CN208753479U - Improve the ceramic dielectric filter and duplexer of Out-of-band rejection - Google Patents
Improve the ceramic dielectric filter and duplexer of Out-of-band rejection Download PDFInfo
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- CN208753479U CN208753479U CN201920164606.7U CN201920164606U CN208753479U CN 208753479 U CN208753479 U CN 208753479U CN 201920164606 U CN201920164606 U CN 201920164606U CN 208753479 U CN208753479 U CN 208753479U
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- medium block
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- local conductor
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- 239000000919 ceramic Substances 0.000 title claims abstract description 38
- 239000004020 conductor Substances 0.000 claims abstract description 247
- 239000002184 metal Substances 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims description 37
- 238000007639 printing Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
Abstract
The utility model discloses a kind of ceramic dielectric filter and duplexer for improving Out-of-band rejection, including medium block, row's through hole is offered on medium block, the medium block outer surface where through hole one end is equipped with the coat of metal and forms short-circuit face；Medium block outer surface where its other end forms open surface, correspond to each through hole on open surface and is equipped with circuit local conductor layer, set on open surface there are two terminal local conductor layer；It is formed on one of outer surface of outer conductor layer and is set there are two insulation division on medium block, terminal local conductor layer one or/and terminal local conductor layer two are arranged between adjacent two circuits local conductor layer；It is additionally provided with terminal on open surface and extends conductor layer.The ceramic dielectric filter and duplexer of the utility model can be improved the Out-of-band rejection effect of ceramic dielectric filter and duplexer, meet filter and duplexer and inhibit to require outside the higher band of specific frequency point.
Description
Technical field
The ceramic dielectric duplexer that the utility model relates to use in the equipment such as wireless mobile communication base station, repeater,
More particularly to it is related to a kind of ceramic dielectric filter and duplexer that can improve Out-of-band rejection.
Background technique
It is more next to the performance requirement of the equipment such as communication base station, repeater with the fast development of wireless mobile telecommunication technology
It is higher, wherein filter and duplexer should have good passband (including passband fluctuation, band as frequency-selecting device in bandwidth
Internal loss etc.), there should be good rejection ability (Out-of-band rejection) outside bandwidth.
As shown in Fig. 1~2, in currently available technology, Contiuum type ceramic dielectric filter and duplexer have by ceramics
The molding integral type medium block of material, equidirectional on the medium block to offer multiple through holes, each through hole constitutes one
Resonant cavity.By silver-plated formation outer conductor layer on the smooth outer surface in four, the upper and lower, left and right of the medium block, passed through each
Pass through silver-plated formation inner conductor layer on the inner surface of through-hole.The short-circuit face of silver-plated formation, short in the back end outer surface of the medium block
Road surface is electrically connected the inner conductor layer in through hole with the outer conductor layer on medium block, and the leading exterior surface of medium block is as opening
Face corresponds to each through hole on the open surface equipped with circuit local conductor layer.For filter, in the open surface of medium block
On set there are two terminal local conductor layer, two terminal local conductor layers are respectively close to two through holes for being located at edges at two ends
The setting of circuit local conductor layer, separates on the lower surface of the medium by the insulating regions of two strip structures that form signal defeated
Enter terminal and signal output terminal, the signal input terminal and signal output terminal respectively with two terminal parts on open surface
Conductor layer is conductively connected.For duplexer, set on the open surface of medium block there are three terminal local conductor layer, wherein one
A terminal local conductor layer is arranged close to the circuit local conductor layer of centrally located through hole, other two terminal is locally led
Body layer is arranged respectively close to the circuit local conductor layer for two through holes for being located at edges at two ends；Lead on the lower surface of the medium
The insulating regions for crossing three strip structures separate to form transmitting terminal, antenna terminal and receiving terminal, the antenna terminal, transmitting terminal
Son and receiving terminal are respectively with terminal local conductor layer centrally located on open surface, positioned at two terminal parts at both ends
Conductor layer is conductively connected；Wherein antenna terminal is for connecting antenna, and for connecting transmit circuit, receiving terminal is used for transmitting terminal
Connection receives circuit.
However for above-mentioned Contiuum type ceramic dielectric filter and duplexer, when having higher requirements for Out-of-band rejection not
It readily satisfies.In the past in order to improve Out-of-band rejection performance, it usually needs install metallic shield additional locally on the outside of medium block to change
Kind Out-of-band rejection performance, in some particular/special requirements, even if using this external shielding measure, the Out-of-band rejection of specific frequency point changes
Kind effect is still undesirable.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of ceramic dielectric filter and duplexers, can be improved
The Out-of-band rejection effect of ceramic dielectric filter and duplexer meets filter and duplexer outside the higher band of specific frequency point
Inhibit to require.
In order to solve the above-mentioned technical problem, the utility model provides a kind of ceramic dielectric filtering for improving Out-of-band rejection
Device offers row's through hole, the row perforation including the integral type medium block by ceramic forming material on the medium block
The axis in hole is parallel, arranged side by side；The inner surface of each through hole is equipped with the coat of metal and forms inner conductor layer, passes through being parallel to
The medium block outer surface of through-bore axis is equipped with the coat of metal and forms outer conductor layer；The through hole wherein medium block where one end
Outer surface is equipped with the coat of metal and forms short-circuit face, and the inner conductor layer and outer conductor layer pass through short-circuit face and be conductively connected；It is described to pass through
Medium block outer surface where the through-hole other end forms open surface, corresponds to each through hole on the open surface and is equipped with circuit office
Portion's conductor layer, the circuit local conductor layer and inner conductor layer are conductively connected；Two terminal parts are additionally provided on the open surface
Conductor layer, respectively terminal local conductor layer one and terminal local conductor layer two；Its of outer conductor layer is formed on the medium block
In set on an outer surface there are two insulation division, described two insulation divisions separate the outer conductor layer of outer surface where it to form letter
Number input terminal and signal output terminal, the signal input terminal and signal output terminal respectively with terminal local conductor layer one
It is conductively connected with terminal local conductor layer two, the terminal local conductor layer one or/and terminal local conductor layer two are arranged in phase
Between adjacent two circuit local conductor layers；Be additionally provided with terminal on the open surface and extend conductor layer, the terminal extend conductor layer with
Terminal local conductor layer one or/and terminal local conductor layer two are conductively connected.
It further comprise the cuboid knot that the medium block is accumbency placement in one preferred embodiment of the utility model
Structure, the row through hole horizontal cross are arranged on the medium block of rectangular parallelepiped structure.
It further comprise the circuit local conductor layer for based on printing technology in one preferred embodiment of the utility model
Or the metal conductor layer that laser technology is formed；The terminal local conductor layer one and terminal local conductor layer two are based on print
The metal conductor layer that dataller's skill or laser technology are formed；It is based on printing technology or laser work that the terminal, which extends conductor layer,
The metal conductor layer that skill is formed.
In order to solve the above-mentioned technical problem, it is double to additionally provide a kind of ceramic dielectric for improving Out-of-band rejection for the utility model
Work device offers row's through hole including the integral type medium block by ceramic forming material on the medium block, a row is passed through
The axis of through-hole is parallel, arranged side by side；The inner surface of each through hole is equipped with the coat of metal and forms inner conductor layer, is being parallel to
The medium block outer surface for penetrating through axially bored line is equipped with the coat of metal and forms outer conductor layer；The through hole wherein medium where one end
Block outer surface is equipped with the coat of metal and forms short-circuit face, and the inner conductor layer and outer conductor layer pass through short-circuit face and be conductively connected；It is described
Medium block outer surface where the through hole other end forms open surface, corresponds to each through hole on the open surface and is equipped with circuit
Local conductor layer, the circuit local conductor layer and inner conductor layer are conductively connected；Three terminal offices are additionally provided on the open surface
Portion's conductor layer；Respectively terminal local conductor layer one, terminal local conductor layer two and terminal local conductor layer three, the medium block
It sets on the upper one of outer surface for forming outer conductor layer there are three insulation division, three insulation divisions are by outer surface where it
Outer conductor layer is separated to form transmitting terminal, receiving terminal and antenna terminal, the transmitting terminal, receiving terminal and antenna terminal point
It is not conductively connected with terminal local conductor layer one, terminal local conductor layer two and terminal local conductor layer three, the terminal part
Conductor layer one or/and terminal local conductor layer two are arranged between adjacent two circuits local conductor layer；It is also set on the open surface
There is terminal to extend conductor layer, the terminal extends conductor layer leads with terminal local conductor layer one or/and terminal local conductor layer two
Electrical connection.
It further comprise the cuboid knot that the medium block is accumbency placement in one preferred embodiment of the utility model
Structure, the row through hole horizontal cross are arranged on the medium block of rectangular parallelepiped structure.
It further comprise the circuit local conductor layer for based on printing technology in one preferred embodiment of the utility model
Or the metal conductor layer that laser technology is formed；The terminal local conductor layer one, terminal local conductor layer two and terminal part
Conductor layer three is the metal conductor layer formed based on printing technology or laser technology；The terminal extend conductor layer be based on
The metal conductor layer that printing technology or laser technology are formed.
The utility model has the beneficial effects that the ceramic dielectric filter and duplexer of the utility model, can be improved pottery
The Out-of-band rejection effect of porcelain dielectric filter and duplexer meets filter and duplexer and presses down outside the higher band of specific frequency point
System requires.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of ceramic dielectric filter in the prior art；
Fig. 2 is the structural schematic diagram of medium block outer surface where ceramic dielectric filter insulation division shown in Fig. 1；
Fig. 3 is the amplitude-frequency characteristic figure of ceramic dielectric filter shown in Fig. 1；
Fig. 4 is the structural schematic diagram of ceramic dielectric filter in the preferred embodiment in the utility model；
Fig. 5 is the structural schematic diagram of medium block outer surface where ceramic dielectric filter insulation division shown in Fig. 4；
Fig. 6 is the amplitude-frequency characteristic figure of ceramic dielectric filter shown in Fig. 4；
Fig. 7 is the structural schematic diagram at the first visual angle of ceramic dielectric duplexer in the preferred embodiment in the utility model；
Fig. 8 is the structural schematic diagram at the second visual angle of ceramic dielectric duplexer in the preferred embodiment in the utility model.
Figure label explanation: figure label explanation: 2- medium block, 4- through hole, 6- inner conductor layer, 8- outer conductor layer, 10-
Short-circuit face, 12- open surface, 14- circuit local conductor layer, 15- terminal local conductor layer one, 16- terminal local conductor layer two,
17- terminal local conductor layer three, 18- insulation division, 20- signal input terminal, 22- signal output terminal, 24- terminal extend conductor
Portion, 26- emit terminal, 28- antenna terminal, 30- receiving terminal.
In addition, abscissa is frequency (MHz) in the amplitude-versus-frequency curve of Fig. 2 and Fig. 6, ordinate is decaying (dB).
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
Embodiment one
Referring to shown in Fig. 4~5, the present embodiment discloses a kind of ceramic dielectric filter for improving Out-of-band rejection, including by
The integral type medium block 2 of ceramic forming material, medium block 2 are the rectangular parallelepiped structure that accumbency is placed, the medium of the rectangular parallelepiped structure
Row's through hole 4 is offered on block 2,4 horizontal cross of row's through hole is arranged on the medium block 2 of rectangular parallelepiped structure, and above-mentioned one
The axis for arranging through hole is parallel, arranged side by side；The inner surface of each above-mentioned through hole 4 is equipped with the coat of metal and forms inner conductor layer 6,
The medium block outer surface for being parallel to 4 axis of through hole is equipped with the coat of metal and forms outer conductor layer 8；Above-mentioned through hole 4 wherein one end
The medium block outer surface at place is equipped with the coat of metal and forms short-circuit face 10, and above-mentioned inner conductor layer 6 and outer conductor layer 8 pass through short-circuit face
10 are conductively connected；Medium block outer surface where above-mentioned 4 other end of through hole forms open surface 12, corresponds on above-mentioned open surface 12
Each through hole 4 is equipped with circuit local conductor layer 14, and foregoing circuit local conductor layer 14 and inner conductor layer 6 are conductively connected；On
It states and is additionally provided with two terminal local conductor layers, respectively terminal local conductor layer 1 and terminal local conductor layer on open surface 12
2 16；Set there are two insulation division 18, above-mentioned two insulation are formed on one of outer surface of outer conductor layer on above-mentioned medium block
Portion separates the outer conductor layer of outer surface where it to form signal input terminal 20 and signal output terminal 22, above-mentioned signal input
Terminal 20 and signal output terminal 22 are conductively connected with terminal local conductor layer 1 and terminal local conductor layer 2 16 respectively, on
It states terminal local conductor layer 1 or/and terminal local conductor layer 2 16 is arranged between adjacent two circuits local conductor layer 14；
It is additionally provided with terminal on above-mentioned open surface 12 and extends conductor layer 24, above-mentioned terminal extends conductor layer 24 and terminal local conductor layer 1
Or/and terminal local conductor layer 2 16 is conductively connected.
Related content in above-mentioned wave filter technology scheme is explained as follows:
(1) terminal local conductor layer 1, terminal local conductor layer 2 16 and terminal extend the setting side of conductor layer 24
Formula:
A: when terminal local conductor layer 1 is arranged between adjacent two circuits local conductor layer 14, the terminal part of part
Conductor layer 1 is arranged between two adjacent through holes 4 at edge, and the terminal local conductor layer 1 of part is close should
The circuit local conductor layer setting of two through holes 4 corresponding to one of them.
B: when terminal local conductor layer 2 16 is arranged between adjacent two circuits local conductor layer 14, the terminal part of part
Conductor layer 1 is arranged between two adjacent through holes 4 at edge, and the terminal local conductor layer 1 of part is close should
The circuit local conductor layer setting of two through holes 4 corresponding to one of them.
C: terminal local conductor layer 1 and terminal local conductor layer 2 16 are arranged in adjacent two circuits local conductor layer 14
Between when, the terminal local conductor layer 1 of part is arranged between two adjacent through holes 4 at one of edge, portion
Circuit local conductor layer setting of the terminal local conductor layer 1 being divided to close to two through holes 4 corresponding to one of them；Portion
The terminal local conductor layer 1 being divided to is arranged between two adjacent through holes 4 at another edge, the terminal office of part
Circuit local conductor layer setting of the portion's conductor layer 1 close to two through holes 4 corresponding to one of them.
D: the setting of terminal local conductor layer 1 forms trap as shown in FIG. 6 between adjacent two circuits local conductor layer
Point A；Terminal local conductor layer 2 16, which is arranged, forms trap wave point C as shown in FIG. 6 in adjacent two circuits local conductor layer；Terminal office
Portion's conductor layer 1 and terminal extend the conductive connection of conductor layer 24 and form trap wave point B as shown in FIG. 6.Theoretical upper terminal extension is led
Body layer 24 is arranged more, and the trap wave point of generation is more, and the performance for improving Out-of-band rejection at specific frequency point is better.
Comparison diagram 3 and Fig. 6, the ceramic dielectric filter of the application, trap wave point A, B, C correspond to the Out-of-band rejection of frequency point
Can compared to the prior art in identical frequency point the larger promotion of Out-of-band rejection performance.Simultaneously filter be located at BD sections, EC sections it is right
The Out-of-band rejection performance in frequency band is answered also to have a distinct increment.
(2) between each circuit local conductor layer 14；Circuit local conductor layer 14 and terminal local conductor layer 1, terminal
Between local conductor layer 2 16；Between circuit local conductor layer 14 and outer conductor layer 8 and terminal local conductor layer 1, end
All there is clearance for insulation between sub- local conductor layer 2 16 and outer conductor layer 8.
(3) foregoing circuit local conductor layer 14 is the metal conductor layer formed based on printing technology or laser technology；On
It states terminal local conductor layer 1 and terminal local conductor layer 2 16 is the gold formed based on printing technology or laser technology
Belong to conductor layer；It is the metal conductor layer formed based on printing technology or laser technology that above-mentioned terminal, which extends conductor layer 24,.
(4) the above-mentioned coat of metal silver-plated, gold-plated, copper facing or can aluminize, wherein and silver-plated and copper facing is easier to implement, and
And the performance of manufactured filter is more preferable.
Embodiment two
Referring to shown in Fig. 7, the present embodiment discloses a kind of ceramic dielectric duplexer for improving Out-of-band rejection, including by ceramics
The molding integral type medium block 2 of material, above-mentioned medium block 2 are the rectangular parallelepiped structure that accumbency is placed, the medium of the rectangular parallelepiped structure
Row's through hole 4 is offered on block 2,4 horizontal cross of row's through hole is arranged on the medium block 2 of rectangular parallelepiped structure, and above-mentioned one
The axis for arranging through hole is parallel, arranged side by side；The inner surface of each above-mentioned through hole 4 is equipped with the coat of metal and forms inner conductor layer 6,
The medium block outer surface for being parallel to 4 axis of through hole is equipped with the coat of metal and forms outer conductor layer 8；Above-mentioned through hole 4 wherein one end
The medium block outer surface at place is equipped with the coat of metal and forms short-circuit face 10, and above-mentioned inner conductor layer 6 and outer conductor layer 8 pass through short-circuit face
10 are conductively connected；Medium block outer surface where above-mentioned 4 other end of through hole forms open surface 12, corresponds on above-mentioned open surface 12
Each through hole 4 is equipped with circuit local conductor layer 14, and foregoing circuit local conductor layer 14 and inner conductor layer 6 are conductively connected；On
It states and is additionally provided with three terminal local conductor layers on open surface 12；Respectively terminal local conductor layer 1, terminal local conductor layer
2 16 and terminal local conductor layer 3 17, it is formed on above-mentioned medium block 2 on one of outer surface of outer conductor layer there are three setting
Insulation division 18, above three insulation division separate the outer conductor layer of outer surface where it to form transmitting terminal 26, receiving terminal 30
With antenna terminal 28, above-mentioned transmitting terminal 26, receiving terminal 30 and antenna terminal 28 respectively with terminal local conductor layer 1, end
Sub- local conductor layer 2 16 and terminal local conductor layer 3 17 are conductively connected, above-mentioned terminal local conductor layer 1 or/and terminal
Local conductor layer 2 16 is arranged between adjacent two circuits local conductor layer 14；Terminal extension is additionally provided on above-mentioned open surface 12 to lead
Body layer 24, above-mentioned terminal extends conductor layer 24 and terminal local conductor layer 1 or/and terminal local conductor layer 2 16 is conductive even
It connects.
Related content in above-mentioned duplexer technical solution is explained as follows:
(1) between each circuit local conductor layer 14, between circuit local conductor layer 14 and terminal local conductor layer 16, electricity
All have between insulating between road bureau's portion's conductor layer 14 and outer conductor layer 8 and between terminal local conductor layer 16 and outer conductor layer 8
Gap.
(2) foregoing circuit local conductor layer 14 is the metal conductor layer formed based on printing technology or laser technology；On
State terminal local conductor layer 1, terminal local conductor layer 2 16 and terminal local conductor layer 3 17 be based on printing technology or
The metal conductor layer that person's laser technology is formed；It is to be formed based on printing technology or laser technology that above-mentioned terminal, which extends conductor layer 24,
Metal conductor layer.
(3) the above-mentioned coat of metal silver-plated, gold-plated, copper facing or can aluminize, wherein and silver-plated and copper facing is easier to implement, and
And the performance of manufactured filter is more preferable.
(4) there are three terminals for above-mentioned duplexer tool, that is, emit terminal 26, receiving terminal 30 and antenna terminal 28, wherein day
Line terminals 28 receive circuit for connecting for connecting transmitting line, receiving terminal 30 for connecting antenna, transmitting terminal 26,
Transmitting end filter is constituted between antenna terminal 28 and transmitting terminal 26, ditch connects between antenna terminal 28 and receiving terminal 30
Receiving end filter.
(5) the transmitting end filter of above-mentioned duplexer and filter of the performance with embodiment one kind for receiving end filter,
The improvement of its Out-of-band rejection performance is with the description in embodiment one, and details are not described herein again.
Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model
Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model
It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.
Claims (6)
1. a kind of ceramic dielectric filter for improving Out-of-band rejection, including the integral type medium block by ceramic forming material, institute
It gives an account of and offers row's through hole in mass, the axis of the row through hole is parallel, arranged side by side；The interior table of each through hole
Face is equipped with the coat of metal and forms inner conductor layer, is formed in the medium block outer surface for being parallel to perforation axially bored line equipped with the coat of metal
Outer conductor layer；Wherein the medium block outer surface where one end is equipped with the coat of metal and forms short-circuit face the through hole, it is described in lead
Body layer and outer conductor layer pass through short-circuit face and are conductively connected；Medium block outer surface where the through hole other end forms opening
Face corresponds to each through hole on the open surface and is equipped with circuit local conductor layer, the circuit local conductor layer and inner conductor
Layer is conductively connected；Two terminal local conductor layers, respectively terminal local conductor layer one and terminal are additionally provided on the open surface
Local conductor layer two；Insulation division there are two being set on one of outer surface of formation outer conductor layer on the medium block, described two
A insulation division separates the outer conductor layer of outer surface where it to form signal input terminal and signal output terminal, and the signal is defeated
Enter terminal and signal output terminal to be conductively connected with terminal local conductor layer one and terminal local conductor layer two respectively, feature exists
In: the terminal local conductor layer one or/and terminal local conductor layer two are arranged between adjacent two circuits local conductor layer；Institute
It states and is additionally provided with terminal extension conductor layer on open surface, the terminal extends conductor layer and terminal local conductor layer one or/and terminal
Local conductor layer two is conductively connected.
2. improving the ceramic dielectric filter of Out-of-band rejection as described in claim 1, it is characterised in that: the medium block is
The rectangular parallelepiped structure that accumbency is placed, the row through hole horizontal cross are arranged on the medium block of rectangular parallelepiped structure.
3. improving the ceramic dielectric filter of Out-of-band rejection as described in claim 1, it is characterised in that: the circuit part
Conductor layer is the metal conductor layer formed based on printing technology or laser technology；The terminal local conductor layer one and terminal office
Portion's conductor layer two is the metal conductor layer formed based on printing technology or laser technology；It is base that the terminal, which extends conductor layer,
In the metal conductor layer that printing technology or laser technology are formed.
4. a kind of ceramic dielectric duplexer for improving Out-of-band rejection, including the integral type medium block by ceramic forming material, institute
It gives an account of and offers row's through hole in mass, the axis of the row through hole is parallel, arranged side by side；The interior table of each through hole
Face is equipped with the coat of metal and forms inner conductor layer, is formed in the medium block outer surface for being parallel to perforation axially bored line equipped with the coat of metal
Outer conductor layer；Wherein the medium block outer surface where one end is equipped with the coat of metal and forms short-circuit face the through hole, it is described in lead
Body layer and outer conductor layer pass through short-circuit face and are conductively connected；Medium block outer surface where the through hole other end forms opening
Face corresponds to each through hole on the open surface and is equipped with circuit local conductor layer, the circuit local conductor layer and inner conductor
Layer is conductively connected；Three terminal local conductor layers are additionally provided on the open surface；Respectively terminal local conductor layer one, terminal office
Portion's conductor layer two and terminal local conductor layer three, one of outer surface that outer conductor layer is formed on the medium block are equipped with three
A insulation division, three insulation divisions separate the outer conductor layer of outer surface where it to form transmitting terminal, receiving terminal and day
Line terminals, the transmitting terminal, receiving terminal and antenna terminal respectively with terminal local conductor layer one, terminal local conductor layer two
It is conductively connected with terminal local conductor layer three, it is characterised in that: the terminal local conductor layer one or/and terminal local conductor layer
Two are arranged between adjacent two circuits local conductor layer；It is additionally provided with terminal on the open surface and extends conductor layer, the terminal prolongs
It stretches conductor layer and terminal local conductor layer one or/and terminal local conductor layer two is conductively connected.
5. improving the ceramic dielectric duplexer of Out-of-band rejection as claimed in claim 4, it is characterised in that: the medium block is
The rectangular parallelepiped structure that accumbency is placed, the row through hole horizontal cross are arranged on the medium block of rectangular parallelepiped structure.
6. improving the ceramic dielectric duplexer of Out-of-band rejection as claimed in claim 4, it is characterised in that: the circuit part
Conductor layer is the metal conductor layer formed based on printing technology or laser technology；The terminal local conductor layer one, terminal office
Portion's conductor layer two and terminal local conductor layer three are the metal conductor layer formed based on printing technology or laser technology；It is described
It is the metal conductor layer formed based on printing technology or laser technology that terminal, which extends conductor layer,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920164606.7U CN208753479U (en) | 2019-01-30 | 2019-01-30 | Improve the ceramic dielectric filter and duplexer of Out-of-band rejection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920164606.7U CN208753479U (en) | 2019-01-30 | 2019-01-30 | Improve the ceramic dielectric filter and duplexer of Out-of-band rejection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208753479U true CN208753479U (en) | 2019-04-16 |
Family
ID=66086272
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920164606.7U Expired - Fee Related CN208753479U (en) | 2019-01-30 | 2019-01-30 | Improve the ceramic dielectric filter and duplexer of Out-of-band rejection |
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| Country | Link |
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| CN (1) | CN208753479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342182A (en) * | 2020-03-06 | 2020-06-26 | 厦门松元电子有限公司 | Structural mixed different-wavelength resonant ceramic filter |
| CN113036325A (en) * | 2021-01-26 | 2021-06-25 | 嘉兴佳利电子有限公司 | Novel dielectric filter |
-
2019
- 2019-01-30 CN CN201920164606.7U patent/CN208753479U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342182A (en) * | 2020-03-06 | 2020-06-26 | 厦门松元电子有限公司 | Structural mixed different-wavelength resonant ceramic filter |
| CN113036325A (en) * | 2021-01-26 | 2021-06-25 | 嘉兴佳利电子有限公司 | Novel dielectric filter |
| WO2022160432A1 (en) * | 2021-01-26 | 2022-08-04 | 嘉兴佳利电子有限公司 | Novel dielectric filter |
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