CN103762402B - A kind of cavity body filter - Google Patents
A kind of cavity body filter Download PDFInfo
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Abstract
The invention discloses a kind of cavity body filter, a kind of cavity body filter, including cavity, described cavity is provided with input/output end port, including multiple resonator cavity, at least one coupled structure being coupled with resonator cavity and attachment means in described cavity, described attachment means includes the body of rod and is positioned at the end at body of rod two ends, one end of the described body of rod connects described input/output end port, and at least one coupled structure is connected with the body of rod of described attachment means.The cavity body filter that the embodiment of the present invention provides can make cloth chamber more flexible, it is possible to makes full use of the cavity space of cavity body filter.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of cavity body filter.
Background technology
Wave filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication.Completing signal in communication system to launch and in the base station of reception, wave filter is used for selecting signal of communication, filters the clutter outside communication signal frequency or interference signal.
Cavity body filter includes the multiple resonator cavitys in cavity and cavity, and the input/output terminal at cavity body filter is provided with input/output coupled structure, it is therefore an objective to derive by external input signal feed-in wave filter or by the signal of device after filtering.In the wave filter such as duplexer in cavity body filter or combiner, generally multiple signals share an antenna and complete transmitting/receiving of signal, multiple signals then share the input/output end port transmission signal of a cavity body filter, and input/output port will arrange multiple coupled structure.
As a example by duplexer in cavity body filter, as shown in Figure 1, duplexer of the prior art include two accept or launch different frequency signals transmit/receive chamber 111 and 112, share the input/output end port 120 of an antenna, the connecting rod 130 having for signal transmission is connected on input/output end port, two transmit/receive chamber and by the coupled structure 141 and 142 being connected in connecting rod, respective signal are passed through input/output end port 120 feed-in or derivation respectively, usual two coupled structures are all arranged at connecting rod 130 end, i.e. coupled structure is drawn from the same position of connecting rod, and lead to and transmit/receive cavity.
To in the research of prior art and practice process, the inventors found that, in cavity body filter, the coupling position of input/output end port has the biggest relation with the cloth chamber of cavity, and the port that coupled structure is all arranged at connecting rod can make cloth chamber be restricted, it is unfavorable for the making full use of of cavity space of cavity body filter, is unfavorable for the miniaturization requirement of cavity body filter.
Summary of the invention
Unreasonable in order to solve cavity layout of the prior art, that cavity space is not fully utilized problem, the invention provides a kind of cavity body filter, and cloth chamber can be made more flexible, and cavity space is fully used.
A kind of cavity body filter that the present invention provides, including cavity, described cavity is provided with input/output end port, multiple resonator cavity is included in described cavity, at least one coupled structure being coupled with resonator cavity and attachment means, described attachment means includes the body of rod and is positioned at the end at body of rod two ends, and an end of described attachment means connects described input/output end port, and at least one coupled structure is connected with the body of rod of described attachment means.
Preferably, described attachment means includes the connecting rod being connected with input/output end port, the structure capacitive being connected with connecting rod one end；At least one coupled structure is connected on the body of rod of described connecting rod or on the body of rod of described structure capacitive or on the connecting portion of described connecting rod and described structure capacitive.
Preferably, described attachment means includes the connecting rod being connected with input/output end port, the structure capacitive being connected with connecting rod one end, the low pass filter that is connected with described structure capacitive one end；Between the end being connected with structure capacitive of that at least one coupled structure is connected to described connecting rod and that input/output end port is connected end extremely described low pass filter.
Preferably, described attachment means includes the connecting rod being connected with input/output end port, the low pass filter being connected with connecting rod one end；Between end to the end being connected with connecting rod of described low pass filter that at least one coupled structure is connected to of described connecting rod and input/output end port is connected.
Preferably, described connecting rod is adapter inner wire.
Preferably, described connecting rod is adapter inner wire and connects mobile jib, and described adapter inner wire connects input/output end port, and described connection mobile jib connects one end of described adapter inner wire.
Preferably, another end of the described attachment means body of rod connects coupled structure.
Preferably, described attachment means is arranged in the dividing wall in cavity, and the body of rod of described attachment means has the side port for deriving described coupled structure.
Preferably, being provided with resonant rod in described resonator cavity, described coupled structure is tap line or tap sheet, and one end of described tap line or tap sheet is connected with described attachment means, and the other end of tap line or tap sheet is connected on described resonant rod.
Preferably, being provided with resonant rod in described resonator cavity, described coupled structure is coupling disc, and described coupling disc includes a body of rod and is positioned at the card of body of rod one end, the free end of the body of rod of described coupling disc connects described attachment means, and the card of described coupling disc is relative with described resonant rod.
Preferably, described cavity body filter is duplexer, combiner or tower amplifier.
The present invention implements the cavity body filter provided, its coupled structure can be arranged in attachment means flexibly, because the position of coupled structure determines first chamber and the position in chamber, end, therefore can require to select first chamber or the position in chamber, end according to the optimal cloth chamber of resonator cavity, and do not limited by coupled structure, all being arranged in attachment means port position relative to coupled structure of the prior art, it is flexible that cloth chamber becomes, it is possible to makes full use of cavity space.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is cavity body filter coupled structure schematic diagram in prior art；
Fig. 2 is the profile of coupled structure in a kind of cavity body filter in the embodiment of the present invention one；
Fig. 3 is the profile of coupled structure in a kind of cavity body filter in the embodiment of the present invention two；
Fig. 4 is the profile of coupled structure in a kind of cavity body filter in the embodiment of the present invention four.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one,
A kind of cavity body filter, as shown in Figure 2, including cavity 210, the input/output end port 220 on cavity, in cavity 210, include multiple resonator cavity, at least one coupled structure being coupled with resonator cavity and attachment means 230, as a example by duplexer, it is 241 and 242 respectively that the coupled structure in the embodiment of the present invention is two, and attachment means includes the body of rod and is positioned at the end at body of rod two ends, one end of the body of rod connects input/output end port, and at least one coupled structure is connected with the body of rod of attachment means.
In the embodiment of the present invention, attachment means is connecting rod, connecting rod can be adapter inner wire, connecting rod can also be adapter inner wire and the connecting rod connecting mobile jib combination, and adapter inner wire connects input/output end port, connects mobile jib and connects one end of adapter inner wire.
Coupled structure is for or deriving signal the signal in cavity by input/output end port by input/output end port feed-in cavity, radiofrequency signal enters cavity body filter from input port, pass through connecting rod, coupled structure in connecting rod is by the most first for a resonator cavity of signal introduction chamber fluid filter chamber, signal is again via multiple resonator cavitys through design with arrangement, final by output port sending out signals, same output port also connects the connecting rod having band coupled structure, signal has passed through last resonator cavity in cavity i.e. chamber, end, by the coupled structure of output port, signal will be coupled out output port, finally give desired signal.When there are multiple signals and sharing an input or output port, then multichannel coupled structure can be set in connecting rod.
Sharing an input or the duplexer of output port for two paths of signals shown in Fig. 2, including two coupled structures, the most also coupled structure is connected to the end of connecting rod, and the position of the coupled structure described in figure is the one of various embodiments.Coupled structure during the present invention implements can be arranged in connecting rod flexibly, because the position of coupled structure determines first chamber and the position in chamber, end, therefore can require to select first chamber or the position in chamber, end according to the optimal cloth chamber of resonator cavity, and do not limited by coupled structure, connecting rod end position all it is arranged in relative to coupled structure of the prior art, it is flexible that cloth chamber becomes, it is possible to makes full use of cavity space.
Wherein, connecting rod is arranged in the dividing wall in cavity, and the body of rod of connecting rod has the side port for deriving coupled structure.
Being provided with resonant rod in resonator cavity in the embodiment of the present invention, coupled structure can be tap line or tap sheet, and one end of tap line or tap sheet is connected with connecting rod, and the other end of tap line or tap sheet is connected on resonant rod.
Coupled structure in the embodiment of the present invention can also is that the coupled structure of coupling disc, concrete, coupling disc includes a body of rod and is positioned at the card of body of rod one end, and the free end of the body of rod of described coupling disc connects described attachment means, and the card of described coupling disc is relative with described resonant rod.
In the embodiment of the present invention, coupled structure can also be the coupled structure of other kind of form, and the form of coupled structure is not construed as limiting the invention.The number of the coupled structure of the present invention can have multiple, is not limited by present embodiment.The arrangement position of coupled structure is also not necessarily limited to a kind of embodiment of the present invention, and coupled structure can require freely to arrange in connecting rod according to cloth chamber.
The cavity body filter of the present invention can be duplexer, combiner or tower amplifier.
Embodiment two,
A kind of cavity body filter, as shown in Figure 3, including cavity 310, cavity 310 is provided with input/output end port 320, multiple resonator cavity is included in cavity, at least one coupled structure being coupled with resonator cavity and attachment means, to share as a example by an input or output port by two paths of signals in this enforcement, such as duplexer, it is 341 and 342 respectively including two coupled structures, attachment means includes the body of rod and is positioned at the end at body of rod two ends, one end of the described body of rod connects described input/output end port, at least one coupled structure is connected with the body of rod of described attachment means.
The body of rod of the attachment means in the present embodiment includes and input/output end port phase connecting rod 330, one end of connecting rod is also associated with low pass filter 331, between end to the end being connected with connecting rod of described low pass filter that at least one coupled structure is connected to of connecting rod and input/output end port is connected.I.e. for without by the signal of low pass filter, coupled structure can be arranged in connecting rod, such as coupled structure 342, needs can be arranged on the other end of low pass filter by the coupled structure of low pass filter, such as coupled structure 341.
Coupled structure during the present invention implements can be arranged in connecting rod flexibly, because the position of coupled structure determines first chamber and the position in chamber, end, therefore can require to select first chamber or the position in chamber, end according to the optimal cloth chamber of resonator cavity, and do not limited by coupled structure, connecting rod port position all it is arranged in relative to coupled structure of the prior art, it is flexible that cloth chamber becomes, it is possible to makes full use of cavity space.
In the embodiment of the present invention, attachment means is connecting rod, connecting rod can be adapter inner wire, connecting rod can also be adapter inner wire and the connecting rod connecting mobile jib combination, and adapter inner wire connects input/output end port, connects mobile jib and connects one end of adapter inner wire.
Wherein, connecting rod is arranged in the dividing wall in cavity, and the body of rod of connecting rod has the side port for deriving coupled structure.
Being provided with resonant rod in resonator cavity in the embodiment of the present invention, coupled structure can be tap line or tap sheet, and one end of tap line or tap sheet is connected with connecting rod, and the other end of tap line or tap sheet is connected on resonant rod.
Coupled structure in the embodiment of the present invention can also is that the coupled structure of coupling disc, concrete, coupling disc includes a body of rod and is positioned at the card of body of rod one end, and the free end of the body of rod of described coupling disc connects described attachment means, and the card of described coupling disc is relative with described resonant rod.
In the embodiment of the present invention, coupled structure can also be the coupled structure of other kind of form, and the form of coupled structure is not construed as limiting the invention.The number of the coupled structure of the present invention can have multiple, is not limited by present embodiment.The arrangement position of coupled structure is also not necessarily limited to a kind of embodiment of the present invention, and coupled structure can require freely to arrange in connecting rod according to cloth chamber.
The cavity body filter of the present invention can be duplexer, combiner or tower amplifier.
Embodiment three,
A kind of cavity body filter, including cavity, cavity is provided with input/output end port, multiple resonator cavity is included in cavity, at least one coupled structure being coupled with resonator cavity and attachment means, attachment means includes the body of rod and is positioned at the end at body of rod two ends, and an end of the body of rod connects input/output end port, and at least one coupled structure is connected with the body of rod of attachment means.
Sharing as a example by an input or output port by two paths of signals, such as duplexer, the body of rod of attachment means includes the connecting rod being connected with input/output end port, the structure capacitive being connected with connecting rod one end；At least one coupled structure is connected on the body of rod of connecting rod or on the body of rod of structure capacitive or on the connecting portion of connecting rod and described structure capacitive.Described connecting portion can be the end of structure capacitive can also be the end of connecting rod.Structure capacitive has the effect of lightning protection, and for without by the signal of structure capacitive, coupled structure can be arranged on the connecting rod body of rod, needs can be arranged on the other end of structure capacitive by the coupled structure of structure capacitive.
Coupled structure during the present invention implements can be arranged in connecting rod flexibly, because the position of coupled structure determines first chamber and the position in chamber, end, therefore can require to select first chamber or the position in chamber, end according to the optimal cloth chamber of resonator cavity, and do not limited by coupled structure, connecting rod port position all it is arranged in relative to coupled structure of the prior art, it is flexible that cloth chamber becomes, it is possible to makes full use of cavity space.
In the embodiment of the present invention, attachment means is connecting rod, connecting rod can be adapter inner wire, connecting rod can also be adapter inner wire and the connecting rod connecting mobile jib combination, and adapter inner wire connects input/output end port, connects mobile jib and connects one end of adapter inner wire.
Wherein, connecting rod is arranged in the dividing wall in cavity, and the body of rod of connecting rod has the side port for deriving coupled structure.
Being provided with resonant rod in resonator cavity in the embodiment of the present invention, coupled structure can be tap line or tap sheet, and one end of tap line or tap sheet is connected with connecting rod, and the other end of tap line or tap sheet is connected on resonant rod.
Coupled structure in the embodiment of the present invention can also is that the coupled structure of coupling disc, concrete, coupling disc includes a body of rod and is positioned at the card of body of rod one end, and the free end of the body of rod of described coupling disc connects described attachment means, and the card of described coupling disc is relative with described resonant rod.
In the embodiment of the present invention, coupled structure can also be the coupled structure of other kind of form, and the form of coupled structure is not construed as limiting the invention.The number of the coupled structure of the present invention can have multiple, is not limited by present embodiment.The arrangement position of coupled structure is also not necessarily limited to a kind of embodiment of the present invention, and coupled structure can require freely to arrange in connecting rod according to cloth chamber.
The cavity body filter of the present invention can be duplexer, combiner or tower amplifier.
Embodiment four,
A kind of cavity body filter, including cavity 410, cavity 410 is provided with input/output end port 420, multiple resonator cavity is included in cavity, at least one coupled structure being coupled with resonator cavity and attachment means, to share as a example by an input or output port by two paths of signals in this enforcement, such as duplexer, it is 441 and 442 respectively including two coupled structures, attachment means includes the body of rod and is positioned at the end at body of rod two ends, one end of the described body of rod connects described input/output end port, and at least one coupled structure is connected with the body of rod of described attachment means.
Share as a example by an input or output port by two paths of signals, such as duplexer, the attachment means body of rod includes the connecting rod 430 being connected with input/output end port, the structure capacitive 431 being connected with connecting rod one end, the low pass filter 432 that is connected with described structure capacitive one end；Between the end being connected with structure capacitive of that at least one coupled structure is connected to described connecting rod and that input/output end port is connected end extremely described low pass filter.
For without by the signal of low pass filter, coupled structure can be arranged on connecting rod and structure capacitive, such as 442, needs the coupled structure by structure capacitive and low pass filter can be arranged on another end of low pass filter, such as 441.
Coupled structure during the present invention implements can be arranged in connecting rod flexibly, because the position of coupled structure determines first chamber and the position in chamber, end, therefore can require to select first chamber or the position in chamber, end according to the optimal cloth chamber of resonator cavity, and do not limited by coupled structure, connecting rod port position all it is arranged in relative to coupled structure of the prior art, it is flexible that cloth chamber becomes, it is possible to makes full use of cavity space.
In the embodiment of the present invention, attachment means is connecting rod, connecting rod can be adapter inner wire, connecting rod can also be adapter inner wire and the connecting rod connecting mobile jib combination, and adapter inner wire connects input/output end port, connects mobile jib and connects one end of adapter inner wire.
Wherein, connecting rod is arranged in the dividing wall in cavity, and the body of rod of connecting rod has the side port for deriving coupled structure.
Being provided with resonant rod in resonator cavity in the embodiment of the present invention, coupled structure can be tap line or tap sheet, and one end of tap line or tap sheet is connected with connecting rod, and the other end of tap line or tap sheet is connected on resonant rod.
Coupled structure in the embodiment of the present invention can also is that the coupled structure of coupling disc, concrete, coupling disc includes a body of rod and is positioned at the card of body of rod one end, and the free end of the body of rod of described coupling disc connects described attachment means, and the card of described coupling disc is relative with described resonant rod.
In the embodiment of the present invention, coupled structure can also be the coupled structure of other kind of form, and the form of coupled structure is not construed as limiting the invention.The number of the coupled structure of the present invention can have multiple, is not limited by present embodiment.The arrangement position of coupled structure is also not necessarily limited to a kind of embodiment of the present invention, and coupled structure can require freely to arrange in connecting rod according to cloth chamber.
The cavity body filter of the present invention can be duplexer, combiner or tower amplifier.
The cavity body filter that above embodiment of the present invention provided and include that in this, base station of cavity body filter is described in detail, wherein:
The present invention implements the cavity body filter provided, its coupled structure can be arranged in connecting rod flexibly, because the position of coupled structure determines first chamber and the position in chamber, end, therefore can require to select first chamber or the position in chamber, end according to the optimal cloth chamber of resonator cavity, and do not limited by coupled structure, all being arranged in connecting rod port position relative to coupled structure of the prior art, it is flexible that cloth chamber becomes, it is possible to makes full use of cavity space.
Principle and the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, the most all will change, in sum, this specification content should not be construed as limitation of the present invention.
Claims (8)
1. a cavity body filter, it is characterized in that, including cavity, described cavity is provided with input/output end port, includes multiple resonator cavity, at least one coupled structure being coupled with resonator cavity in described cavity, and attachment means, described attachment means includes the body of rod, and an end of the described body of rod connects described input/output end port, and at least one coupled structure is connected with the body of rod of described attachment means；
The described body of rod includes the connecting rod being connected with input/output end port, the structure capacitive being connected with connecting rod one end；
The end that at least one coupled structure is connected to described connecting rod and input/output end port is connected is between connecting rod and the connecting portion of structure capacitive, or described connecting portion is between the terminal part of structure capacitive, or on described connecting portion；
Or, the described body of rod includes the connecting rod being connected with input/output end port, the structure capacitive being connected with connecting rod one end, the low pass filter that is connected with described structure capacitive one end；
Between the end being connected with structure capacitive of that at least one coupled structure is connected to described connecting rod and that input/output end port is connected end extremely described low pass filter；
Or, the described body of rod includes the connecting rod being connected with input/output end port, the low pass filter being connected with connecting rod one end；
Between end to the end being connected with connecting rod of described low pass filter that at least one coupled structure is connected to of described connecting rod and input/output end port is connected.
Cavity body filter the most according to claim 1, it is characterised in that described connecting rod is adapter inner wire.
Cavity body filter the most according to claim 1, it is characterised in that described connecting rod is adapter inner wire and connects mobile jib, and described adapter inner wire connects input/output end port, and described connection mobile jib connects one end of described adapter inner wire.
Cavity body filter the most according to claim 1, it is characterised in that another end of the described body of rod connects coupled structure.
Cavity body filter the most according to claim 4, it is characterised in that described attachment means is arranged in the dividing wall in cavity, the body of rod of described attachment means has the side port for deriving described coupled structure.
6. according to the cavity body filter described in claim 4 or 5, it is characterized in that, in described resonator cavity, resonant rod is installed, described coupled structure is tap line or tap sheet, one end of described tap line or tap sheet is connected with described attachment means, and the other end of tap line or tap sheet is connected on described resonant rod.
7. according to the cavity body filter described in claim 4 or 5, it is characterized in that, in described resonator cavity, resonant rod is installed, described coupled structure is coupling disc, described coupling disc includes a body of rod and is positioned at the card of body of rod one end, the free end of the body of rod of described coupling disc connects described attachment means, and the card of described coupling disc is relative with described resonant rod.
Cavity body filter the most according to claim 1, it is characterised in that described cavity body filter is duplexer, combiner or tower amplifier.
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| CN201110460827.7A CN103762402B (en) | 2011-12-31 | 2011-12-31 | A kind of cavity body filter |
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| CN201110460827.7A CN103762402B (en) | 2011-12-31 | 2011-12-31 | A kind of cavity body filter |
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| JP6676171B2 (en) * | 2015-12-24 | 2020-04-08 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Filters and wireless network devices |
| WO2020061915A1 (en) * | 2018-09-27 | 2020-04-02 | Nokia Shanghai Bell Co., Ltd. | A diplexer |
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| CN101267219A (en) * | 2007-03-12 | 2008-09-17 | 京信通信系统（中国）有限公司 | Ultra-broadband dual-frequency channel merger |
| KR20080114104A (en) * | 2007-06-26 | 2008-12-31 | 주식회사 케이엠더블유 | Filter combiner / divider |
| CN201749920U (en) * | 2010-05-14 | 2011-02-16 | 深圳市华思科技有限公司 | GSM & DCS/TDA/TDB ternary-band combiner |
| CN202454695U (en) * | 2011-12-31 | 2012-09-26 | 深圳市大富科技股份有限公司 | Cavity filter |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101267219A (en) * | 2007-03-12 | 2008-09-17 | 京信通信系统（中国）有限公司 | Ultra-broadband dual-frequency channel merger |
| KR20080114104A (en) * | 2007-06-26 | 2008-12-31 | 주식회사 케이엠더블유 | Filter combiner / divider |
| CN201749920U (en) * | 2010-05-14 | 2011-02-16 | 深圳市华思科技有限公司 | GSM & DCS/TDA/TDB ternary-band combiner |
| CN202454695U (en) * | 2011-12-31 | 2012-09-26 | 深圳市大富科技股份有限公司 | Cavity filter |
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Effective date of registration: 20180727 Address after: 233400 Huaiyuan County Economic Development Zone, Bengbu, Anhui Patentee after: Anhui Dafu Electromechanical Technology Co., Ltd. Address before: 518104 Floors 101, 2 and A4 of A1, A2, A3 of Shajing Street, Shajing Street, Shajing Road, Shajing Industry Co., Ltd. No. 3 Industrial Zone, Shenzhen City, Guangdong Province Patentee before: Shenzhen Tat Fook Technology Co., Ltd. |
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