CN102569978A - Dielectric resonator tuning structure and tuning method - Google Patents
Dielectric resonator tuning structure and tuning method Download PDFInfo
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- CN102569978A CN102569978A CN2011104292217A CN201110429221A CN102569978A CN 102569978 A CN102569978 A CN 102569978A CN 2011104292217 A CN2011104292217 A CN 2011104292217A CN 201110429221 A CN201110429221 A CN 201110429221A CN 102569978 A CN102569978 A CN 102569978A
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Abstract
The invention provides a dielectric resonator tuning structure and a dielectric resonator tuning method. The structure comprises a cavity, a dielectric resonance pole, a tuning component, a tuning cover plate, a nut and bolts, wherein the dielectric resonance pole is fixedly arranged at the bottom of the cavity; the tuning component is arranged on the tuning cover plate; the nut is arranged at the top end of the tuning component, and is used for locking the tuning component after tuning is finished; and the tuning cover plate is fixed on the cavity through the bolts. The tuning component is moved up and down by rotating a plastic screw on the tuning component to change a distance between a metal sheet and the dielectric resonance pole, so that required resonance frequency can be obtained by properly regulating the distance in a small space, and specifically, frequency is increased if the plastic screw is screwed in, and is decreased if the plastic screw is screwed out; and in addition, the production cost is decreased, the production efficiency of the product is improved, and the market share is increased.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of dielectric resonator tuning structure and tuning methods.
Background technology
Along with the high speed development of mobile communication business, communication system frequency resource day is becoming tight, and how to control and reduces mutual interference mutually between communication system, reduces system's construction cost and seems very crucial.
The volume of communication system frequency-selecting device filter, weight and system's construction cost tight association, performances such as differential loss, inhibition then directly influence the quality of systematic function.Therefore, having the dielectric filter of inserting consumption and the outer suppression characteristic of high-band in little, in light weight, the high Q value of volume, the low strap is one of good solution of this problem.But with respect to the common metal resonator, the dielectric resonator debugging difficulty is big, is difficult for tuningly, brings very big puzzlement for the realization and the batch process of whole filter performance.
Summary of the invention
The object of the present invention is to provide a kind of dielectric resonator tuning structure and tuning methods, can be implemented in and obtain bigger frequency tuning range in the less tuning space.
The objective of the invention is to realize through following technical scheme.
A kind of dielectric resonator tuning structure comprises: cavity, medium resonant rod, tuning block, tuning cover plate, nut and screw, and said medium resonant rod is fixedly mounted on cavity bottom; Said tuning block is installed on the tuning cover plate, and nut is equipped with on said tuning block top, behind tuning the finishing through nut check; Said tuning cover plate passes through screw on cavity.
Preferably, said tuning block comprises a plastic cement screw rod and a sheet metal, and said sheet metal is injected and molded in the plastic cement screw rod.
Preferably, said sheet metal is a circular configuration, its surface electrical copper facing or silver.
Preferably, said sheet metal centre bore has spline structure, to guarantee that sheet metal does not rotate around the plastic cement screw rod.
Preferably, said plastic cement screw rod screws in or screws out plastic cement screw rod, the distance between scalable sheet metal and the medium resonant rod in tuning cover plate.
Preferably, said cavity is one-body molded by aluminium alloy, and its electroplating surface, inner chamber are the block structure of circular cavity.
A kind of dielectric resonator tuning methods makes tuning block move up and down through the plastic cement screw rod on the rotary tuning assembly, thereby realizes the variation of distance between sheet metal and the medium resonant rod, obtains required resonance frequency through suitable distance adjustment.
The present invention compared with prior art; Beneficial effect is: the present invention makes tuning block move up and down through the plastic cement screw rod on the rotary tuning assembly, with the variation of distance between realization sheet metal and the medium resonant rod, thus can be in less space; Through suitable distance adjustment; Screw in then frequency and strengthen, screw out then that frequency reduces, obtain required resonance frequency with this.Help simultaneously reducing production costs, improve production efficient, enlarge occupation rate of market.
Description of drawings
Fig. 1 is a dielectric resonator tuning structure stereogram of the present invention;
Fig. 2 is a dielectric resonator tuning structure decomposing schematic representation of the present invention;
Fig. 3 is a tuning block structural representation in the dielectric resonator tuning structure of the present invention;
Fig. 4 is the sketch map that dielectric resonator tuning structure of the present invention is not installed cover plate;
Fig. 5 is the cutaway view of B-B direction among Fig. 4 of the present invention;
Fig. 6 is that dielectric resonator is realized schematic diagram.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Before introducing the present invention, introduce dielectric resonator operation principle down earlier:
As shown in Figure 6, when electromagnetic wave was got into medium with low dielectric constant by high dielectric constant, reflection and refraction can take place on interface, when incidence angle during more than or equal to critical angle, electromagnetic wave generation total reflection.The dielectric constant of medium is high more, and critical angle is more little, and total reflection phenomenon is perfect more, forms the magnetic wall at dielectric surface, and the medium block that Ci Bisuo surrounds constitutes dielectric resonator.Because the medium quality factor is very high, the electromagnetic energy overwhelming majority concentrates in the dielectric resonator, and electromagnetic viscosimeter just can be kept down, and therefore, the usable medium resonator is made filter.
See also shown in Fig. 1-5, a kind of dielectric resonator tuning structure provided by the invention comprises: cavity 1, medium resonant rod 2, tuning block 3, tuning cover plate 4, nut 5 and screw 6, medium resonant rod 2 are installed on cavity 1 bottom, and fix with screw; Tuning block 3 is installed on the tuning cover plate 4, and wherein, nut 5 is equipped with on tuning block 3 tops, and the tuning back that finishes uses nut 5 to lock; And be fixed on the cavity 1 through the tuning cover plate assembly that screw 6 will assemble.
Wherein, cavity 1 is one-body molded by aluminium alloy, and its electroplating surface, inner chamber are the block structure of circular cavity, and medium resonant rod 2 is equipped with in the inside of cavity 1.
Among Fig. 3; Said tuning block 3 comprises a plastic cement screw rod 31 and a sheet metal 32, and wherein plastic cement screw rod 31 adopts PEI materials such as (Polyetherimide PEI); Sheet metal 32 is a circular configuration, and its surface electrical copper facing or silver also are injected and molded in the plastic cement screw rod 31.Wherein, sheet metal 32 centre bores have spline structure, do not rotate around plastic cement screw rod 31 to guarantee sheet metal 32.
Among Fig. 4, Fig. 5; Plastic cement screw rod 31 is in tuning cover plate 4; Screw in or screw out plastic cement screw rod 31; Distance between sheet metal 32 and the medium resonant rod 2 is changed, and the resonance frequency of its cavity 1 and medium resonant rod 2 changes with the variation of distance, uses nut 5 locking plastic parts 31 to get final product after debugging finishes.
Dielectric resonator tuning methods of the present invention is: the plastic cement screw rod through on the rotary tuning assembly makes tuning block move up and down, thereby realizes the variation of distance between sheet metal and the medium resonant rod, obtains required resonance frequency through suitable distance adjustment.
Wherein, the plastic cement screw rod of said tuning block adopts the PEI material, and it has good mechanical performance, electrical insulation capability, radiation-resistant property, high-low temperature resistant and anti-wear performance, and can see through microwave.Use silver-plated sheet metal to replace round ceramic sheet commonly used simultaneously, can make resonance frequency grow and tuning amount big, required tuning height space is little, cost is low.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a dielectric resonator tuning structure is characterized in that, comprising: cavity, medium resonant rod, tuning block, tuning cover plate, nut and screw, and said medium resonant rod is fixedly mounted on cavity bottom; Said tuning block is installed on the tuning cover plate, and nut is equipped with on said tuning block top, behind tuning the finishing through nut check; Said tuning cover plate passes through screw on cavity.
2. dielectric resonator tuning structure as claimed in claim 1 is characterized in that, said tuning block comprises a plastic cement screw rod and a sheet metal, and said sheet metal is injected and molded in the plastic cement screw rod.
3. dielectric resonator tuning structure as claimed in claim 2 is characterized in that, said sheet metal is a circular configuration, its surface electrical copper facing or silver.
4. dielectric resonator tuning structure as claimed in claim 2 is characterized in that, said sheet metal centre bore has spline structure, to guarantee that sheet metal does not rotate around the plastic cement screw rod.
5. dielectric resonator tuning structure as claimed in claim 2 is characterized in that, said plastic cement screw rod screws in or screw out plastic cement screw rod, the distance between scalable sheet metal and the medium resonant rod in tuning cover plate.
6. dielectric resonator tuning structure as claimed in claim 2 is characterized in that said cavity is one-body molded by aluminium alloy, and its electroplating surface, inner chamber are the block structure of circular cavity.
7. dielectric resonator tuning methods; It is characterized in that; Plastic cement screw rod through on the rotary tuning assembly makes tuning block move up and down, thereby realizes the variation of distance between sheet metal and the medium resonant rod, obtains required resonance frequency through suitable distance adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104292217A CN102569978A (en) | 2011-12-20 | 2011-12-20 | Dielectric resonator tuning structure and tuning method |
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| CN2011104292217A CN102569978A (en) | 2011-12-20 | 2011-12-20 | Dielectric resonator tuning structure and tuning method |
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| CN102569978A true CN102569978A (en) | 2012-07-11 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014090004A1 (en) * | 2012-12-10 | 2014-06-19 | 中兴通讯股份有限公司 | Dielectric resonator, assembly method therefor, and dielectric filter |
| CN104112893A (en) * | 2014-05-20 | 2014-10-22 | 北京雷格讯电子有限责任公司 | High-performance band-shaped transmission line employing composite medium support |
| CN104733828A (en) * | 2014-12-26 | 2015-06-24 | 东莞鸿爱斯通信科技有限公司 | TM mode dielectric resonator |
| CN106058396A (en) * | 2015-04-03 | 2016-10-26 | 株式会社This | Tuner to tune resonant frequency of dielectric resonator filter |
| CN107615574A (en) * | 2015-12-30 | 2018-01-19 | 深圳市大富科技股份有限公司 | A cavity filter and communication radio frequency device |
| CN108023149A (en) * | 2017-11-03 | 2018-05-11 | 东莞鸿爱斯通信科技有限公司 | Cavity filter and communication device |
| CN109149035A (en) * | 2017-06-15 | 2019-01-04 | Ace技术株式会社 | The cavity filter with mixing nut bolt is reduced using PIMD |
| CN109546274A (en) * | 2018-11-16 | 2019-03-29 | 北京理工大学 | A kind of reduction coaxial filter passive intermodulation device and method |
| CN111279546A (en) * | 2017-12-29 | 2020-06-12 | 华为技术有限公司 | Cavity filter |
| CN113725571A (en) * | 2020-05-20 | 2021-11-30 | 大富科技(安徽)股份有限公司 | Tuning screw, filter and communication equipment |
| CN119966375A (en) * | 2024-12-30 | 2025-05-09 | 北京无线电计量测试研究所 | A high-Q frequency-tunable sapphire microwave cavity |
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| JP2004072730A (en) * | 2002-06-12 | 2004-03-04 | Matsushita Electric Ind Co Ltd | Dielectric filter, communication device, method of controlling resonance frequency |
| CN201117780Y (en) * | 2007-11-12 | 2008-09-17 | 摩比天线技术（深圳）有限公司 | Coaxial cavity resonator coupled structure |
| CN101555610A (en) * | 2009-05-19 | 2009-10-14 | 苏州市康普来电镀有限公司 | Method for local electroplating sheltering and hanging aluminium alloy cavity of communication filter |
| CN101964439A (en) * | 2010-10-27 | 2011-02-02 | 摩比天线技术（深圳）有限公司 | Filter coupling structure with adjustable capacity |
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2011
- 2011-12-20 CN CN2011104292217A patent/CN102569978A/en active Pending
Patent Citations (4)
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| JP2004072730A (en) * | 2002-06-12 | 2004-03-04 | Matsushita Electric Ind Co Ltd | Dielectric filter, communication device, method of controlling resonance frequency |
| CN201117780Y (en) * | 2007-11-12 | 2008-09-17 | 摩比天线技术（深圳）有限公司 | Coaxial cavity resonator coupled structure |
| CN101555610A (en) * | 2009-05-19 | 2009-10-14 | 苏州市康普来电镀有限公司 | Method for local electroplating sheltering and hanging aluminium alloy cavity of communication filter |
| CN101964439A (en) * | 2010-10-27 | 2011-02-02 | 摩比天线技术（深圳）有限公司 | Filter coupling structure with adjustable capacity |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014090004A1 (en) * | 2012-12-10 | 2014-06-19 | 中兴通讯股份有限公司 | Dielectric resonator, assembly method therefor, and dielectric filter |
| US9941564B2 (en) | 2012-12-10 | 2018-04-10 | Zte Corporation | Dielectric resonator, assembly method therefor, and dielectric filter |
| CN104112893A (en) * | 2014-05-20 | 2014-10-22 | 北京雷格讯电子有限责任公司 | High-performance band-shaped transmission line employing composite medium support |
| CN104733828A (en) * | 2014-12-26 | 2015-06-24 | 东莞鸿爱斯通信科技有限公司 | TM mode dielectric resonator |
| CN106058396A (en) * | 2015-04-03 | 2016-10-26 | 株式会社This | Tuner to tune resonant frequency of dielectric resonator filter |
| CN106058396B (en) * | 2015-04-03 | 2017-07-28 | 株式会社This | The tuner being tuned for the resonant frequency to dielectric resonator filter |
| CN107615574A (en) * | 2015-12-30 | 2018-01-19 | 深圳市大富科技股份有限公司 | A cavity filter and communication radio frequency device |
| CN109149035A (en) * | 2017-06-15 | 2019-01-04 | Ace技术株式会社 | The cavity filter with mixing nut bolt is reduced using PIMD |
| CN108023149A (en) * | 2017-11-03 | 2018-05-11 | 东莞鸿爱斯通信科技有限公司 | Cavity filter and communication device |
| CN111279546A (en) * | 2017-12-29 | 2020-06-12 | 华为技术有限公司 | Cavity filter |
| EP3713011A4 (en) * | 2017-12-29 | 2020-11-25 | Huawei Technologies Co., Ltd. | CAVITY FILTER |
| US11196136B2 (en) | 2017-12-29 | 2021-12-07 | Huawei Technologies Co., Ltd. | Cavity filter |
| CN111279546B (en) * | 2017-12-29 | 2022-02-25 | 华为技术有限公司 | Cavity filter |
| CN109546274A (en) * | 2018-11-16 | 2019-03-29 | 北京理工大学 | A kind of reduction coaxial filter passive intermodulation device and method |
| CN113725571A (en) * | 2020-05-20 | 2021-11-30 | 大富科技(安徽)股份有限公司 | Tuning screw, filter and communication equipment |
| CN119966375A (en) * | 2024-12-30 | 2025-05-09 | 北京无线电计量测试研究所 | A high-Q frequency-tunable sapphire microwave cavity |
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Application publication date: 20120711 |