CN108493546A - A kind of broadband superconduction frequency demultiplexer - Google Patents
A kind of broadband superconduction frequency demultiplexer Download PDFInfo
- Publication number
- CN108493546A CN108493546A CN201810107745.6A CN201810107745A CN108493546A CN 108493546 A CN108493546 A CN 108493546A CN 201810107745 A CN201810107745 A CN 201810107745A CN 108493546 A CN108493546 A CN 108493546A
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- Prior art keywords
- superconduction
- broadband
- frequency demultiplexer
- pass
- filter
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Classifications
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- 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
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
-
- 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
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2135—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using strip line filters
Abstract
The invention discloses a kind of broadband superconduction frequency demultiplexers, are made of high temperature superconducting materia, and for high temperature superconducting materia because its sheet resistance is almost 0, the loss of superconductor is far smaller than conventional metal conductors；There is the characteristic of extremely low insertion loss and excellent Out-of-band rejection with the broadband superconduction frequency demultiplexer that superconductor makes；The broadband superconduction frequency demultiplexer of the present invention is made of multiple superconducting bandpass filters, each superconducting bandpass filter is cascaded by superconduction high-pass structure and superconduction lowpass structures, and broadband superconduction frequency demultiplexer is formed by matching between multiple superconducting bandpass filters；Superconduction frequency demultiplexer transmission line in broadband uses curved structure or rectangular coil structure etc. simultaneously, keeps its compact-sized, small.
Description
Technical field
The invention belongs to microwave communication equipment technical fields, and in particular to a kind of broadband superconduction frequency demultiplexer.
Background technology
Frequency demultiplexer is an important devices of microwave front-end, is all played a crucial role in a communications system.
Frequency demultiplexer sorts the signal received to corresponding channel according to frequency, to reach reception signal, inhibit dry
The purpose disturbed.Not only volume is big for conventional frequency division device, but also with the increase of Out-of-band rejection, band edge steepness, and insertion loss is got over
Greatly.In view of this, in order to make frequency demultiplexer that there is lower loss and superior Out-of-band rejection characteristic, using high temperature superconducting materia system
Make broadband superconduction frequency demultiplexer, due to high temperature superconducting materia because its sheet resistance is almost 0, the loss of superconductor is far smaller than normal
Advise metallic conductor.There is extremely low insertion loss and excellent Out-of-band rejection with the broadband superconduction frequency demultiplexer that superconductor makes
Characteristic.
Although superconduction frequency demultiplexer have the advantages that it is above-mentioned many, since the complexity of superconduction frequency demultiplexer global design is tight
Restrict the performance of superconduction frequency demultiplexer again.To consider matched scheme, isolation during superconduction frequency demultiplexer designs
The factors such as design scheme.
Invention content
The object of the present invention is to provide a kind of broadband superconduction frequency demultiplexers, in order to solve conventional frequency division body product greatly and with band
The problem of outer inhibition, the increase of band edge steepness its insertion loss increase.
A kind of broadband superconduction frequency demultiplexer of the present invention, is at least formed by two-way band-pass filters matching, is filtered per band logical all the way
Wave device is constituted using high-pass filtering structure and low-pass filter structure cascade, and high-pass filtering structure and low-pass filter structure use high temperature
Superconductor is made；High-pass filtering structure uses distributed Microstrip line filter, and closed stub therein and each short circuit are short
Line between transversal is all made of bending structure.
Preferably, the closed stub of high-pass filtering structure uses rectangular coil structure.
Preferably, the low-pass filter structure uses Chebyshev type microstrip filter.
The present invention has the advantages that：
The broadband superconduction frequency demultiplexer of the present invention is made using high temperature superconducting materia, by multiple superconducting bandpass filter groups
At each superconducting bandpass filter is cascaded by superconduction high-pass structure and superconduction lowpass structures.Superconduction high-pass structure and superconduction
Lowpass structures, which cascade the superconducting bandpass filter to be formed, not only has lower loss and superior Out-of-band rejection characteristic, Er Qieyong
There is wide frequency band.And then superconduction frequency demultiplexer in broadband is formed by the matching between multiple superconducting bandpass filters.
Superconduction lowpass structures are using conventional filter model Butterworth, Chebyshev, Bezier, ellipse in the present invention
Deng, lumped-parameter element is transformed by microstrip filter with Kuroda rules by Richards transformation, by Electromagnetic Simulation, if
Count out superconduction lowpass structures.
Superconduction high-pass structure is on the basis of traditional distributed filter designs a model in the present invention, and microstrip line is innovative
Using curved structure or rectangular coil structure etc. superconduction high-pass structure is designed by Electromagnetic Simulation.The present invention is tied using tortuous
Structure or rectangular coil structure etc. are compact-sized, small in order to make broadband superconduction frequency demultiplexer.
Description of the drawings
Fig. 1 is the functional block diagram of conventional frequency division device；
Wherein：1- Metal Packagings box, 2- high-pass filterings structure, 3- low-pass filter structures；
Fig. 2 is the broadband superconduction frequency demultiplexer embodiment for taking curved structure to design；
Fig. 3 is the broadband superconduction frequency demultiplexer embodiment for taking rectangular coil structure design；
Fig. 4 is the broadband frequency demultiplexer of traditional structural design；
Fig. 5 is the broadband frequency demultiplexer S parameter pair using bending structure design broadband superconduction frequency demultiplexer and traditional structural design
Compare result figure.
Specific implementation mode
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1 and Figure 4, it is the frequency demultiplexer of traditional structural design, includes two-way bandpass filtering in Metal Packaging box 1
Device, in each path filter, previous filter is high-pass filtering structure 2, behind cascade low-pass filter structure 3；It is filtered in high pass
In wave structure, 6 microstrip lines of vertical direction are closed stub, and horizontal direction microstrip line is 6 closed stubs of connection
Line.
Based on the theoretical foundation of conventional frequency division device, frequency demultiplexer of the invention is equally formed using multichannel band-pass filters matching
The thinking of broadband frequency demultiplexer, each path filter are cascaded by high-pass filtering structure and low-pass filter structure, but frequently with tradition
Unlike the filter for dividing device, high-pass filtering structure of the invention and low-pass filter structure are prepared using high temperature superconducting materia,
Specific embodiment is as shown in Figures 2 and 3：
Selecting filter type first, filter type include mainly Butterworth, Chebyshev, Bezier, ellipse etc..
The design of Chebyshev's type is selected when superconduction low-pass filter structure 3 designs, and will be collected by Richards transformation and Kuroda rules
Total parameter element transforms design superconduction low-pass filter structure 3 at microstrip filter by Electromagnetic Simulation.
2 type of superconduction high-pass filtering structure is distributed-type, document is designed with reference to classical filter device, using high impedance
Closed stub designs, and the line between closed stub and each closed stub is all made of bending structure, through Electromagnetic Simulation
Design superconduction high-pass structure.Due to using bending structure, can solve that volume is big, weight is heavy, of high cost, inconvenient to carry etc. asks
Topic.As shown in figure 3, in the present embodiment, closed stub uses rectangular coil structure.
Superconduction high-pass structure and the cascade of superconduction lowpass structures are emulated, small, knot is gone out by Electromagnetic Simulation optimization design
The superconducting bandpass filter that structure is compact, Insertion Loss is small, Out-of-band rejection degree is high.
Multiple superconducting bandpass filters are formed broadband superconduction frequency demultiplexer by matching.
Fig. 5 is the frequency demultiplexer S parameter comparison that broadband superconduction frequency demultiplexer and traditional structural design are designed using bending structure,
1 expression of middle curve designs the S parameter of broadband superconduction frequency demultiplexer with bending structure, and curve 2 indicates the frequency demultiplexer of traditional structural design
S parameter.As can be seen from the figure the Out-of-band rejection degree higher of bending structure design broadband superconduction frequency demultiplexer, effective bandwidth are used
Under, S parameter value is than the value bigger of conventional filter, therefore Insertion Loss smaller.
In addition, compared with conventional frequency division device, frequency demultiplexer median filter of the invention is super using the broadband of bending structure design
Frequency demultiplexer is led, is had the characteristics that small, compact-sized.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of broadband superconduction frequency demultiplexer, is at least formed by two-way band-pass filters matching, per bandpass filter all the way using high
Pass filter structure and low-pass filter structure cascade are constituted, which is characterized in that high-pass filtering structure and low-pass filter structure are using high
Temperature superconductive material is made；High-pass filtering structure uses distributed Microstrip line filter, closed stub therein and each short circuit
Line between stub is all made of bending structure.
2. a kind of broadband superconduction frequency demultiplexer as described in claim 1, which is characterized in that the closed stub of high-pass filtering structure
Using rectangular coil structure.
3. a kind of broadband superconduction frequency demultiplexer as claimed in claim 1 or 2, which is characterized in that the low-pass filter structure uses
Chebyshev type microstrip filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107745.6A CN108493546A (en) | 2018-02-02 | 2018-02-02 | A kind of broadband superconduction frequency demultiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107745.6A CN108493546A (en) | 2018-02-02 | 2018-02-02 | A kind of broadband superconduction frequency demultiplexer |
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| CN108493546A true CN108493546A (en) | 2018-09-04 |
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| CN201810107745.6A Pending CN108493546A (en) | 2018-02-02 | 2018-02-02 | A kind of broadband superconduction frequency demultiplexer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676543A (en) * | 2019-09-27 | 2020-01-10 | 南京邮电大学 | External loading type low-pass and band-stop microwave transmission line filter of coupling line with reconfigurable transmission response |
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| CN1433582A (en) * | 1999-12-01 | 2003-07-30 | 纳幕尔杜邦公司 | Tunable high temperature superconducting filter |
| CN201655942U (en) * | 2009-12-29 | 2010-11-24 | 中国电子科技集团公司第十六研究所 | C-wave band frequency-splitting filter |
| CN102522612A (en) * | 2011-12-29 | 2012-06-27 | 中国电子科技集团公司第十六研究所 | High temperature superconducting (HTS) filter with high out of band rejection and high load-bearing power |
| CN202454694U (en) * | 2011-12-29 | 2012-09-26 | 上海杰盛无线通讯设备有限公司 | Low insertion loss miniature duplexer of high-temperature superconductivity broadband continuous channel |
| CN106207330A (en) * | 2016-07-04 | 2016-12-07 | 中国电子科技集团公司第三十六研究所 | A kind of superconducting filter structure |
| CN106450620A (en) * | 2016-11-01 | 2017-02-22 | 清华大学 | High-isolation high-temperature superconductive diplexer and design method thereof |
| CN206194926U (en) * | 2016-10-25 | 2017-05-24 | 绍兴文理学院 | Superconductive band pass filter of wide stop band of tandem type |
-
2018
- 2018-02-02 CN CN201810107745.6A patent/CN108493546A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1433582A (en) * | 1999-12-01 | 2003-07-30 | 纳幕尔杜邦公司 | Tunable high temperature superconducting filter |
| CN201655942U (en) * | 2009-12-29 | 2010-11-24 | 中国电子科技集团公司第十六研究所 | C-wave band frequency-splitting filter |
| CN102522612A (en) * | 2011-12-29 | 2012-06-27 | 中国电子科技集团公司第十六研究所 | High temperature superconducting (HTS) filter with high out of band rejection and high load-bearing power |
| CN202454694U (en) * | 2011-12-29 | 2012-09-26 | 上海杰盛无线通讯设备有限公司 | Low insertion loss miniature duplexer of high-temperature superconductivity broadband continuous channel |
| CN106207330A (en) * | 2016-07-04 | 2016-12-07 | 中国电子科技集团公司第三十六研究所 | A kind of superconducting filter structure |
| CN206194926U (en) * | 2016-10-25 | 2017-05-24 | 绍兴文理学院 | Superconductive band pass filter of wide stop band of tandem type |
| CN106450620A (en) * | 2016-11-01 | 2017-02-22 | 清华大学 | High-isolation high-temperature superconductive diplexer and design method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676543A (en) * | 2019-09-27 | 2020-01-10 | 南京邮电大学 | External loading type low-pass and band-stop microwave transmission line filter of coupling line with reconfigurable transmission response |
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