CN101090173A - Small antenna of SFC - Google Patents

Small antenna of SFC Download PDF

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Publication number
CN101090173A
CN101090173A CN 200710104517 CN200710104517A CN101090173A CN 101090173 A CN101090173 A CN 101090173A CN 200710104517 CN200710104517 CN 200710104517 CN 200710104517 A CN200710104517 A CN 200710104517A CN 101090173 A CN101090173 A CN 101090173A
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antenna
sfc
curve
slot
peano
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CN101090173B (en
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卡雷斯·旁特·巴利亚达
埃杜阿德·让·路易斯·罗赞
加梅·安格拉·普罗斯
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Fractus SA
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Fractus SA
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Abstract

This invention relates to a new geometrical structure and defines its SFC geometric structure, which can be used in molding part antennas and reduces size of an antenna relative to the current technology or makes traditional antennas of the same size operate at even lower frequency with a given fixed size.

Description

Small antenna of SFC
The application is a Chinese patent application number 00818542.5, and the applying date is on January 19th, 2000, and denomination of invention is divided an application for the patent application case of " small antenna of SFC ".
Technical field
Relate generally to of the present invention reduces the new antenna of size according to novel geometry, and curved geometric arrangement is called space filling curve (SFC).In the time of in antenna can be installed in the space littler than operation wavelength, this antenna is called small size antenna.More particularly, be that benchmark is categorized as small size antenna with antenna with the radian sphere.The radian sphere is that radius equals the imaginary sphere face of operation wavelength divided by 2 π; According to wavelength, in the time of in antenna can be installed in described radian sphere, this antenna is called small size antenna.
Background technology
The present invention has determined a kind of novel geometry, i.e. space filling curve (SFC) geometry, and this geometry is used for the moulding section antenna.Utilize this innovative techniques, compared with prior art, can reduce the size of antenna, in other words, compare with the traditional antenna of same size, the antenna of given fixed dimension can more worked under the low frequency.
The present invention can be applied to the communications field, and more particularly, the present invention can be applied to design the antenna that reduces size.
In middle 1940s, H.Wheeler and L.J.Chu have done some from theory to small size antenna and have limited substantially.They think that mainly small size antenna should have high quality factor (Q), because compare with radiant power, the additional area of antenna has a large amount of reactance capacities.This high quality factor can produce narrow bandwidth, and in fact, the basic principle that obtains according to this theory is that the specific dimensions small size antenna is applied given maximum bandwidth.
About this phenomenon, well-known, the characteristic of small size antenna is to have big input reactance (capacitive or inductive), therefore must utilize external matching circuit or structure/loaded circuit or structure that it is compensated.This also means, is difficult to resonant antenna is encapsulated in the little space with respect to resonance wavelength.Other characteristic of small size antenna is that its radiation resistance is little, efficient is low.
Searching can have huge commercial interest by the structure that effective radiation is carried out in little space, particularly at mobile communication equipment (cellular phone, honeycomb fashion beep-pager, portable computer and digital processing unit, here just list and give some instances) in the environment, wherein require the size of portable set little and in light weight.According to R.C.Hansen (R.C.Hansen, " FundamentalLimitations on Antennas ", Proc.IEEE, vol.69, no.2, February 1981), the performance of small size antenna depends on it and effectively uses around the ability of the interior I of the empty radian sphere of antenna with the space.
Summary of the invention
According to the present invention, introduce one group of novel geometry that is called as space filling curve (space-filling curve) (hereinafter to be referred as SFC) and be used for design and structure small size antenna, can improve the performance (for example: linear monopole antenna, dipole antenna and hoop antenna and square loop antenna) of other traditional antenna that illustrates in the prior art like this.
Some geometry that the present invention describes is that a few figure place scholars such as Giusepe Peano and DavidHilbert produce in the Study on Geometry process of twentieth century.In all described situations, the research of these curves being done according to mathematical terms always is not applied to the engineering application.
Usually, utilize dimension (D) to characterize very complex geometry curve and structure that the present invention describes.About dimension, the different mathematical definition of many kinds is arranged, but in the present invention, utilize square frame counting dimension (those of skill in the art of mathematical theory aspect are well-known) to characterize a series of designs.The those of skill in the art of mathematical theory aspect can notice, can select to utilize Iterated Function System (IFS), Multireduction Copy Machine (MRCM) or some space filling curve of Networked Multireduction Copy Machine (MRCM) algorithm construction, as mentioned above.
Main points of the present invention are part antenna (for example: the part arm of dipole antenna, sticking patch annular, the slot in the slot aerial, the circular periphery in the loop aerial, the loudspeaker section of box horn or the reflector periphery in the reflector antenna of part arm, the sticking patch formula antenna of unipole antenna at least) at least is shaped to space filling curve, promptly big with respect to physical length, but the curve little with respect to the area that can comprise this curve.Or rather, below be the definition of space filling curve: have 10 sections curves that link together by this way and form at least, so that the every section section of being adjacent forms certain angle, promptly there is not a pair of adjacent segment can form bigger straight section, and the aperiodicity curve definitions that wherein and if only if is made of at least 10 linkage sections should the cycle and when not having a pair of described adjacent linkage section to determine longer straightway, along the fixed in space rectilinear direction, curve has the selectivity cycle.In addition, in any case design this SFC, it intersects (promptly entire curve can be arranged as closed curve or annular, but the each several part of curve but not becoming closed ring) with own any point outside starting point and terminating point never.Space filling curve can be arranged on plane or the curved surface, and because have the turning between each section, so the physical length of this curve is always than any length in the same zone (surface) that is suitable for described space filling curve.In addition, for the structure of the correct moulding small size antenna according to the present invention, each section of SFC curve must be than 1/10th weak points of free space operation wavelength.
According to forming process and curved geometric arrangement, in theory, can design certain endless SFC, it is characterized in that the Haussdorf dimension is greater than its topological dimension.That is to say, learn according to traditional euclidean geometry, it has been generally acknowledged that curve is a dimensional object all the time, yet, spiral and its physical length when very long in height of curve, this curve trends towards filling the part surface at its place, in this case, (perhaps is that it is approximate at least by this curve, utilize square frame counting (box-counting) algorithm) can calculate the Haussdorf dimension, and result value is bigger than 1.Can not construct the endless curve of this theory with physical method, but can propose they are carried out the SFC design.Fig. 2 and curve 8 and 17 shown in Figure 5 are some examples of this SFC, and they are near the desirable endless curve of D=2 dimension.
In the physics forming process of antenna, adopt the advantage of SFC curve to have aspect two:
(a) given particular job frequency or wavelength then with respect to prior art, can reduce the size of described SFC antenna.
(b) physical size of given SFC antenna, then compared with prior art, described SFC antenna can be worked under lower frequency.
Description of drawings
Fig. 1 illustrates some special circumstances of SFC curve.From virgin curve (2), can form other curve (1), (3) and (4) with 10 linkage sections.Below this particular curve series is called the SZ curve.
Fig. 2 illustrates two prior art sweeps and by the periodically mutual comparison between the curves of two SFC of SZ curve construction shown in Figure 1;
Fig. 3 illustrates the particular arrangement of SFC antenna, and it comprises dipole antenna in the tree-like configuration of difference, and wherein each arm in two arm is fully shaped to SFC curve (1).
Fig. 4 illustrates other special circumstances of SFC antenna, and they are included on the unipole antenna.
Fig. 5 illustrates the example of SFC slot aerial, wherein slot is shaped to SFC shape shown in Figure 1.
Fig. 6 illustrates another group SFC curve (15-20) that produces according to the Hilbert curve, and following they is called the Hilbert curve; In order to compare, standard, non-SFC curve are shown in (14).
Fig. 7 illustrates another example according to the SFC slot aerial of SFC curve (17) shown in Figure 6.
Fig. 8 illustrates another group SFC curve (24,25,26,27), below they is called the ZZ curve; In order to compare, traditional right angle sawtooth curve (23) is shown.
Fig. 9 is illustrated in the lead-line configuration (top) based on curve (25) loop aerial; Be to go up printing loop aerial 29 below in dielectric substrate (10).
Figure 10 illustrates the slot aerial based on SFC shown in Figure 8 (25).
Figure 11 illustrates sticking patch formula antenna, wherein according to its sticking patch annular of SFC (25) moulding.
Figure 12 illustrates aperture antenna, wherein goes up realization opening (33) at conductive structure or superconducting structure (31), utilizes the described opening of SFC (25) moulding.
Figure 13 is illustrated in the sticking patch formula antenna that has opening on the sticking patch annular based on SFC (25).
Figure 14 illustrates another specific example based on the SFC series of curves of Giusepe Peano curve (41,42,43).
Figure 15 illustrates the sticking patch formula antenna that has based on the SFC slot of SFC (41).
Figure 16 illustrates leaky-pipe antenna, and wherein rectangular waveguide (47) has a sidewall to have SFC curve (41) slot.
Figure 17 illustrates box horn, wherein according to the opening and the section of SFC (25) moulding loudspeaker.
Figure 18 illustrates the reflector of reflector antenna, and the annular of wherein said reflector is formed as SFC (25).
Figure 19 illustrates the serial SFC curve (51,52,53) based on Giusepe Peano curve; In order to compare, illustrate only by 9 sections non-SFC curves that form.
Figure 20 illustrates another serial SFC curve (55,56,57,58); In order to compare, illustrate only by 5 sections non-SFC curves (54) that constitute.
Figure 21 illustrates two examples of the SFC annular (59,60) that is made of SFC (57).
Figure 22 is illustrated in this serial SFC curve (61,62,63,64) that is called the HilbertZZ curve.
Figure 23 is illustrated in this serial SFC curve (66,67,68) that is called the Peanodec curve; In order to compare, illustrate only by 9 sections non-SFC curves (65) that constitute.
Be illustrated in the serial SFC curve (70,71,72) that this is called the Peanoinc curve as 24; In order to compare, illustrate only by 9 sections non-SFC curves (69) that constitute.
Figure 25 is illustrated in this serial SFC curve (73,74,75) that is called the PeanoZZ curve; In order to compare, illustrate only by 9 sections non-SFC curves (23) that constitute.
Embodiment
Fig. 1 and Fig. 2 illustrate some examples of SFC curve.Curve chart among Fig. 1 (1), (3) and (4) illustrate 3 SFC curve examples that are called as the SZ curve.In order to compare, curve chart (2) is so illustrate because it only comprises 6 sections curves that do not belong to the SFC curve.Curve chart among Fig. 2 (7) and (8) illustrate two other specific example of the SFC curve that comprises SFC curve (1), formed by the periodicity emphasis reciprocating cutter.Importantly be noted that the example of these SFC curves and periodically, the essential difference between the crooked non-SFC curve (for example curve shown in curve chart (5) and the curve chart (6) among Fig. 2).Although curve (5) and (6) are by constituting more than 10 sections, but in fact, will they to regard as along rectilinear direction (horizontal direction) be that the motion of periodic and definite cycle or repetitive is less than 10 sections (cycle in the curve chart (5) only comprises 4 sections, and the cycle in the curve (6) comprise 9 sections), they have run counter to the SFC curve definitions that the present invention introduces.In fact, the SFC curve is more complicated and longer length is encapsulated in the littler space; This is true to be that the short fact combines (lacking than 1/10th of free space operation wavelength, as of the presently claimed invention) aspect electric with constituting every section of the SFC curve, reduce aspect the antenna size extremely important.In addition, in small design sky line process, the grade that obtains the employed bender of special SFC curve of the present invention is extremely important.
Fig. 3 illustrates the preferred embodiment of SFC antenna.These three curve charts illustrate the difference configuration of same basic dipole.The two-arm antenna dipole of being constructed comprises two current-carrying parts or superconductive part, and each part is shaped to the SFC curve respectively.For the sake of brevity, and do not lose generality again, select special SFC curve (SZ curve shown in Figure 1 (1)), for example, can substitute yet and use other SFC curve shown in Fig. 1,2,6,8,14,19,20,21,22,23,24 or 25 at this.Two of two arms inputs (9) that form dipole near plug tip.Input (9) is illustrated as conducting ring or superconducting ring, still, obviously, for the those of skill in the art in the present technique field, also this input can be shaped to following any other figure, as long as with respect to operation wavelength, they keep little just passable.In addition, thereby can rotate by different way and the radiation characteristic of accurate adjustment input impedance of turning dipole arm or antenna, for example, polarity.Fig. 3 also illustrates another preferred embodiment of SFC dipole, wherein goes up printing conductive SFC arm and superconduction SFC arm in dielectric substrate (10); When the SFC curve was long, according to cost and mechanical robustness, the method was convenient especially.Well-known any printed circuit manufacturing technology all can be applied to printing SFC curvilinear figure on dielectric substrate.For example, described dielectric substrate can be glass mat, based on the substrate of polytetrafluoroethylene (Cuclad for example ) or other standard radio frequency and microwave substrate (for example: Rogers 4003 Or Kapton ).If it is interior to send or to receive the electromagnetic wave of radio, TV, cellular phone (GSM 900, GSM 1800, UMTS) or other communication service that antenna is installed in the vehicles (for example: car, train or aircraft), then dielectric substrate can only be the part of glass pane.Certainly, can also the input of dipole connect or integrated balanced-unbalanced network with the CURRENT DISTRIBUTION between two dipole arm of balance.
Another preferred embodiment of SFC antenna is unipole antenna configuration as shown in Figure 4.In this case, a dipole arm is by conduction balancing network or superconduction balancing network or ground plate (12) formation.Even the part metals structure of cell-phone shell car, train can be as the ground balancing network.As usually in the prior art unipole antenna, for example, utilize transmission line (11) excitation ground and unipole antenna arm (at this, with SFC curve (1) expression arm, but also can be with any other SFC curve replacement).Described transmission line is made of two conductors, and a conductor links to each other with grounded counterpoise, and another conductor links to each other with the point of SFC conductive structure or SFC superconducting structure.In curve chart shown in Figure 4, coaxial cable (11) is as the special shell of transmission line, and still, obviously, the those of skill in the art in the present technique field can also adopt other transmission line to encourage unipole antenna.After circuit shown in Figure 3, optionally the SFC curve is printed on the dielectric substrate (10).
For example, shown in Fig. 5,7 and 10, slot aerial is another preferred embodiment of SFC antenna.In Fig. 5, two connect SFC curve (at figure shown in Figure 1 (1) afterwards) formation slot or gap, and this slot and gap are printed on conductive plate or the superconductive plate (13).For example, this plate can be the plate, transparent conductive film (for example: be deposited in be used on the windowpane prevent that car inner is by the film of infrared radiation) on the printed circuit board (PCB) configuration medium substrate or only be the part metals structure of cell-phone, car, train, steamer or aircraft.Motivational techniques can be any well-known methods of using in the conventional slot antenna, and this does not belong to flesh and blood of the present invention.In all described three accompanying drawings, by slot, utilize an one conductor to link to each other, coaxial cable (11) active antenna that its another conductor links to each other with the other end of this plate with an end of conductive plate.For example, also can use microstrip transmission line, and not use coaxial cable.
For the several conversion examples to the antenna of above-mentioned substantial principle realization according to the present invention describe, Fig. 7 illustrates similar example, wherein utilizes another curve (curve (17) in the Hilbert series) to replace.Note that neither that in Fig. 5 also not in Fig. 7, slot arrives the edge of conductive plate, but in another embodiment, can also design the edge that slot arrives described plate, and described plate is divided into two independent conductive plates.
Figure 10 illustrates another possibility embodiment of slot SFC antenna.It also is the slot aerial of closed loop configurations mode.For example, by 4 SFC gaps after SFC (25) figure in the connection layout 8, can construct this ring (obviously, the flesh and blood according to the present invention can utilize other SFC curve to replace).Closed loop is determined the conducting island that centered on by conductive plate or superconductive plate or the edge on superconduction island as a result.Utilize well-known conventional art can encourage this slot; For example, can use coaxial cable, one of its external conductor is connected to the external conductive plate, and its inner conductor is connected to circumjacent inner conductive island, SFC gap.In addition, for example, this plate can be the plate, transparent conductive film (for example: be deposited in be used on the windowpane prevent that car inner is by the film of infrared radiation) on the printed circuit board (PCB) configuration medium substrate or only be the part metals structure of cell-phone, car, train, steamer or aircraft.This slot is can be only approaching but be that slot between non-coplane conducting island and the conductive plate forms by two.For example, this can select to center on conductor on the dielectric layer surface and on another surface of described substrate by the inner conductive island is installed in, and utilizes physical method to realize.
Certainly, the slot configuration is not a sole mode of realizing the SFC loop aerial.Sealing SFC curve by superconductor or electric conducting material manufacturing can be used to realize lead SFC loop aerial, shown in another preferred embodiment just as shown in Figure 9.In this case, the part curve is disconnected, for example, the input (9) of two loop aerials of end formation as a result of curve.Can also select annular is printed on the dielectric substrate (10).If the employing dielectric substrate, then by etching benchmark SFC figure on described substrate, the structural medium antenna, the dielectric constant of the described substrate of permittivity ratio of described medium is big.
Figure 11 illustrates another preferred embodiment.It has conductive patch or the superconduction sticking patch (30) (in these special circumstances that adopt SFC (25), obviously can also utilize other SFC curve to replace) that characterizes the SFC annular on sticking patch formula antenna.The annular of sticking patch formula antenna belongs to substantial portion of the present invention, for example, conforms to as the traditional sticking patch formula of remainder and other antenna of antenna, and sticking patch formula antenna comprises: conductive earth plate or superconduction ground plate (31) or grounded counterpoise; Conductive patch or superconduction sticking patch are parallel to described ground plate or grounded counterpoise.Interval between sticking patch and the ground wire is usually less than (but being not limited to) quarter-wave.Low loss dielectric substrate (10) (for example: glass fibre, such as Culad  polytetrafluoroethylsubstrate substrate or such as other commercially available material of Rogers  4003) can be arranged between described sticking patch and the grounded counterpoise.Any well-known method that the antenna feedback method can adopt prior art sticking patch formula antenna to use, for example: requiring the input impedance point, its external conductor links to each other with ground plate, the coaxial cable that its inner conductor links to each other with sticking patch (certainly, also can adopt comprise be positioned on the sticking patch, around coaxial tie point or around the canonical transformation example of the capacitive gaps of the condenser armature that is arranged on the distance parallel, links to each other with the inner conductor of coaxial cable with sticking patch, or the like).Utilize capacitive character to be connected to sticking patch and be positioned at the band (perhaps in another embodiment, utilizing the band be arranged under the ground plate, link to each other with sticking patch by slot) of certain distance under the sticking patch, the same ground plate of microstrip transmission line and antenna duplexer.Even have the microstrip transmission line and a sticking patch coplane of this band.All these mechanism are well-known in the prior art, and do not belong to flesh and blood of the present invention.Flesh and blood of the present invention is the antenna pattern (the SFC annular of sticking patch) in this case, i.e. that can reduce antenna size with respect to prior art arrangement.
Figure 13 and Figure 15 illustrate other preferred embodiment that disposes the SFC antenna equally based on sticking patch.They are included in and have polygon sticking patch (30) on traditional sticking patch formula antenna (even square, triangle, pentagon, hexagon, rectangle are circular, at this only for so several examples), have the SFC curve in moulding gap on sticking patch.This SFC line can form slot or tooth trace (44) (as shown in figure 15) on sticking patch, therefore this mode can reduce antenna size and can introduce new resonance frequency to the multiband running, perhaps in a further advantageous embodiment, SFC curve (for example (25)) is determined the periphery (as shown in figure 13) of sticking patch (30) upper shed (33).With respect to fixing sticking patch situation, this opening obviously helps to reduce by first resonance frequency of sticking patch, helps significantly to reduce antenna size like this.Certainly, described two kinds of configurations, promptly SFC slot situation and SFC open condition can be used as sticking patch (30) in SFC annular sticking patch formula antenna, and be for example, shown in Figure 11.
So far, the those of skill in the art in the present technique field understand what essential scope of the present invention is, and can same SFC geometrical principle be applied in all well-known prior art arrangement with novel manner.Figure 12,16,17 and 18 illustrates more many cases.
Figure 12 illustrates another preferred embodiment of SFC antenna.Its main points are, on aperture antenna, its SFC periphery characterizes described opening, go up the described opening of impression at conductive earthing face or grounded counterpoise (34), the main points of the described ground plane of grounded counterpoise are, for example, be positioned on the part-structure of the wall of waveguide or cavity resonator or the vehicles (for example car, truck, aircraft or tank).Utilize conventional art can enter this opening, for example: coaxial cable (11), perhaps planar microstrip or strip line transmission line only give some instances here.
Figure 16 illustrates another preferred embodiment, wherein on the wall of the waveguide of arbitrary cross section (47) to SFC curve (41) joint-cutting.Utilize the size packed attribute advantage of SFC curve, can realize this mode, and form the joint-cutting waveguide array.
Figure 17 illustrates another preferred embodiment, and in this case, in box horn (48), the cross section of antenna is SFC curve (25).In this case, the size that benefit not only comes from the SFC geometry reduces attribute, and comes from the broadband character that can realize by the tubaeform cross section of moulding., these primitive technologies are developed with the form of Ridge box horn.Under described prior art situation, at least two relative walls of loudspeaker, introduce a right angle tooth, can improve the bandwidth of antenna.With respect to prior art, the better structure of size of SFC curve helps to improve bandwidth.
Figure 18 illustrates the typical antenna configuration that utilizes new new method that disclose, that utilize SFC curve moulding reflector annular, i.e. reflector antenna (49).According to application process or feed method, reflector can be the plane, also can be curved surface (for example, in the reflective array configuration, the SFC reflector preferentially is smooth, and in the focus fed parabola reflector, the plane that the SFC curve centers on preferentially is bent near parabolic).In addition, in the SFC reflecting surface, utilize the SFC curve can also set up frequency-selecting face (FSS), in this case, SFC is used for moulding repetitive pattern on FSS.In described FSS configuration, with respect to prior art, use the SFC unit to have advantage, can make and have more tight spacing between the described unit because reduce the size of SFC figure.During aerial array in the SFC unit is used for the antenna-reflected array, also can realize same advantage.
According to several preferred embodiments of the present invention, the principle of the invention is illustrated and describes, obviously, in this concept, the those of skill in the art in the present technique field can easily be provided with it and details is adjusted.And all are adjusted and all use the described essential scope of the present invention of claims.

Claims (19)

  1. One kind at least one of its parts be formed as the antenna of space filling curve (SFC), described SFC is defined as comprising at least 10 curves that are connected, it is characterized in that, described section 1/10th weak points than free space operation wavelength, and spatially they are arranged by this way, be that described adjacent linkage section does not form another bigger straight section, wherein except optionally intersecting on the curve head, described section does not cross one another, the turning that every pair of described adjacent segment is formed becomes circle or level and smooth, and the aperiodicity curve definitions one-period that wherein and if only if is made of at least 10 linkage sections and when not having a pair of described adjacent linkage section to determine longer straightway, along the fixed in space rectilinear direction, this Curve selection ground has this cycle.
  2. 2. antenna according to claim 1, it is characterized in that, at least one of its parts are formed as space filling curve (SFC), the square frame counting dimension that wherein said SFC characterizes is greater than 1, the slope of described square frame counting dimension as the double logarithmic chart straight line portion calculated, wherein this straight line portion roughly is defined as the straightway of double logarithmic chart trunnion axis 8 multiple proportions examples.
  3. 3. antenna according to claim 1 and 2 is characterized in that, one of its parts are formed as Hilbert or Peano curve at least.
  4. 4. antenna according to claim 1 and 2 is characterized in that, one of its parts are formed as SZ, ZZ, HilbertZZ, Peanoinc, Peanodec or PeanoZZ curve at least.
  5. 5. according to the arbitrary described antenna of aforesaid right requirement, it is characterized in that, this antenna comprises: the network between radiating element and input connector or transmission line, described network can be matching network, impedance transformer network, balanced-unbalanced switching network, FL-network, duplexer network or antenna multicoupler network.
  6. 6. according to the arbitrary described antenna of aforesaid right requirement, it is characterized in that, this antenna is the dipole antenna that comprises two conductive arms or superconduction arm, and wherein at least a portion with at least one arm in the dipole antenna arm is shaped to SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ.
  7. 7. according to the arbitrary described antenna of aforesaid right requirement, it is characterized in that, this antenna is the unipole antenna that comprises radiation arm or grounded counterpoise, and wherein at least a portion with described radiation arm is shaped to SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve.
  8. 8. according to the arbitrary described antenna of claim 1 to 5, it is characterized in that, this antenna is for comprising the slot aerial of conducting surface or superconduction face at least, wherein said face comprises slot, wherein said slot can be formed as SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve, and wherein can utilize dielectric substrate to fill and lead up described slot, and can be the wall of waveguide comprising the described conducting surface or the superconduction face of described slot, the wall of cavity resonator, conductive film on the vehicles glass pane, or the part metals structure of the vehicles.
  9. 9. according to the arbitrary described antenna of claim 1 to 5, it is characterized in that, this antenna is the loop aerial that comprises lead and superconducting line, wherein forms going between to small part of annular and can be formed as SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve.
  10. 10. according to the arbitrary described antenna of claim 1 to 5, it is characterized in that, this antenna is the antenna that comprises conducting surface or superconduction face, has impression slot or gap annular on described conducting surface or superconduction face, and wherein part slot or gap annular can be formed as SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve.
  11. 11. arbitrary described antenna according to claim 1 to 5, it is characterized in that, this antenna is to comprise conductive earthing face or superconduction ground plane at least and be parallel to the conductive patch of described ground plane or the sticking patch formula antenna of superconduction sticking patch, and wherein the sticking patch annular can be formed as SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve.
  12. 12. arbitrary described antenna according to claim 1 to 5, it is characterized in that, this antenna is a sticking patch formula antenna, wherein slot on the sticking patch or opening can be shaped to SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve.
  13. 13. arbitrary described antenna according to claim 1 to 5, it is characterized in that, this antenna is the aperture antenna that comprises conducting surface or superconduction face at least and be positioned at the opening on described, wherein open circumferential can be shaped to SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve, and described conducting surface or superconduction face comprising opening or slot can be the walls of waveguide, the wall of cavity resonator, transparent conductive film on the vehicles glass pane, or the part metals structure of the vehicles, wherein can utilize dielectric substrate to fill and lead up described slot.
  14. 14. arbitrary described antenna according to claim 1 to 5, it is characterized in that, this antenna is a box horn, wherein the loudspeaker cross section can be shaped to SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve.
  15. 15. arbitrary described antenna according to claim 1 to 5, it is characterized in that, this antenna is a reflector antenna, wherein the reflector periphery can be shaped to SFC, Hilbert, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve.
  16. 16. arbitrary described antenna according to claim 1 to 5, it is characterized in that, this antenna is as frequency-selecting face (FSS), this FSS comprises conducting surface or superconduction face, wherein this face is impressed at least one slot, described slot can be shaped to SFC, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve.
  17. 17. arbitrary described antenna according to claim 1 to 5, it is characterized in that, this antenna is as frequency-selecting face (FSS), described FSS comprises the medium face, wherein utilize well-known any manufacturing technology printing conductive structure or superconducting structure on the medium face in the prior art, the shape of described print structure partly is shaped to SFC, Peano, HilbertZZ, SZ, Peanoinc, Peanodec, PeanoZZ or ZZ curve at least.
  18. 18. require described one group of space fill antenna according to aforesaid right, it is characterized in that, have at least two antennas to move to cover the different communication business in the described antenna sets with different frequency, wherein utilize distribution network or duplexer network, respectively simultaneously to the described antenna feed signal of any above-mentioned collocation form.
  19. 19. require described antenna according to aforesaid right, it is characterized in that its size is less than the size with triangle, rectangle, circle, pentagon or hexagon antenna in identical one pole, dipole, sticking patch, slot, opening, loudspeaker or the reflector arrangement of same frequency operation.
CN2007101045175A 2000-01-19 2000-01-19 Small antenna of SFC Ceased CN101090173B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103296403A (en) * 2012-02-29 2013-09-11 深圳光启创新技术有限公司 Metamaterial antenna housing and antenna system
CN104600435A (en) * 2014-12-27 2015-05-06 广东盛路通信科技股份有限公司 Fractal media resonant antenna used as paraboloidal feed source
CN108028693A (en) * 2015-06-25 2018-05-11 艾尔斯潘网络公司 Antenna equipment and in the antenna equipment perform space become zero method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE284080T1 (en) * 1995-08-09 2004-12-15 Fractal Antenna Systems Inc FRACTAL ANTENNAS, RESONATORS AND LOAD ELEMENTS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103296403A (en) * 2012-02-29 2013-09-11 深圳光启创新技术有限公司 Metamaterial antenna housing and antenna system
CN103296403B (en) * 2012-02-29 2017-03-29 深圳光启创新技术有限公司 Metamaterial antenna cover and antenna system
CN104600435A (en) * 2014-12-27 2015-05-06 广东盛路通信科技股份有限公司 Fractal media resonant antenna used as paraboloidal feed source
CN108028693A (en) * 2015-06-25 2018-05-11 艾尔斯潘网络公司 Antenna equipment and in the antenna equipment perform space become zero method
CN108028693B (en) * 2015-06-25 2021-03-19 艾尔斯潘网络公司 Antenna device and method for performing spatial nulling within the antenna device

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