CN104659446A - Mixed-mould medium duplexer applying metallic common cavity - Google Patents
Mixed-mould medium duplexer applying metallic common cavity Download PDFInfo
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- CN104659446A CN104659446A CN201510029316.8A CN201510029316A CN104659446A CN 104659446 A CN104659446 A CN 104659446A CN 201510029316 A CN201510029316 A CN 201510029316A CN 104659446 A CN104659446 A CN 104659446A
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Abstract
The invention discloses a mixed-mould medium duplexer applying a metallic common cavity. The mixed-mould medium duplexer comprises a platy main body and a cover plate; an input terminal is arranged on one side of the platy main body; a first passage filter and a second passage filter are arranged on one side of the platy main body; the first passage filter and the second passage filter at least comprise first resonant cavities and second resonant cavities respectively; coupling windows are arranged between the first resonant cavities and the second resonant cavities of the first passage filter and the second passage filter respectively; first harmonic oscillators and second harmonic oscillators are arranged in the first resonant cavities and the second resonant cavities respectively; the harmonic oscillators in the first resonant cavities are metallic resonant columns; the harmonic oscillators in the second resonant cavities are high Q value medium resonant columns. The mixed-mould medium duplexer is characterized in that a common resonant cavity is formed in the platy main body in front of the first resonant cavities, and is a resonant cavity of which the wave length is 1/2; the first resonant cavities are metallic resonant cavities of which the wave length is 1/4; coupling windows are arranged between the first resonant cavities and the common resonant cavity. The mixed-mould medium duplexer is good in consistency, high in reliability, not restricted in application range, and suitable for communication equipment distributed at communication base station and indoors.
Description
Technical field
The present invention relates to a kind of many mixers.Specifically, be use that metal shares the high q-factor in chamber, low-loss mixes mould dielectric filter.Be applicable on the communication equipments such as the communication equipment of communication base station and indoor distribution.
Background technology
At present, Wireless Telecom Equipment being used for the dielectric filter of filtering clutter is all traditional product.This conventional filter is all that employing first resonant cavity is directly coupled with input terminal, such that the consistency of this filter is bad, poor reliability, if be used on powerful device, filter is easily struck sparks, lost efficacy.Therefore, thisly can only to be used on low-power equipment by filter, can not be used on powerful device, the scope of application is restricted.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of mixed mould dielectric duplexer using metal to share chamber, and this filter, consistency is good, and reliability is high, and the scope of application is unrestricted.
The problems referred to above that the present invention will solve are realized by following technical scheme:
Use metal of the present invention shares the mixed mould dielectric duplexer in chamber, and comprise plate-like body and cover plate, described plate-like body is rectangle, and it has input terminal.Described plate-like body one side there are first passage filter and second channel filter, described first passage filter and second channel filter are all at least containing the first resonant cavity and the second resonant cavity, all there is coupling window between the first resonant cavity of first passage filter and the second resonant cavity and between the first resonant cavity of second channel filter and the second resonant cavity, in described two the first resonant cavitys and two the second resonant cavitys, have the first harmonic oscillator and the second harmonic oscillator respectively.Harmonic oscillator in two the first resonant cavitys is metal resonant column, and the harmonic oscillator in two the second resonant cavitys is high q-factor dielectric resonance post.Be characterized in that the plate-like body before described two the first resonant cavitys has common resonant chamber, this common resonant chamber is 1/2 wavelength resonant cavity.Described two the first resonant cavitys are 1/4 length metal resonant cavity, and all have coupling window between two the first resonant cavitys and shared resonant cavity.Described input terminal is in plate-like body one side adjacent with shared resonant cavity and stretches in common resonant chamber, and inserting end has the disk being used as input coupling capacitance.
Wherein, plate-like body one side there is the flat hole similar to its shape, the first cross wall and the second cross wall is had between two hole walls that flat hole is relative, described first cross wall is parallel with the second cross wall, be adjacent by the first cross wall and form described common resonant chamber between that parallel hole wall, common resonant has column in chamber, and there is common resonant post column upper end.Described common resonant post is parallel with the first cross wall.Be connected with straight wall between the first cross wall and the second cross wall, form two described first resonant cavitys respectively by the spacing between straight wall both sides and corresponding hole wall.Described straight wall there is the first resonant column, this first resonant column is shaft-like and parallel with shared resonant column, first resonant column two ends are stretched in first passage first resonant cavity and in second channel first resonant cavity respectively, to be formed the resonant column in two described first resonant cavitys respectively.
Parallel longitudinal all with shared resonant column of the two sides of described disk.
In insulation coordination between described common resonant post and column upper end.
Described common resonant post is connected by insulation spacer with between column upper end.
Take such scheme, have the following advantages:
Because the present invention is provided with 1/2 wavelength common resonant chamber between the first resonant cavity and input terminal, make the consistency of filter good, reliability improves, and not only can be used on low-power equipment, also can be used on powerful device, the scope of application is unrestricted.
Accompanying drawing explanation
Fig. 1 is the mixed mould dielectric duplexer structural representation that use metal of the present invention shares chamber;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
Fig. 3 is the B-B cross-sectional schematic of Fig. 1.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the mixed mould dielectric duplexer that use metal of the present invention shares chamber comprises plate-like body 15 and cover plate 16.Described plate-like body 15 is rectangle, and it is provided with input terminal 2.Described plate-like body 15 one side is provided with first passage filter and second channel filter, described first passage filter and second channel filter are all at least containing the first resonant cavity 5 and the second resonant cavity 7, the second coupling window 9 is all processed with between the first resonant cavity 5 of first passage filter and the second resonant cavity 7 and between the first resonant cavity 5 of second channel filter and the second resonant cavity 7, be provided with in described two the first resonant cavitys 5 in first resonant column, 10, two the second resonant cavitys 7 and second resonant column 8 is all installed.The first resonant column in two the first resonant cavitys 5 is metal resonant column, and the second resonant column 8 in two the second resonant cavitys 7 is high q-factor dielectric resonance post.Plate-like body 15 before described two the first resonant cavitys 5 is provided with common resonant chamber 1, and this common resonant chamber is 1/2 wavelength resonant cavity, is provided with common resonant post 13 in common resonant chamber.Described two the first resonant cavitys 5 are 1/4 length metal resonant cavity, and are provided with the first coupling window 11 between two the first resonant cavitys 5 and shared resonant cavity 1.Described input terminal 2 is in plate-like body 15 one side adjacent with shared resonant cavity 1 and stretches in common resonant chamber 1, and inserting end is connected with the disk 3 being used as input coupling capacitance, and the two sides of described disk 3 all parallels with the longitudinal direction of shared resonant column 13.
Wherein, plate-like body 15 one side is processed with the flat hole similar to plate-like body 15 shape, the first cross wall 4 and the second cross wall 6 is processed with between two hole walls that flat hole is relative, described first cross wall 4 is parallel with the second cross wall 6, be adjacent by the first cross wall 4 and form described common resonant chamber 1 between that parallel hole wall, column 14 is installed in common resonant chamber 1, column 14 upper end is provided with common resonant post 13, be connected by insulation spacer 17 between described common resonant post 13 with column 14 upper end, make between common resonant post 13 and column 14 upper end in insulation coordination.Described common resonant post 13 is parallel with the first cross wall 4.Be connected with straight wall 12 between the first cross wall 4 and the second cross wall 6, form two described first resonant cavitys 5 respectively by the spacing between straight wall 12 both sides and corresponding hole wall.Described straight wall 12 is provided with the first resonant column 10, this first resonant column is shaft-like and parallel with shared resonant column 13, the first resonant cavity 5 that first passage is stretched at first resonant column 10 two ends is respectively interior with in the first resonant cavity 5 of second channel, to form the resonant column in two described first resonant cavitys 5 respectively.
Because the present invention is provided with the common resonant chamber 1 of 1/2 wavelength between the first resonant cavity 5 and input terminal 2, make the consistency of filter good, reliability improves, and not only can be used on low-power equipment, also can be used on powerful device, the scope of application is unrestricted.
Claims (5)
1. use metal to share the mixed mould dielectric duplexer in chamber, comprise plate-like body (15) and cover plate (16), described plate-like body (15) is rectangle, and it has input terminal (2); Described plate-like body (15) one side there are first passage filter and second channel filter, described first passage filter and second channel filter are all at least containing the first resonant cavity (5) and the second resonant cavity (7), all there is the second coupling window (9) between first resonant cavity (5) of first passage filter and the second resonant cavity (7) and between first resonant cavity (5) of second channel filter and the second resonant cavity (7), in described two the first resonant cavitys (5) and two the second resonant cavitys (7), have the first harmonic oscillator (10) and the second resonance straight (8) respectively; The first harmonic oscillator (10) in two the first resonant cavitys (5) is metal resonant column, and the second harmonic oscillator (8) in two the second resonant cavitys (7) is high q-factor dielectric resonance post; It is characterized in that the plate-like body (15) before described two the first resonant cavitys (5) has common resonant chamber (1), this common resonant chamber is 1/2 wavelength resonant cavity; Described two the first resonant cavitys (5) are 1/4 length metal resonant cavity, and all have the first coupling window (11) between two the first resonant cavitys (5) and shared resonant cavity (1); Described input terminal (2) is in plate-like body (15) one side adjacent with shared resonant cavity (1) and stretches in common resonant chamber (1), and inserting end has the disk (3) being used as input coupling capacitance.
2. use metal according to claim 1 shares the mixed mould dielectric duplexer in chamber, it is characterized in that plate-like body (15) one side has the flat hole similar to its shape, the first cross wall (4) and the second cross wall (6) is had between two hole walls that flat hole is relative, described first cross wall (4) is parallel with the second cross wall (6), be adjacent by the first cross wall (4) and form described common resonant chamber (1) between that parallel hole wall, have column (14) in common resonant chamber (1), there is common resonant post (13) column (14) upper end; Described common resonant post (13) is parallel with the first cross wall (4); Be connected with straight wall (12) between the first cross wall (4) and the second cross wall (6), form two described first resonant cavitys (5) respectively by the spacing between straight wall (12) both sides and corresponding hole wall; Described straight wall (12) there is the first harmonic oscillator (10), this first harmonic oscillator is shaft-like and parallel with shared resonant column (13), first harmonic oscillator (10) two ends are stretched in first passage first resonant cavity (5) and in second channel first resonant cavity (5) respectively, to be formed the resonant column in two described first resonant cavitys (5) respectively.
3. use metal according to claim 1 shares the mixed mould dielectric duplexer in chamber, parallel longitudinal all with shared resonant column (13) of the two sides that it is characterized in that described disk (3).
4. the use metal according to any one of claim 1 ~ 3 shares the mixed mould dielectric duplexer in chamber, it is characterized in that between described common resonant post (13) and column (14) upper end in insulation coordination.
5. the use metal according to any one of claim 1 ~ 3 shares the mixed mould dielectric duplexer in chamber, it is characterized in that described common resonant post (13) is connected by insulation spacer (17) with between column (14) upper end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510029316.8A CN104659446B (en) | 2015-01-21 | 2015-01-21 | A kind of use metal shares the mixed mould dielectric duplexer in chamber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510029316.8A CN104659446B (en) | 2015-01-21 | 2015-01-21 | A kind of use metal shares the mixed mould dielectric duplexer in chamber |
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| Publication Number | Publication Date |
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| CN104659446A true CN104659446A (en) | 2015-05-27 |
| CN104659446B CN104659446B (en) | 2017-03-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112805874A (en) * | 2018-09-27 | 2021-05-14 | 上海诺基亚贝尔股份有限公司 | Duplexer |
| CN114927847A (en) * | 2022-05-31 | 2022-08-19 | 江苏贝孚德通讯科技股份有限公司 | Medium dual-mode duplexer applied to 5G communication system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130049891A1 (en) * | 2011-08-23 | 2013-02-28 | Mesaplexx Pty Ltd | Filter |
| CN202977665U (en) * | 2012-12-12 | 2013-06-05 | 深圳市大富科技股份有限公司 | Cavity filter and communication radiofrequency device |
| CN103545588A (en) * | 2013-10-24 | 2014-01-29 | 江苏贝孚德通讯科技股份有限公司 | Half-wavelength shared-cavity metal resonator |
| CN204538151U (en) * | 2015-01-21 | 2015-08-05 | 江苏贝孚德通讯科技股份有限公司 | A kind of mixed mould dielectric duplexer using metal to share chamber |
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2015
- 2015-01-21 CN CN201510029316.8A patent/CN104659446B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130049891A1 (en) * | 2011-08-23 | 2013-02-28 | Mesaplexx Pty Ltd | Filter |
| CN202977665U (en) * | 2012-12-12 | 2013-06-05 | 深圳市大富科技股份有限公司 | Cavity filter and communication radiofrequency device |
| CN103545588A (en) * | 2013-10-24 | 2014-01-29 | 江苏贝孚德通讯科技股份有限公司 | Half-wavelength shared-cavity metal resonator |
| CN204538151U (en) * | 2015-01-21 | 2015-08-05 | 江苏贝孚德通讯科技股份有限公司 | A kind of mixed mould dielectric duplexer using metal to share chamber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112805874A (en) * | 2018-09-27 | 2021-05-14 | 上海诺基亚贝尔股份有限公司 | Duplexer |
| CN114927847A (en) * | 2022-05-31 | 2022-08-19 | 江苏贝孚德通讯科技股份有限公司 | Medium dual-mode duplexer applied to 5G communication system |
| CN114927847B (en) * | 2022-05-31 | 2023-06-02 | 江苏贝孚德通讯科技股份有限公司 | Medium dual-mode duplexer applied to 5G communication system |
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| CN104659446B (en) | 2017-03-29 |
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