CN207009621U - A kind of high-performance bandstop filter based on LTCC - Google Patents
A kind of high-performance bandstop filter based on LTCC Download PDFInfo
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- CN207009621U CN207009621U CN201721029441.XU CN201721029441U CN207009621U CN 207009621 U CN207009621 U CN 207009621U CN 201721029441 U CN201721029441 U CN 201721029441U CN 207009621 U CN207009621 U CN 207009621U
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- transmission line
- main transmission
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- resonator
- resonators
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Abstract
The utility model discloses a kind of high-performance bandstop filter based on LTCC, including main transmission line and two resonators being connected with main transmission line；Main transmission line is reciprocally bending and symmetrical meander line；Two resonators are arranged in the left part and right part of main transmission line；Resonator is 1/2 wavelength stub resonator, and is divided into two parts and is stacked on the both sides up and down of main transmission line respectively；Connected between upper and lower two parts of resonator by coated metal；Main transmission line, two resonators and coated metal are integrated to be sintered in LTCC.The utility model is the high-performance bandstop filter based on LTCC encapsulation, innovative connects resonator 1/2 wavelength stub resonator stack in different layers, and by coated metal face, is greatly reduced the area of whole circuit, level of integrated system is improved, and quality factor are higher.
Description
Technical field
The utility model belongs to microwave engineering techniques field, more particularly to a kind of high-performance bandreject filtering based on LTCC
Device.
Background technology
Frequency microwave wave filter is the important component of communication system, radar system, measuring system, the quality of its performance
It is related to the quality of systematic function.Therefore, frequency microwave wave filter is always the emphasis and focus of wireless communication field research.With
Developing rapidly for communication and Military Electronics technology, reduces volume and size, it is microwave and millimeter wave communication system hair to reduce cost
Open up the key issue that must be solved.Traditional microwave integrated circuit uses single-layer medium material, if it is desired to reduces volume, just must
In a size limited or integrated micro element as much as possible must be wanted in volume.
Traditional bandstop filter design structure is usually 1/2 wavelength stub resonator, and along main waveguide or main transmission
Line arranges, and resonator separations are the radix times of 1/4 wavelength, and the coupling between the bandstop filter resonator of this structure is to whole
Wave filter has a great influence, and causes the tolerance of wave filter poor, and often volume is larger for the wave filter of this structure in addition, difficult
To meet the requirement of Modern Communication System miniaturization more.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of high performance tape resistance based on LTCC
Wave filter.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of high-performance bandstop filter based on LTCC, including main transmission line and be connected with the main transmission line two
Resonator；
The main transmission line is reciprocally bending and symmetrical meander line；
Two resonators are arranged in the left part and right part of the main transmission line；
The resonator is 1/2 wavelength stub resonator, and is divided into two parts and is stacked on the main transmission respectively
The both sides up and down of line；
Connected between upper and lower two parts of the resonator by coated metal；
The main transmission line, two resonators and the coated metal are integrated to be sintered in LTCC.
Further, signal transmission hole, a left side for the main transmission line are left in the left and right ends of the LTCC
The signal transmission hole passes at two respectively at right both ends.
The beneficial effects of the utility model are：
The utility model is the high-performance bandstop filter based on LTCC encapsulation, innovative that 1/2 wavelength stub is humorous
The device that shakes is stacked on different layers, and is connected resonator by coated metal face, is greatly reduced the area of whole circuit,
Level of integrated system is improved, and quality factor are higher.
Brief description of the drawings
Fig. 1 is the planar structure schematic diagram of the high-performance bandstop filter described in the utility model based on LTCC；
Fig. 2 is the decomposition texture schematic diagram of the high-performance bandstop filter described in the utility model based on LTCC；
In figure：1- main transmission lines, 2- resonators, 3- resonators, 4- coated metals, 5- LTCCs, 21- resonators
Upper strata, 22- resonators lower floor, 31- resonators upper strata, 32- resonators lower floor.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to shown in Fig. 1 and Fig. 2, the utility model includes main transmission line (1) and two resonance being connected with main transmission line
Device, label (2) and (3)；
Main transmission line is reciprocally bending and symmetrical meander line, and two resonators are arranged in a left side for main transmission line
Portion and right part；The main transmission line of meandering line structure not only can significantly strengthen the coupling between resonator, and can make circuit face
Product significantly reduces, and realizes miniaturization；
Resonator is 1/2 wavelength stub resonator, and is divided into two parts and is stacked on the upper and lower of main transmission line respectively
Both sides, being connected by coated metal (4) between upper and lower two parts of resonator, label (21) and (31) they are resonator upper strata,
Label (22) and (32) are resonator lower floor.The resonator designed by stacked structure can reduce the size of whole circuit,
It is divided into two layers up and down, significantly solves the problem of circuit size is too big；
Main transmission line, two resonators and coated metal are integrated to be sintered in LTCC (5).Using LTCC skills
Art realizes the deep bandstop filter of trap, and traditional resonator is at intervals of the radix times of 1/4 wavelength, innovative profit in of the invention
With LTCC structure characteristic, by adjusting the coupling between resonator, and then cross-couplings amount is influenceed, be successfully introduced into a pair of transmission poles
Point, sideband steepness are substantially improved, and realize miniaturization.
In order to be connected with external circuit, signal transmission hole is left in the left and right ends of LTCC, main transmission line
Signal transmission hole passes at two respectively for left and right ends.
The utility model is the high-performance bandstop filter based on LTCC, and LTCC is LTCC, is in nineteen eighty-two
The new material technology developed by Hughes Electronics.It is accurate and fine and close that exactly thickness is made in low-temperature sintered ceramics powder by LTCC technology
Green band, make required electricity using techniques such as laser boring, micropore slip casting, the printings of accurate conductor paste on green band
Road figure, and by the embedment of multiple passive elements wherein, then overlap together, sintered at 900 DEG C, three-dimensional circuit network is made
Passive integration component, may be made as the three-dimensional circuit substrate of built-in passive element, can be mounted on its surface passive and active
Device, the integrated functional module of passive and active is made.LTCC technology uses the metals such as the gold, silver of high conductivity, copper as conductive
Medium, all circuits, which are laminated on together, disposably to be sintered, and saves the time, reduces cost, and dielectric is not
It is oxidizable, it is not necessary to plating protection, significantly to reduce the size of circuit.
The utility model realizes bandstop filter using LTCC technology, innovative by 1/2 wavelength stub resonator heap
Different layers are stacked in, and are connected the resonator of different layers by coated metal, are compared with conventional resonator, not only area subtracts
It is half as large, level of integrated system is improved, and quality factor are higher.Develop the element and circuit of novelty using sandwich construction, can
To substantially improve the performance of circuit.In addition, sandwich construction also provides the free degree of a circuit layout topology, element places ratio
Single layer structure circuit layout is more flexible, is new one based on the multilayer integrated passive components that LTCC Technology grows up
For the main direction of development of passive element.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
In the range of shield.
Claims (2)
1. a kind of high-performance bandstop filter based on LTCC, including main transmission line and be connected with the main transmission line two it is humorous
Shake device, it is characterised in that：
The main transmission line is reciprocally bending and symmetrical meander line；
Two resonators are arranged in the left part and right part of the main transmission line；
The resonator is 1/2 wavelength stub resonator, and is divided into two parts and is stacked on the main transmission line respectively
Upper and lower both sides；
Connected between upper and lower two parts of the resonator by coated metal；
The main transmission line, two resonators and the coated metal are integrated to be sintered in LTCC.
2. the high-performance bandstop filter according to claim 1 based on LTCC, it is characterised in that：The low temperature co-fired pottery
Signal transmission hole is left in the left and right ends of porcelain, and the signal transmission hole is worn at two respectively for the left and right ends of the main transmission line
Go out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721029441.XU CN207009621U (en) | 2017-08-16 | 2017-08-16 | A kind of high-performance bandstop filter based on LTCC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721029441.XU CN207009621U (en) | 2017-08-16 | 2017-08-16 | A kind of high-performance bandstop filter based on LTCC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009621U true CN207009621U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721029441.XU Active CN207009621U (en) | 2017-08-16 | 2017-08-16 | A kind of high-performance bandstop filter based on LTCC |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114830434A (en) * | 2019-12-19 | 2022-07-29 | 华为技术有限公司 | Packaged antenna device and wireless communication device |
-
2017
- 2017-08-16 CN CN201721029441.XU patent/CN207009621U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114830434A (en) * | 2019-12-19 | 2022-07-29 | 华为技术有限公司 | Packaged antenna device and wireless communication device |
| CN114830434B (en) * | 2019-12-19 | 2023-04-18 | 华为技术有限公司 | Packaged antenna device and wireless communication device |
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