CN102496764A - Variable frequency superconducting microstrip line resonator - Google Patents

Variable frequency superconducting microstrip line resonator Download PDF

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CN102496764A
CN102496764A CN2011104542640A CN201110454264A CN102496764A CN 102496764 A CN102496764 A CN 102496764A CN 2011104542640 A CN2011104542640 A CN 2011104542640A CN 201110454264 A CN201110454264 A CN 201110454264A CN 102496764 A CN102496764 A CN 102496764A
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resonator
line
pectination
strip line
switch
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CN102496764B (en
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魏斌
应志军
曹必松
张晓平
郭旭波
李启荣
冯骋
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Tsinghua University
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Tsinghua University
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Abstract

The invention relates to a variable frequency superconducting microstrip line resonator, which comprises an upper-layer superconducting resonator structure, a lower-layer superconducting thin film and a dielectric substrate positioned between the upper-layer superconducting resonator structure and the lower-layer superconducting thin film. The variable frequency superconducting microstrip line resonator is characterized in that: the upper-layer superconducting resonator structure comprises a continuous main strip line, one or more external microstrip lines and one or more switches; one or two ends of the main strip line form an interdigital coupled structure with the one or more external microstrip lines; the interdigital coupled structure is formed by intersecting the port comb crotch structure of the main strip line and the port comb crotch structure(s) of the one or more external microstrip lines, and the port comb crotch structures of the main strip line and the one or more external microstrip lines do not contact each other; the external microstrip lines are grounded through the switches; and the grounding state, off state or state combinations of the one or more external microstrip lines are controlled by the one or more switches to change the resonance frequency of the resonator. The variable frequency superconducting microstrip line resonator has the advantages of high quality factor, wide variable frequency range, a great number of variable frequency points and frequency control accuracy, is easily made, and can be used for designing and manufacturing high-performance variable frequency band-pass, band elimination, high-pass, low-pass and multi-band superconducting filters.

Description

A kind of variable ratio frequency changer superconductive micro-strip line resonator
Technical field
The invention belongs to microwave technical field, relate to a kind of variable ratio frequency changer superconductive micro-strip line resonator.
Background technology
Because superconductor is compared low two to three orders of magnitude of common metal material in the sheet resistance of microwave frequency band; The super conductive filter that superconductive micro-strip line resonator is formed has excellent filtering characteristic; The general basic composition of the superconductive micro-strip line resonator of stripline technique realization that adopts comprises upper strata superconducting resonator structure 11, lower floor's superconducting thin film 12, the dielectric substrate 13 between this upper and lower two-layer superconductor, and is as shown in Figure 1.Wherein, upper strata resonator structure 11 is superconductor with lower floor's conductor thin film; Substrate can use other materials such as magnesium oxide substrate, lanthanum aluminate substrate, sapphire.Super conductive filter has obtained using very widely in microwave technical field in recent years, is particularly requiring the application in high fields such as electronic countermeasures, satellite communication and radio astronomy significant to filtering characteristic.
Along with of the deep application of increasing microwave technology in each field; It is more and more intensive and complicated that microwave spectrum in the space environment also becomes, and causes using the receiver performance of common metal filter or dielectric filter to receive with frequency range or successive bands noise signal serious disturbance day by day.In order to address this problem, increasing scientific research personnel invests development high-performance variable ratio frequency changer filter to sight, when having noise jamming to occur in the filter passband, can initiatively be converted to the passband work that another one does not have interference to filter.In recent years, the research work in this field, various countries mainly concentrates in the variable-frequency conventional filter research, such as tunable medium filter (Raafat R.Mansour; IEEE microwave magazine, October (2009), 84); Adjustable conventional microstripline filter (Jia-Sheng Hong; IEEE microwave magazine, October (2009), 73).A common shortcoming of these tunable filters is that the resonator quality factor are not high, and filter loss is bigger.
Making the problem of high-performance variable ratio frequency changer microstripline filter most critical, is how to realize high-performance variable ratio frequency changer mini strip line resonator, and the extraordinary selection that the variable ratio frequency changer superconducting resonator addresses this problem just.The variable ratio frequency changer super conductive filter of having published at present mainly contains two kinds of implementations: a kind of is a slice dieelctric sheet that above superconductive micro-strip line resonator, suspends; Change the dieelctric sheet hoverheight through the mechanical movement method; Thereby change the resonance frequency of superconducting resonator; The difficulty of its realization is to be difficult to the micromachine control device of working at low temperatures of realizing that required precision is high, and shortcoming is that the frequency conversion response is slow; Another kind of mode is on superconducting resonator, to be connected in series varactor; Thereby influence the resonance frequency of resonator through the resistance value that adds electric installation change varactor; The difficulty of its realization is that the superconduction substrate surface is difficult to integrated discrete component, and design error is big, and shortcoming is the quality factor that the introducing of varactor can greatly reduce superconducting resonator; Thereby cause the filter Insertion Loss to become big, band-pass behavior descends.
Summary of the invention
The objective of the invention is to overcome the weak point of prior art, a kind of variable ratio frequency changer superconductive micro-strip line resonator is provided, have that quality factor height, frequency conversion scope are big, the variable ratio frequency changer number of spots is many, a FREQUENCY CONTROL advantage accurately, have the advantage that is easy to prepare simultaneously.
In order to reach the foregoing invention purpose; The present invention proposes a kind of variable ratio frequency changer superconductive micro-strip line resonator; Comprise upper strata superconducting resonator structure, lower floor's superconducting thin film, the dielectric substrate between this upper and lower two-layer superconductor; It is characterized in that said upper strata superconducting resonator structure comprises a continuous main strip line, one or more outside microstrip line and one or more switch; The one or both ends of main strip line and one or more outside microstrip line constitute interdigital coupled structure; Said interdigital coupled structure is that the port pectination bifurcation structure by the port pectination bifurcation structure of main strip line and one or more outside microstrip line intersects to form each other, does not contact each other between them; Said outside microstrip line through the two states or the combinations of states of one or more switch one or more outside microstrip line ground connection of control and disconnection, changes the resonance frequency of resonator through switch ground connection; Said outside microstrip line ground connection and conducting of breaking off the corresponding switch that links to each other with this outside microstrip line of two states difference and disconnection two states.The ground connection of the outside microstrip line of N piece and the various combination of off-state can be realized 2 Nth power kind frequency state at most.The variable ratio frequency changer superconductive micro-strip line resonator that the present invention proposes is because the main part of resonator is to be processed by superconductor, so the present invention has the high advantage of quality factor; Owing to can use the outside microstrip line of polylith, form different interdigital couple states, so the present invention has the advantage that the frequency conversion scope is big, the variable ratio frequency changer number of spots is many; Calculate the resonance frequency under the various states owing to can pass through electromagnetic field simulation software (like sonnet), so the present invention has FREQUENCY CONTROL advantage accurately; While is owing to the ease for operation of outside microstrip line switch earthing mode, so the present invention has the advantage that is easy to prepare.
In technique scheme, said main strip line is to be connected to form by linear pattern band section, or is connected to form by shaped form band section, or is connected and composed by linear pattern band section and the mixing of shaped form band section; The one or both ends of said main strip line are the pectination bifurcation structure; Said pectination bifurcation structure is the pectination bifurcation structure that the end by many linear pattern band sections, many broken line type band sections or many shaped form band sections is connected and forms, or the pectination bifurcation structure that an end of the two or three band section of mixing is connected and forms among many linear patterns, broken line type or the shaped forms.
In technique scheme; One end of a said outside microstrip line is the pectination bifurcation structure; Said pectination bifurcation structure is the pectination bifurcation structure that the end by many linear pattern band sections, many broken line type band sections or many shaped form band sections is connected and forms, or the pectination bifurcation structure that an end of the two or three band section of mixing is connected and forms among many linear patterns, broken line type or the shaped forms; The other end of said outside microstrip line is as the ground connection piece, and shape is straight line, broken line, circle, rectangle, arc, trapezoidal, triangle or irregular bulk, and this port is through switch ground connection;
In technique scheme, described switch is to realize conducting and the switch that breaks off two states.
In technique scheme, said switch is mechanical switch or electronic switch, or other can realize conducting and the switch that breaks off two states.
In technique scheme, said switch is connected dual mode realization conducting with not spot welding and breaks off two states through connecting with wire spot welding.
Characteristics of the present invention and effect
The variable ratio frequency changer superconductive micro-strip line resonator that the present invention proposes has the quality factor height, the frequency conversion scope is big, the variable ratio frequency changer number of spots is many, FREQUENCY CONTROL advantage accurately, has the advantage that is easy to prepare simultaneously.The variable-frequency band that variable ratio frequency changer superconductive micro-strip line resonator provided by the invention can be used for designing and make different joint numbers is logical, band resistance, high pass, low pass, many passbands super conductive filter.Therefore as long as the variable-frequency band that the superconducting resonator that employing the present invention proposes designs and makes is logical, be with resistance, high pass, low pass, many passbands super conductive filter all to belong to protection scope of the present invention.
Description of drawings
Fig. 1 is the basic structure schematic cross-section of general superconductive micro-strip line resonator;
Fig. 2 is the example structure sketch map of first kind of variable ratio frequency changer superconductive micro-strip line resonator of the present invention's proposition;
Fig. 2 a is the upper strata superconducting resonator architecture sketch map of present embodiment, and Fig. 2 b is the simulation frequency resonse characteristic of present embodiment.
Fig. 3 is the example structure sketch map of second kind of variable ratio frequency changer superconductive micro-strip line resonator of the present invention's proposition;
Fig. 3 a is the upper strata superconducting resonator architecture sketch map of present embodiment, and Fig. 3 b is the simulation frequency resonse characteristic of present embodiment.
Fig. 4 is the upper strata superconducting resonator junction structure sketch map of the third variable ratio frequency changer superconductive micro-strip line resonator embodiment of the present invention's proposition;
Fig. 5 is the upper strata superconducting resonator junction structure sketch map of the 4th kind of variable ratio frequency changer superconductive micro-strip line resonator embodiment of the present invention's proposition;
Fig. 6 is several kinds of possible structural representations of main strip line in a kind of variable ratio frequency changer superconductive micro-strip line resonator of the present invention's proposition;
Fig. 6 a is the main strip line that comprises linear pattern single-screw, single port linear pattern pectination bifurcation structure.
Fig. 6 b comprises the contrary main strip line along spiral, single port linear pattern pectination bifurcation structure of linear pattern.
Fig. 6 c is the main strip line that comprises curve, straight line mixed type single-screw, single port broken line type pectination bifurcation structure.
Fig. 6 d is the main strip line that comprises shaped form single-screw, single port linear pattern pectination bifurcation structure.
Fig. 6 e is the main strip line that comprises linear pattern spinning in and out, single port linear pattern pectination bifurcation structure.
Fig. 6 f is the main strip line that comprises curve, the spinning in and out of straight line mixed type, single port shaped form pectination bifurcation structure.
Fig. 6 g is the main strip line that comprises shaped form spinning in and out, single port linear pattern pectination bifurcation structure.
Fig. 6 h is the main strip line that comprises linear pattern spinning in and out, dual-port linear pattern pectination bifurcation structure.
Fig. 6 i is the main strip line that comprises curve, the spinning in and out of straight line mixed type, a port broken line type pectination bifurcation structure, another port shaped form pectination bifurcation structure.
Fig. 6 j is the main strip line that comprises shaped form spinning in and out, a port linear pattern pectination bifurcation structure, another port shaped form pectination bifurcation structure.
Fig. 7 is several kinds of possible structural representations of outside microstrip line in a kind of variable ratio frequency changer superconductive micro-strip line resonator of the present invention's proposition.
It is rectangle that Figure 71 a, 72a, 73a are respectively an end, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure.
It is del that Figure 71 b, 72b, 73b are respectively an end, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure.
It is equilateral triangle that Figure 71 c, 72c, 73c are respectively an end, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure.
It is T broken line shape that Figure 71 d, 72d, 73d are respectively an end, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure.
Figure 71 e, 72e, 73e are respectively an end for circular, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure.
Figure 71 f, 72f, 73f are respectively an end for semicircle, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure.
It is umbrella shape that Figure 71 g, 72g, 73g are respectively an end, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure.
It is irregular shape that Figure 71 h, 72h, 73h are respectively an end, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form bifurcated.
Embodiment
Below in conjunction with concrete embodiment the present invention is done further detailed description.
The variable ratio frequency changer superconductive micro-strip line resonator that the present invention proposes; Comprise upper strata superconducting resonator structure, lower floor's superconducting thin film, the dielectric substrate between this upper and lower two-layer superconductor; It is characterized in that; Said upper strata superconducting resonator structure comprises a continuous main strip line, one or more outside microstrip line and one or more switch; The one or both ends of main strip line and one or more outside microstrip line constitute interdigital coupled structure; Said interdigital coupled structure is that the port pectination bifurcation structure by the port pectination bifurcation structure of main strip line and one or more outside microstrip line intersects to form each other, does not contact each other between them; Said outside microstrip line through the two states or the combinations of states of one or more switch one or more outside microstrip line ground connection of control and disconnection, changes the resonance frequency of resonator through switch ground connection; Said outside microstrip line ground connection and conducting of breaking off the corresponding switch that links to each other with this outside microstrip line of two states difference and disconnection two states.
Lower floor of the present invention superconducting thin film and dielectric substrate and general superconductive micro-strip line resonator are basic identical; Distinguishing characteristics is a upper strata superconducting resonator structure; Upper strata of the present invention superconducting resonator structure can adopt multiple embodiment, illustrates through following various embodiments.
First embodiment
With reference to Fig. 1, present embodiment comprises upper strata superconducting resonator structure, lower floor's superconducting thin film, the dielectric substrate between this upper and lower two-layer superconductor.The upper strata superconducting resonator structure of present embodiment is as shown in Figure 2, comprises a continuous single-screw master strip line 25 (utilize a continuous microstrip line, this microstrip line is the superconductive micro-strip line); Main strip line from outside toward interior along counterclockwise constituting around eight circles; Bung flange is the rectangle bung flange, and the outline of outermost layer bung flange is long to be 8.26mm, and wide is 8.48mm; Live width is 0.16mm, adjacent bung flange equidistantly and spacing be 0.32mm.The external port of main strip line and an outside microstrip line 23 constitute interdigital coupled structure 24, interdigital length 2.4mm, width 0.16mm, 8 of interdigital radicals, interdigital degree of depth 1.84mm, interdigital gap 0.16mm.The ground connection block length 4.44mm of outside microstrip line, wide 1.72mm is connected to ground 21 through switch 22.The dielectric substrate employing relative dielectric constant of present embodiment is 9.7 magnesium oxide substrate, and upper and lower layer superconductor all adopts the YBCO high temperature superconducting materia.
Weldering is connected and is connected dual mode realization conducting and disconnection two states with not spot welding the switch 22 of present embodiment with ground end points to outside microstrip line ground connection piece through wire.
Fig. 2 b is the frequency response characteristic that present embodiment obtains through electromagnetic field simulation software Sonnet emulation; Fundamental resonance frequency 26 was 313.04MHz when switch " cut out " state; Fundamental resonance frequency 27 is 316.96MHz during switch " disconnection " state, and the two condition frequency differs 3.92MHz.
Second embodiment
With reference to Fig. 1, present embodiment comprises upper strata superconducting resonator structure, lower floor's superconducting thin film, the dielectric substrate between this upper and lower two-layer superconductor.The upper strata superconducting resonator structure of present embodiment comprises a continuous single-screw master strip line 37 (utilize a continuous microstrip line, this microstrip line is the superconductive micro-strip line) shown in Fig. 3 a; Main strip line from outside toward interior along counterclockwise constituting around eight circles; Bung flange is the rectangle bung flange, and the outline of outermost layer bung flange is long to be 8.26mm, and wide is 8.48mm; Live width is 0.16mm, adjacent bung flange equidistantly and spacing be 0.32mm.The external port of main strip line and two blocks of outside microstrip lines (utilize a continuous microstrip line, this microstrip line is the superconductive micro-strip line) constitute interdigital coupled structure 35,36 respectively.The interdigital length 2.44mm of wherein interdigital coupled structure 35, width 0.24mm, 6 of interdigital radicals, interdigital degree of depth 1.76mm, interdigital gap 0.08mm; The interdigital length 2.44mm of interdigital coupled structure 36, width 0.24mm, 3 of interdigital radicals, interdigital degree of depth 1.76mm, interdigital gap 0.08mm.The ground connection block length 3mm of outside microstrip line 33, wide 1.68mm; The ground connection block length 1.36mm of outside microstrip line 34, wide 1.68mm.The ground connection piece of two blocks of outside microstrip lines is connected to ground 31 through two switches 32 respectively.The dielectric substrate employing relative dielectric constant of present embodiment is 9.7 magnesium oxide substrate, and upper and lower layer superconductor all adopts the YBCO high temperature superconducting materia.
The model that two switches in the present embodiment all adopt Omron Corp to produce is the mechanical switch of " D3SH ".
Fig. 3 b is the frequency response characteristic that present embodiment obtains through electromagnetic field simulation software Sonnet emulation; 33 earthed switches " close " and 34 earthed switches when " closing " state fundamental resonance frequency 38 be 291.72MHz; 33 earthed switches " close " and during 34 earthed switches " disconnection " state fundamental resonance frequency 39 be 293.34MHz; Fundamental resonance frequency 310 was 296.44MHz when 33 earthed switches " disconnection " and 34 earthed switches " were closed " state; Fundamental resonance frequency 311 is 298.24MHz when 33 earthed switches " disconnection " and 34 earthed switches " disconnection " state, and 311 and 38 frequency interval is 6.52MHz.
The 3rd embodiment
With reference to Fig. 1, present embodiment comprises upper strata superconducting resonator structure, lower floor's superconducting thin film, the dielectric substrate between this upper and lower two-layer superconductor.The upper strata superconducting resonator structure of present embodiment is as shown in Figure 4, comprises a continuous contrary suitable spiral type master strip line 45 (utilize a continuous microstrip line, this microstrip line is the superconductive micro-strip line); Main strip line from outside toward interior along counterclockwise around four circles, clockwise around four circles, bung flange is the rectangle bung flange again; The outline of outermost layer bung flange is long to be 8mm; Wide is 8mm, and live width is 0.16mm, adjacent bung flange equidistantly and spacing be 0.24mm.The external port of main strip line and four blocks of outside microstrip lines 43 constitute interdigital coupled structure 44.The interdigital length 2.4mm of interdigital coupled structure 44, width 0.16mm, interdigital degree of depth 2.08mm, interdigital gap 0.16mm.The interdigital radical of first block of outside microstrip line is 8, and the interdigital radical of second block of outside microstrip line is 4, and the interdigital radical of the 3rd block of outside microstrip line is 2, and the interdigital radical of the 4th block of outside microstrip line is 1.The length of the ground connection piece of four blocks of outside microstrip lines is 0.48mm, and the wide 1.76mm that is is connected to ground 41 through switch 42 respectively.The dielectric substrate employing relative dielectric constant of present embodiment is 9.7 magnesium oxide substrate, and upper and lower layer superconductor all adopts the YBCO high temperature superconducting materia.
Four switches in the present embodiment all adopt diode to realize conducting and break off two states through powering up outward.
The 4th embodiment
With reference to Fig. 1, present embodiment comprises upper strata superconducting resonator structure, lower floor's superconducting thin film, the dielectric substrate between this upper and lower two-layer superconductor.The upper strata superconducting resonator structure of present embodiment is as shown in Figure 5, comprises a continuous spinning in and out type master strip line 55 (utilize a continuous microstrip line, this microstrip line is the superconductive micro-strip line); Main strip line from outside toward interior along counterclockwise around four circles, more clockwise by interior outward around four circles, bung flange is the rectangle bung flange; The outline of outermost layer bung flange is long to be 8.4mm; Wide is 7.76mm, and live width is 0.16mm, adjacent bung flange equidistantly and spacing be 0.24mm.The two ends of main strip line constitute interdigital coupled structure 54 and 56 with two blocks of outside microstrip lines 53 of size and 57 respectively.Interdigital coupled structure 54 and 56 interdigital length 2.4mm, width 0.16mm, interdigital degree of depth 1.76mm, interdigital gap 0.16mm.Wherein the interdigital radical of big outside microstrip line is 6, and the interdigital radical of little outside microstrip line is 3.The length of the ground connection piece of big outside microstrip line is 3mm, and wide is 1.68mm; The length of the ground connection piece of little outside microstrip line is 1.36mm, and wide is 1.68mm.The ground connection piece of four blocks of outside microstrip lines is connected to ground 51 and 59 through switch 52 and 58 respectively.The dielectric substrate employing relative dielectric constant of present embodiment is 9.7 magnesium oxide substrate, and upper and lower layer superconductor all adopts the YBCO high temperature superconducting materia.
Four switches in the present embodiment all adopt triode to realize conducting and break off two states through powering up outward.
Just the present invention will be described for example for the foregoing description, but the present invention is not limited thereto.Can on the basis of this embodiment, carry out various deformation, for example main strip line includes but not limited to the main strip line that comprises linear pattern single-screw, single port linear pattern pectination bifurcation structure among Fig. 6 a-6j; Comprise the contrary main strip line of linear pattern along spiral, single port linear pattern pectination bifurcation structure; The main strip line that comprises curve, straight line mixed type single-screw, single port broken line type pectination bifurcation structure; The main strip line that comprises shaped form single-screw, single port linear pattern pectination bifurcation structure; The main strip line that comprises linear pattern spinning in and out, single port linear pattern pectination bifurcation structure; The main strip line that comprises curve, the spinning in and out of straight line mixed type, single port shaped form pectination bifurcation structure; The main strip line that comprises shaped form spinning in and out, single port linear pattern pectination bifurcation structure; The main strip line that comprises linear pattern spinning in and out, dual-port linear pattern pectination bifurcation structure; The main strip line that comprises curve, the spinning in and out of straight line mixed type, a port broken line type pectination bifurcation structure, another port shaped form pectination bifurcation structure; The main strip line that comprises shaped form spinning in and out, a port linear pattern pectination bifurcation structure, another port shaped form pectination bifurcation structure; Outside microstrip line includes but not limited to that Figure 71 a is rectangle to 72h, Figure 73 a to the end among the 73h to 71h, Figure 72 a, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure; One end is a del, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure; One end is an equilateral triangle, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure; One end is a T broken line shape, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure; One end is circular, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure; One end is semicircle, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure; One end is a umbrella shape, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure; One end is irregular shape, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form bifurcated, and outside microstrip line wherein is through switch ground connection.
The present invention adopts stripline technique to realize; Upper strata of the present invention resonator structure and lower floor's conductor thin film are superconductor; Though selected the YBC0 high temperature superconducting materia in the foregoing description for use, can use low temperature superconducting material and other high temperature superconducting materias as required equally; Though selected magnesium oxide substrate in the foregoing description for use, can use the substrate of other materials such as lanthanum aluminate substrate, sapphire as required equally.These distortion also should belong to same design concept of the present invention, all should be within protection scope of the present invention.
Design work among the present invention utilizes electromagnetic field simulation software (like sonnet) to move on computers, concrete operation method reference software user service manual.Superconductive micro-strip line resonator among the present invention is made by conventional process, promptly by processing steps such as photoetching, etching, encapsulation, belongs to those skilled in the art's known technology.

Claims (6)

1. variable ratio frequency changer superconductive micro-strip line resonator; Comprise upper strata superconducting resonator structure, lower floor's superconducting thin film, the dielectric substrate between this upper and lower two-layer superconductor; It is characterized in that; Said upper strata superconducting resonator structure comprises a continuous main strip line, one or more outside microstrip line and one or more switch; The one or both ends of main strip line and one or more outside microstrip line constitute interdigital coupled structure; Said interdigital coupled structure is that the port pectination bifurcation structure by the port pectination bifurcation structure of main strip line and one or more outside microstrip line intersects to form each other, does not contact each other between them; Said outside microstrip line through the two states or the combinations of states of one or more switch one or more outside microstrip line ground connection of control and disconnection, changes the resonance frequency of resonator through switch ground connection; Said outside microstrip line ground connection and conducting of breaking off the corresponding switch that links to each other with this outside microstrip line of two states difference and disconnection two states.
2. variable ratio frequency changer superconductive micro-strip line resonator as claimed in claim 1; It is characterized in that; Said main strip line is to be connected to form by linear pattern band section, or is connected to form by shaped form band section, or is connected and composed by linear pattern band section and the mixing of shaped form band section; The one or both ends of said main strip line are the pectination bifurcation structure; Said pectination bifurcation structure is the pectination bifurcation structure that the end by many linear pattern band sections, many broken line type band sections or many shaped form band sections is connected and forms, or the pectination bifurcation structure that an end of the two or three band section of mixing is connected and forms among many linear patterns, broken line type or the shaped forms.
3. variable ratio frequency changer superconductive micro-strip line resonator as claimed in claim 1; It is characterized in that; One end of a said outside microstrip line is the pectination bifurcation structure; Said pectination bifurcation structure is the pectination bifurcation structure that the end by many linear pattern band sections, many broken line type band sections or many shaped form band sections is connected and forms, or the pectination bifurcation structure that an end of the two or three band section of mixing is connected and forms among many linear patterns, broken line type or the shaped forms; The other end shape of said outside microstrip line is straight line, broken line, circle, rectangle, arc, trapezoidal, triangle or irregular bulk, and this port is through switch ground connection.
4. like each described variable ratio frequency changer superconductive micro-strip line resonator among the claim 1-3, it is characterized in that described switch is to realize conducting and the switch that breaks off two states.
5. the variable ratio frequency changer superconductive micro-strip line resonator described in claim 4 is characterized in that said switch is mechanical switch or electronic switch, or other can realize conducting and the switch that breaks off two states.
6. the variable ratio frequency changer superconductive micro-strip line resonator described in claim 4 is characterized in that, said switch is connected dual mode realization conducting with not spot welding and breaks off two states through connecting with wire spot welding.
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CN102931339A (en) * 2012-11-02 2013-02-13 西南交通大学 Superconducting switch with two-sided yttrium barium copper oxide (YBCO) thin film structure
CN103682540A (en) * 2013-09-10 2014-03-26 清华大学 A symmetry controllable input/output coupling structure

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