CN208256875U - Signal filter and signal sending and receiving equipment - Google Patents
Signal filter and signal sending and receiving equipment Download PDFInfo
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- CN208256875U CN208256875U CN201820885786.3U CN201820885786U CN208256875U CN 208256875 U CN208256875 U CN 208256875U CN 201820885786 U CN201820885786 U CN 201820885786U CN 208256875 U CN208256875 U CN 208256875U
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Abstract
The application proposes a kind of signal filter and signal sending and receiving equipment, wherein signal filter includes: cavity, and the cavity includes an at least through slot；Connector is used for transmission signal；Filter element, one end of the filter element are connect with the connector；Wherein, the part and the filter element that the connector is connect with the filter element are all set in the through slot.It is in contrast to the prior art, the application proposes a kind of signal filter and signal sending and receiving equipment, the part and filter element that connector is connect with filter element are arranged in the through slot of cavity, reduce the occupied space of filter element, the application is capable of the volume of contracting small signal filtering device, increases the space utilization rate of signal filter.
Description
Technical field
This application involves the communications fields, more particularly to a kind of signal filter and signal sending and receiving equipment.
Background technique
In recent years, with the increase of consumer demand and the high speed development of modern wireless communication systems, the frequency of radio
Spectrum resource also becomes to be becoming tight day.The Radio Spectrum Resource that increasingly sophisticated communication environment and day is becoming tight, so that radio
Requirement of the communications field to signal filter is higher and higher.Now, requirement of the user to signal filter is: as far as possible
In the case where contracting small signal filtering device volume, signal filter, which is still able to satisfy outside lower in-band insertion loss, more high band, to be pressed down
The requirement such as system, more high power capacity, smaller volume, more inexpensive.
And in the prior art, in order to make signal filter have higher performance, the method being usually taken is: will believe
The filter element and connector of number filter are separated, are connected between connector and filter element by tap piece.Because of filter
Resonant cavity where wave element needs biggish volume to be just able to satisfy outside lower in-band insertion loss, more high band required for user
The requirement such as inhibition, more high power capacity.This just brings a problem: signal filter occupied space increases, and cannot achieve more
The purpose of small size.If wanting to meet above-mentioned requirements, need using the better device of price higher performance, this will increase cost, obtain
Mistake is not repaid.It needs to consider under the premise of not increasing cost and meeting user demand, the volume of contracting small signal filtering device increases
The space utilization rate of signal filter.
Utility model content
The application can reduce mainly solving the technical problems that provide a kind of signal filter and signal sending and receiving equipment
The volume of signal filter increases the space utilization rate of signal filter.
In order to solve the technical problem, the application proposes a kind of signal filter, which includes: cavity, institute
Stating cavity includes an at least through slot；Connector is used for transmission signal；Filter element, one end of the filter element and the company
Connect device connection；Wherein, the part and the filter element that the connector is connect with the filter element are all set in described
In through slot.
In order to solve the above technical problems, the application also provides a kind of signal sending and receiving equipment, which includes letter
Number filter, antenna, the antenna are connect with the input/output terminal of the signal filter；The signal filter
Including signal filter as described above.
The beneficial effect of the application is: being in contrast to the prior art, the application proposes a kind of signal filter, will
The part and filter element that connector is connect with filter element are arranged in the through slot of cavity, reduce the occupancy of filter element
Space, the application can save cost, improve the space utilization rate of signal filter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the application signal filter；
Fig. 2 is one embodiment concrete structure schematic diagram of Fig. 1 signal filter；
Fig. 3 is the structural schematic diagram of one embodiment of the application signal sending and receiving equipment.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment belongs to the range of the application protection.
For signal filter, the space of the resonant cavity where filter element is bigger, the performance of signal filter
It is better, therefore function required for user more easy to accomplish.In the prior art, often filter element is separately put with connector
It sets, because of the volumetric constraint of signal filter, the resonant cavity diameter where filter element cannot accomplish maximum, and then influence signal
The performance of filter.The part and filter element that connector is connect by the application with filter element are placed in resonant cavity,
Can effective promotion signal filter space utilization rate, the diameter of resonant cavity can be allowed to further increase, further increase letter
The performance of number filter.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of one embodiment of the application signal filter.In conjunction with Fig. 1 to the application
Signal filter be described.
In the present embodiment, signal filter includes connector 101, filter element 102 and cavity 103.
Wherein, connector 101 is used for transmission signal.The signal that filter element 102 is used to transmit connector 101 is filtered
One end of wave, filter element 102 is connect with connector 101.Cavity 103 is equipped at least one through slot (not indicating).Connector
101 parts connecting with filter element 102 and filter element 102 are arranged in the through slot.Signal filter further includes
Cover board (not shown), cover board cover cavity 103 and form resonant cavity, and the position for being correspondingly connected with device 101 on the cover board is provided at least
One through-hole, connector 101 partially pass through through-hole setting.In one embodiment, lid of the through slot perpendicular to capping cavity 103
Plate setting.
Referring to Fig. 2, Fig. 2 is one embodiment concrete structure schematic diagram of Fig. 1 signal filter, in conjunction with Fig. 1 and Fig. 2 to this
The signal filter of application is described in detail.
In the present embodiment, signal filter includes connector 101, filter element 102, cavity 103, the first support base
105, the second support base 106 and tap piece 107.
Connector 101 includes main part 1011 and interconnecting piece 1012.Main part 1011 is connect with interconnecting piece 1012, can be
Integral structure.Connector 101 is for transmitting a signal to filter element 102 or being transferred to the signal that filter element 102 transmits
Other devices being connect with connector 101.
In this example, the radial section diameter of main part 1011 is greater than the radial section diameter of interconnecting piece 1012.At it
In his embodiment, the radial section diameter of the interconnecting piece 1012 of connector also greater than or equal to the radial direction of main part 1011 is cut
Face diameter.Connector 101 can also be conducting wire, coil, circuit board or other signal transmitting apparatus, as long as connector 101 can be used for
Signal is transmitted, it is not limited here.
One end of filter element 102 is connect with the interconnecting piece 1012 on connector 101 far from one end of main part 1011.Filter
Wave element 102 obtains the signal of the transmission of connector 101 by interconnecting piece 1012 or the signal after filtering processing is transferred to connection
Device 101.
In the present embodiment, filter element 102 is directly electrically connected with interconnecting piece 1012 to transmit signal, in other embodiments
In, filter element 102 can connect or be of coupled connections to transmit signal, it is not limited here by conducting wire with interconnecting piece 1012.
Through slot 104 is formed on cavity 103.The part and filter element that connector 101 is connect with filter element 102
102 are located in through slot 104, and connector 101 is at least partly coaxially disposed with filter element 102.
In the present embodiment, the interconnecting piece 1012 of connector 101 and filter element 102 are located in through slot 104, and connector
Main part 1011 and interconnecting piece 1012 in 101 are coaxially disposed with filter element 102.In other embodiments, connector 101
It can also be entirely located in through slot 104, connector 101 is not coaxially disposed with filter element 102, only needs connector 101 that can transmit
Signal is not limited thereto.
In the present embodiment, through slot 104 is cylindrical through slot, through slot 104 close to connector 101 main part 1011 one
Diameter is held to be greater than the diameter for accommodating one end of filter element 102.
In other embodiments, through slot 104 can be other kinds of for prismatic through slot, infundibulate through slot, trapezoidal through slot etc.
Through slot, the radial section of through slot 104 can also be rectangular, pentagon, hexagon or irregular shape, the global shape of through slot 104
It can be also sphere, cone, hexahedron, octahedron and other rules or irregular contour, as long as through slot 104 can accommodate filtering
The part that element 102 and connector 101 are connect with filter element 102, and the signal filter can be improved in through slot 104
Filtering performance is not limited thereto.
Radial section diameter because of through slot 104 close to one end of connector 101 is greater than the main part 1011 of connector 101
Radial section diameter for fixed connection device 101 and prevents connector 101 from falling into cylindrical through slot, the signal filter of the present embodiment
Wave apparatus further includes the first support base 105 and the second support base 106.
The part that connector 101 is connect with filter element 102 is set in the first support base 105.In the present embodiment,
One support base 105 accommodates interconnecting piece 1012 and at least partly main part 1011.For fixed connection device 101, the first support base 105
It is bonded with the outer wall of connector 101, therefore, the radial section diameter that the first support base 105 accommodates the part of interconnecting piece 1012 is small
In the radial section diameter for accommodating at least partly part of main part 1011.The portion of first support base 105 receiving interconnecting piece 1012
Divide and accommodate formation first boss (not indicating) between at least partly part of main part 1011, wherein under the first boss
Surface is parallel with the upper surface of cavity 103, and the part that the first support base 105 accommodates interconnecting piece 1012 is located in through slot 104.Same
On one horizontal plane, the radial section diameter that the first support base 105 accommodates at least partly part of main part 1011 is less than or equal to
Radial section diameter of the through slot 104 close to 105 one end of the first support base.
In other embodiments, the first support base 105 can all accommodate connector 101 or only accommodate interconnecting piece 1012,
The shape of first support base 105 can also be changed according to the shape of connector 101, be not limited thereto.
Second support base 106 is located at the lower section of the first support base 105, and the second support base 106 accommodate filter element 102 and
The part of first support base 105 receiving interconnecting piece 1012.In the present embodiment, the second support base 106 is also used to support first
Seat 105 is supportted, the top of the second support base 106 contradicts the first boss of the first support base 105, and the second support base 106 accommodates first
The radial section diameter that support base 105 accommodates the part of interconnecting piece 1012 is greater than the radial direction section for accommodating the part of filter element 102
Face diameter, accommodates the part of filter element 102 and accommodates the first support base 105 and accommodate and form the between the part of interconnecting piece 1012
Two boss (do not indicate), and the inner wall of through slot 104 is formed with boss, and the boss is corresponding with second boss, the lower surface of second boss
On the boss.On the same horizontal plane, the second support base 106 accommodates the first support base 105 and accommodates interconnecting piece 1012
Partial radial section diameter is less than or equal to through slot 104 close to the radial section diameter of one end of the second support base 106.
In the present embodiment, the first support base 105, the second support base 106 and filter element 102 are coaxially disposed, at it
In his embodiment, the first support base 105, the second support base 106 and filter element 102 can not also be coaxially disposed, the first support
Seat 105 and the axial direction of the second support base 106 can be changed according to the structure and shape of the through slot 104 where filter element 102,
It only needs the second support base 106 and the first support base 105 that can be used to support connector 101, and accommodates filter element 102,
This will not be repeated here.
In other embodiments, the first support base 105 and the second support base 106 can be combined into a support base, the support base
A part of filter element 102, interconnecting piece 1012 and main part 1011 is accommodated, and the inner wall of the support base and through slot 104 pastes
It closes, is equipped with groove or boss to support the support base in the inner wall of through slot 104.Also can be omitted support base, in cavity 103 or
It is arranged on through slot 104 and connector is inconsistent or the other structures such as the groove, boss or the screw thread that agree with are to support and the company of fixation
Connect device 101 and filter element 102.
In the above-described embodiments, the side that filter element 102 is contacted with the second support base 106 is additionally provided with encirclement filter element
102 ring structure (not indicating), the internal diameter of the ring structure and the maximum outside diameter of filter element are identical or close, therefore, ring
On the inside of shape structure at the largest outside diameter at 102 both ends of filter element, filter element 102 and ring structure form enclosed construction,
Signal transmission or signal filtering operation are carried out to enable filter element 102 to stablize.
Tap piece 107 is connected to the one end of filter element 102 far from connector 101, and tap piece 107 and filter element
102 signal receiving end or the signal output end connections far from connector 101.107 through cavities 103 of tap piece, with filter element
One end of 102 connections is located in through slot 104, and the other end far from filter element 102 is located at one of cavity 103 far from through slot 104
Side.In the present embodiment, tap piece 107 is for transmitting a signal to filter element 102 or by the filtered letter of filter element 102
Other devices number are transferred to, tap piece 107 other can transmit the dress of signal for signal wire, sheet metal, coil, circuit board etc.
It sets, in other embodiments, tap piece 107 also may be disposed at filter element 102 close to one end of connector 101, as long as tap
Piece 107 and connector 101 are respectively the signal input/output terminal of filter element 102, for tap piece 107 relative to even
The specific location for connecing device 101 is not construed as limiting.
In the above-described embodiments, filter element 102 can be low-pass filtering element, high-pass filtering element, bandpass filtering element
Or other kinds of filter element, only need the filter element to be able to achieve signal filtering, this will not be repeated here.
In the above-described embodiments, the signal filter is cavity body filter, either simplex device, duplexer, splitter, combining
One of device and tower amplifier, this will not be repeated here.
The beneficial effect of the application is: being in contrast to the prior art, the application proposes a kind of signal filter, will
The part and filter element that connector is connect with filter element are arranged in the through slot of cavity, reduce the occupancy of filter element
Space, the application can save cost, improve the space utilization rate of signal filter.
Based on same inventive concept, the application also proposed a kind of signal sending and receiving equipment.
Referring to Fig. 3, Fig. 3 is the structural schematic diagram of one embodiment of the application signal sending and receiving equipment, the signal sending and receiving equipment
20 include signal filter 22, antenna 21, wherein input terminal/output end (not indicating) of antenna 21 and signal filter 22
Connection, antenna 21 are used to send received signal input signal filter 22 or the signal for exporting signal filter 22
It goes out.
Wherein, signal sending and receiving equipment 20 can be the signal sending and receiving equipments such as base station, wireless transmission tower, and the equipment is only needed to have letter
Number filter and antenna not limit herein.
The structure of signal filter 22 is same as the previously described embodiments, and it is not described here in detail.
The beneficial effect of the application is: being in contrast to the prior art, the application proposes a kind of signal sending and receiving equipment.It will
The part and filter element that connector is connect with filter element are arranged in the through slot of cavity, reduce the occupancy of filter element
Space, the application can save cost, improve the space utilization rate of signal sending and receiving equipment.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of signal filter, which is characterized in that the signal filter includes:
Cavity, the cavity include an at least through slot；
Connector is used for transmission signal；
Filter element, one end of the filter element are connect with the connector；
Wherein, the part and the filter element that the connector is connect with the filter element are all set in the through slot
In.
2. signal filter according to claim 1, which is characterized in that the signal filter further include:
Cover board, the cover board cover the cavity and form resonant cavity, and the cover board includes an at least through-hole, the cover board perpendicular to
The through slot；
The connector is arranged across the through-hole.
3. signal filter according to claim 2, which is characterized in that at least partly described connector and the filtering
Element is coaxial arrangement.
4. signal filter according to claim 3, which is characterized in that the signal filter further comprises
One support base and the second support base, the part that the connector is connect with the filter element are set to first support base
In, second support base is arranged around the filter element, and supports first support base, and second support base is located at
In the through slot, and second support base is bonded with the inner wall of the through slot.
5. signal filter according to claim 4, which is characterized in that the connector includes interconnecting piece and main body
Portion, the interconnecting piece connect the filter element, and the main part is set to one of the interconnecting piece far from the filter element
Side, the main part, the interconnecting piece and filter element coaxial arrangement, and the radial section of the main part is straight
Diameter is greater than the diameter of the radial section of the interconnecting piece；
First support base accommodates the interconnecting piece and at least partly described main part, described in first support base accommodates
The diameter of the radial section of the part of interconnecting piece is less than the radial section for accommodating the part of at least partly described main part
Diameter accommodates and is formed with first boss between the part of the interconnecting piece and the receiving at least partly part of main part；
Second support base accommodates the filter element, and first support base accommodates the part of the interconnecting piece and is located at institute
It states in the second support base, the diameter that first support base is located at the radial section of the part in second support base, which is greater than, to be held
Receive the filter element part radial section diameter, second support base accommodates part and the appearance of the filter element
Receive first support base part between be formed with second boss, the top of second support base contradicts first support
The first boss of seat.
6. signal filter according to claim 5, which is characterized in that first support base, second support
Seat and filter element coaxial arrangement.
7. signal filter according to claim 1, which is characterized in that the signal filter further comprises taking out
Head piece, the tap piece are connected to the one end of the filter element far from the connector.
8. signal filter according to claim 1, which is characterized in that the filter element be low-pass filtering element,
High-pass filtering element or bandpass filtering element.
9. signal filter according to claim 1-8, which is characterized in that the signal filter is chamber
One of fluid filter, either simplex device, duplexer, splitter, combiner and tower amplifier.
10. a kind of signal sending and receiving equipment, which is characterized in that the signal sending and receiving equipment includes signal filter, antenna, described
Antenna is connect with input terminal/output end of the signal filter；
The signal filter includes the described in any item signal filters of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820885786.3U CN208256875U (en) | 2018-06-06 | 2018-06-06 | Signal filter and signal sending and receiving equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820885786.3U CN208256875U (en) | 2018-06-06 | 2018-06-06 | Signal filter and signal sending and receiving equipment |
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| Publication Number | Publication Date |
|---|---|
| CN208256875U true CN208256875U (en) | 2018-12-18 |
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| CN201820885786.3U Active CN208256875U (en) | 2018-06-06 | 2018-06-06 | Signal filter and signal sending and receiving equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770969A (en) * | 2018-06-06 | 2020-02-07 | 深圳市大富科技股份有限公司 | Signal filtering device and signal transceiving equipment |
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2018
- 2018-06-06 CN CN201820885786.3U patent/CN208256875U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770969A (en) * | 2018-06-06 | 2020-02-07 | 深圳市大富科技股份有限公司 | Signal filtering device and signal transceiving equipment |
| CN110770969B (en) * | 2018-06-06 | 2021-12-03 | 大富科技(安徽)股份有限公司 | Signal filtering device and signal transceiving equipment |
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Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Dafu Technology (Anhui) Co., Ltd Address before: 518104, Guangdong, Shenzhen province Baoan District manhole street, oyster Road, manhole Industrial Company Third Industrial Zone, A1, A2, A3 101, A4 first, second, third layers Patentee before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. |