CN203553320U - Efficient surface plasma element transmission line - Google Patents
Efficient surface plasma element transmission line Download PDFInfo
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- CN203553320U CN203553320U CN201320663762.0U CN201320663762U CN203553320U CN 203553320 U CN203553320 U CN 203553320U CN 201320663762 U CN201320663762 U CN 201320663762U CN 203553320 U CN203553320 U CN 203553320U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 239000004020 conductor Substances 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 37
- 230000000737 periodic effect Effects 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 9
- 238000004088 simulation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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- 238000001259 photo etching Methods 0.000 description 1
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Abstract
The invention discloses an efficient surface plasma element transmission line. The transmission line is printed on a dielectric substrate (III) and adopts a left-right symmetric and up-down symmetrical structure, wherein metal conductors (I) and arc-shaped metal conductors (II) on two sides of a port part of the transmission line are connected and located on upper and lower sides of a gradient aperiodic metal grating (V) and a middle metal conductor (IV); the middle metal conductor (IV), the gradient aperiodic metal grating (V) and a periodic metal grating (VI) of a main transmission part are connected into a whole sequentially; inward margins of the metal conductors (II) are arc lines (2); grooves with gradually increasing depth are formed in two sides of the aperiodic metal grating (V); and grooves identical in depth are formed in the surface of the periodic metal grating (VI). Efficient transmission of waves is realized by using single-cycle gratings and the flexibility of the microwave circuit design can be increased by using a coplanar waveguide structure. The transmission line is simple in structure and facilitates processing and integration.
Description
Technical field
The utility model relates to a kind of efficient surface plasma primitive transmission line structure, is specifically related to co-planar waveguide, gradual change coupling optical grating construction aperiodic and supports plasma primitive periodic optical grating structure, belongs to communication, integrated circuit and surface wave technical field.
Background technology
Artificial surfaces etc. are not subject to the restriction of diffraction limit from primitive, support single conductor to electromagnetic high efficiency of transmission, thereby can, for structure miniaturized device, at aspects such as sufacing and integrated circuits, have important application.Utilize and on dielectric surface, design optical grating construction aperiodic that depth of groove changes and realize the coupling that ripple is propagated, utilize the constant monocycle optical grating construction of depth of groove to carry out surface plasma propagation simultaneously, such device fabrication is convenient, is easy to integratedly, and efficiency of transmission is high.
Summary of the invention
Technical problem: the utility model object is to provide a kind of surface plasma high efficiency of transmission line being printed on dielectric-slab, and 50 ohm of two-conductor coplanar waveguide transmission lines of uniconductor plasma transmission line and tradition are mated, so that mutually integrated with traditional integrated circuit.This transmission line works in microwave frequency band.By the function on control metal grating structure further groove degree of depth aperiodic and metallic conductor border, realize the coupling of transmission line, design meets the surface wave transmission of operating frequency, utilizes monocycle groove optical grating construction transmission characteristic to realize the transmission of surface wave.
Technical scheme: the transmission line based on surface plasma of the present utility model, comprise that optical grating construction aperiodic that is carved with the constant monocycle metal grating structure of metal grating structure aperiodic, depth of groove that depth of groove is different, utilizes depth of groove to change being printed on dielectric-slab film mates the efficient coupling between guided wave and the plasma primitive of being supported by co-planar waveguide, utilizes the constant monocycle optical grating construction of depth of groove to realize single conductor surface plasma primitive efficient propagation.Concrete structure is:
This efficient surface plasma primitive transmission line, be printed on medium substrate, this transmission line is symmetrical, upper and lower symmetrical structure, wherein, in transmission line port part, the metallic conductor of both sides metallic conductor and arc shape is connected, and is positioned at the both sides up and down of gradual change metal grating aperiodic and intermetallic metal conductor, and the periodicity metal grating order of intermetallic metal conductor, gradual change metal grating aperiodic and main body hop is connected to become a whole; Wherein, the phase inner boundary of metallic conductor is camber line, and the both sides of aperiodic metal grating are the grooves that the degree of depth is deepened gradually, and periodically metal grating surface is provided with the groove that the degree of depth is consistent; By both sides metallic conductor and intermetallic metal conductor, form two-conductor transmission line-co-planar waveguide part; Metallic conductor and gradual change metal grating aperiodic by arc shape form coupling conversion portion; By periodicity metal grating, form single conductor-surface plasma base unit transmission line portions.
This transmission line port part is two-conductor line structure, supports guided wave mode.
This transmission line main body hop is the single conductor structure that is carved with periodic slots, support surface plasma primitive.
Beneficial effect: the utlity model has following advantage:
1. the utility model utilizes gradual change optical grating construction aperiodic to realize by conventional co-planar waveguide to the efficient coupling by single conductor optical grating construction first, has realized guided wave to efficient conversion and transmission between plasma primitive.
2. metallic conductor of the present utility model can be etched in a kind of thickness and approach zero be printed on medium substrate, has realized the coplanar propagation of transmission line, is carved with respectively the aperiodicity groove that the degree of depth changes according to certain rule; On another part metal tape, be carved with the periodicity groove that the degree of depth is single, size is little, and the length of cellular construction, height are much smaller than operation wavelength, and the thickness of type metal, much smaller than operation wavelength, can make ripple in its surperficial efficient propagation.
3. the utility model is made simply, and two ports are traditional two-conductor mutual encouragement waveguiding structures, and its impedance is 50 ohm, is convenient to mate integrated with traditional integrated circuit.
4. the utility model can, by the convergent-divergent of structural parameters, be applicable to microwave, millimeter wave and terahertz wave band.
Accompanying drawing explanation
Fig. 1 is enforcement structural representation of the present utility model;
Fig. 2 is I in Fig. 1, II, and IV, V, the partial enlarged drawing of VI, has in figure: depth of groove h, cycle are p, and the width of groove is a,
Fig. 3 is the utility model S parameters simulation and measured curve figure.
Embodiment
Referring to Fig. 1, transmission line is symmetrical structure, and input (IN) is that impedance is the co-planar waveguide of 50 ohm with input (OUT), can combine with traditional circuit.This co-planar waveguide is two-conductor structure, comprises HeII district, I district, and the gap between two conductors is g.
Referring to Fig. 2, in figure, marked adjustable parameter, comprise coupling conversion portion II district and V district, for two-conductor is transferred to the coupling conversion between uniconductor transmission, the degree of depth h of the each groove of groove aperiodic
1-h
8, the functional relation y=f (x) that recess width a, groove period p and metallic conductor border camber line are satisfied.Periodic grooves place, is the uniconductor transmission line of support surface plasma primitive, and its recess width a, groove period p and groove depth are consistent.
Referring to Fig. 3, in figure, provide the S parameter comparison of the simulation and experiment result of the actual sample processing.Can find out, experimental result is consistent with simulation result, S21 4-8GHz can guarantee-more than 1dB, S11 4-8GHz all-below 10dB, can realize very high efficiency of transmission.
Compounding period metal grating structure and monocycle metal grating structure that in the utility model, support matrix ground roll is propagated, according to working frequency range difference, can adopt different processing technologys as line cutting or photoetching.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appended claim and equivalent thereof.
Claims (3)
1. an efficient surface plasma primitive transmission line, be printed on medium substrate (III), it is characterized in that, this transmission line is symmetrical, upper and lower symmetrical structure, wherein, the metallic conductor (II) of both sides metallic conductor (I) and arc shape is connected, and is positioned at the both sides up and down of gradual change metal grating aperiodic (V) and intermetallic metal conductor (IV), and intermetallic metal conductor (IV), gradual change metal grating aperiodic (V) and periodicity metal grating (VI) order are connected to become a whole; Wherein, metallic conductor (II) to inner boundary, be camber line (2), the both sides of aperiodic metal grating (V) are inwardly the grooves that the degree of depth is deepened gradually, periodically metal grating (VI) surface is provided with the groove that the degree of depth is consistent; By both sides metallic conductor (I) and intermetallic metal conductor (IV), form two-conductor transmission line-co-planar waveguide part; Metallic conductor (II) and gradual change metal grating aperiodic (V) by arc shape form coupling conversion portion; By periodicity metal grating (VI), form single conductor-surface plasma base unit transmission line portions.
2. efficient surface plasma primitive transmission line according to claim 1, is characterized in that this transmission line port part is two-conductor line structure, supports guided wave mode.
3. efficient surface plasma primitive transmission line according to claim 1, is characterized in that this transmission line main body hop is the single conductor structure that is carved with periodic slots, support surface plasma primitive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663762.0U CN203553320U (en) | 2013-10-25 | 2013-10-25 | Efficient surface plasma element transmission line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320663762.0U CN203553320U (en) | 2013-10-25 | 2013-10-25 | Efficient surface plasma element transmission line |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531876A (en) * | 2013-10-25 | 2014-01-22 | 东南大学 | Efficient transmission line of surface plasmon |
| CN104157934A (en) * | 2014-07-21 | 2014-11-19 | 南京航空航天大学 | Ultra wide band plasma filter provided with artificial surface |
| CN104253294A (en) * | 2014-07-04 | 2014-12-31 | 南京航空航天大学 | Artificial surface plasmon field strength enhancer |
| CN104282969A (en) * | 2014-10-31 | 2015-01-14 | 中国计量学院 | Band-stop microstrip line filter |
| CN104852254A (en) * | 2015-04-13 | 2015-08-19 | 东南大学 | Broadband surface Plasmon radiator |
| CN104993203A (en) * | 2015-06-25 | 2015-10-21 | 南京航空航天大学 | Trap wave coplanar waveguide based on artificial surface plasmon |
| CN105119030A (en) * | 2015-09-17 | 2015-12-02 | 南京航空航天大学 | Ultra-wideband artificial surface Plasmon low-pass filter |
| CN110112513A (en) * | 2019-05-13 | 2019-08-09 | 电子科技大学 | Terahertz switch on a kind of broadband sheet based on tunable imitative surface plasma |
-
2013
- 2013-10-25 CN CN201320663762.0U patent/CN203553320U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531876A (en) * | 2013-10-25 | 2014-01-22 | 东南大学 | Efficient transmission line of surface plasmon |
| CN104253294B (en) * | 2014-07-04 | 2016-11-23 | 南京航空航天大学 | A kind of artificial surface plasma field intensity booster |
| CN104253294A (en) * | 2014-07-04 | 2014-12-31 | 南京航空航天大学 | Artificial surface plasmon field strength enhancer |
| CN104157934A (en) * | 2014-07-21 | 2014-11-19 | 南京航空航天大学 | Ultra wide band plasma filter provided with artificial surface |
| CN104282969A (en) * | 2014-10-31 | 2015-01-14 | 中国计量学院 | Band-stop microstrip line filter |
| CN104852254A (en) * | 2015-04-13 | 2015-08-19 | 东南大学 | Broadband surface Plasmon radiator |
| CN104852254B (en) * | 2015-04-13 | 2018-03-20 | 东南大学 | A kind of wideband surface phasmon radiator |
| CN104993203B (en) * | 2015-06-25 | 2018-06-26 | 南京航空航天大学 | A kind of trap co-planar waveguide based on artificial surface phasmon |
| CN104993203A (en) * | 2015-06-25 | 2015-10-21 | 南京航空航天大学 | Trap wave coplanar waveguide based on artificial surface plasmon |
| CN105119030A (en) * | 2015-09-17 | 2015-12-02 | 南京航空航天大学 | Ultra-wideband artificial surface Plasmon low-pass filter |
| CN105119030B (en) * | 2015-09-17 | 2018-06-26 | 南京航空航天大学 | A kind of ultra wide band artificial surface plasmon low-pass filter |
| CN110112513A (en) * | 2019-05-13 | 2019-08-09 | 电子科技大学 | Terahertz switch on a kind of broadband sheet based on tunable imitative surface plasma |
| CN110112513B (en) * | 2019-05-13 | 2021-08-06 | 电子科技大学 | Tunable surface plasma-simulated broadband on-chip terahertz switch |
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Granted publication date: 20140416 |