CN106229640A - double-layer wideband microstrip antenna - Google Patents
double-layer wideband microstrip antenna Download PDFInfo
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- CN106229640A CN106229640A CN201610793279.2A CN201610793279A CN106229640A CN 106229640 A CN106229640 A CN 106229640A CN 201610793279 A CN201610793279 A CN 201610793279A CN 106229640 A CN106229640 A CN 106229640A
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- 230000004888 barrier function Effects 0.000 claims abstract description 40
- 230000005855 radiation Effects 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims description 21
- 229920003023 plastic Polymers 0.000 claims description 21
- 230000008878 coupling Effects 0.000 abstract description 8
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 59
- 238000013461 design Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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Abstract
The invention discloses a kind of double-layer wideband microstrip antenna, including: top dielectric plate；Layer dielectric plate, be arranged in parallel with top dielectric plate, and is provided with air-gap between layer dielectric plate and top dielectric plate；Being attached at two split collars of top dielectric plate upper surface, the breach of two split collars is oppositely arranged；Split collar is provided with two slotted eyes isolated by barrier strand, and barrier strand both sides are provided with UNICOM's breach passage outside split collar, and one end UNICOM of slotted eye constitutes the breach of split collar in breach passage, slotted eye with breach passage；Radiation fin, is attached at layer dielectric plate upper surface, is provided with distributing point；Barrier strand is positioned on the axis of symmetry of radiation fin in the projection of layer dielectric plate；And metal floor, it is attached at layer dielectric plate lower surface.The disclosure solve existing microstrip antenna because of mutual coupling wayward, and be difficult to multiple modes of resonance are merged the problem producing wide working band.
Description
Technical field
It relates to field of antenna, in particular it relates to a kind of loading multi-resonant coating being applied to WIFI or WLAN
Double-layer wideband microstrip antenna.
Background technology
The growth of Modern wireless data business requires broadband communications, and thus broad-band antenna becomes as wireless system unit
The research interest of people.The advantages such as it is low that microstrip antenna has section, lightweight, and easy and printed circuit technique is integrated, for existing
For broadband wireless communications, there is important effect.Use multilayer technique design microstrip antenna can be effectively increased microstrip antenna designs
Degree of freedom, convenient set multiple technologies, in individual antenna, such as fluting, load Meta Materials, aperture-coupled feed, near-field coupling, add
Carry multi-resmator etc., thus obtain the antenna with various performance.But multi-layer microstrip antenna is still limited by conventional microstrip antenna
High Q feature, its bandwidth of operation is difficult to broadening.For this restriction, use Compact frequency selective surface (FSS), artificial magnetic conductor
(AMC), Meta Materials (MTMs) unit/structure etc., as the cover layer of multi-layer microstrip antenna, can improve microstrip antenna bandwidth or
Strengthen its gain, directivity.
In report about the multi-layer microstrip antenna of band air-gap, coating loads single-layer metal structure and is typically only capable to tribute
Offering a resonant frequency/pattern, the single layer structure that simultaneously can produce two modes of resonance has no report, and by multiple resonant modes
The working band that formula merges generation wide is challenging, because there may be strong mutual coupling between resonant mode.
Simple check choma or complementary split collar have a wide range of applications in antennas as resonator, Meta Materials.Micro-in multilamellar
In band Antenna Design, split collar by magnetic, electric field excitation shows has negative pcrmeability and/or dielectric-constant property so that its
At aspects such as antenna high-gain, high directivity, wave beam focusing, there is researching value.In having been reported, typical case's split collar/complementation is split
Choma can be used for the dual band designs of multi-layer microstrip antenna, but rarely about the research report of the Wide-Band Design.
Summary of the invention
The purpose of the disclosure is to provide a kind of double-layer wideband microstrip antenna, and this double-layer wideband microstrip antenna is used for solving existing
Microstrip antenna because of mutual coupling wayward, and be difficult to multiple modes of resonance are merged the problem producing wide working band.
To achieve these goals, the disclosure provides a kind of double-layer wideband microstrip antenna, including:
Top dielectric plate；
Layer dielectric plate, be arranged in parallel with described top dielectric plate, and described layer dielectric plate and described top dielectric plate
Between be provided with air-gap；
Being attached at two split collars of described top dielectric plate upper surface, the breach of two described split collars is oppositely arranged；
Described split collar is provided with two slotted eyes isolated by barrier strand, and described barrier strand both sides are provided with UNICOM outside described split collar
Breach passage, one end UNICOM of described slotted eye in described breach passage, described slotted eye and described breach passage constitute described in split
The breach of choma；
Radiation fin, is attached at described layer dielectric plate upper surface, is provided with distributing point；Described barrier strand is situated between in described lower floor
The projection of scutum is positioned on the axis of symmetry of described radiation fin；And
Metal floor, is attached at described layer dielectric plate lower surface.
Alternatively, described split collar is semicircle, and described slotted eye is arcuate groove；
Described split collar includes:
Outer arcuate plate, is outward extended with described barrier strand in the middle part of the inward flange of described outer arcuate plate；
Two arc plates, the two ends of described outer arcuate plate are connected to two described arc plates；Described arcuate groove
Between described outer arcuate plate and described arc plate, described breach passage is positioned at described arc plate and described barrier strand
Between.
Alternatively, described arc plate includes the first end being connected to described outer arcuate plate and relative to described first end
Second end；Described second end is outward extended with the channel plate parallel with described barrier strand, and described breach passage is positioned at described logical
Between guidance tape and described barrier strand.
Alternatively, the spacing of two described split collars is 1.5mm to 4mm；Split described in two described split collars one
The outer radius of the described outer arcuate plate of choma is 25mm to 27mm, and inside radius is 13mm to 15mm；The outer half of described arc plate
Footpath is 8mm to 10mm, and inside radius is 6mm to 8mm；The a length of 12mm to 15mm of described barrier strand, width be 1.5mm extremely
2.5mm；The a length of 5mm to 6.5mm of described channel plate, width is 1.5mm to 2.5mm；
The outer radius of the described outer arcuate plate of another the described split collar in two described split collars is 27mm to 29mm,
Inside radius is 13mm to 15mm；The outer radius of described arc plate is 10mm to 12mm, and inside radius is 8mm to 10mm；Described every
From a length of 10mm to 12mm of band, width is 1.5mm to 2.5mm；The a length of 5mm to 6.5mm of described channel plate, width
For 1.5mm to 2.5mm.
Alternatively, described radiation fin is oval, and described barrier strand is positioned at described in the projection of described layer dielectric plate
On the major axis of radiation fin, described distributing point is positioned at the major axis of described ellipse and deviates from the oval center of circle.
Alternatively, the long axis length of described ellipse is 35mm to 40mm, the minor axis length of described ellipse be 22mm extremely
27mm, described distributing point is 6mm to 8mm with the distance in the described oval center of circle.
Alternatively, it is provided with plastic support post between the corner that described top dielectric plate is corresponding with described layer dielectric plate.
Alternatively, described plastic support post includes supporting section and is formed at the linkage section at supporting section two ends, described supporting section
Diameter more than the diameter of described linkage section, two described linkage sections are each passed through described top dielectric plate and described layer dielectric
Plate also fastens via plastic nut.
Alternatively, a diameter of 3mm to 6mm of described plastic support post, upper strata described in the centre-to-centre spacing of described plastic support post
Dielectric-slab or the edge 5mm to 15mm of described layer dielectric plate；The height of described plastic nut is 2mm to 4mm.
Alternatively, the thickness of described top dielectric plate is 0.5mm to 2mm, the thickness of described layer dielectric plate be 1mm extremely
3mm；Described top dielectric plate and described layer dielectric plate are Rectangular Enclosure with Participating Media plate, a length of 100mm of described Rectangular Enclosure with Participating Media plate
To 150mm, width is 100mm to 150mm；The height of described air-gap is 3mm to 6mm；The thickness of described metal floor is
0.01mm to 0.03mm.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect:
By loading two split collars at top dielectric plate upper surface, through being attached at the spoke of described layer dielectric plate upper surface
Penetrate sheet near field (specially electric field) excitation so that each split collar generation resonance and produce two modes of resonance；Further, due to every
Two same size slotted eyes of split collar have been isolated so that each split collar each produces two resonance that frequency is identical from band
Pattern, and mutual coupling degree between the mode of resonance of two split collars generations is reduced, and then each split collar is produced
Between two modes of resonance that frequency is identical, the most common effect produces the resonant mode of an enhancing；Then, the resonant mode of enhancing with
The resonant mode of radiation fin merges and forms working band wide near 2.4GHz, solves existing microstrip antenna and is difficult to because of mutual coupling
Control, and be difficult to multiple modes of resonance are merged the problem producing wide working band.
Other feature and advantage of the disclosure will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the disclosure, and constitutes the part of description, with following tool
Body embodiment is used for explaining the disclosure together, but is not intended that restriction of this disclosure.In the accompanying drawings:
Fig. 1 is the structural representation according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment.
Fig. 2 is the side view according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment.
Fig. 3 is the top view according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment.
Fig. 4 is the amplification signal of the split collar according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment
Figure.
Fig. 5 is the vertical view of the layer dielectric plate according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment
Figure.
Fig. 6 is the S parameter curve chart according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment.
Fig. 7 a to Fig. 7 d be according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment at resonance frequency
Antenna pattern.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they are only with the most appended
The example of the apparatus and method that some aspects that described in detail in claims, the disclosure are consistent.
Refer to Fig. 1, Fig. 2 and Fig. 4, Fig. 1 is according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment
Structural representation, Fig. 2 is the side view according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment, and Fig. 4 is
The enlarged diagram of the split collar according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment.
As shown in Figure 1, Figure 2 and Figure 4, described double-layer wideband microstrip antenna includes:
Top dielectric plate 1；
Layer dielectric plate 2, be arranged in parallel with described top dielectric plate 1, and described layer dielectric plate 2 and described top dielectric
Air-gap 10 it is provided with between plate 1；
It is attached at two split collars 3,4 of described top dielectric plate 1 upper surface, the breach phase of two described split collars 3,4
To setting；Described split collar 3,4 is provided with by two slotted eyes 35,45 of barrier strand 30,40 isolation, described barrier strand 30,40
Both sides are provided with UNICOM's breach passage 34,44 outside described split collar, and one end UNICOM of described slotted eye 35,45 leads in described breach
Road 34,44, described slotted eye 35,45 and described breach passage 34,44 constitute the breach of described split collar 3,4；Two split collars 3,4
Constitute the cover layer of disclosure double-layer wideband microstrip antenna；
Radiation fin 5, is attached at described layer dielectric plate 2 upper surface, is provided with distributing point 6；Described barrier strand 30,40 is in institute
The projection stating layer dielectric plate 2 is positioned on the axis of symmetry of described radiation fin 5；And
Metal floor 7, is attached at described layer dielectric plate 2 lower surface.
Alternatively, refer to Fig. 1 and Fig. 3, Fig. 3 is according to a kind of double-layer wideband micro-strip sky shown in an exemplary embodiment
The top view of line, barrier strand 30 and barrier strand 40 are respectively positioned on described radiation fin 5 in the projection of described layer dielectric plate 2.
As shown in Figure 3 and Figure 4, split collar 3 and split collar 4 are attached at described top dielectric plate upper surface in symmetry.Isolation
Band 30 and barrier strand 40 are located on the same line in the projection of described layer dielectric plate 2, and split collar 3 and split collar 4 are at X
On axle symmetrical.Spacing G between split collar 3 and split collar 41For 1.5mm to 4mm.Alternatively, split collar 3 and split collar 4
Between spacing G1For 2.8mm.
Wherein, length L of barrier strand 303For 12mm to 15mm, width W2For 1.5mm to 2.5mm；Barrier strand 40
Length L4For 10mm to 12mm, the width of barrier strand 40 is identical with the width of barrier strand 30.Alternatively, barrier strand 30
Length L3For 13.9mm, length L of barrier strand 404For 10.9mm, barrier strand 40 and the width W of barrier strand 302For 2mm.
As shown in Figure 4, described split collar 3,4 is semicircle, and described slotted eye 35,45 is arcuate groove.Described split collar 3,4 wraps
Include: outer arcuate plate 31,41, in the middle part of the inward flange of described outer arcuate plate 31,41, be outward extended with described barrier strand 30,40；With
And two arc plates 32,42, the two ends of described outer arcuate plate 31,41 are connected to two described arc plates 32,42；Institute
State arcuate groove 35,45 between described outer arcuate plate 31,41 and described arc plate 32,42,34,44, described breach passage
Between described arc plate 32,42 and described barrier strand 30,40.
Continue referring to Fig. 4, the first end that described arc plate 32,42 includes being connected to described outer arcuate plate 31,41 and
The second end relative to described first end；Described second end is outward extended with and the parallel channel plate of described barrier strand 30,40
33,43, described breach passage 34,44 is between described channel plate 33,43 and described barrier strand 30,40.Wherein, described logical
Length L of guidance tape 335For 5mm to 6.5mm, width is 1.5mm to 2.5mm；Length L of described channel plate 436For 5mm extremely
6.5mm, width is 1.5mm to 2.5mm.Alternatively, length L of described channel plate 335For 5.5mm, the length of described channel plate 43
Degree L6For 5.7mm, the width of the width of described channel plate 33 and described channel plate 43 is for being 2mm.
Alternatively, outer radius R of outer arcuate plate 311For 25mm to 27mm, inside radius R3For 13mm to 15mm；Described inner arc
Outer radius R of shape plate 325For 8mm to 10mm, inside radius R7For 6mm to 8mm.Outer radius R of outer arcuate plate 412For 27mm extremely
29mm, inside radius R4For 13mm to 15mm；Outer radius R of described arc plate 426For 10mm to 12mm, inside radius R8For 8mm extremely
10mm。
Alternatively, R1For 26mm, R2For 28mm, R3For 14mm, R4For 14mm, R5For 9mm, R6For 11mm, R7For 7mm, R8For
9mm。
Refer to Fig. 3 and Fig. 5, Fig. 5 is according under a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment
The top view of layer dielectric-slab.As shown in Figure 3 and Figure 5, described radiation fin 5 is oval, and described barrier strand 30,40 is under described
The projection of layer dielectric-slab 2 is positioned on the major axis of described radiation fin 5, and described distributing point 6 is positioned at the major axis of described ellipse and partially
From in the oval center of circle.Alternatively, described distributing point 6 is positioned at barrier strand 30 in the projection of described layer dielectric plate 2.
Wherein, the longitudinal axis L of described ellipse2A length of 35mm to 40mm, the short axle W of described ellipse1A length of 22mm is extremely
27mm, described distributing point 6 and distance D in the described oval center of circle1For 6mm to 8mm.Alternatively, the longitudinal axis L of described ellipse2Length
For 37.2mm, the short axle W of described ellipse1A length of 25.2mm, described distributing point 6 and distance D in the described oval center of circle1For
7mm。
Refer to Fig. 1 and Fig. 2, between the corner that described top dielectric plate 1 is corresponding with described layer dielectric plate 2, be provided with plastics
Support column 7.Described plastic support post 7 includes supporting section and is formed at the linkage section at supporting section two ends, the diameter of described supporting section
More than the diameter of described linkage section, two described linkage sections are each passed through described top dielectric plate 1 and described layer dielectric plate 2 also
Fasten via plastic nut 9.
Refer to Fig. 1 and Fig. 2, a diameter of 3mm to 6mm of described plastic support post 7, the center of described plastic support post 7
Away from described top dielectric plate 1 or the edge 5mm to 15mm of described layer dielectric plate 2；The height of described plastic nut 9 be 2mm extremely
4mm.Alternatively, a diameter of 3mm of described plastic support post 7, top dielectric plate 1 described in the centre-to-centre spacing of described plastic support post 7
Or the edge 6mm of described layer dielectric plate 2；The height of described plastic nut 9 is 2.4mm.
Refer to Fig. 1 and Fig. 2, described top dielectric plate 1 and described layer dielectric plate 2 and be Rectangular Enclosure with Participating Media plate, material used
Material is Rogers Duroid 4350B, its relative dielectric constant 3.48, loss angle tangent 0.0037.Described layer dielectric plate 2
Lower surface all applies metal copper foil as metal floor 7, and the thickness of described metal floor 7 is 0.01mm to 0.03mm.Optional
Ground, described metal floor 7 thickness is 0.018mm.Described Rectangular Enclosure with Participating Media plate is in length of side L of long cross direction1Identical, its length of side L1For
100mm to 150mm.Alternatively, length of side L of described Rectangular Enclosure with Participating Media plate1For 132mm.
Refer to Fig. 1 and Fig. 2, the thickness H of described top dielectric plate 11For 0.5mm to 2mm, the thickness of described layer dielectric plate
Degree H3For 1mm to 3mm；Described air-gap H2Height be 3mm to 6mm.Alternatively, the thickness H of described top dielectric plate 11For
1mm, the thickness H of described layer dielectric plate3For 1.5mm；Described air-gap H2Height be 4mm.
After completing above-mentioned initial designs, use high-frequency electromagnetic simulation software HFSS13.0 to carry out simulation analysis, pass through
Parameters size is obtained as shown in the table after simulation optimization:
Table 1 disclosure each parameters optimal size table
According to above-mentioned parameter, use the HFSS broadband to the designed loading multi-resonant coating being applied to WIFI or WLAN
The reflection coefficient of Two--Layer Microstrip Antenna | S11| characterisitic parameter carries out simulation analysis, and its analysis result is as follows:
Fig. 6 is the S parameter curve chart according to a kind of double-layer wideband microstrip antenna shown in an exemplary embodiment.By Fig. 6
Understand, the antenna that emulation obtains | S11| <-10dB frequency range is 2.34-2.46GHz, bandwidth 120MHz, fractional bandwidth 5%.Frequently
Carrying interior three resonant frequencies is 2.35GHz, 2.4GHz, 2.45GHz, at three Frequency points | S11| value is maintained near-20dB.Wherein
Lowest resonant frequency 2.35GHz is determined by split collar 3, and the highest resonant frequency 2.45GHz is determined by split collar 4, intermediate harmonic frequency
Rate 2.4GHz is mainly determined by oval radiation fin 5.Actual measurement antenna | S11| <-10dB frequency range is 2.32 2.42GHz, bandwidth
For 100MHz, fractional bandwidth is 4.2%, and in working band, three resonance frequencies are respectively 2.33GHz, 2.38GHz, 2.41GHz, its
Corresponding | S11| it is respectively less than-16dB.Simulation result relatively, the center operating frequency of actual measurement is to low frequency wonder about 30MHz, mainly
Because caused by the effective dielectric constant slightly difference of the antenna that the dielectric constant of emulation used medium plate is processed with reality.
It is micro-according to a kind of double-layer wideband shown in an exemplary embodiment with continued reference to Fig. 7 a to Fig. 7 d, Fig. 7 a to Fig. 7 d
With antenna antenna pattern at resonance frequency.As shown in Figure 7 a to 7 d, record at each self-resonance frequency respectively.Antenna is imitated
The very radiation gain at resonance frequency 2.35GHz, 2.4GHz is respectively 7.16dBi, 8.34dBi, and surveys at resonance frequency
The radiation gain of 2.33GHz, 2.38GHz is 5.14dBi, 5.92dBi.Actual measurement emulation relatively has the gain of 2dB to decline, mainly
Because the foozle of actual two-layered medium plate.Knowable to observing, the antenna gain of actual measurement has relatively large backward radiation, mainly
It is because caused by the foozle of actual feed section.It addition, the impedance bandwidth of described antenna is relative to not loading the ellipse of coating
Circular Microstrip Antennas optimum situation has the extension of 5 times, and gain has the raising of 1dB.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect:
By loading two split collars at top dielectric plate upper surface, through being attached at the spoke of described layer dielectric plate upper surface
Penetrate sheet near field (specially electric field) excitation so that each split collar generation resonance and produce two modes of resonance；Further, due to every
Two same size slotted eyes of split collar have been isolated so that each split collar each produces two resonance that frequency is identical from band
Pattern, and mutual coupling degree between the mode of resonance of two split collars generations is reduced, and then each split collar is produced
Between two modes of resonance that frequency is identical, the most common effect produces the resonant mode of an enhancing；Then, the resonant mode of enhancing with
The resonant mode of radiation fin merges and forms working band wide near 2.4GHz, solves existing microstrip antenna and is difficult to because of mutual coupling
Control, and be difficult to multiple modes of resonance are merged the problem producing wide working band.
The preferred implementation of the disclosure is described in detail above in association with accompanying drawing, but, the disclosure is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the disclosure, multiple letter can be carried out with technical scheme of this disclosure
Monotropic type, these simple variant belong to the protection domain of the disclosure.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the disclosure, as long as it is without prejudice to this
Disclosed thought, it should be considered as disclosure disclosure of that equally.
Claims (10)
1. a double-layer wideband microstrip antenna, it is characterised in that including:
Top dielectric plate；
Layer dielectric plate, be arranged in parallel with described top dielectric plate, and between described layer dielectric plate and described top dielectric plate
It is provided with air-gap；
Being attached at two split collars of described top dielectric plate upper surface, the breach of two described split collars is oppositely arranged；Described
Split collar is provided with two slotted eyes isolated by barrier strand, and described barrier strand both sides are provided with UNICOM's splitting outside described split collar
Mouth passage, one end UNICOM of described slotted eye constitutes described split collar in described breach passage, described slotted eye with described breach passage
Breach；
Radiation fin, is attached at described layer dielectric plate upper surface, is provided with distributing point；Described barrier strand is at described layer dielectric plate
Projection be positioned on the axis of symmetry of described radiation fin；And
Metal floor, is attached at described layer dielectric plate lower surface.
Double-layer wideband microstrip antenna the most according to claim 1, it is characterised in that described split collar is semicircle, described
Slotted eye is arcuate groove；
Described split collar includes:
Outer arcuate plate, is outward extended with described barrier strand in the middle part of the inward flange of described outer arcuate plate；And
Two arc plates, the two ends of described outer arcuate plate are connected to two described arc plates；Described arcuate groove is positioned at
Between described outer arcuate plate and described arc plate, described breach passage be positioned at described arc plate and described barrier strand it
Between.
Double-layer wideband microstrip antenna the most according to claim 2, it is characterised in that described arc plate includes being connected to institute
State the first end of outer arcuate plate and relative to the second end of described first end；Described second end is outward extended with and described isolating bar
With parallel channel plate, described breach passage is between described channel plate and described barrier strand.
Double-layer wideband microstrip antenna the most according to claim 3, it is characterised in that the spacing of two described split collars is
1.5mm to 4mm；
The outer radius of the described outer arcuate plate of a described split collar in two described split collars is 25mm to 27mm, inside radius
For 13mm to 15mm；The outer radius of described arc plate is 8mm to 10mm, and inside radius is 6mm to 8mm；Described barrier strand
A length of 12mm to 15mm, width is 1.5mm to 2.5mm；The a length of 5mm to 6.5mm of described channel plate, width is 1.5mm
To 2.5mm；
The outer radius of the described outer arcuate plate of another the described split collar in two described split collars is 27mm to 29mm, interior half
Footpath is 13mm to 15mm；The outer radius of described arc plate is 10mm to 12mm, and inside radius is 8mm to 10mm；Described isolating bar
The a length of 10mm to 12mm of band, width is 1.5mm to 2.5mm；The a length of 5mm to 6.5mm of described channel plate, width is
1.5mm to 2.5mm.
Double-layer wideband microstrip antenna the most according to claim 1, it is characterised in that described radiation fin is oval, described
Barrier strand is positioned on the major axis of described radiation fin in the projection of described layer dielectric plate, and described distributing point is positioned at described ellipse
Major axis at and deviate from the oval center of circle.
Double-layer wideband microstrip antenna the most according to claim 5, it is characterised in that the long axis length of described ellipse is
35mm to 40mm, the minor axis length of described ellipse is 22mm to 27mm, and described distributing point with the distance in the described oval center of circle is
6mm to 8mm.
Double-layer wideband microstrip antenna the most according to claim 1, it is characterised in that described top dielectric plate and described lower floor
It is provided with plastic support post between the corner that dielectric-slab is corresponding.
Double-layer wideband microstrip antenna the most according to claim 7, it is characterised in that described plastic support post includes supporting section
Be formed at the linkage section at supporting section two ends, the diameter of described supporting section is more than the diameter of described linkage section, two described connections
Section is each passed through described top dielectric plate and described layer dielectric plate and fastens via plastic nut.
Double-layer wideband microstrip antenna the most according to claim 8, it is characterised in that described plastic support post a diameter of
3mm to 6mm, top dielectric plate or the edge 5mm to 15mm of described layer dielectric plate described in the centre-to-centre spacing of described plastic support post；
The height of described plastic nut is 2mm to 4mm.
Double-layer wideband microstrip antenna the most according to claim 1, it is characterised in that the thickness of described top dielectric plate is
0.5mm to 2mm, the thickness of described layer dielectric plate is 1mm to 3mm；Described top dielectric plate is with described layer dielectric plate
Rectangular Enclosure with Participating Media plate, a length of 100mm to 150mm of described Rectangular Enclosure with Participating Media plate, width is 100mm to 150mm；Described air-gap
It is highly 3mm to 6mm；The thickness of described metal floor is 0.01mm to 0.03mm.
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