CN103985933A - Multi-vibration-mode filter capable of adjusting transmission zero - Google Patents
Multi-vibration-mode filter capable of adjusting transmission zero Download PDFInfo
- Publication number
- CN103985933A CN103985933A CN201410035979.6A CN201410035979A CN103985933A CN 103985933 A CN103985933 A CN 103985933A CN 201410035979 A CN201410035979 A CN 201410035979A CN 103985933 A CN103985933 A CN 103985933A
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- bolt
- regulate
- vibration
- cavity
- transmission zero
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 44
- 230000008878 coupling Effects 0.000 claims abstract description 85
- 238000010168 coupling process Methods 0.000 claims abstract description 85
- 238000005859 coupling reaction Methods 0.000 claims abstract description 85
- 238000003780 insertion Methods 0.000 claims description 21
- 230000037431 insertion Effects 0.000 claims description 21
- 208000002925 dental caries Diseases 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000004697 Polyetherimide Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229920004738 ULTEM® Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003094 perturbing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
-
- 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
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
- H01P1/2084—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with dielectric resonators
- H01P1/2086—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with dielectric resonators multimode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a multi-vibration-mode filter capable of adjusting transmission zero. The filter comprises a plurality of cavities, a coupling window, a first tuning screw bolt and a second tuning screw bolt, wherein the coupling window is formed in a wall part between a first cavity and a second cavity that are orderly arranged in the plurality of cavities. The first tuning screw bolt is inserted into the left side of the coupling window and the depth by which the screw bolt is inserted can be adjusted, the second tuning screw bolt is inserted into the right side of the coupling window and the depth by which the screw bolt is inserted can be adjusted, and transmission zero can be adjusted in the multi-vibration-mode filter according to the filter of the invention.
Description
Technical field
Embodiments of the invention relate to a kind of broadband multiplex mode dielectric filter, relate in particular to a kind of broadband character that has, and can regulate the broadband multiplex mode dielectric filter of coupling amount between cavity.
Background technology
At tower amplifier (Tower Mounted Amplifier:TMA), radio wideband head end (Remote Radio Head:RRH), wireless antenna integrated (Radio Integrated Antenna:RIA), usually can see that radio frequency (Radio Frequency:RF) unit is arranged at the positive bottom of base transceiver station (Base Transceiver Station:BTS) antenna.Its object is the loss of transferring electric power and the decline of receiving sensitivity that prevent that BTS feeder cable from causing.
With regard to it, be arranged at the positive bottom of antenna; be the characteristic on tower, the miniaturization of RF unit, the lightweight key factor that is absolutely necessary, and aspect weight and volume, accounting for the filter of maximum ratio; especially need miniaturization, now very active about the research of this respect.
And, development along with mobile communication correlation technique, in order to improve data transmission bauds, need to guarantee system bandwidth, improve receiving sensitivity and minimize and other communication systems between interference, especially need a kind of insertion loss low (Low insertion loss), the broadband filter of inhibition degree high (High rejection).
A kind of filter in the filter of developing in order to meet this demand is multi-vibration-mode filter, it is different from the single-mode filter that utilizes single resonance mode in single resonator, in single resonator, to utilize the filter of a plurality of resonance modes, it is compared with single-mode filter, can minification, can bring into play high-performance.Take double-mode filter as example, and it is compared with single-mode filter, needs 1/2 cavity, therefore can make compact filter.
Due to Engineering Error etc., therefore this multi-vibration-mode filter need to regulate, and it is that the adjusting of object and take regulates the adjusting that the transmission zero (Transmission-Zero) of rejection band is object when keeping centre frequency that the required adjusting of multi-vibration-mode filter is divided into regulating centre frequency.
Take and regulate the adjusting that centre frequency is object, can be regulated by coupling amount between adjusting cavity, but its problem is rationally to regulate four groups of coupling (CQC of cascade; Cascaded Quadruplet Coupling) distortion of caused transmission zero.
Summary of the invention
Technical problem
In order to solve prior art problem as above, provide a kind of multi-vibration-mode filter that can regulate transmission zero.
Technical scheme
In order to reach described object, in accordance with a preferred embodiment of the present invention, provide a kind of multi-vibration-mode filter that can regulate transmission zero, it comprises: a plurality of cavitys; Coupling window, it is formed at the wall portion between continuously arranged the first cavity and the second cavity in described a plurality of cavity; The first tuning bolt, insert in described coupling window in its left side from described coupling window, and can regulate its insertion depth; And
Second tune bolt, insert in described coupling window on its right side from described coupling window, and can regulate its insertion depth.
Filter of the present invention can also comprise the resonator that is arranged at respectively described a plurality of cavitys.
The material of described the first tuning bolt and described second tune bolt can be metal.
Described the first tuning bolt and described second tune bolt pass lid and insert in described coupling window, and the outer peripheral face of described the first tuning bolt and described second tune bolt is formed with screw thread, by rotation, can regulate its insertion depth.
The adjusting of the insertion depth of described the first tuning bolt and described second tune bolt is independently.
Filter of the present invention can also comprise combination member, and itself and described wall portion are arranged in described coupling window abreast, in conjunction with described the first tuning bolt and described second tune bolt.
Described combination member is supported by the joint bolt that is incorporated into lid.
Filter of the present invention can also comprise: coupling plate, it is through described coupling window, by thering is flexible metal material, form, and comprise the second coupling part that is positioned at the first coupling part of the first resonator top that is contained in described the first cavity and is positioned at the second resonator top that is contained in described the second cavity;
The 3rd tuning bolt, it inserts in described the first cavity and can regulate its insertion depth through lid, and described the first coupling part is exerted pressure, and makes described the first coupling part strain downwards; And
The 4th tuning bolt, it inserts in described the second cavity and can regulate its insertion depth through described lid, and described the second coupling part is exerted pressure, and makes described the second coupling part strain downwards.
Technique effect
According to the present invention, in multi-vibration-mode filter, can regulate transmission zero.
Accompanying drawing explanation
Fig. 1 is the perspective elevation of the multi-vibration-mode filter that can regulate transmission zero of one embodiment of the invention;
Fig. 2 is the profile of the multi-vibration-mode filter X-X ' direction that can regulate transmission zero of one embodiment of the invention;
Fig. 3 is the stereogram of the multi-vibration-mode filter that can regulate transmission zero of one embodiment of the invention;
Fig. 4 is the internal plane of the multi-vibration-mode filter that can regulate transmission zero of one embodiment of the invention;
Fig. 5 is the schematic diagram of structure of the coupling plate of concrete diagram one embodiment of the invention;
Fig. 6 for regulating the schematic diagram of the work of coupling amount between cavity in the filter of one embodiment of the invention;
Fig. 7 is the schematic diagram of the adjusted example of the transmission zero of high frequency and low frequency while regulating.
Embodiment
The present invention can carry out numerous variations, can have a plurality of embodiment, in the accompanying drawings illustration specific embodiment being described in detail.But this does not really want to limit the invention to specific embodiment, and be understood to include all changes that thought of the present invention and technical scope comprise, be equal to and replace and substitute.When each accompanying drawing of explanation, similar inscape is used to similar Reference numeral.
Describe with reference to the accompanying drawings embodiments of the invention in detail.
Fig. 1 is the perspective elevation of the multi-vibration-mode filter that can regulate transmission zero of one embodiment of the invention, Fig. 2 is X-X ' the directional profile figure of the multi-vibration-mode filter that can regulate transmission zero of one embodiment of the invention, Fig. 3 is the stereogram of the multi-vibration-mode filter that can regulate transmission zero of one embodiment of the invention, the internal plane of the multi-vibration-mode filter that can regulate transmission zero that Fig. 4 is one embodiment of the invention.
As shown in Figures 1 to 4, the multi-vibration-mode filter that can regulate transmission zero of one embodiment of the invention comprises housing 100, input connector 102, out connector 104, cavity 110 and 112, resonator 120 and 122, coupling window 130, coupling plate 140, joint bolt 150, combination member 160, the first tuning bolt 170, second tune bolt 172, the three tuning bolts 180, the 4th tuning bolt 182, wall portion 190 and lid 200.
The multi-vibration-mode filter that can regulate transmission zero of one embodiment of the invention is provided with input connector 102 and out connector 104, by input connector 102 input rf signals, by the output signal after out connector 104 output filterings.
Fig. 2 shows the multi-vibration-mode filter that 110,112 and two resonators 120,122 of two cavitys are set, but those skilled in the art in the invention obviously can understand can be according to the quantity of required feature change cavity and resonator.
Cavity the 110, the 112nd, the space of generation resonance, is provided with resonator 120,122 in each cavity 110,112.Resonator the 120, the 122nd, for the inscape in the required resonance characteristics of each cavity 110,112 interior acquisitions, the resonance characteristics of cavity is with shape and the size variation of resonator 120,122.
Multi-vibration-mode filter of the present invention can be double-mode filter, now in each cavity, can produce two resonance modes that intersect vertically, the direction of an electric field that has shown first mode and the second pattern in the first cavity 110 of Fig. 4, has shown the direction of an electric field of three-mode and four-mode in the second cavity 112.
In order to play the effect of double-mode filter, between pattern, need to be coupled, in the first cavity 110, between first mode and the second pattern, need to be coupled, in the second cavity 112, between three-mode and four-mode, need to be coupled.
In the situation that there is no other special constructions, in each chamber, esoteric two patterns are without interrelated, independent of one another, so are coupled as 0 between pattern, in order to make to be coupled between pattern, need to increase in addition perturbation structure.In the embodiment that Fig. 1 to Fig. 4 shows, for simplifying accompanying drawing, omitted for the perturbation structure with double-mode work, those skilled in the art in the invention obviously can understand can adopt multiple known perturbation structure.
For example, the bolt that can insert for perturbing to each cavity 110,112, also can be formed in inside cavity the protrusion structure of perturbation.
In order to distinguish the first cavity 110 and the second cavity 112, form wall portion 190, and form coupling window 130 in wall portion 190, so that the first cavity 110 and 112 of the second cavitys are coupled.
In the embodiment shown in Fig. 1 to Fig. 4, coupling plate 140, the 3rd tuning bolt 180 and the 4th tuning bolt 182 are for regulating the inscape of coupling amount between cavity, and combination member 160 and the first tuning bolt 170 and second tune bolt 172 are for regulating the inscape of transmission zero.
Coupling plate 140 runs through coupling window 130 and arranges, and consists of metal material.The two ends of coupling plate 140 are subject to the 3rd tuning bolt and the 4th tuning bolt 180,182 applied pressures that by plastics, are formed.
The 3rd tuning bolt 180 and the 4th tuning bolt 182 are through the lid 200 of filter, and the outer peripheral face of the inner peripheral surface in the hole of lid and the 3rd tuning bolt 180 and the 4th tuning bolt 182 forms screw thread, can regulate insertion depth by rotation.
Fig. 5 is the concrete schematic diagram that shows the coupling plate structure of one embodiment of the invention.
As shown in Figure 5, coupling plate 140 can comprise the first coupling part 142a, the second coupling part 142b and connecting portion 144, wherein, be separated by predetermined space be positioned at the first resonator 120 tops of this first coupling part 142a and the first resonator 120, be separated by the second predetermined interval be positioned at the second resonator 122 tops of this second coupling part 142b and the second resonator 122, this connecting portion 144 connects the first coupling part 142a and the second coupling part 142b.
In explanation of the present invention, connecting portion 144 and the first coupling part 142a and the second coupling part 142b be not at same plane, and therefore whole coupling plate 140 bendings are protruded, but without being confined to this, coupling plate 140 can be also linear structure.
And coupling plate 140 can be fixing by the joint bolt 150 that is inserted into coupling window 130 inside through lid 200.Joint bolt 150 consists of plastics, therefore, becomes the state of electrically float (floating) under the electrically separated state of coupling plate 140 and ground connection or resonator 120,122.
Fig. 6 for regulating the schematic diagram of the work of coupling amount between cavity in the filter of one embodiment of the invention.
As shown in Figure 6, the 3rd tuning bolt 180 inserts in the first cavitys 110 through lid 200, and can regulate insertion depth, and it is exerted pressure to the first coupling part 142a, and the first coupling part 142a that makes coupling plate 140 is strain downwards.
In like manner, the 4th tuning bolt 182 also inserts in the second cavitys 112 through lid 200, and can regulate insertion depth, and it is exerted pressure to the second coupling part 142b, and the second coupling part 142b that makes coupling plate 140 is strain downwards.
Now, the 3rd tuning bolt 180 and the 4th tuning bolt 182 can be by such as ULTEM (Polyetherimide: Polyetherimide) etc. plastics form.
Essentially, as shown in Fig. 6 (a), be separated by predetermined space be positioned at the top of the first resonator 120 of the first coupling part 142a and the first resonator 120, be separated by predetermined space be positioned at the top of the second resonator 122 of the second coupling part 142b and the second resonator 122.
And, as shown in Fig. 6 (b), insertion depth increasing along with the 3rd tuning bolt 180 and the 4th tuning bolt 182, the 3rd tuning bolt 180 and the 4th tuning bolt 182 be pressurization the first coupling part 142a and the second coupling part 142b further, therefore the interval between resonator and the 3rd tuning bolt 180 and the 4th tuning bolt 182 dwindles, and the coupling area between coupling part 142a, 142b and resonator also dwindles thereupon.
By the work shown in Fig. 6, can regulate coupling amount between cavity, and then can regulate resonance frequency.
In addition, known with reference to Fig. 2, in wall portion 190, form coupling window 130, as shown in Figure 2, coupling window can form " T " font.
Coupling plate 140 arranges through coupling window 130, and combination member 160 is arranged in coupling window 130.Combination member 160 can be fixed by joint bolt 150 equally, and joint bolt 150 is fixed on lid 200.
Combination member 160 is arranged in coupling window 130 abreast with wall portion 190, and its two ends are in conjunction with the first tuning bolt 170 and second tune bolt 172.The first tuning bolt 170 and second tune bolt 172 insert inner through lid 200, be incorporated into combination member 160.
In lid 200, for inserting the outer peripheral face of inner peripheral surface, the first tuning bolt 170 and second tune bolt 172 in the hole of the first tuning bolt 170 and second tune bolt 172, form screw thread, the insertion depth of the first tuning bolt 170 and second tune bolt 172 can regulate by its rotation.
Though do not show in Fig. 2, can also adopt self-locking (Self Locking) structure on the first tuning bolt 170 and second tune bolt 172, for fix its state after having regulated bolt bolt insertion depth.
According to another embodiment of the present invention, can not use in addition combination member.That is,, without using combination member, the first tuning bolt 170 and second tune bolt 172 can insert respectively left side and the right side of coupling window 130.Combination member is supplemental support the first tuning bolt 170 and second tune bolt 172, therefore combination member is not set also harmless.
Be incorporated into first tuning bolt 170 in left side of coupling window 130 for the position of the transmission zero that is adjusted in the low frequency of filter band and occurs, second tune bolt 172 is for being adjusted in the position of the transmission zero occurring under the high frequency of filter band.
Now, the adjusting of the transmission zero location under low frequency and the transmission zero location under high frequency is separate.
That is, when regulating the intubating length of the first tuning bolt 170, the frequency of the transmission zero occurring in low frequency is adjusted, and the frequency of the transmission zero occurring under high frequency does not change.
And when regulating the insertion depth of second tune bolt 172, the frequency of the transmission zero occurring under high frequency is adjusted, and the frequency of the transmission zero occurring under low frequency does not change.
The first tuning bolt 170 and second tune bolt 172 preferably form with metal material.
Therefore,, when using regulative mode of the present invention, the adjusting of the transmission zero occurring under high frequency and the transmission zero that occurs under low frequency is independently.
Fig. 7 is the schematic diagram of the adjusted example of the transmission zero of high frequency and low frequency while regulating, wherein Fig. 7 (a) is the schematic diagram that passes through frequency band that shows filter, (b) of Fig. 7 is the schematic diagram of the example that shows that low-frequency transmission zero point of filter while regulating is adjusted, and (c) of Fig. 7 is the schematic diagram of the example that shows that high-frequency transmission zero point of filter while regulating is adjusted.
From (b) of Fig. 7 and (c), when regulating the first tuning bolt and second tune bolt, the transmission zero of low frequency and high frequency is adjusted separately.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (8)
1. can regulate a multi-vibration-mode filter for transmission zero, it is characterized in that, comprise:
A plurality of cavitys;
Coupling window, it is formed at the wall portion between continuously arranged the first cavity and the second cavity in described a plurality of cavity;
The first tuning bolt, insert in described coupling window in its left side from described coupling window, and can regulate its insertion depth; And
Second tune bolt, insert in described coupling window on its right side from described coupling window, and can regulate its insertion depth.
2. the multi-vibration-mode filter that can regulate transmission zero according to claim 1, is characterized in that, also comprises:
Resonator, it is arranged at respectively described a plurality of cavity.
3. the multi-vibration-mode filter that can regulate transmission zero according to claim 1, is characterized in that:
The material of described the first tuning bolt and described second tune bolt is metal.
4. the multi-vibration-mode filter that can regulate transmission zero according to claim 1, is characterized in that:
Described the first tuning bolt and described second tune bolt pass lid and insert in described coupling window, and the outer peripheral face of described the first tuning bolt and described second tune bolt is formed with screw thread, by rotation, can regulate its insertion depth.
5. the multi-vibration-mode filter that can regulate transmission zero according to claim 4, is characterized in that:
The adjusting of the insertion depth of described the first tuning bolt and described second tune bolt is independently.
6. the multi-vibration-mode filter that can regulate transmission zero according to claim 1, is characterized in that, also comprises:
Combination member, itself and described wall portion are arranged in described coupling window abreast, in conjunction with described the first tuning bolt and described second tune bolt.
7. the multi-vibration-mode filter that can regulate transmission zero according to claim 6, is characterized in that:
Described combination member is supported by the joint bolt that is incorporated into lid.
8. the multi-vibration-mode filter that can regulate transmission zero according to claim 1, is characterized in that, also comprises:
Coupling plate, it is through described coupling window, by thering is flexible metal material, form, and comprise the second coupling part that is positioned at the first coupling part of the first resonator top that is contained in described the first cavity and is positioned at the second resonator top that is contained in described the second cavity;
The 3rd tuning bolt, it inserts in described the first cavity and can regulate its insertion depth through lid, and described the first coupling part is exerted pressure, and makes described the first coupling part strain downwards; And
The 4th tuning bolt, it inserts in described the second cavity and can regulate its insertion depth through described lid, and described the second coupling part is exerted pressure, and makes described the second coupling part strain downwards.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130009266A KR101420044B1 (en) | 2013-01-28 | 2013-01-28 | Multi Mode Filter Capable of Tuning Transmission-Zero |
| KR10-2013-0009266 | 2013-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103985933A true CN103985933A (en) | 2014-08-13 |
| CN103985933B CN103985933B (en) | 2018-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410035979.6A Expired - Fee Related CN103985933B (en) | 2013-01-28 | 2014-01-24 | The multi-vibration-mode filter of transmission zero can be adjusted |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101420044B1 (en) |
| CN (1) | CN103985933B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101756124B1 (en) | 2015-11-30 | 2017-07-11 | 주식회사 케이엠더블유 | Cavity type radio frequency filter with cross-coupling notch structure |
| US11108123B2 (en) | 2017-05-17 | 2021-08-31 | Ace Technologies Corporation | Triple-mode dielectric resonator filter, method for manufacturing the same, and band pass filter using dielectric resonator and NRN stub |
| KR101897625B1 (en) | 2017-09-01 | 2018-09-12 | 주식회사 에이스테크놀로지 | (BPF(BandPass Filter) using Triple Mode Dielectric Resonator and NRN(Non-resonating node) Stub |
| CN110299588A (en) * | 2018-03-22 | 2019-10-01 | 京信通信系统（中国）有限公司 | Cavity body filter |
| KR102194401B1 (en) * | 2020-06-18 | 2020-12-23 | 주식회사 엘트로닉스 | Method and system for fabricating high frequency cavity filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090109445A (en) * | 2008-04-15 | 2009-10-20 | (주)에어링크테크놀로지 | Cylindrical dielectric resonator with a disc-typed groove, and multi mode band pass filter using it |
| CN202395127U (en) * | 2011-12-15 | 2012-08-22 | 摩比天线技术（深圳）有限公司 | Coupled structure between adjacent dielectric resonators of TE01 mold and filter |
| US20120249266A1 (en) * | 2011-03-31 | 2012-10-04 | Ace Technologies Corporation | Rf filter for adjusting coupling amount or transmission zero |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3019750B2 (en) * | 1995-08-21 | 2000-03-13 | 株式会社村田製作所 | Dielectric resonator device |
| US6559740B1 (en) * | 2001-12-18 | 2003-05-06 | Delta Microwave, Inc. | Tunable, cross-coupled, bandpass filter |
| KR101207141B1 (en) * | 2011-03-31 | 2012-11-30 | 주식회사 에이스테크놀로지 | Rf filter for tuning coupling amount or transmission zero |
-
2013
- 2013-01-28 KR KR1020130009266A patent/KR101420044B1/en active IP Right Grant
-
2014
- 2014-01-24 CN CN201410035979.6A patent/CN103985933B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090109445A (en) * | 2008-04-15 | 2009-10-20 | (주)에어링크테크놀로지 | Cylindrical dielectric resonator with a disc-typed groove, and multi mode band pass filter using it |
| US20120249266A1 (en) * | 2011-03-31 | 2012-10-04 | Ace Technologies Corporation | Rf filter for adjusting coupling amount or transmission zero |
| CN202395127U (en) * | 2011-12-15 | 2012-08-22 | 摩比天线技术（深圳）有限公司 | Coupled structure between adjacent dielectric resonators of TE01 mold and filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103985933B (en) | 2018-04-17 |
| KR101420044B1 (en) | 2014-07-17 |
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