CN102136617A - Cavity filter, signal processing module and communication equipment - Google Patents
Cavity filter, signal processing module and communication equipment Download PDFInfo
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- CN102136617A CN102136617A CN2010106197284A CN201010619728A CN102136617A CN 102136617 A CN102136617 A CN 102136617A CN 2010106197284 A CN2010106197284 A CN 2010106197284A CN 201010619728 A CN201010619728 A CN 201010619728A CN 102136617 A CN102136617 A CN 102136617A
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Abstract
The embodiment of the invention discloses a cavity filter. The cavity filter comprises a cavity body, a cover plate, a first circuit board and a second circuit board, wherein the cover plate seals and covers the cavity body to form a resonant cavity and a circuit board accommodating area, wherein the first circuit board and the second circuit board are stacked in the circuit board accommodating area. In the cavity filter of the embodiment of the invention, due to the adoption of the configuration of circuit board stack, the circuit boards occupy small space, the structure is compact, and the volume of equipment is reduced; and simultaneously because the connecting paths among the circuit boards are shortened, the loss is reduced, and the product performance index and the reliability are improved. In addition, the embodiment of the invention also discloses a signal processing module and communication equipment.
Description
[technical field]
The embodiment of the invention relates to the communications field, and particularly a kind of cavity body filter also relates to a kind of signal processing module and communication equipment.
[background technology]
Cavity body filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication.In the base station, filter is used to select signal of communication, clutter or interference signal that the filtering communication signal frequency is outer.
Cavity body filter generally comprises three classes, and the first kind is a coaxial cavity filter, and second class is a dielectric filter, and the 3rd class is a waveguide filter.
See also Fig. 1 and Fig. 2, Fig. 1 has shown the schematic partial cross-sectional view of a kind of cavity body filter in the prior art and circuit board thereof.Fig. 2 has shown the plan view of Fig. 1.
This cavity body filter 10 comprises the first circuit board 11 and the second circuit board 12 of cover plate (figure do not show), cavity 16, at least two tilings, and cover plate capping cavity 16 forms resonant cavitys 13, and connector 19 is used to realize that resonant cavity 13 is connected with signal between the circuit board 11.
In the research process to prior art, the inventor finds that a plurality of circuit boards of cavity body filter are tiled in the cavity in the prior art, because that circuit board takes up room is more, has increased the volume of device, and then has made space availability ratio reduce.
[summary of the invention]
The embodiment of the invention provides a kind of cavity body filter, it comprises cavity, cover plate and first circuit board and second circuit board, cover plate capping cavity forms resonant cavity and circuit board holding area, and wherein, first circuit board and second circuit board are stacked to be arranged in the circuit board holding area.
The embodiment of the invention also provides a kind of communication equipment, and this communication device configured has above-mentioned cavity body filter, and this cavity body filter is located at the transceiver circuit part of communication equipment, is used for signal is selected.
The embodiment of the invention also provides a kind of signal processing module, and it comprises first circuit board, second circuit board and circuit board holding area, and wherein, this first circuit board is arranged in this circuit board holding area with this second circuit board is stacked.
Compared with prior art, products such as the cavity body filter of the embodiment of the invention are owing to adopted the stacked configuration of circuit board, circuit board takes up room little, compact conformation, reduced equipment volume, because access path shortening between each circuit board has reduced loss, product performance index and reliability have been improved simultaneously.
[description of drawings]
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.Wherein:
Fig. 1 has shown a kind of partial cross section's structural representation of cavity body filter in the prior art;
Fig. 2 has shown the plan view of cavity body filter shown in Figure 1;
Fig. 3 has shown the schematic partial cross-sectional view of cavity body filter according to one preferred embodiment of the present invention;
Fig. 4 has shown according to the present invention the schematic partial cross-sectional view of the cavity body filter of another preferred embodiment;
Fig. 5 to Fig. 8 has shown according to the present invention the schematic perspective view of the part parts of the cavity body filter of another preferred embodiment, and wherein Fig. 5 has omitted cover plate, second circuit board, tertiary circuit plate and division board; Fig. 6 has omitted cover plate, second circuit board and tertiary circuit plate; Fig. 7 has omitted cover plate and tertiary circuit plate; And Fig. 8 has omitted cover plate;
Fig. 9 and Figure 10 have shown according to the present invention the sectional perspective schematic diagram of the cavity body filter of another preferred embodiment, and wherein Fig. 9 has omitted circuit board and division board wherein;
Figure 11 has shown according to the present invention the sectional perspective schematic diagram of the cavity body filter of another preferred embodiment;
Figure 12 has shown according to the present invention the part plan schematic diagram of the cavity body filter of another preferred embodiment;
Figure 13 has shown along the schematic cross-section of A-A section among Figure 12;
Figure 14 has shown along the schematic cross-section of B-B section among Figure 12; And
Figure 15 has shown according to the present invention the schematic partial cross-sectional view of the cavity body filter of another preferred embodiment.
[embodiment]
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of cavity body filter, it comprises cavity, cover plate and first circuit board and second circuit board, cover plate capping cavity forms resonant cavity and circuit board holding area, and wherein, first circuit board and second circuit board are stacked to be arranged in the circuit board holding area.This cavity body filter is owing to adopted the stacked configuration of circuit board, and circuit board takes up room little, and compact conformation has reduced equipment volume, because access path shortening between each circuit board has reduced loss, has improved product performance index and reliability simultaneously.
The embodiment of the invention also provides a kind of communication equipment, and this communication device configured has above-mentioned cavity body filter, and this cavity body filter is located at the transceiver circuit part of communication equipment, is used for signal is selected.
The embodiment of the invention also provides a kind of signal processing module, and it comprises first circuit board, second circuit board and circuit board holding area, and wherein, this first circuit board is arranged in this circuit board holding area with this second circuit board is stacked.
The present invention is described in detail below in conjunction with drawings and Examples.
Embodiment one
A kind of cavity body filter.As shown in Figure 3, this cavity body filter 50 comprises cavity 56, cover plate (figure does not show), first circuit board 51 and second circuit board 52.Cavity 56 comprises circuit board holding area 55, and cover plate capping cavity 56 forms resonant cavity (figure does not show).First circuit board 51 and second circuit board 52 stacked being arranged in the circuit board holding area 55.Wherein circuit board holding area 55 both can form by cover plate capping cavity 56, can only have cavity 56 to form again, can also combine with cavity 56 by other mechanisms outside the cover plate to form.This cavity body filter 50 is owing to adopted the stacked configuration of circuit board 51,52, and circuit board takes up room little, and compact conformation has reduced equipment volume.
Embodiment two
A kind of cavity body filter.As shown in Figure 4, this cavity body filter 100 comprises cavity 160, cover plate (figure does not show) and first circuit board 110 and second circuit board 120, cover plate capping cavity 160 forms resonant cavity 102 and circuit board holding area 101, wherein, first circuit board 110 and second circuit board 102 stacked being arranged in the circuit board holding area 101.This cavity body filter 100 is owing to adopted the stacked configuration of circuit board 110,120, and circuit board takes up room little, and compact conformation has reduced equipment volume.
In a preferred embodiment, cavity body filter 100 also comprises the division board of being located between first circuit board 110 and the second circuit board 120 150, and division board 150 makes between first circuit board 110 and the second circuit board 120 isolation that realizes radiofrequency signal.So both saved the shared space of circuit board, can guarantee can not cause the interference of radiofrequency signal again because circuit board is stacked.
In a preferred embodiment, this cavity body filter 100 also comprises signal connector 190, and signal connector 190 is used to realize that the radiofrequency signal between first circuit board 110 resonant cavity 102 connects.In a preferred embodiment, cavity 160 also comprises partition wall 161, partition wall 161 separates resonant cavity 102 and circuit board holding area 101, and partition wall 161 is provided with via hole 162, and signal connector 190 passes via hole 162 to connect first circuit board 110 resonant cavity 102.Wherein, signal connector 190 can be connected by welding manner with first circuit board 110.
In a preferred embodiment, cavity body filter 100 also comprises the tertiary circuit plate of being located in the circuit board holding area 101 130, tertiary circuit plate 130 stacked being located on first circuit board 110 and the second circuit board 120, and near second circuit board 120 settings.
Embodiment three
A kind of cavity body filter.See also Fig. 5 to Fig. 8, this cavity body filter 200 comprises cavity 260, cover plate (figure does not show), first circuit board 210, second circuit board 220, tertiary circuit plate 230, the 4th circuit board 240, division board 250, dividing wall 261 and circuit board holding area 201.Wherein, in order to know show internal structure, Fig. 5 has omitted cover plate, second circuit board 220, tertiary circuit plate 230 and division board 250; Fig. 6 has omitted cover plate, second circuit board 220 and tertiary circuit plate 230; Fig. 7 has omitted cover plate and tertiary circuit plate 230; Fig. 8 has omitted cover plate.
In a preferred embodiment, cavity body filter 200 also comprises the strutting piece of being located between first circuit board 210 and the second circuit board 220 270, and strutting piece 270 is used to keep the relative fixed position between first circuit board 210 and the second circuit board 220 to concern.Wherein the concrete structure of strutting piece 270 and annexation will be introduced in conjunction with Figure 13 and Figure 14 hereinafter in detail.
In a preferred embodiment, cavity body filter 200 also comprises the circuit board connector of being located between first circuit board 210 and the second circuit board 220 (not sign), and this circuit board connector is used to realize that the circuit between first circuit board 210 and the second circuit board 220 connects.Equally, as shown in Figure 7, between second circuit board 220 and tertiary circuit plate 230, also be provided with the circuit board connector.The circuit board connector can be cable spare or contact pin connector, and wherein contact pin connector can comprise row's pin and mother row 281, has shown row female 281 schematic diagram among Fig. 7.Wherein the concrete structure of circuit board connector and annexation will be introduced in conjunction with Figure 15 hereinafter in detail.
As modification, division board 250 or strutting piece 270 can be set between second circuit board 220 and tertiary circuit plate 230 to above embodiment.
In a preferred embodiment, cavity body filter 200 comprises that also the 4th circuit board 240, the four circuit boards of being located in the circuit board holding area 201 240 are provided with respect to first circuit board 210 tilings, and with respect to second circuit board 220 stacked settings.In a preferred embodiment, cavity 260 also comprises the isolation bar of being located between first circuit board 210 and the 4th circuit board 240 263, and isolation bar 263 makes between first circuit board 210 and the 4th circuit board 240 isolation that realizes radiofrequency signal.
Embodiment four
A kind of cavity body filter.See also Fig. 9 and Figure 10, this cavity body filter 300 is basic identical with the cavity body filter 200 of above-mentioned second embodiment, comprises cavity 360, dividing wall 361, first circuit board 310 and the 4th circuit board 340 equally.Difference is that this cavity body filter 300 also comprises signal connector 390, and signal connector 390 is used to realize that first circuit board 310 and the 4th circuit board 340 are connected with radiofrequency signal between the resonant cavity (sign).
In a preferred embodiment, partition wall 361 separates resonant cavity and circuit board holding area (not sign), and partition wall 361 is provided with via hole 362, and signal connector 390 passes via hole 362 to connect the first, the 4th circuit board resonant cavity respectively.
Embodiment five
A kind of cavity body filter.See also Figure 11, this cavity body filter 400 and cavity body filter shown in Figure 10 300 are basic identical, comprise first circuit board 410 and signal connector 490 equally.Difference is that this cavity body filter 400 does not comprise the 4th circuit board that is provided with first circuit board 410 tilings.Also be that first circuit board 410 has occupied circuit board holding area (not sign) in the horizontal direction substantially.Need to prove, among this embodiment, do not influence in the vertical direction stacked second, third circuit board that is provided with simultaneously, with the minimizing of implementation space.
Embodiment six
A kind of cavity body filter.Please in the lump referring to Figure 12 to Figure 14, this cavity body filter 500 comprises cavity 560, first circuit board 510, second circuit board 520, tertiary circuit plate 530, is located at the division board 550 between first and second circuit boards, and is located at the strutting piece 570 between division board 550 and the tertiary circuit plate 530.Wherein, strutting piece 570 runs through second circuit board 520, and an end of strutting piece 570 is realized fixing by screw 572 and tertiary circuit plate 530, the other end of strutting piece 570 is realized fixing by screw (figure does not show) and division board 550, and is provided with the annulus convex 577 that is used to support second circuit board 520 at the position that strutting piece 570 contacts with second circuit board 520.
Embodiment seven
A kind of cavity body filter.See also Figure 15, this cavity body filter 600 comprises cavity 660, first circuit board 610, second circuit board 620, tertiary circuit plate 630, is located at the division board 650 between first and second circuit boards, and is located at the strutting piece 670 between division board 650 and the tertiary circuit plate 630.These parts and preamble are introduced roughly the same, no longer repeat to introduce.Institute's difference is that cavity body filter 600 also comprises the circuit board connector of being located between first circuit board 610 and the second circuit board 620 680, and this circuit board connector 680 is used to realize that the circuit between first circuit board 610 and the second circuit board 620 connects.Equally, as shown in figure 15, between second circuit board 620 and tertiary circuit plate 630, also be provided with circuit board connector 680.Circuit board connector 680 can be cable spare or contact pin connector.Wherein, shown in Figure 15 contact pin connector, it comprises row's pin 682 and mother row 681, and the row mother can be welded on the circuit board, and row's pin connects with row's female plug.
In the present embodiment,, reduced loss, improved product performance index and reliability because access path shortens between each circuit board.
Embodiment eight
A kind of communication equipment.The with good grounds previously described cavity body filter of this communication device configured, cavity body filter is located at the transceiver circuit part of communication equipment, is used for signal is selected.
Embodiment eight
A kind of signal processing module.This signal processing module comprises first circuit board, second circuit board and circuit board holding area, and wherein, first circuit board and second circuit board are stacked to be arranged in the circuit board holding area.In a preferred embodiment, signal processing module also comprises division board, strutting piece or the circuit board connector of being located between first circuit board and the second circuit board, division board makes between first circuit board and the second circuit board isolation that realizes radiofrequency signal, strutting piece is used to keep the relative fixed position between first circuit board and the second circuit board to concern, the circuit board connector is used to realize that the circuit between first circuit board and the second circuit board connects.
To sum up, those skilled in the art understand easily, the disclosed cavity body filter of the embodiment of the invention, signal processing module and communication equipment are owing to adopted the stacked configuration of circuit board, circuit board takes up room little, compact conformation has reduced equipment volume, simultaneously because access path shortening between each circuit board, reduce loss, improved product performance index and reliability.
Need to prove that this paper mainly illustrates the embodiment of the invention with two or four stacked situations of circuit board, still, can as required which floor the circuit board holding area be divided in the practice, each layer all can be placed one or several circuit board.Simultaneously, can adopt division board or isolation bar that the circuit boards of different layer or same layer is come as required.Can also adopt connector or cable to connect between the circuit board.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art can carry out various modifications to the present invention after reading present patent application under the situation that does not break away from the spirit and scope of the present invention.
Claims (15)
1. cavity body filter, it comprises cavity, cover plate, first circuit board and second circuit board, described cavity comprises the circuit board holding area, the described cavity of described cover plate capping forms resonant cavity, and it is characterized in that: described first circuit board and described second circuit board are stacked to be arranged in the described circuit board holding area.
2. cavity body filter according to claim 1, it is characterized in that: described cavity body filter also comprises the division board of being located between described first circuit board and the described second circuit board, and described division board makes between described first circuit board and the described second circuit board isolation that realizes radiofrequency signal.
3. cavity body filter according to claim 1, it is characterized in that: described cavity body filter also comprises the strutting piece of being located between described first circuit board and the described second circuit board, and described strutting piece is used to keep the relative fixed position between described first circuit board and the described second circuit board to concern.
4. according to claim 2 or 3 described cavity body filters, it is characterized in that: described cavity body filter also comprises the circuit board connector of being located between described first circuit board and the described second circuit board, and described circuit board connector is used to realize that the circuit between described first circuit board and the described second circuit board connects.
5. cavity body filter according to claim 4 is characterized in that: described circuit board connector is cable spare or contact pin connector.
6. cavity body filter according to claim 1 is characterized in that: described cavity body filter also comprises signal connector, and described signal connector is used to realize that the radiofrequency signal between described first circuit board and the described resonant cavity connects.
7. cavity body filter according to claim 6, it is characterized in that: described cavity also comprises partition wall, described partition wall separates described resonant cavity and circuit board holding area, described partition wall is provided with via hole, and described signal connector passes described via hole to connect described first circuit board and described resonant cavity.
8. cavity body filter according to claim 1, it is characterized in that: described cavity body filter also comprises the tertiary circuit plate of being located in the described circuit board holding area, described tertiary circuit flaggy is stacked on described first circuit board and the described second circuit board, and near described second circuit board setting.
9. cavity body filter according to claim 8 is characterized in that: described cavity body filter also comprises division board, strutting piece or the circuit board connector of being located between described second circuit board and the described tertiary circuit plate.
10. cavity body filter according to claim 8, it is characterized in that: described cavity body filter also comprises the division board of being located between described first circuit board and the described second circuit board, and be located at strutting piece between described tertiary circuit plate and the described division board, described strutting piece runs through described second circuit board, and an end of described strutting piece is firm and hard existing fixing by screw and described tertiary circuit, the other end of described strutting piece is realized fixing by screw and described division board, and is provided with the annulus convex that is used to support described second circuit board at the position that described strutting piece contacts with described second circuit board.
11. according to each described cavity body filter among claim 1-3, the 6-10, it is characterized in that: described cavity body filter also comprises the 4th circuit board of being located in the described circuit board holding area, described the 4th circuit board is provided with respect to described first circuit board tiling, and with respect to the stacked setting of described second circuit board.
12. cavity body filter according to claim 11, it is characterized in that: described cavity also comprises the isolation bar of being located between described first circuit board and described the 4th circuit board, and described isolation bar makes between described first circuit board and described the 4th circuit board isolation that realizes radiofrequency signal.
13. a communication equipment is characterized in that: any described cavity body filter in the with good grounds claim 1 to 12 of described communication device configured, described cavity body filter is located at the transceiver circuit part of described communication equipment, is used for signal is selected.
14. a signal processing module, it comprises first circuit board, second circuit board and circuit board holding area, it is characterized in that: described first circuit board and described second circuit board are stacked to be arranged in the described circuit board holding area.
15. signal processing module according to claim 14, it is characterized in that: described signal processing module also comprises the division board of being located between described first circuit board and the described second circuit board, strutting piece or circuit board connector, described division board makes between described first circuit board and the described second circuit board isolation that realizes radiofrequency signal, described strutting piece is used to keep the relative fixed position between described first circuit board and the described second circuit board to concern, described circuit board connector is used to realize that the circuit between described first circuit board and the described second circuit board connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106197284A CN102136617A (en) | 2010-12-31 | 2010-12-31 | Cavity filter, signal processing module and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106197284A CN102136617A (en) | 2010-12-31 | 2010-12-31 | Cavity filter, signal processing module and communication equipment |
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| CN102136617A true CN102136617A (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106197284A Pending CN102136617A (en) | 2010-12-31 | 2010-12-31 | Cavity filter, signal processing module and communication equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196676A (en) * | 2016-03-15 | 2017-09-22 | 南京特信超导技术有限公司 | FDD multi-standard high-temperature superconductor radio-frequency front-end adapters |
| CN107295773A (en) * | 2017-06-21 | 2017-10-24 | 广州吉欧电子科技有限公司 | A kind of structure that multiple electronic modules are installed |
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Application publication date: 20110727 |