CN102496764B - Variable frequency superconducting microstrip line resonator - Google Patents
Variable frequency superconducting microstrip line resonator Download PDFInfo
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- CN102496764B CN102496764B CN201110454264.0A CN201110454264A CN102496764B CN 102496764 B CN102496764 B CN 102496764B CN 201110454264 A CN201110454264 A CN 201110454264A CN 102496764 B CN102496764 B CN 102496764B
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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
Technical field
The invention belongs to microwave technical field, relate to a kind of variable frequency superconducting microstrip 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 of superconductive micro-strip line resonator composition has excellent filtering characteristic, the general basic composition that adopts the superconductive micro-strip line resonator that stripline technique realizes comprises upper strata superconducting resonator structure 11, lower floor's superconducting thin film 12, dielectric substrate 13 between this upper and lower two-layer superconductor, as shown in Figure 1.Wherein, upper strata resonator structure 11 and lower floor's conductor thin film are superconductor; Substrate can use other materials such as magnesium oxide substrate, lanthanum aluminate substrate, sapphire.Super conductive filter has obtained application very widely in microwave technical field in recent years, is particularly requiring the application in the fields such as high electronic countermeasures, satellite communication and radio astronomy significant to filtering characteristic.
Along with increasing microwave technology is in the deep application in each field, it is more and more intensive and complicated that microwave spectrum in space environment also becomes, and causes using the receiver performance of common metal filter or dielectric filter to be subject to same frequency range or the day by day serious interference of successive bands noise signal.In order to address this problem, increasing scientific research personnel invests development high-performance variable ratio frequency changer filter sight, in the time having noise jamming to occur in filter passband, and can initiatively filter is converted to another one have noisy passband work.In recent years, the research work in this field, various countries mainly concentrates in 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 resonator quality factor are not high, and filter loss is larger.
The problem of making 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 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: one is a slice dieelctric sheet that suspends above superconductive micro-strip line resonator, change dieelctric sheet hoverheight by mechanical movement method, thereby change the resonance frequency of superconducting resonator, the difficulty of its realization is to be difficult to realize the high micromachine control device of working at low temperatures of required precision, and shortcoming is that frequency conversion response is slow; Another kind of mode is on superconducting resonator, to be connected in series varactor, thereby affect the resonance frequency of resonator by the resistance value that power-up device changes varactor, the difficulty of its realization is that superconductor substrate surface is difficult to integrated discrete component, design error is large, shortcoming is the quality factor that the introducing of varactor can greatly reduce superconducting resonator, thereby cause filter Insertion Loss to become large, band-pass behavior declines.
Summary of the invention
The object of the invention is to overcome the weak point of prior art, a kind of variable frequency superconducting microstrip line resonator is provided, have that quality factor are high, frequency conversion scope is large, variable ratio frequency changer point quantity is many, FREQUENCY CONTROL advantage accurately, have advantages of simultaneously and be easy to prepare.
In order to reach foregoing invention object, the present invention proposes a kind of variable frequency superconducting microstrip line resonator, comprise upper strata superconducting resonator structure, lower floor's superconducting thin film, dielectric substrate between this upper and lower two-layer superconductor, it is characterized in that, described 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 form interdigital coupled structure, described interdigital coupled structure is mutually to be intersected to form by the port pectination bifurcation structure of the port pectination bifurcation structure of main strip line and one or more outside microstrip line, between them, does not mutually contact; Described outside microstrip line, by switch ground connection, by two states or the combinations of states of one or more outside microstrip line ground connection of one or more switch control and disconnection, changes the resonance frequency of resonator; Described outside microstrip line ground connection and the conducting and the disconnection two states that disconnect the two states switch that correspondence is connected with this outside microstrip line respectively.The outside ground connection of microstrip line of N piece and the various combination of off-state can be realized at most 2 Nth power kind frequency state.The variable frequency superconducting microstrip line resonator that the present invention proposes, because the main part of resonator is to be made up of superconductor, so that the present invention has advantages of quality factor is high; Owing to can using the outside microstrip line of polylith, form different interdigital couple states, so the present invention has advantages of that frequency conversion scope is large, variable ratio frequency changer point quantity is many; Owing to calculating the resonance frequency under various states by electromagnetic field simulation software (as sonnet), so the present invention has FREQUENCY CONTROL advantage accurately; Due to the ease for operation of outside microstrip line switch earthing mode, so having advantages of, the present invention is easy to prepare simultaneously.
In technique scheme, described 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 mixed and connected and composed by linear pattern band section and shaped form band section; The one or both ends of described main strip line are pectination bifurcation structure, described pectination bifurcation structure is by one end of many linear pattern band sections, many broken line type band sections or many shaped form band sections pectination bifurcation structure forming that is connected, or one end of the two or three band section of mixing pectination bifurcation structure forming that is connected among many linear patterns, broken line type or shaped forms.
In technique scheme, one end of a described outside microstrip line is pectination bifurcation structure, described pectination bifurcation structure is by one end of many linear pattern band sections, many broken line type band sections or many shaped form band sections pectination bifurcation structure forming that is connected, or one end of the two or three band section of mixing pectination bifurcation structure forming that is connected among many linear patterns, broken line type or shaped forms; The other end of described outside microstrip line is as earthing block, and shape is straight line, broken line, circle, rectangle, arc, trapezoidal, triangle or irregular bulk, and this port is by switch ground connection;
In technique scheme, described switch is the switch of realizing conducting and disconnecting two states.
In technique scheme, described switch is mechanical switch or electronic switch, or other switches that can realize conducting and disconnect two states.
In technique scheme, described switch is realized conducting and is disconnected two states by be connected two kinds of modes with not spot welding with wire spot welding connection.
Feature of the present invention and effect
The variable frequency superconducting microstrip line resonator that the present invention proposes, has that quality factor are high, frequency conversion scope is large, variable ratio frequency changer point quantity is many, FREQUENCY CONTROL advantage accurately, has advantages of simultaneously and is easy to prepare.Variable-frequency band that variable frequency superconducting microstrip 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 adopts the present invention to propose 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.
Brief description of the drawings
Fig. 1 is the basic structure schematic cross-section of general superconductive micro-strip line resonator;
Fig. 2 is the example structure schematic diagram of the first variable frequency superconducting microstrip line resonator of proposing of the present invention;
Fig. 2 a is the upper strata superconducting resonator structure structural representation of the present embodiment, the stimulation frequency resonse characteristic that Fig. 2 b is the present embodiment.
Fig. 3 is the example structure schematic diagram of the second variable frequency superconducting microstrip line resonator of proposing of the present invention;
Fig. 3 a is the upper strata superconducting resonator structure structural representation of the present embodiment, the stimulation frequency resonse characteristic that Fig. 3 b is the present embodiment.
Fig. 4 is the upper strata superconducting resonator junction structure schematic diagram of the third variable frequency superconducting microstrip line resonator embodiment of proposing of the present invention;
Fig. 5 is the upper strata superconducting resonator junction structure schematic diagram of the 4th kind of variable frequency superconducting microstrip line resonator embodiment proposing of the present invention;
Fig. 6 is several possible structural representations of main strip line in a kind of variable frequency superconducting microstrip line resonator of proposing of the present invention;
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 possible structural representations of outside microstrip line in a kind of variable frequency superconducting microstrip line resonator of proposing of the present invention.
It is rectangle that Figure 71 a, 72a, 73a are respectively one 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 one 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 one end, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure.
It is T fold-line-shaped that Figure 71 d, 72d, 73d are respectively one 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 one 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 one 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 one 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 one end, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form bifurcated.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
The variable frequency superconducting microstrip line resonator that the present invention proposes, comprise upper strata superconducting resonator structure, lower floor's superconducting thin film, dielectric substrate between this upper and lower two-layer superconductor, it is characterized in that, described 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 form interdigital coupled structure, described interdigital coupled structure is mutually to be intersected to form by the port pectination bifurcation structure of the port pectination bifurcation structure of main strip line and one or more outside microstrip line, between them, does not mutually contact; Described outside microstrip line, by switch ground connection, by two states or the combinations of states of one or more outside microstrip line ground connection of one or more switch control and disconnection, changes the resonance frequency of resonator; Described outside microstrip line ground connection and the conducting and the disconnection two states that disconnect the two states switch that correspondence is connected with this outside microstrip line respectively.
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 upper strata superconducting resonator structure, upper strata of the present invention superconducting resonator structure can adopt multiple embodiment, illustrates by various embodiments below.
The first embodiment
With reference to Fig. 1, the present embodiment comprises upper strata superconducting resonator structure, lower floor's superconducting thin film, dielectric substrate between this upper and lower two-layer superconductor.The upper strata superconducting resonator structure of the present embodiment as shown in Figure 2, comprise that a main strip line 25 of continuous single-screw (utilizes a continuous microstrip line, this microstrip line is superconductive micro-strip line), main strip line forms around eight circles toward interior in the counterclockwise direction from outer, bung flange is rectangle bung flange, and the outline length of outermost layer bung flange is 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 form 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 by switch 22.The dielectric substrate of the present embodiment adopts the magnesium oxide substrate that relative dielectric constant is 9.7, and upper and lower layer superconductor all adopts YBCO high temperature superconducting materia.
The switch 22 of the present embodiment by wire to outside microstrip line earthing block and ground end points soldered connect is connected with not spot welding two kinds of modes realize conducting and disconnection two states.
Fig. 2 b is the frequency response characteristic that the present embodiment obtains through electromagnetic field simulation software Sonnet emulation, when switch " cuts out " state, fundamental resonance frequency 26 is 313.04MHz, when switch "off" state, fundamental resonance frequency 27 is 316.96MHz, and two state frequencies differ 3.92MHz.
The second embodiment
With reference to Fig. 1, the present embodiment comprises upper strata superconducting resonator structure, lower floor's superconducting thin film, dielectric substrate between this upper and lower two-layer superconductor.The upper strata superconducting resonator structure of the present embodiment as shown in Figure 3 a, comprise that a main strip line 37 of continuous single-screw (utilizes a continuous microstrip line, this microstrip line is superconductive micro-strip line), main strip line forms around eight circles toward interior in the counterclockwise direction from outer, bung flange is rectangle bung flange, and the outline length of outermost layer bung flange is 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 superconductive micro-strip line) form respectively interdigital coupled structure 35,36.The wherein interdigital length 2.44mm of 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 earthing block of two blocks of outside microstrip lines is connected to ground 31 by two switches 32 respectively.The dielectric substrate of the present embodiment adopts the magnesium oxide substrate that relative dielectric constant is 9.7, and upper and lower layer superconductor all adopts YBCO high temperature superconducting materia.
Two switches in the present embodiment all adopt the mechanical switch that the model of Omron Corp's production is " D3SH ".
Fig. 3 b is the frequency response characteristic that the present embodiment obtains through electromagnetic field simulation software Sonnet emulation, when 33 earthed switches " cut out " and state " cut out " by 34 earthed switches, fundamental resonance frequency 38 is 291.72MHz, 33 earthed switches " close " and when 34 earthed switch "off" state fundamental resonance frequency 39 be 293.34MHz, when 33 earthed switch "off" and 34 earthed switches " are closed " state, fundamental resonance frequency 310 is 296.44MHz, when 33 earthed switch "off" and 34 earthed switch "off" state, fundamental resonance frequency 311 is 298.24MHz, 311 and 38 frequency interval is 6.52MHz.
The 3rd embodiment
With reference to Fig. 1, the present embodiment comprises upper strata superconducting resonator structure, lower floor's superconducting thin film, dielectric substrate between this upper and lower two-layer superconductor.The upper strata superconducting resonator structure of the present embodiment as shown in Figure 4, comprise that one continuous contraryly (is utilized a continuous microstrip line along the main strip line 45 of spiral type, this microstrip line is superconductive micro-strip line), main strip line is from outer toward interior in the counterclockwise direction around four circles, more clockwise around four circles, bung flange is rectangle bung flange, the outline length of outermost layer bung flange is 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 form 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 earthing block of four blocks of outside microstrip lines is 0.48mm, and the wide 1.76mm that is is connected to ground 41 by switch 42 respectively.The dielectric substrate of the present embodiment adopts the magnesium oxide substrate that relative dielectric constant is 9.7, and upper and lower layer superconductor all adopts YBCO high temperature superconducting materia.
Four switches in the present embodiment all adopt diode to realize conducting and disconnect two states by powering up outward.
The 4th embodiment
With reference to Fig. 1, the present embodiment comprises upper strata superconducting resonator structure, lower floor's superconducting thin film, dielectric substrate between this upper and lower two-layer superconductor.The upper strata superconducting resonator structure of the present embodiment as shown in Figure 5, comprise that a main strip line 55 of continuous spinning in and out type (utilizes a continuous microstrip line, this microstrip line is superconductive micro-strip line), main strip line is from outer toward interior in the counterclockwise direction around four circles, more clockwise by interior outward around four circles, bung flange is rectangle bung flange, the outline length of outermost layer bung flange is 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 form interdigital coupled structure 54 and 56 with two blocks of outside microstrip lines 53 and 57 of size respectively.The interdigital length 2.4mm of interdigital coupled structure 54 and 56, width 0.16mm, interdigital degree of depth 1.76mm, interdigital gap 0.16mm.Wherein the interdigital radical of large outside microstrip line is 6, and the interdigital radical of little outside microstrip line is 3.The length of the earthing block of large outside microstrip line is 3mm, and wide is 1.68mm; The length of the earthing block of little outside microstrip line is 1.36mm, and wide is 1.68mm.The earthing block of four blocks of outside microstrip lines is connected to ground 51 and 59 by switch 52 and 58 respectively.The dielectric substrate of the present embodiment adopts the magnesium oxide substrate that relative dielectric constant is 9.7, and upper and lower layer superconductor all adopts YBCO high temperature superconducting materia.
Four switches in the present embodiment all adopt triode to realize conducting and disconnect two states by powering up outward.
Just the present invention will be described for example for above-described embodiment, 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 in Fig. 6 a-6j; Comprise the contrary main strip line along spiral, single port linear pattern pectination bifurcation structure of linear pattern; Comprise the main strip line of curve, straight line mixed type single-screw, single port broken line type pectination bifurcation structure; Comprise the main strip line of shaped form single-screw, single port linear pattern pectination bifurcation structure; Comprise the main strip line of linear pattern spinning in and out, single port linear pattern pectination bifurcation structure; Comprise the main strip line of curve, the spinning in and out of straight line mixed type, single port shaped form pectination bifurcation structure; Comprise the main strip line of shaped form spinning in and out, single port linear pattern pectination bifurcation structure; Comprise the main strip line of linear pattern spinning in and out, dual-port linear pattern pectination bifurcation structure; Comprise the main strip line of 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; Comprise the main strip line of shaped form spinning in and out, a port linear pattern pectination bifurcation structure, another port shaped form pectination bifurcation structure, outside microstrip line include but not limited to Figure 71 a to 71h, Figure 72 a to 72h, Figure 73 a is rectangle to the one end in 73h, the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure; One end is del, and the other end is the outside microstrip line of linear pattern, broken line type, shaped form pectination bifurcation structure; One end is 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 T fold-line-shaped, 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 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 is wherein by 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, although selected YBC0 high temperature superconducting materia in above-described embodiment, can use equally as required low temperature superconducting material and other high temperature superconducting materias; Although selected magnesium oxide substrate in above-described embodiment, can use equally as required the substrate of other materials such as lanthanum aluminate substrate, sapphire.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 in the present invention utilizes electromagnetic field simulation software (as sonnet) to move on computers, concrete operation method reference software user service manual.Superconductive micro-strip line resonator in the present invention is made by conventional process, by processing steps such as photoetching, etching, encapsulation, belongs to those skilled in the art's known technology.
Claims (6)
1. a variable frequency superconducting microstrip line resonator, comprise upper strata superconducting resonator structure, lower floor's superconducting thin film, dielectric substrate between this upper strata superconducting resonator structure, lower floor's superconducting thin film, it is characterized in that, described 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 form interdigital coupled structure, described interdigital coupled structure is mutually to be intersected to form by the port pectination bifurcation structure of the port pectination bifurcation structure of main strip line and one or more outside microstrip line, between them, does not mutually contact; Described outside microstrip line, by switch ground connection, by two states or the combinations of states of one or more outside microstrip line ground connection of one or more switch control and disconnection, changes the resonance frequency of resonator; Described outside microstrip line ground connection and the conducting and the disconnection two states that disconnect the two states switch that correspondence is connected with this outside microstrip line respectively.
2. variable frequency superconducting microstrip line resonator as claimed in claim 1, it is characterized in that, described 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 mixed and connected and composed by linear pattern band section and shaped form band section; The one or both ends of described main strip line are pectination bifurcation structure, described pectination bifurcation structure is by one end of many linear pattern band sections, many broken line type band sections or many shaped form band sections pectination bifurcation structure forming that is connected, or one end of the two or three band section of mixing pectination bifurcation structure forming that is connected among many linear patterns, broken line type or shaped forms.
3. variable frequency superconducting microstrip line resonator as claimed in claim 1, it is characterized in that, one end of a described outside microstrip line is pectination bifurcation structure, described pectination bifurcation structure is by one end of many linear pattern band sections, many broken line type band sections or many shaped form band sections pectination bifurcation structure forming that is connected, or one end of the two or three band section of mixing pectination bifurcation structure forming that is connected among many linear patterns, broken line type or shaped forms; The other end shape of described outside microstrip line is straight line, broken line, circle, rectangle, arc, trapezoidal, triangle or irregular bulk, and this port is by switch ground connection.
4. the variable frequency superconducting microstrip line resonator as described in any one in claim 1-3, is characterized in that, described switch is the switch of realizing conducting and disconnecting two states.
5. variable frequency superconducting microstrip line resonator as described in claim 4, is characterized in that, described switch is mechanical switch or electronic switch, maybe can realize conducting and disconnect the switch of two states.
6. variable frequency superconducting microstrip line resonator as described in claim 4, is characterized in that, described switch is connected two kinds of modes and realizes conducting and disconnection two states by connecting with wire spot welding with not spot welding.
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| US7369010B2 (en) * | 2003-11-21 | 2008-05-06 | E. I. Du Pont De Nemours And Company | Laser trimming to tune the resonance frequency of a spiral resonator, the characteristics of a high temperature superconductor filter comprised of spiral resonators, or the resonance of a planar coil |
| CN1925212B (en) * | 2005-08-31 | 2010-05-12 | 中国科学院物理研究所 | Plane superconductive micro-strip resonator |
| CN1967933A (en) * | 2005-11-18 | 2007-05-23 | 中国科学院物理研究所 | A superconductive micro-strip resonantor |
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