CN202534770U - Dielectric filter and dielectric resonator thereof - Google Patents
Dielectric filter and dielectric resonator thereof Download PDFInfo
- Publication number
- CN202534770U CN202534770U CN2012201866794U CN201220186679U CN202534770U CN 202534770 U CN202534770 U CN 202534770U CN 2012201866794 U CN2012201866794 U CN 2012201866794U CN 201220186679 U CN201220186679 U CN 201220186679U CN 202534770 U CN202534770 U CN 202534770U
- Authority
- CN
- China
- Prior art keywords
- dielectric resonator
- cover plate
- cavity
- medium
- dielectric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model relates to a dielectric filter and a dielectric resonator thereof. The dielectric resonator comprises a chamber (100), mediums (102), an elastic conductive body (103), a cover plate (105), elastic bodies (104), and tuning screws (107), wherein the chamber has receiving holes, the mediums are equipped in the receiving holes of the chamber (100), bottom ends of the receiving holes have counterbores, the elastic conductive body is equipped at an opening end of the chamber (100) and presses against end portions of the mediums (102), the cover plate (105) is fixed on the opening end of the chamber (100) and presses against the elastic conductive body (103), the elastic bodies (104) are compressed by the elastic conductive body (103) and the cover plate (105), the tuning screws are equipped on the cover plate (105), and one ends of the tuning screws penetrate to inner holes of the mediums (102). The cover plate of the dielectric resonator is flat, so processing is simple; sintering and welding of the mediums are cancelled, so stability of a Q value is ensured, and reliability is strong; and mounting is convenient.
Description
[technical field]
The utility model relates to microwave communication, particularly, relates to dielectric filter and dielectric resonator.
[background technology]
Along with the development of microwave communication, the product of low-loss, the large and small typeization of peak power is used more and more extensive.The Q value of traditional metal resonance filter increases with resonator progression between 3000～4500, makes that the filter volume ratio is bigger, can not satisfy the application of product low cost, miniaturization.
Dielectric filter adopts characteristics such as low-loss, high-k, the thermal coefficient of expansion of ceramic medium material is little, power capacity is big to design and produce.Dielectric filter is made up of through the cascade of certain way horizontal magnetic TM (Transverse Magnetic) mould dielectric resonator.A kind of mounting means of the dielectric resonator of traditional T M mould dielectric filter is to adopt welding procedure: adopt mode and a metallic conductor that sintering adds welding as one at the dielectric resonator end face; The dielectric resonator of this integral type is reinstalled filter; The dielectric filter of this kind mode is very big because of the expansion of metal difference of coefficients of medium and welding; Cause under high and low temperature environment, being prone to cause welding breaking, make filter reliability variation.This kind welding process requirement height, operation easier is big, is difficult to high volume applications.
Therefore design a kind of high Q value, the dielectric resonator of the high and low cost of reliability becomes the key of TM mould dielectric resonator, dielectric filter high volume applications.
[summary of the invention]
A purpose of the utility model provides a kind of reliable dielectric resonator, and said dielectric resonator comprises: cavity, and said cavity has accepting hole; Medium, said medium is installed to the accepting hole of said cavity; Elastic electric conductor, said elastic electric conductor are installed to the perforate end of said cavity and are pressing the end of said medium; Cover plate, said cover plate are fixed to the perforate end of said cavity and are pressing said elastic electric conductor; Tuning screw rod, said tuning screw rod is installed to said cover plate, and an end extend into the endoporus of said medium.
As a kind of improvement project, the bottom of said accepting hole has counterbore, and the aperture of said counterbore equals or be slightly larger than the external diameter of said medium.
As a kind of improvement project, said elastic electric conductor is laminar, has boss, and said boss is being pressed the end of said medium.
As a kind of improvement project, the inclined-plane of said boss or periphery have some windowing.
As a kind of improvement project, said dielectric resonator also comprises elastomer, and said elastomer is installed to the back side of said boss, and by said elastic electric conductor and the compression of said cover plate.
As a kind of improvement project, the back side of said boss is cavity, and said elastomeric not compression height is greater than the height between said cover plate and the said boss.
As a kind of improvement project, said tuning screw rod is installed to said cover plate through nut.
As a kind of improvement project, to said cavity, said elastic electric conductor is passed by said screw said cover plate through screw.
As a kind of improvement project, each cavity comprises two host cavities, and each host cavity is equipped with a cylindrical medium.
Another purpose of the utility model provides a kind of reliable dielectric filter, and said dielectric filter comprises some aforesaid dielectric resonators, and said some dielectric resonators adopt cascade system.
Dielectric resonator, dielectric filter that the utility model preferred embodiment provides have the following advantages: cover plate is a plane, and processing is simple; Cavity bottom is provided with the fool proof counterbore, and is easy for installation; The sintering of having removed medium adds welding, has kept the stable of Q value, and good reliability is convenient to again install.
[description of drawings]
Fig. 1 is the dielectric resonator structural representation that the utility model one embodiment provides;
Fig. 2 is the longitudinal sectional view of the cavity of dielectric resonator shown in Figure 1;
Fig. 3 is the longitudinal sectional view of the medium of dielectric resonator shown in Figure 1;
Fig. 4 is the thin elastic electric conductor schematic cross-section of dielectric resonator shown in Figure 1;
Fig. 5 is the floor map of the thin elastic electric conductor of windowing on the boss inclined-plane;
Fig. 6 is the thin elastic electric conductor floor map of windowing at the boss excircle;
Fig. 7 is the high-elastic gonosome longitudinal sectional view of dielectric resonator shown in Figure 1;
Fig. 8 and Fig. 9 are the partial sectional views of dielectric resonator shown in Figure 1.
[embodiment]
With reference to figure 1, the TM mould dielectric resonator that the utility model one embodiment provides comprises cavity 100, connector 101, medium 102, laminar elastic electric conductor 103, elastomer 104, cover plate 105, nut 106, tuning screw rod 107, screw 109.Cavity 100 has two host cavities, and each host cavity is equipped with a medium 102.
Referring to figs. 2 and 3, medium 102 for to have the cylindric of central through hole, the outside dimension A=15-35mm (millimeter) of medium 102, tolerance grade is controlled.The bottom of the accepting hole of cavity 100 is provided with a flat counterbore, and the aperture B=15-35mm of counterbore (B >=A), degree of depth C=0.1-2mm.The design of counterbore can guarantee that the medium installing and locating is coaxial, and the medium installation is convenient in this fool proof design, improves efficiency of assembling, and assembling back axiality is good.Preferably, adopt coating processes to adhere to a conductive coating, guaranteed the conduction of medium 102 end faces in the both ends of the surface of medium 102.
With reference to figure 4, the thickness D=0.05-0.5mm of laminar elastic electric conductor 103.Design one plane boss on the thin elastic electric conductor 103, boss diameter are E, highly are F, E=15-40mm, F=0.3-5mm.Elastic electric conductor 103 is installed to the perforate end of cavity 100, and is pressed onto medium through boss, and the upper and lower end face of medium 102 is contacted with host cavity bottom surface, the elastic electric conductor 103 of cavity 100 respectively.
Should recognize; Consider the reality of application; Thin elastic electric conductor 103 and structural boss thereof; Various ways such as (with reference to figure 6) that structural style can extend to that window in (with reference to figure 5) in the boss inclined-plane or circumference is windowed, window form also can be various, circle, rectangle, polygonal and radial various ways.Simultaneously, thin elastic electric conductor 102 structural boss do not limit to a kind of, and the shape of boss can be circle, rectangle, polygonal etc.Thin elastic electric conductor 102 materials can be conducting metal, conductive plastic or elastomeric material coated with conductive coating.
With reference to figure 1 and Fig. 7, in this instance, above the boss of thin elastic electric conductor 103, place high-elastic gonosome 104, high-elastic gonosome 104 external diameter M=13-40mm are compression height N=0.3-5mm.During assembling, when not packing high resiliency body 104 into, a height gap H, H=0.1-5mm are arranged at cover plate 105 lower surfaces and 103 of thin elastic electric conductors.Because of N＞H, behind the high-elastic gonosome 104 of packing into, locking cover plate 105; High-elastic gonosome 104 highly is compressed into H; Medium 102 has lasting thrust with cavity 100, thin elastic electric conductor 102 boss, makes cavity 100, medium 102 contact-making surfaces that continual and steady pressure contact arranged, and ground connection is good.
Should recognize that the version of high-elastic gonosome 103 also can be various, can be circle, rectangle, polygonal etc.Material can be metal, plastic cement, rubber, compressed air, also can be metal, plastic cement, rubber, compressed-air actuated assembly.
With reference to figure 1, Fig. 8 and Fig. 9, cover plate 105 usefulness cover screws 109 are fastened on the cavity 100, and screw rod 109 also passes elastic electric conductor.The high-elastic gonosome 104 in assembling back is compressed, and makes high-elastic gonosome 104 compress thin elastic electric conductor 103, and elastic electric conductor 103 has stable elastic compression power to contact with medium 102, has guaranteed the reliable ground of TM mould dielectric resonator medium 102.
Tuning screw rod 107 uses with nut 106 combinations, and an end of tuning screw rod 107 stretches into the endoporus of medium 102, makes that TM mould dielectric resonator systematic function is adjustable.
Adopt said structure, cover plate 105 is a plane, and processing is simple.Cavity 100 bottoms are provided with the fool proof boss, and are easy for installation.Thin elastic electric conductor 103 is a stamping parts, and batch sizes is stable.High-elastic gonosome 104 moulds are prefabricated, dimensionally stable, and location and installation is convenient.Compare traditional T M mould dielectric resonator, the sintering of having removed medium adds welding, has kept the stable of Q value, is convenient to again install.
Should recognize; Listed size numerical value is for the ease of describing the realization of product function more than the cavity 100 of TM mould dielectric resonator, connector 101, medium 102, thin elastic electric conductor 103, high-elastic gonosome 104, cover plate 105, nut 106, the tuning screw rod 107 etc., more than listed size numerical value be not limited to the concrete size value of said definition.
Above-mentioned TM mould dielectric resonator is TM mould dielectric resonator, TM dielectric filter part-structure mode, can realize TM mould dielectric resonator, the TM mould dielectric filter of different performance through different cascade systems.
For the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be as the criterion with accompanying claims.
Claims (10)
1. a dielectric resonator is characterized in that, comprising:
Cavity (100), said cavity has accepting hole;
Medium (102), said medium is installed to the accepting hole of said cavity (100);
Elastic electric conductor (103), said elastic electric conductor are installed to the perforate end of said cavity (100) and are pressing the end of said medium (102);
Cover plate (105), said cover plate (105) are fixed to the perforate end of said cavity (100) and are pressing said elastic electric conductor (103);
Tuning screw rod (107), said tuning screw rod is installed to said cover plate (105), and an end extend into the endoporus of said medium (102).
2. dielectric resonator according to claim 1 is characterized in that the bottom of said accepting hole has counterbore, and the aperture of said counterbore (B) equals or be slightly larger than the external diameter (A) of said medium (102).
3. dielectric resonator according to claim 1 is characterized in that, said elastic electric conductor (103) is laminar, has boss, and said boss is being pressed the end of said medium (102).
4. dielectric resonator according to claim 3 is characterized in that the inclined-plane of said boss or periphery have some windowing.
5. dielectric resonator according to claim 3 is characterized in that, said dielectric resonator also comprises elastomer (104), and said elastomer (104) is installed to the back side of said boss, and by said elastic electric conductor (103) and said cover plate (105) compression.
6. dielectric resonator according to claim 5 is characterized in that, the back side of said boss is cavity, and the not compression height (N) of said elastomer (104) is greater than the height (H) between said cover plate (105) and the said boss.
7. dielectric resonator according to claim 3 is characterized in that, said tuning screw rod (107) is installed to said cover plate (105) through nut (106).
8. dielectric resonator according to claim 1 is characterized in that, said cover plate (105) is fixed to said cavity (100) through screw (109), and said elastic electric conductor (104) is passed by said screw (109).
9. dielectric resonator according to claim 8 is characterized in that, each cavity (100) comprises two host cavities, and each host cavity is equipped with a cylindrical medium (102).
10. a dielectric filter is characterized in that, said dielectric filter comprises some like any described dielectric resonator in the claim 1 to 9, and said some dielectric resonators adopt cascade system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201866794U CN202534770U (en) | 2012-04-27 | 2012-04-27 | Dielectric filter and dielectric resonator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201866794U CN202534770U (en) | 2012-04-27 | 2012-04-27 | Dielectric filter and dielectric resonator thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534770U true CN202534770U (en) | 2012-11-14 |
Family
ID=47135929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201866794U Expired - Lifetime CN202534770U (en) | 2012-04-27 | 2012-04-27 | Dielectric filter and dielectric resonator thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637940A (en) * | 2012-04-27 | 2012-08-15 | 深圳市国人射频通信有限公司 | Dielectric filter band dielectric resonator thereof |
| CN111769346A (en) * | 2020-08-03 | 2020-10-13 | 深圳国人科技股份有限公司 | TM mode dielectric filter |
-
2012
- 2012-04-27 CN CN2012201866794U patent/CN202534770U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637940A (en) * | 2012-04-27 | 2012-08-15 | 深圳市国人射频通信有限公司 | Dielectric filter band dielectric resonator thereof |
| CN111769346A (en) * | 2020-08-03 | 2020-10-13 | 深圳国人科技股份有限公司 | TM mode dielectric filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102637940A (en) | Dielectric filter band dielectric resonator thereof | |
| US9979070B2 (en) | Resonator, filter, duplexer, multiplexer, and communications device | |
| US6002311A (en) | Dielectric TM mode resonator for RF filters | |
| EP2605330B1 (en) | Transverse magnetic mode dielectric resonator, transverse magnetic mode dielectric filter and base station | |
| CN201749935U (en) | Medium syntonizer, elastic conductive shielding piece and medium filter | |
| CN203721860U (en) | Dielectric filter | |
| CN202534770U (en) | Dielectric filter and dielectric resonator thereof | |
| CN204315703U (en) | TM mould dielectric resonator | |
| CN110088978B (en) | Resonator and communication device | |
| CN102623785A (en) | Dielectric filter, dielectric resonator, cover plate unit and communication equipment | |
| EP3379641B1 (en) | Rf filter for improving pimd performance | |
| CN202004138U (en) | Dielectric filter, dielectric resonator, cover plate unit and communication equipment | |
| CN103199397A (en) | Radio frequency coaxial connector | |
| CN105529512A (en) | TM-mode dielectric filter | |
| CN101895004A (en) | Dielectric resonator, flexible conductive shielding part and dielectric filter | |
| CN104733828B (en) | TM mould dielectric resonators | |
| CN204706616U (en) | Cavity body filter, duplexer and radio frequency remote equipment | |
| EP3133691B1 (en) | Transverse magnetic (tm) mode dielectric filter | |
| CN106159395A (en) | Cavity body filter, duplexer and radio frequency remote equipment | |
| CN204315704U (en) | Dielectric resonator | |
| CN106450645A (en) | TM die dielectric resonator and dielectric filter | |
| CN212257636U (en) | TM mode dielectric filter | |
| CN201199595Y (en) | Coaxial radio frequency electric connector for air medium | |
| KR101605863B1 (en) | Dieletric Resonator Filter | |
| KR20160008486A (en) | Cavity Filter Including Coxial Resonator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 5th floor, building 1, Guoren science and Technology Park, the intersection of Jinxiu middle road and Cuijing Road, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Guoren Technology Co., Ltd Address before: 518000. B building 1F, three national building, science and technology, Shizhong District, Nanshan District hi tech Zone, Guangdong, Shenzhen Patentee before: Shenzhen GrenTech Corporation |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |
|
| CX01 | Expiry of patent term |