past.
Fig. 2 is the oblique view of a kind of instance of dielectric waveguide filter in the utility model.
Fig. 3 is the oblique view of the another kind of instance of dielectric waveguide filter in the utility model.
Fig. 4 is the equivalent circuit figure of Fig. 2 and Fig. 3.
Fig. 5 is the performance diagram of dielectric waveguide filter and the utility model dielectric waveguide filter in the past.
Embodiment
Below be the feasible example in detail of dielectric waveguide filter in the invention described above, with reference to Fig. 2-5.But interest field of the present invention is not confined under the situation that does not exceed technological emphasis of the present invention, in the relevant technologies scope, have the personnel of conventional knowledge to change according to wish in the following fortune example scope.And employed term or word can not be confined to routine or the speech typical meaning is explained in this detail specifications and the application range.The inventor is for the content of being invented that shows of maximum, at definition term that can be the properest in principle, explains with technical meaning the most according to the invention and notion.Therefore in dielectric waveguide filter of the present invention, there is multiple instance according to the profile or the shape of body, also there is multiple instance in two above resonators with the difference of electrical form method of attachment in several resonators.
Below be postulated mechanism shape when being cuboid, plural resonator is carried out detailed explanation with electric property form connected mode.
As shown in Figure 2; Be a kind of instance of the dielectric waveguide filter among the present invention, it comprise by several resonator 211-216 connect and compose body 210, among these several resonator 211-216 more than two disjunct resonator with electrical form connect the changeable type trap cable 220 of usefulness and be connected with body 210 comprise the substrate 230 of importing/go out terminal.This body 210 is that several resonator 211-216 form, and the long face vertical direction in body 210 both sides forms several perpendicular grooves.Except the both ends of the surface of body 210 other all covered by conductive material on four sides.
As shown in Figure 3, the another kind of embodiment of the dielectric waveguide filter among the present invention comprises that several resonator 211-216 form body 210; The one side of non-conterminous two above resonators has formed hole 321,322 among these several resonator 211-216; For the circuit 323 of connecting hole 321,322 in the formation of body 210 sides; In several resonator 211-216,, be inserted in the hole 321,322 and the conductor material 324 that forms circuit 323 in order to connect plural resonator; Be connected the tape input of body 210/the go out substrate 230 of terminal.The body of wherein being said among body 210 and substrate 230 and the first kind of embodiment 210 is identical with substrate 230.
Hole 321,322 is formed on the designer in order to connect among several resonator 211-216 more than two on the one side of non-conterminous resonator.Only connecting non-conterminous resonator is to be what to connect when forming body 210 because of adjacent resonator.Connecting circuit 323 is the sides that are formed on body 210 for connecting hole 321,322.This connecting circuit 323 is not connected with the plural resonator that forms hole 321,322 resonator in addition.Just among Fig. 3,, on second resonator 212 and the 5th resonator 215, respectively formed hole 321,322 in order to connect second resonator 212 and the 5th resonator 215.Connecting circuit 323 is formed on the surface of second to the 5th resonator 212-215.323 of this connecting circuits couple together with second resonator 212 and the 5th resonator 215 usefulness electrical form, are not connected with other resonator 213,214.
As shown in Figure 4, be the equivalent circuit figure of Fig. 2 and Fig. 3, it comprises several resonator 211-216 of series connection; Second resonator 212 is connected the inductor 410 of usefulness with the 5th resonator 215; Electric storage means between several resonator 211-216; And import/go out terminal and constitute.Above-mentioned inductor 410 just is equivalent to the trap cable 220 among Fig. 2, or the hole among Fig. 3 321,322 and circuit 223, electric conductor material 224.
Dielectric waveguide filter among the present invention is to guarantee on the frequency band that requires, to obtain good attenuation characteristic to the effect that the resonance that needs utilizes inductor to couple together.The utility model and dielectric waveguide filter are in the past compared, and comparative result is as shown in Figure 5, and the dielectric waveguide filter among visible the present invention was better than the dielectric waveguide filter attenuation characteristic that technology is in the past extended.
In sum, the product among the present invention is obtained better attenuation characteristic than technological extension product in the past on dielectric waveguide filter adjacent frequency bands.And the present invention can be according to designer's the plural resonator that need need selection in several resonators; Couple together with electrical form; Replace inserting the effect of transducer; Can also on the frequency band that requires, guarantee good attenuation characteristic arbitrarily, can be when just the designer designs the dielectric waveguide filter according to the filter of any design demand of wish of oneself.
Claims (4)
1. couplant waveguide filter, it is characterized in that it comprises: by the body that several resonators are formed, plural resonator is electrically connected each other in said several resonators.
2. couplant waveguide filter according to claim 1 is characterized in that: said body two long side surface vertical direction form most perpendicular grooves, and four sides of said body are coated with conductive material.
3. couplant waveguide filter according to claim 1 is characterized in that: said plural resonator adopts deformability trap cable to be electrically connected each other, and said deformability trap cable is positioned on the side of said body.
4. couplant waveguide filter according to claim 1 is characterized in that: said plural resonator forms connecting circuit on a side, and said connecting circuit is provided with conductive materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120171336 CN202121036U (en) | 2011-05-26 | 2011-05-26 | Waveguide filter of coupling medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120171336 CN202121036U (en) | 2011-05-26 | 2011-05-26 | Waveguide filter of coupling medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202121036U true CN202121036U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120171336 Expired - Fee Related CN202121036U (en) | 2011-05-26 | 2011-05-26 | Waveguide filter of coupling medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202121036U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618122A (en) * | 2013-12-16 | 2014-03-05 | 武汉凡谷电子技术股份有限公司 | Dielectric waveguide filter |
| CN105720332A (en) * | 2016-03-27 | 2016-06-29 | 夏治政 | Dielectric filter |
| CN108365308A (en) * | 2018-02-05 | 2018-08-03 | 重庆思睿创瓷电科技有限公司 | Dielectric waveguide filter and its attaching method |
| US10193205B2 (en) | 2013-06-04 | 2019-01-29 | Huawei Technologies Co., Ltd. | Dielectric resonator, dielectric filter using dielectric resonator, transceiver, and base station |
| CN111384555A (en) * | 2018-12-31 | 2020-07-07 | 深圳市大富科技股份有限公司 | Dielectric filter, communication equipment, method for preparing dielectric block and dielectric filter |
-
2011
- 2011-05-26 CN CN 201120171336 patent/CN202121036U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10193205B2 (en) | 2013-06-04 | 2019-01-29 | Huawei Technologies Co., Ltd. | Dielectric resonator, dielectric filter using dielectric resonator, transceiver, and base station |
| US10741900B2 (en) | 2013-06-04 | 2020-08-11 | Huawei Technologies Co., Ltd. | Dielectric resonator, dielectric filter using dielectric resonator, transceiver, and base station |
| US11018405B2 (en) | 2013-06-04 | 2021-05-25 | Huawei Technologies Co., Ltd. | Dielectric resonator, dielectric filter using dielectric resonator, transceiver, and base station |
| CN103618122A (en) * | 2013-12-16 | 2014-03-05 | 武汉凡谷电子技术股份有限公司 | Dielectric waveguide filter |
| CN103618122B (en) * | 2013-12-16 | 2017-05-17 | 武汉凡谷电子技术股份有限公司 | dielectric waveguide filter |
| CN105720332A (en) * | 2016-03-27 | 2016-06-29 | 夏治政 | Dielectric filter |
| CN108365308A (en) * | 2018-02-05 | 2018-08-03 | 重庆思睿创瓷电科技有限公司 | Dielectric waveguide filter and its attaching method |
| CN111384555A (en) * | 2018-12-31 | 2020-07-07 | 深圳市大富科技股份有限公司 | Dielectric filter, communication equipment, method for preparing dielectric block and dielectric filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20120526 |