CN105406158A - Dual-mode dielectric filter enabling frequency and coupling control based metal patches - Google Patents
Dual-mode dielectric filter enabling frequency and coupling control based metal patches Download PDFInfo
- Publication number
- CN105406158A CN105406158A CN201511025740.1A CN201511025740A CN105406158A CN 105406158 A CN105406158 A CN 105406158A CN 201511025740 A CN201511025740 A CN 201511025740A CN 105406158 A CN105406158 A CN 105406158A
- Authority
- CN
- China
- Prior art keywords
- metal patch
- coupling
- dielectric filter
- dielectric
- bimodulus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/10—Dielectric resonators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/10—Dielectric resonators
- H01P7/105—Multimode resonators
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a dual-mode dielectric filter enabling frequency and coupling control based on metal patches. The dual-mode dielectric filter includes two dielectric resonators, metal patches for controlling coupling strength, metal patches for controlling resonant frequency and an inter-cavity coupling structure; the dielectric resonators are coupled through the inter-cavity coupling structure; and the metal patches for controlling coupling strength and the metal patches for controlling resonant frequency are pasted on the outer walls of the two dielectric resonators. According to the dual-mode dielectric filter, the resonant frequency of the filter can be controlled through controlling the height of the metal patches for controlling resonant frequency; and the inter-cavity coupling degree of the filter can be controlled through changing the height of the metal patches for controlling coupling strength. The dual-mode dielectric filter of the invention has the advantages of small size, high Q value, convenience in processing and manufacturing and the like.
Description
Technical field
The present invention relates to a kind of filter, be specifically related to a kind of bimodulus dielectric filter based on metal patch control frequency and coupling.
Background technology
Along with the high speed development of wireless communication system, modern society has entered the epoch that a high speed information is propagated, moment visual information transmitting at one's side at us, radio communication has been widely used in the every field of social life, such as mobile communication, radar navigation and electronic countermeasures.Microwave filter has irreplaceable important function at wireless communication system, in the process of radio communication, selection index system is played to the frequency communicated, namely unwanted frequency is suppressed, make its not by, allow useful frequency pass through, the quality of its performance often has direct impact to the performance of whole wireless communication system simultaneously.
In recent decades, along with the fast development of wireless communication technology, not only require that microwave filter has good performance, namely insertion loss is little, Out-of-band rejection is high and temperature stability is good, also wish that its volume is little as much as possible simultaneously, so that system is integrated and miniaturized, and adopt the bimodulus dielectric filter of the dielectric material of high-k and two-film technique design just in time to meet the demand of development of wireless communication systems, obtain swift and violent development, be widely used in the field such as wireless base station and space flight and aviation.
1999, the people such as IanC.Hunter and J.DavidRhodes delivered the article being entitled as " Dual-modefilterswithconductor-loadeddielectricresonators " on IEEETransactionsonMicrowaveTheoryandTechniques.Author utilizes the cylindrical dielectric resonator in four metal-loaded chambeies to achieve eight rank bimodulus dielectric filters, in this filter cavity, coupling realizes by carrying out the rosette being placed on cylindrical dielectric resonator upper surface slotting, and realizes the control to stiffness of coupling in chamber by the degree of depth and width controlling fluting.Be coupled between the chamber of this filter, realize by opening a window and place coaxial conductive rod on the wall of chamber
2011, the people such as LucaPelliccia and FabrizioCacciamani delivered the article being entitled as " Ultra-compactpseudoellipticwaveguidefiltersusingTMdual-m odedielectricresonators " on MicrowaveConferenceProceedings (APMC).Author utilizes the dielectric resonator employing TM mould, achieves two-chamber quadravalence bimodulus dielectric filter.In the chamber of this filter, coupling is by carrying out corner cut realization to outside wire chamber, by controlling the size of wire chamber corner cut, can realize the control to stiffness of coupling in chamber, between the chamber of this filter, coupling is realized by the position fluting the strongest two cavity magnetic field intensitys.
Summary of the invention
In order to overcome shortcoming that prior art exists with not enough, the invention provides a kind of bimodulus dielectric filter based on metal patch control frequency and coupling.
The present invention adopts following technical scheme:
A kind of bimodulus dielectric filter based on metal patch control frequency and coupling, comprise two dielectric resonators, control coupled structure between the metal patch of stiffness of coupling, the metal patch controlling resonance frequency and chamber, described two dielectric resonators are coupled by coupled structure between chamber, and the metal patch of described control stiffness of coupling and the metal patch of control resonance frequency are all attached on the outer wall of two dielectric resonators.
Between described chamber, coupled structure comprises the metallic conductor ring of coupling window and the placement of vertical coupled window, and described coupling window is opened between two dielectric resonators.
The metal patch of described control stiffness of coupling is specially two panels, is respectively the first metal patch and the second metal patch, and each dielectric resonator outer wall posts a slice.
The metal patch of described control resonance frequency is specially four, and be respectively the 3rd, the 4th, the 5th and the 6th metal patch, each dielectric resonator outer wall posts two panels.
Described two dielectric resonators are cylindrical.
Metallic conductor ring between described chamber in coupled structure is rectangular metal ring.
Preferably, also comprise input and output port, all realized by loop configuration.
Preferably, also comprise external cavity, described two dielectric resonators are arranged in external cavity.
Preferably, the metal patch of described control stiffness of coupling is specifically attached to the direction becoming 45 degree with TM degenerate mode two patterns; The metal patch of described control resonance frequency is specifically attached to the strongest position of TM degenerate mode electric field.
Three-piece metal paster is posted on the surface of each cylindrical dielectric resonator, wherein two panels metal patch controls resonance frequency, stiffness of coupling in another sheet control chamber, stiffness of coupling in resonance frequency and chamber can be changed by the height changing metal patch, be coupled through between chamber and window and the realization of rectangular metal conductor loops, input/output port coupling is then realized by loop configuration.
Beneficial effect of the present invention:
(1) adopt the control of metal patch realization to bimodulus dielectric filter frequency, be convenient to processing and manufacturing;
(2) adopt the control of metal patch realization to bimodulus dielectric filter stiffness of coupling, be convenient to processing and manufacturing;
(3) adopt bimodulus dielectric resonator to carry out design and there is the little and Q value advantages of higher of volume.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the emulation schematic diagram of the embodiment of the present invention;
Fig. 3 is that the embodiment of the present invention posts resonant cavity end view after two metal patches;
Fig. 4 be in the present invention resonance frequency with the curve chart of metal patch height change;
Fig. 5 is the end view of the resonant cavity posting coupling metal paster;
Fig. 6 is the change curve of coupling coefficient with coupling metal patch height.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, a kind of bimodulus dielectric filter based on metal patch control frequency and coupling, comprise two dielectric resonators 7, 8 and external cavity 11, described two dielectric resonators 7, 8 are placed in external cavity 11, described dielectric resonator is specially cylindrical, two dielectric resonators 7, 8 are coupled by coupled structure between chamber 12, between described chamber, coupled structure 12 is by having a coupling window between two dielectric resonators, then rectangular metal ring be vertically placed on coupling window realize be of coupled connections, the control to cavity stiffness of coupling can be realized by the size of control rectangle becket.
Described bimodulus dielectric filter also comprises input and output port 10,9, and it adopts the loop configuration of ground connection to realize, and can be realized the control of external component quality factor by the area controlling anchor ring.
Described bimodulus dielectric filter also comprises the metal patch controlling stiffness of coupling, be specially two panels, be respectively the first metal patch and the second metal patch 1,2, a slice is posted in each dielectric resonator outside, according to the position of the field distribution determination metal patch of resonator, can realize the control to stiffness of coupling in chamber by the height controlling coupling metal paster, the size of first and second metal patch described is specifically determined according to actual conditions, can identical also can be different.
The metal patch of described control resonance frequency is specially four, be respectively the 3rd, the 4th, the 5th and the 6th metal patch 3,4,5,6, two panels is posted in each dielectric resonator outside, according to the position of the field distribution determination metal patch of resonator, the resonance frequency of bimodulus dielectric filter determined by the height of the size of dielectric resonator and the metal patch of control frequency, can realize the control to bimodulus dielectric filter resonance frequency by the height controlling metal patch.
The described metal patch controlling coupling is positioned on cylindrical dielectric resonator outer wall, it is specifically becoming on the direction of 45 degree with TM degenerate mode two patterns, the metal patch of described control frequency is positioned on cylindrical dielectric resonator outer wall, and it is specifically on the position that TM degenerate mode electric field is the strongest.Principle of the present invention illustrates:
The particular location controlling the metal patch of stiffness of coupling and the metal patch of control resonance frequency is determined by the field distribution of TM degenerate mode two patterns in resonant cavity.
In order to verify the control of metal patch to filter resonance frequency, filter posts two pieces of metal patches, keeps the height t 1 of wherein one piece of metal patch constant, different value is got to the height t 2 of another block metal patch and emulates, Fig. 3 is resonant cavity end view, and Fig. 4 is simulation result.
Can be seen by the simulation result of Fig. 4, keep the height t 1 of wherein one piece of metal patch constant, along with the height t 2 of another block metal patch constantly increases, the frequency of a TM degenerate mode pattern can not change, the frequency of another pattern is on a declining curve, therefore the height of metal patch is larger, and the resonance frequency of the associative mode controlled is lower, and in resonant cavity, the resonance frequency of two patterns is independent controlled.
Be illustrated in figure 5 the end view posting coupling metal paster, in order to verify that the height hc of metal patch is on the impact of stiffness of coupling in chamber, now keep other parameter constant of filter, get different value emulate the height hc of coupling metal paster, Fig. 6 emulates the coupling coefficient k12 obtained.
Can be seen by Fig. 6, along with the height hc of metal patch constantly increases, the coupling coefficient of TM degenerate mode is in the trend increased, and namely along with the height hc of metal patch constantly increases, the stiffness of coupling of TM degenerate mode constantly increases.Therefore, the control to stiffness of coupling in chamber can be realized by the height hc controlling the metal patch of stiffness of coupling.
In the embodiment of the present invention, given centre frequency is 1950MHz, the diameter of cylindrical dielectric resonator used is 31.3mm, be highly 14mm, metal patch i.e. the 3rd, the 4th, the 5th and the 6th metal patch of control frequency, wherein the height of the 4th and the 6th metal patch is 6.7mm, the height of the 5th metal patch is 2.9mm, the height of the 3rd metal patch is 4.8mm, and in control chamber, the height of the metal patch of coupling is 8.22mm, and its simulation result as shown in Figure 2.
The present invention proposes a kind of design controlling bimodulus dielectric filter frequency and coupling.Under this scheme, the bimodulus dielectric filter being convenient to process can be designed.The feature such as have that volume is little, power loss is low, Out-of-band rejection is high due to bimodulus dielectric filter and temperature stability is good, is applicable to actual industrial production.The present invention not only has good operating characteristic, is also easy to processing and manufacturing simultaneously.The innovation of this filter is to achieve control to bimodulus dielectric filter resonance frequency and coupling by metal patch structure.
First according to the position of the field distribution determination metal patch of resonator.The resonance frequency of bimodulus dielectric filter determined by the height of the size of dielectric resonator and the metal patch of control frequency, can realize the control to bimodulus dielectric filter resonance frequency by the height controlling metal patch.Meanwhile, the height by controlling coupling metal paster can realize the control to stiffness of coupling in chamber.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not limited by the examples; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. the bimodulus dielectric filter based on metal patch control frequency and coupling, it is characterized in that, comprise two dielectric resonators, control coupled structure between the metal patch of stiffness of coupling, the metal patch controlling resonance frequency and chamber, described two dielectric resonators are coupled by coupled structure between chamber, and the metal patch of described control stiffness of coupling and the metal patch of control resonance frequency are all attached on the outer wall of two dielectric resonators.
2. bimodulus dielectric filter according to claim 1, is characterized in that, between described chamber, coupled structure comprises the metallic conductor ring of coupling window and the placement of vertical coupled window, and described coupling window is opened between two dielectric resonators.
3. bimodulus dielectric filter according to claim 1, is characterized in that, the metal patch of described control stiffness of coupling is specially two panels, is respectively the first metal patch and the second metal patch, and each dielectric resonator outer wall posts a slice.
4. bimodulus dielectric filter according to claim 1, is characterized in that, the metal patch of described control resonance frequency is specially four, and be respectively the 3rd, the 4th, the 5th and the 6th metal patch, each dielectric resonator outer wall posts two panels.
5. bimodulus dielectric filter according to claim 1, is characterized in that, described two dielectric resonators are cylindrical.
6. bimodulus dielectric filter according to claim 2, is characterized in that, described metallic conductor ring is rectangular metal ring.
7. the bimodulus dielectric filter according to any one of claim 1-6, is characterized in that, also comprises input and output port, is all realized by loop configuration.
8. the bimodulus dielectric filter according to any one of claim 1-6, is characterized in that, also comprise external cavity, and described two dielectric resonators are arranged in external cavity.
9. bimodulus dielectric filter according to claim 1, is characterized in that, the metal patch of described control stiffness of coupling is specifically attached to the direction becoming 45 degree with TM degenerate mode two patterns; The metal patch of described control resonance frequency is specifically attached to the strongest position of TM degenerate mode electric field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025740.1A CN105406158A (en) | 2015-12-29 | 2015-12-29 | Dual-mode dielectric filter enabling frequency and coupling control based metal patches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025740.1A CN105406158A (en) | 2015-12-29 | 2015-12-29 | Dual-mode dielectric filter enabling frequency and coupling control based metal patches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105406158A true CN105406158A (en) | 2016-03-16 |
Family
ID=55471508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511025740.1A Pending CN105406158A (en) | 2015-12-29 | 2015-12-29 | Dual-mode dielectric filter enabling frequency and coupling control based metal patches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105406158A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252797A (en) * | 2016-09-05 | 2016-12-21 | 华南理工大学 | A kind of bimodulus medium belt bandpass filter |
| CN106654476A (en) * | 2017-01-12 | 2017-05-10 | 华南理工大学 | Novel four-mode dielectric band-pass filter |
| WO2019095103A1 (en) * | 2017-11-14 | 2019-05-23 | 华为技术有限公司 | Dielectric resonator and filter |
| CN109841935A (en) * | 2019-03-15 | 2019-06-04 | 苏州市协诚五金制品有限公司 | A kind of multi-layered ceramic waveguide filter |
| CN113036329A (en) * | 2021-03-25 | 2021-06-25 | 南通大学 | Dual-channel filter based on dual-mode dielectric resonator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929721A (en) * | 1996-08-06 | 1999-07-27 | Motorola Inc. | Ceramic filter with integrated harmonic response suppression using orthogonally oriented low-pass filter |
| US20130049898A1 (en) * | 2011-08-23 | 2013-02-28 | Mesaplexx Pty Ltd | Filter |
| CN103296341A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Filter |
| CN105070986A (en) * | 2015-07-31 | 2015-11-18 | 华南理工大学 | Dielectric dual-mode band-pass filter based on patch structure |
| CN205335401U (en) * | 2015-12-29 | 2016-06-22 | 华南理工大学 | Bimodulus dielectric filter based on metal paster controlled frequency and coupling |
-
2015
- 2015-12-29 CN CN201511025740.1A patent/CN105406158A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929721A (en) * | 1996-08-06 | 1999-07-27 | Motorola Inc. | Ceramic filter with integrated harmonic response suppression using orthogonally oriented low-pass filter |
| US20130049898A1 (en) * | 2011-08-23 | 2013-02-28 | Mesaplexx Pty Ltd | Filter |
| CN103296341A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Filter |
| CN105070986A (en) * | 2015-07-31 | 2015-11-18 | 华南理工大学 | Dielectric dual-mode band-pass filter based on patch structure |
| CN205335401U (en) * | 2015-12-29 | 2016-06-22 | 华南理工大学 | Bimodulus dielectric filter based on metal paster controlled frequency and coupling |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252797A (en) * | 2016-09-05 | 2016-12-21 | 华南理工大学 | A kind of bimodulus medium belt bandpass filter |
| CN106252797B (en) * | 2016-09-05 | 2020-01-14 | 华南理工大学 | Dual-mode dielectric band-pass filter |
| CN106654476A (en) * | 2017-01-12 | 2017-05-10 | 华南理工大学 | Novel four-mode dielectric band-pass filter |
| CN106654476B (en) * | 2017-01-12 | 2020-02-18 | 华南理工大学 | Four-mode dielectric band-pass filter |
| WO2019095103A1 (en) * | 2017-11-14 | 2019-05-23 | 华为技术有限公司 | Dielectric resonator and filter |
| US11171397B2 (en) | 2017-11-14 | 2021-11-09 | Huawei Technologies Co., Ltd. | Dielectric resonator and filter |
| CN109841935A (en) * | 2019-03-15 | 2019-06-04 | 苏州市协诚五金制品有限公司 | A kind of multi-layered ceramic waveguide filter |
| CN113036329A (en) * | 2021-03-25 | 2021-06-25 | 南通大学 | Dual-channel filter based on dual-mode dielectric resonator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105406158A (en) | Dual-mode dielectric filter enabling frequency and coupling control based metal patches | |
| CN105048051B (en) | A kind of tunable substrate integration wave-guide circular resonant cavity filter | |
| CN108923126A (en) | A kind of four molds based on substrate integration wave-guide have the filter antenna of double zero points | |
| CN110797613B (en) | Dielectric waveguide filter with ten-order and six-notch | |
| US10164309B2 (en) | Dielectric resonator and dielectric filter | |
| CN109411853A (en) | A kind of high tri- mould dielectric resonance hollow structure of Q of cavity and the filter containing the resonance structure | |
| CN106711557A (en) | Four-mode dielectric band-pass filter | |
| CN106252797A (en) | A kind of bimodulus medium belt bandpass filter | |
| CN103296343B (en) | Filter | |
| CN109411852A (en) | A kind of high tri- mould dielectric resonance structure of Q of cavity and the filter containing the resonance structure | |
| CN103904388A (en) | Interelement strong coupling ultra-wide range-adjustable active frequency selection surface | |
| CN106654476A (en) | Novel four-mode dielectric band-pass filter | |
| CN206225509U (en) | A kind of new three moulds medium bandpass filter | |
| CN101800348A (en) | TM membrane dielectric resonator | |
| CN205335401U (en) | Bimodulus dielectric filter based on metal paster controlled frequency and coupling | |
| CN108767382B (en) | The adjustable three moulds bandpass filter of electricity based on substrate integration wave-guide | |
| CN106785253A (en) | A kind of new three moulds medium bandpass filter | |
| CN206422195U (en) | A kind of new four moulds medium bandpass filter | |
| CN206210993U (en) | A kind of bimodulus medium bandpass filter | |
| Cao et al. | A compact wideband bandpass filter using novel CSRR loaded QMSIW resonator with high selectivity | |
| CN203134947U (en) | Filter and coupling structure of metal resonator and medium resonator | |
| CN204905389U (en) | Microstrip snail wave filter | |
| CN104332683B (en) | A kind of dual-passband hexagon wave filter for being applied to PCS ＆ WiMAX frequency ranges | |
| CN208622911U (en) | A kind of novel three moulds SIW resonant cavity filter | |
| CN206564309U (en) | A kind of four mould medium bandpass filters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |