CN103545588A - Half-wavelength shared-cavity metal resonator - Google Patents
Half-wavelength shared-cavity metal resonator Download PDFInfo
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- CN103545588A CN103545588A CN201310505816.5A CN201310505816A CN103545588A CN 103545588 A CN103545588 A CN 103545588A CN 201310505816 A CN201310505816 A CN 201310505816A CN 103545588 A CN103545588 A CN 103545588A
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Abstract
The invention relates to a half-wavelength shared-cavity metal resonator which comprises a filter body. Cover plates are arranged on the two sides of the filter body. A first shared resonance cavity, a first resonance cavity of a first channel filter and a first resonance cavity of a second channel filter are arranged on one side, close to the first cover plate, of the filter body. A shared resonance column is arranged in the first shared resonance cavity, and first resonance columns are arranged in the first resonance cavity of the first channel filter and the first resonance cavity of the second channel filter. The half-wavelength shared-cavity metal resonator is characterized in that corresponding to the side of the filter body, a second shared resonance cavity, a first resonance cavity of a third channel filter, a first resonance cavity of a fourth channel filter and resonance columns are arranged on the other side of the filter body. The half-wavelength shared-cavity metal resonator eliminates side effects, reduces occupancy and is suitable for communicating equipment of wireless base stations.
Description
Technical field
The present invention relates to a kind of multiplexer.Specifically, be the shared chamber of the half-wavelength metal resonators on multiplexer.Be applicable on the communication equipment of wireless base station.
Background technology
At wireless communication field, the third generation, the 4th generation wireless communication technique to mobile phone and other hand-hold electronic equipments, brought the infinite commercial opportunities of data, information.Each main international region (as America, Europe, Japan etc.) has a plurality of transmission bands to apply, the for example GSM of the second generation and CDMA, the LET in the WCDEMA of the third generation and EVDD, the 4th generation etc., the radio-frequency (RF) signal of these different systems, different transmission frequencies and energy are to be mostly responsible for receiving and transmitting by one group or two groups of antennas, and the distribution of different frequency range signal and combination side need to low differential losses, the multiplexer of high-isolation and intermodulation superior performance.
At present, the multiplexer being applied on wireless base station communication equipment is mostly traditional two multiplexers or triplexer.This two traditional multiplexers or triplexer mostly use inductive input coupling device, the shortcoming of inductive input coupling device is to need a plurality of pads, and too many pad has adverse effect for electric property especially three border intermodulations, and be difficult to apply in broadband with for example, compared with multichannel (four multiplexers, five multiplexers) situation in.
Share the application of chamber on multiplexer, can reduce input 50 ohm line to the tie point between filter, be easy to 50 ohm line to the debugging between each filter, in one plane use comb shape harmonic oscillator can design to 5 ~ 6 passages.But in one plane design too many passage, can make the area of whole multiplexer very huge, not only to the mechanical structure of multiplexer and stress, can bring adverse effect, also can take valuable installation space.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of half-wavelength and shares chamber metal resonators.Adopt this half-wavelength to share chamber metal resonators, can eliminate the adverse effect that the mechanical structure of multiplexer and stress are brought, reduction equipment taking up room in one plane.
For overcoming the above problems, take following technical scheme:
Half-wavelength of the present invention shares chamber metal resonators and comprises filter body, in the one side of filter body, there is the first cover plate, in the filter body one side adjacent with the first cover plate, there is the first common resonant chamber, first resonant cavity of first path filter and first resonant cavity of second path filter, described the first common resonant chamber, between first resonant cavity of first path filter and first resonant cavity of second path filter, being isosceles triangle is arranged symmetrically with, in described the first common resonant chamber, there is common resonant post, in first resonant cavity of described first path filter, there is first resonant column, in first resonant cavity of described second path filter, there is first resonant column.Be characterized in there is the second cover plate on the another side of filter body, the filter body side at this cover plate place is relative and parallel with the first cover plate place face, in the filter body side at the second cover plate place, there is the second common resonant chamber, first resonant cavity of first resonant cavity of the 3rd path filter and the 4th path filter, described the second common resonant chamber, first resonant cavity of first resonant cavity of the 3rd path filter and the 4th path filter respectively with the first common resonant chamber, first resonant cavity of first path filter is corresponding with first resonant cavity of second path filter, in first resonant cavity of first resonant cavity of described the 3rd path filter and the 4th path filter, all there is first resonant column.
Described the second common resonant chamber and described the first Jian Youzhu hole, common resonant chamber, described common resonant post stretches in described the second common resonant chamber through behind described post hole, between described common resonant post and described post hole, has insulating case.The length of described common resonant post equals 1/2 wavelength, and the length of described the first resonant column equals 1/4 wavelength.On described common resonant post, have binding post, this binding post stretches out outside filter body and with input coupling line and is connected.
Described binding post passes outside filter body from the first common resonant chamber.
Described binding post also can pass outside filter body from the second common resonant chamber.
Further improvement of the present invention scheme is, between two the first resonant columns on the common resonant post both sides on filter body two sides and the same face, all there is division board, and parallel between three division boards on the same face, first resonant cavity of first path filter and first resonant cavity of second path filter in filter body one side are all communicated with the first common resonant chamber, and first resonant cavity of the 3rd path filter on filter body another side and first resonant cavity of the 4th path filter are all communicated with the second common resonant chamber.
Take such scheme, have the following advantages:
As can be seen from the above scheme, the present invention has the second cover plate on the another side of filter body, the filter body side at this cover plate place is relative and parallel with the first cover plate place face, in the filter body side at the second cover plate place, there is the second common resonant chamber, first resonant cavity of first resonant cavity of the 3rd path filter and the 4th path filter, described the second common resonant chamber, first resonant cavity of first resonant cavity of the 3rd path filter and the 4th path filter respectively with the first common resonant chamber, first resonant cavity of first path filter is corresponding with first resonant cavity of second path filter, in first resonant cavity of first resonant cavity of described the 3rd path filter and the 4th path filter, all there is first resonant column.Described the second common resonant chamber and described the first Jian Youzhu hole, common resonant chamber, described common resonant post stretches in described the second common resonant chamber through behind described post hole, between described common resonant post and described post hole, has insulating case.The length of described common resonant post equals 1/2 wavelength, and the length of described the first resonant column equals 1/4 wavelength.On described common resonant post, have binding post, this binding post stretches out outside filter body and with input coupling line and is connected.Utilize a half-wavelength to share chamber resonator, to arrange that multiplexer at grade changed into the three-dimensional three-dimensional spatial structure being arranged in two aspects (two-layer up and down) in the past, compare with background technology, the adverse effect that multiplexer mechanical structure and stress are brought, the reliability that has improved whole mechanical structure have not only been eliminated, also dwindle equipment taking up room in one plane, and be easy to processing.
Accompanying drawing explanation
Fig. 1 is that half-wavelength of the present invention shares chamber metal resonators structural representation;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, half-wavelength of the present invention shares chamber metal resonators and comprises filter body 6, is provided with the first cover plate 4 and the two is fixed together by screw in the one side of filter body 6.Described filter body 6 is cuboid, in filter body 6 one side adjacent with the first cover plate 4, be processed with the first common resonant chamber 2, first resonant cavity 7 of first path filter and first resonant cavity 9 of second path filter, in the middle of the inner side, a long limit of described the first common resonant chamber 2 in filter body 6 one sides, first resonant cavity 7 of described first path filter and first resonant cavity 9 of second path filter another inner side, long limit in described filter body 6 these faces, and make the first common resonant chamber 2, first resonant cavity 7 of first path filter and 9 of first resonant cavitys of second path filter are isosceles triangle and are arranged symmetrically with.In described the first common resonant chamber 2, be provided with common resonant post 1, in first resonant cavity 7 of described first path filter and in first resonant cavity 9 of described second path filter, be provided with first resonant column 8.
On the another side of filter body 6, be provided with the second cover plate 11, filter body 6 sides at this cover plate place are relative and parallel with the first cover plate 4 place faces, in filter body 6 sides at the second cover plate 11 places, be processed with the second common resonant chamber 12, first resonant cavity 13 of first resonant cavity of the 3rd path filter and the 4th path filter, described the second common resonant chamber 12, first resonant cavity 13 of first resonant cavity of the 3rd path filter and the 4th path filter respectively with the first common resonant chamber 2, first resonant cavity 7 of first path filter and first resonant cavity 9 of second path filter are corresponding, interior first resonant column 8 that is all provided with of first resonant cavity 13 of first resonant cavity of described the 3rd path filter and the 4th path filter.
On the next door that described the second common resonant chamber 12 and described the first common resonant chamber are 2, be processed with post hole, described common resonant post 1 stretches in described the second common resonant chamber 12 through behind described post hole, and a common resonant post 1 is used in two common resonant chambeies.Between described common resonant post 1 and described post hole, be provided with insulating case 10, to realize the insulation in 12, common resonant post 1 and the first common resonant chamber 2, the second common resonant chamber.Wherein, the length of described common resonant post 1 equals 1/2 wavelength, and the length of described first resonant column 8 equals 1/4 wavelength.On described common resonant post 1, binding post 3 is installed, this binding post stretches out outside filter body 6 and with input coupling line and is connected.
Wherein, described binding post 3 passes outside filter body 6 from the first common resonant chamber 2, also can pass outside filter body 6 from the second common resonant chamber 12.
Two 8 of first resonant columns on common resonant post 1 both sides on filter body 6 two sides and the same face are provided with division board 5, and 5 of three division boards on the same face parallel, first resonant cavity 7 of first path filter and first resonant cavity 9 of second path filter in filter body 6 one sides are all communicated with the first common resonant chamber 2, and first resonant cavity of the 3rd path filter on filter body 6 another sides and first resonant cavity 13 of the 4th path filter are all communicated with the second common resonant chamber 12.
The present invention utilizes a half-wavelength to share chamber resonator, to arrange that multiplexer at grade changed into the three-dimensional three-dimensional spatial structure being arranged in two aspects (two-layer up and down) in the past, compare with background technology, the adverse effect that can bring multiplexer mechanical structure and stress, the reliability that has improved whole mechanical structure have not only been eliminated, also dwindle equipment taking up room in one plane, and be easy to processing.
Claims (4)
1. half-wavelength shares chamber metal resonators, comprise filter body (6), in the one side of filter body (6), there is the first cover plate (4), in filter body (6) one side adjacent with the first cover plate (4), there are 7 first common resonant chambeies (2), first resonant cavity (7) of first path filter and first resonant cavity (9) of second path filter, described the first common resonant chamber (2), between first resonant cavity (7) of first path filter and first resonant cavity (9) of second path filter, being isosceles triangle is arranged symmetrically with, in described the first common resonant chamber (2), there is common resonant post (1), in first resonant cavity (7) of described first path filter, there is first resonant column (8), in first resonant cavity (9) of described second path filter, there is first resonant column (8), it is characterized in that there is the second cover plate (11) on the another side of filter body (6), filter body (6) side at this cover plate place is relative and parallel with the first cover plate (4) place face, in filter body (6) side at the second cover plate (11) place, there is the second common resonant chamber (12), first resonant cavity (13) of first resonant cavity of the 3rd path filter and the 4th path filter, described the second common resonant chamber (12), first resonant cavity (13) of first resonant cavity of the 3rd path filter and the 4th path filter respectively with the first common resonant chamber (2), first resonant cavity (7) of first path filter and first resonant cavity (9) of second path filter are corresponding, in first resonant cavity (13) of first resonant cavity of described the 3rd path filter and the 4th path filter, all there is first resonant column (8),
Between described the second common resonant chamber (12) and described the first common resonant chamber (2), there is post hole, described common resonant post (1) stretches in described the second common resonant chamber (12) through behind described post hole, between described common resonant post (1) and described post hole, has insulating case (10); The length of described common resonant post (1) equals 1/2 wavelength, and the length of described first resonant column (8) equals 1/4 wavelength; On described common resonant post (1), have binding post (3), this binding post stretches out outside filter body (6) and with input coupling line and is connected.
2. half-wavelength as claimed in claim 1 shares chamber metal resonators, it is characterized in that described binding post (3) passes outside filter body (6) from the first common resonant chamber (2).
3. half-wavelength as claimed in claim 1 shares chamber metal resonators, it is characterized in that described binding post (3) passes outside filter body (6) from the second common resonant chamber (12).
4. the half-wavelength as described in any one in claim 1 ~ 3 shares chamber metal resonators, it is characterized in that all there is division board (5) between common resonant post (1) both sides on filter body (6) two sides and two first resonant columns (8) on the same face, and parallel between three division boards (5) on the same face, first resonant cavity (7) of first path filter in filter body (6) one side and first resonant cavity of second path filter are all communicated with the first common resonant chamber (9), first resonant cavity of the 3rd path filter on filter body (6) another side and first resonant cavity (13) of the 4th path filter are all communicated with the second common resonant chamber (12).
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| CN103545588B CN103545588B (en) | 2015-04-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393391A (en) * | 2014-12-09 | 2015-03-04 | 中国电子科技集团公司第五十四研究所 | Low-frequency high-power resonator and electrically tunable band stop filter |
| CN104659446A (en) * | 2015-01-21 | 2015-05-27 | 江苏贝孚德通讯科技股份有限公司 | Mixed-mould medium duplexer applying metallic common cavity |
| CN113675566A (en) * | 2020-05-15 | 2021-11-19 | 大富科技(安徽)股份有限公司 | Communication device and filter thereof |
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| CN102623778A (en) * | 2012-03-20 | 2012-08-01 | 中国计量学院 | Cavity combiner with double-layered communal port |
| CN102683780A (en) * | 2011-11-15 | 2012-09-19 | 广东工业大学 | Multi-cavity filter taking coupled dual-gap cavity |
| CN202977664U (en) * | 2012-12-06 | 2013-06-05 | 深圳市大富科技股份有限公司 | Double-layer cavity radio frequency device |
| CN203134948U (en) * | 2013-02-02 | 2013-08-14 | 深圳市大富科技股份有限公司 | Cavity filter |
| CN203553324U (en) * | 2013-10-24 | 2014-04-16 | 江苏贝孚德通讯科技股份有限公司 | A half-wavelength shared-cavity metal resonator |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683780A (en) * | 2011-11-15 | 2012-09-19 | 广东工业大学 | Multi-cavity filter taking coupled dual-gap cavity |
| CN102623778A (en) * | 2012-03-20 | 2012-08-01 | 中国计量学院 | Cavity combiner with double-layered communal port |
| CN202977664U (en) * | 2012-12-06 | 2013-06-05 | 深圳市大富科技股份有限公司 | Double-layer cavity radio frequency device |
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| CN203553324U (en) * | 2013-10-24 | 2014-04-16 | 江苏贝孚德通讯科技股份有限公司 | A half-wavelength shared-cavity metal resonator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393391A (en) * | 2014-12-09 | 2015-03-04 | 中国电子科技集团公司第五十四研究所 | Low-frequency high-power resonator and electrically tunable band stop filter |
| CN104393391B (en) * | 2014-12-09 | 2017-07-04 | 中国电子科技集团公司第五十四研究所 | A kind of low frequency high power resonator and electricity adjust bandstop filter |
| CN104659446A (en) * | 2015-01-21 | 2015-05-27 | 江苏贝孚德通讯科技股份有限公司 | Mixed-mould medium duplexer applying metallic common cavity |
| CN113675566A (en) * | 2020-05-15 | 2021-11-19 | 大富科技(安徽)股份有限公司 | Communication device and filter thereof |
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| CN103545588B (en) | 2015-04-29 |
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