CN207251568U - A kind of multilayer non-planar coiling resonance filter - Google Patents
A kind of multilayer non-planar coiling resonance filter Download PDFInfo
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- CN207251568U CN207251568U CN201721134984.8U CN201721134984U CN207251568U CN 207251568 U CN207251568 U CN 207251568U CN 201721134984 U CN201721134984 U CN 201721134984U CN 207251568 U CN207251568 U CN 207251568U
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- electrode
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- parallel resonator
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Abstract
It the utility model is related to the broad band low frequency multilayer ceramic filter used in a kind of microwave communication system.A kind of multilayer non-planar coiling resonance filter includes external electrode, interior electrode, multiple flaky pottery dielectric layers stacked together；External electrode is made of the metal electrode of bonding and the metal end electrodes of input and output；Interior electrode is coated with each flaky pottery medium layer plane, interior electrode includes：2 layers of bonding layer electrode, 4 ground capacity pieces, 4 band helix parallel resonators, its respectively with it is vertical coupled under 4 ground capacity on pieces, formed 4 under capacitance, 1 layer capacitance coupling piece, the stiffness of coupling of adjustable two of which parallel resonator, and then adjust the double trap wave points adjusting inductor wires of its pass band width, 1 balance；By structure optimization of the interior electrode on different flaky pottery dielectric layers, the wave filter of different electrical properties can be designed in identical wave filter volume, and effectively improve the uniformity of technique, reliability.
Description
Technical field
It the utility model is related to the broad band low frequency multilayer ceramic filter used in a kind of microwave communication system.
Background technology
Existing multilayer ceramic filter uses planar design, certain electrical length strip line and load mostly in structure
Capacitance forms the resonator of wave filter, (application number CN201310335978.9；Publication number CN103401521A), each resonator
It is coupled in same plane, without through hole during processing, high performance filter can be produced after lamination sintering.But this structure
Multilayer ceramic filter has two defects, that is, relative bandwidth is relatively narrow (being less than 20% or so), and band connection frequency is less than 1.2GHz
Just it is difficult to realize below, and the front end for much minimizing power amplifier and low noise amplifier needs miniature, low frequency wideband filtered
Device.
The content of the invention
The problems such as to solve the narrow bandwidth of the multilayer ceramic filter of above-mentioned planar structure and difficult low frequency making, this practicality
New purpose is to propose a kind of multilayer non-planar coiling resonance filter, is adopted between the resonator which is distributed up and down
With vertical space electromagnetic coupled mode, so as to considerably increase its bandwidth, and resonator is using wire-wound inductor and lower ground capacitance
Mode, can make its resonant frequency is minimum to accomplish 100MHz or so.
In order to realize above-mentioned purpose, the utility model employs following technical solution：
A kind of multilayer non-planar coiling resonance filter, the wave filter include：
Layered product, is made of multilayer insulation dielectric layer, surface be provided with the first external input output electrode, second outside it is defeated
Enter output electrode, the first external ground electrode and the second external ground electrode；
First layer bonding electrode and second layer bonding electrode, first layer bonding electrode and second layer shielding
Grounding electrode is sequentially placed into the superiors and the orlop of the inside of the wave filter, respectively with outside the first external ground electrode and second
Portion's grounding electrode is connected；
First ground capacity piece, the second ground capacity piece, the 3rd ground capacity piece and the 4th ground capacity piece, 4 ground connection
Capacitance sheet is connected with the first external ground external electrode respectively；
First band helix parallel resonator, the second band helix parallel resonator, the 3rd band helix parallel resonator
With the 4th band helix parallel resonator, 4 band helix parallel resonators pass through the first wire-wound inductor, the second coiling electricity respectively
Sense, the 3rd wire-wound inductor and the 4th wire-wound inductor are connected with the second external ground electrode；4 with helix parallel resonator
One capacitance sheet part, the second capacitance sheet part, the 3rd capacitance sheet part and the 4th capacitance sheet part respectively with 4 ground capacity pieces
Lower ground capacitance is formed, respectively constitutes 4 inductance capacitance parallel resonators；4 band helix parallel resonators are in upper-lower position
The first inductance part, the second inductance part, the 3rd inductance part and the 4th inductance part up and down couple, formed perception level between
Electromagnetic coupled；3rd band helix parallel resonator and the 4th band helix parallel resonator respectively by lead-out wire and first outside
Portion's input and output electrode and the second external input output electrode are connected；
Capacitive coupling piece, capacitive coupling piece and first band helix parallel resonator, the second band helix parallel resonator
The first capacitance sheet part, the second capacitance sheet part up and down couple form capacitive coupling between level；
The double trap wave points of balance adjust inductor wire, balance double trap wave points and adjust inductor wire and the 3rd band helix parallel resonator
Formed with the 4th with the 5th inductance part of helix parallel resonator and the 6th inductance part inductive coupled；The double trap wave points of balance
The both ends for adjusting inductor wire are connected with the first external ground electrode and the second external ground electrode.
A kind of multilayer non-planar coiling resonance filter according to claim 1, it is characterised in that layered product by
Under it is supreme be respectively the first insulating medium layer, the second insulating medium layer, the 3rd insulating medium layer, the 4th insulating medium layer, the 5th
Insulating medium layer, the 6th insulating medium layer, the 7th insulating medium layer, the 8th insulating medium layer and the 9th insulating medium layer；First
Ground capacity piece and the second ground capacity piece are located at the 4th insulating medium layer, the 3rd ground capacity piece and the 4th ground capacity piece position
In the 5th insulating medium layer；First band helix parallel resonator, the second band helix parallel resonator are exhausted positioned at the 3rd respectively
The both sides of edge dielectric layer, the 3rd band helix parallel resonator and the 4th band helix parallel resonator are respectively positioned at the 6th insulation
The both sides of dielectric layer；Capacitive coupling piece is located at the second insulating medium layer, balances double trap wave points adjusting inductor wires and is located at four-line poem with seven characters to a line edge
Dielectric layer.
A kind of multilayer non-planar coiling resonance filter according to claim 1, it is characterised in that coated in exhausted
Each pattern on edge dielectric layer is that metallic conductor is formed by printing or evaporating coating.
Using vertical between the resonator that the utility model is distributed up and down as a result of above-mentioned technical solution, the wave filter
Straight spatial electromagnetic coupled modes, so as to considerably increase its bandwidth, and resonator is by the way of wire-wound inductor and lower ground capacitance,
It can make its resonant frequency is minimum to accomplish 100MHz or so.By structure optimization of the interior electrode on different flaky pottery dielectric layers,
The wave filter of different electrical properties can be designed in identical wave filter volume, and effectively improve the uniformity of technique, reliability.
Brief description of the drawings
Fig. 1 is the decomposition diagram of the multilayer ceramic filter of a preferred embodiment of the utility model internal structure.
Fig. 2 is the outer surface structure schematic diagram of the utility model multilayer ceramic filter.
Fig. 3 is the frequency characteristic curve diagram of multilayer ceramic filter shown in Fig. 1.
Fig. 4 is the equivalent electrical schematic diagram for the ceramic filter implemented according to the utility model.
Embodiment
Specific embodiment of the present utility model is made a detailed explanation below in conjunction with the accompanying drawings.
A kind of multilayer non-planar coiling resonance filter as shown in Figure 1 and Figure 2, the wave filter include：Layered product 205,
First bonding electrode 1011 and secondary shielding grounding electrode 1081, the first ground capacity piece 1041, the second ground capacity piece
1042nd, the 3rd ground capacity piece 1051 and the 4th ground capacity piece 1052, first band helix parallel resonator 1031＆1034,
Second band helix parallel resonator 1032＆1033, the 3rd band helix parallel resonator 1064＆1061＆1066 and the 4th band
Helix parallel resonator 1063＆1062＆1065, capacitive coupling piece 1021 and the double trap wave points of balance adjust inductor wire 1071.
Layered product 205 is respectively the first insulating medium layer 101, the second insulating medium layer the 102, the 3rd insulation Jie from the bottom to top
Matter layer 103, the 4th insulating medium layer 104, the 5th insulating medium layer 105, the 6th insulating medium layer 106, the 7th insulating medium layer
107th, the 8th insulating medium layer 108 and the 9th insulating medium layer 109.As shown in Fig. 2, 205 surface of layered product is provided with outside first
Portion's input and output electrode 201, the second external input output electrode 202, the first external ground electrode 203 and the second external ground electricity
Pole 204.
First bonding electrode 1011 and secondary shielding grounding electrode 1081 are located at 101 He of the first insulating medium layer respectively
8th insulating medium layer 108, is connected with the first external ground electrode 203 and the second external ground electrode 204.
First ground capacity piece 1041, the second ground capacity piece 1042, the 3rd ground capacity piece 1051 and the 4th ground connection electricity
Hold 1052,4 ground capacity pieces of piece respectively with the first external ground electrode 203 to be connected；First ground capacity piece 1041 and second
Ground capacity piece 1042 is located at the 4th insulating medium layer 104, the 3rd ground capacity piece 1051 and the 4th ground capacity piece 1052
In the 5th insulating medium layer 105.
First band helix parallel resonator 1031＆1034, the second band helix parallel resonator 1032＆1033 difference position
In the both sides of the 3rd insulating medium layer 103, the 3rd band helix parallel resonator 1064＆1061＆1066 and the 4th band helix
Parallel resonator 1063＆1062＆1065 is located at the both sides of the 6th insulating medium layer 106 respectively；4 band helix parallel resonators
Pass through the first wire-wound inductor 1034, the second wire-wound inductor 1033, the 3rd wire-wound inductor 1061 and the 4th wire-wound inductor 1062 respectively
It is connected with the second external ground electrode 204；4 the first capacitance sheet parts 1031 with helix parallel resonator, the second capacitances
Piece part 1302, the 3rd capacitance sheet part 1064 and the 4th capacitance sheet part 1063 respectively with the first ground capacity piece 1041,
Two ground capacity pieces 1042, the 3rd ground capacity piece 1051 and the 4th ground capacity piece 1052 form lower ground capacitance, respectively constitute 4
A inductance capacitance parallel resonator, such as 4 inductance capacitance resonators in Fig. 4.4 band helix parallel resonators are in up and down
4th wire-wound inductor 1062 of position and the 4th capacitance sheet part 1063, the 3rd wire-wound inductor 1061 and the first wire-wound inductor 1034
Coupling up and down, forms electromagnetic coupled between the level of perception, i.e. K12, K34 in Fig. 4；3rd band helix parallel resonator 1064＆
The bands of 1061＆1066 and the 4th helix parallel resonator 1063＆1062＆1065 passes through lead-out wire 1065,1066 and first respectively
External input output electrode 201 is connected with the second external input output electrode 202.
Capacitive coupling piece 1021 is located at the second insulating medium layer 102, and capacitive coupling piece 1021 is in parallel with first band helix
Resonator 1031＆1034, second are with the first capacitance sheet part 1031 of helix parallel resonator 1032＆1033 and the second capacitance
Piece part couples about 1302 and forms capacitive coupling between level；Can be by adjusting the area of the capacitive coupling piece 1021 come between controlled stage
The size of coupled capacitor, and then change the passband width and standing wave of wave filter.
The double trap wave points of balance adjust inductor wire position 1071 in the 7th insulating medium layer 107, balance double trap wave points and adjust inductance
The band helix parallel resonators of band helix parallel resonator 1064＆1061＆1066 and the 4th of line 1071 and the 3rd 1063＆
The 3rd wire-wound inductor 1061 of 1062＆1065 and the 4th capacitance sheet part 1063 form inductive coupled, i.e. K14 in Fig. 4；So that
High-end and low side of the wave filter outside passband one trap wave point of each producing line.The both ends that the double trap wave points of balance adjust inductor wire 1071 are equal
It is connected with the first external ground electrode 203 and the second external ground electrode 204.
In Fig. 1, the oblique line portion with oblique line is metallic conductor, such as the material such as Ag, Cu, Au or other metallic compound,
Formed by printing, evaporating the technologies such as coating.
Although being specifically illustrating and describing this patent with reference to preferred embodiment, those skilled in the art will be bright
In vain, in the case of the spirit and scope without prejudice to this patent, other changes can be made in form and details.
Claims (3)
1. a kind of multilayer non-planar coiling resonance filter, it is characterised in that the wave filter includes：
Layered product (205), is made of multilayer insulation dielectric layer, and surface is provided with the first external input output electrode (201), second
External input output electrode (202), the first external ground electrode (203) and the second external ground electrode (204)；
First bonding electrode (1011) and secondary shielding grounding electrode (1081), the first bonding electrode (1011) and
Secondary shielding grounding electrode (1081) is sequentially placed into the superiors and the orlop of the inside of the wave filter, with first outside
Grounding electrode (203) is connected with the second external ground electrode (204)；
First ground capacity piece (1041), the second ground capacity piece (1042), the 3rd ground capacity piece (1051) and the 4th ground connection
Capacitance sheet (1052), 4 ground capacity pieces are connected with the first external ground electrode (203) respectively；
First band helix parallel resonator (1031＆1034), the second band helix parallel resonator (1032＆1033), the 3rd
Band helix parallel resonator (1064＆1061＆1066) and the 4th band helix parallel resonator (1063＆1062＆1065), 4
A band helix parallel resonator passes through the first wire-wound inductor (1034), the second wire-wound inductor (1033), the 3rd coiling electricity respectively
Sense (1061) and the 4th wire-wound inductor (1062) are connected with the second external ground electrode (204)；4 band helix parallel resonators
The first capacitance sheet part (1031), the second capacitance sheet part (1302), the 3rd capacitance sheet part (1064) and the 4th capacitance sheet
Partly (1063) respectively with the first ground capacity piece (1041), the second ground capacity piece (1042), the 3rd ground capacity piece
(1051) and the 4th ground capacity piece (1052) forms lower ground capacitance, respectively constitutes 4 inductance capacitance parallel resonators；4 bands
Helix parallel resonator is in the 4th wire-wound inductor (1062) of upper-lower position and the 4th capacitance sheet part (1063), the 3rd around
Line inductance (1061) couples up and down with the first wire-wound inductor (1034), forms electromagnetic coupled between the level of perception；3rd band helix
Parallel resonator (1064＆1061＆1066) and the 4th band helix parallel resonator (1063＆1062＆1065) are respectively by drawing
Outlet (1065,1066) is connected with the first external input output electrode (201) and the second external input output electrode (202)；
Capacitive coupling piece (1021), capacitive coupling piece (1021) and first band helix parallel resonator (1031＆1034), second
The first capacitance sheet part (1031) and the second capacitance sheet part (1302) with helix parallel resonator (1032＆1033) are up and down
Coupling forms capacitive coupling between level；
Balance pair trap wave points adjust inductor wires (1071), balance double trap wave points and adjust inductor wire (1071) and the 3rd band helix simultaneously
Join resonator (1064＆1061＆1066) and the 4th the 3rd coiling electricity with helix parallel resonator (1063＆1062＆1065)
Feel (1061) and the formation of the 4th capacitance sheet part (1063) is inductive coupled；The double trap wave points of balance adjust the both ends of inductor wire (1071)
It is connected with the first external ground electrode (203) and the second external ground electrode (204).
2. a kind of multilayer non-planar coiling resonance filter according to claim 1, it is characterised in that layered product is under
It is supreme be respectively the first insulating medium layer (101), it is the second insulating medium layer (102), the 3rd insulating medium layer (103), the 4th exhausted
Edge dielectric layer (104), the 5th insulating medium layer (105), the 6th insulating medium layer (106), the 7th insulating medium layer (107),
Eight insulating medium layers (108) and the 9th insulating medium layer (109)；First bonding electrode (1011) and secondary shielding ground connection
Electrode (1081) is located at the first insulating medium layer (101) and the 8th insulating medium layer (108) respectively；First ground capacity piece
(1041) and the second ground capacity piece (1042) is located at the 4th insulating medium layer (104), the 3rd ground capacity piece (1051) and
Four ground capacity pieces (1052) are located at the 5th insulating medium layer (105)；First band helix parallel resonator (1031＆1034),
Second is located at the both sides of the 3rd insulating medium layer (103) with helix parallel resonator (1032＆1033) respectively, and the 3rd with spiral
Line parallel resonator (1064＆1061＆1066) and the 4th band helix parallel resonator (1063＆1062＆1065) are located at respectively
The both sides of 6th insulating medium layer (106)；Capacitive coupling piece (1021) is located at the second insulating medium layer (102), balances double traps
Point adjusts inductor wire (1071) and is located at the 7th insulating medium layer (107).
3. a kind of multilayer non-planar coiling resonance filter according to claim 1, it is characterised in that coated in insulation
Each pattern on dielectric layer is that metallic conductor is formed by printing or evaporating coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721134984.8U CN207251568U (en) | 2017-09-06 | 2017-09-06 | A kind of multilayer non-planar coiling resonance filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721134984.8U CN207251568U (en) | 2017-09-06 | 2017-09-06 | A kind of multilayer non-planar coiling resonance filter |
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| Publication Number | Publication Date |
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| CN207251568U true CN207251568U (en) | 2018-04-17 |
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| CN201721134984.8U Withdrawn - After Issue CN207251568U (en) | 2017-09-06 | 2017-09-06 | A kind of multilayer non-planar coiling resonance filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465396A (en) * | 2017-09-06 | 2017-12-12 | 嘉兴佳利电子有限公司 | A kind of multilayer non-planar coiling resonance filter |
-
2017
- 2017-09-06 CN CN201721134984.8U patent/CN207251568U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465396A (en) * | 2017-09-06 | 2017-12-12 | 嘉兴佳利电子有限公司 | A kind of multilayer non-planar coiling resonance filter |
| CN107465396B (en) * | 2017-09-06 | 2023-05-30 | 嘉兴佳利电子有限公司 | Multilayer non-planar wound resonance filter |
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Granted publication date: 20180417 Effective date of abandoning: 20230530 |