CN102904012B - Combined semicircular dipole printed antenna of balance microstrip line transition waveguide feed - Google Patents
Combined semicircular dipole printed antenna of balance microstrip line transition waveguide feed Download PDFInfo
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- CN102904012B CN102904012B CN201210424743.2A CN201210424743A CN102904012B CN 102904012 B CN102904012 B CN 102904012B CN 201210424743 A CN201210424743 A CN 201210424743A CN 102904012 B CN102904012 B CN 102904012B
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Abstract
The invention provides a combined semicircular dipole printed antenna of balance microstrip line transition waveguide feed, which relates to a dipole printed antenna of balance microstrip line transition waveguide feed, and particularly to a combined semicircular dipole printed antenna of balance microstrip line transition waveguide feed. The invention solves the problems of poorer complanation, ultra-wideband, miniaturization, balance feed and directional diagraph symmetry of the traditional ultra-bandwidth antenna. A left oscillator assembly and a right oscillator assembly are symmetrically printed on the upper surface of the other end of an intermediate medium substrate along a center line of the intermediate medium substrate, the left oscillator assembly comprises a first semiwafer, a second semiwafer and a third semiwafer which are sequentially overlapped along the width direction of the intermediate medium substrate, a transition sheet is printed on the lower surface of the other end of the intermediate medium substrate, and is connected with a short balance microstrip line on the lower surface of the intermediate medium substrate, and a fourth metalized through hole is arranged in the first semiwafer of the right oscillator assembly. The invention is used in the field of radio.
Description
Technical field
The present invention relates to the printed antenna of balance microstrip line transition waceguide feed, be specifically related to the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed.
Background technology
Ultra-wideband antenna has very wide frequency band, in wireless transmissions can high-speed transfer information, thus extensive concern is received, the current definition about ultra broadband has a lot, the frequency range of the civilian ultra broadband that FCC (FCC) specifies is 3.1GHz-10.6GHz, it reaches 3.42:1 than bandwidth, usually the definition for ultra-wideband antenna is then at more than 2:1 than broadband, for the research of ultra-wideband antenna, researcher proposes kinds of schemes: one, the monopole of various abnormal shape, this kind of antenna can obtain omnidirectional radiation, if by its compact in size, then time-domain antenna can be become, two, the plane ultra-wideband directional antenna adopting little reflection theory to obtain, this kind of antenna is with Vivaldi antenna for representative, and majority has the border of gradual change, and their sizes are comparatively large, can realize the ultra broadband of frequency domain, three, the antenna that have employed the Technology design of frequency independent antenna realizes ultra broadband, comprises equiangular spiral antenna and logarithm periodic antenna etc.
Above-mentioned antenna design does not all comprise the symmetrical dipole of ultra broadband, because the balanced feeding of ultra broadband symmetrical dipole is difficult to realize, and have employed balance microstrip line and carry out feed, the bandwidth of operation of ultra-wide can be obtained, but balance microstrip line is a kind of open transmission line, larger radiation loss can be produced, be unfavorable for the occasion being applied in the longer feed distance of needs such as group battle array.
Summary of the invention
The present invention solves the poor problem of the complanation of existing ultra-wideband antenna, ultra broadband, miniaturized balanced feeding and directional diagram symmetry, and then proposes the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed.
The present invention is the technical scheme taked that solves the problem: the present invention includes left side vibrator component, right side vibrator component, transition plate, top dielectric substrate, middle level dielectric substrate, layer dielectric substrate, metal patch on top dielectric substrate, metal patch under top dielectric substrate, metal patch on layer dielectric substrate, metal patch under layer dielectric substrate, metal patch on the dielectric substrate of middle level, metal patch under the dielectric substrate of middle level, metal strap under two top dielectric substrates, two middle level dielectric substrate metal strip on gas, metal strap under two middle level dielectric substrates, two layer dielectric substrate metal strip on gas, two long balance microstrip line and two short balance microstrip line, on top dielectric substrate, metal patch is arranged on the upper surface of top dielectric substrate, under top dielectric substrate, metal patch is arranged on the middle part of top dielectric substrate lower surface, top dielectric substrate lower surface along its length both sides of the edge is respectively provided with metal strap under a top dielectric substrate respectively, on layer dielectric substrate, metal patch is arranged on the middle part of layer dielectric substrate upper surface, layer dielectric substrate upper surface along its length both sides of the edge is respectively provided with a layer dielectric substrate metal strip on gas respectively, the lower surface of layer dielectric substrate is provided with metal patch under layer dielectric substrate, the middle part of middle level dielectric substrate upper surface is provided with metal patch on the dielectric substrate of middle level, the middle part of middle level dielectric substrate lower surface is provided with metal patch under the dielectric substrate of middle level, dielectric substrate upper surface both sides of the edge along its length in middle level are respectively provided with a middle level dielectric substrate metal strip on gas respectively, dielectric substrate lower surface both sides of the edge along its length in middle level are respectively provided with metal strap under a middle level dielectric substrate respectively, top dielectric substrate, middle level dielectric substrate, layer dielectric substrate superposes setting from top to bottom successively, and metal patch contacts with metal patch on the dielectric substrate of middle level under top dielectric substrate, on layer dielectric substrate, metal patch contacts with metal patch under the dielectric substrate of middle level, under each top dielectric substrate, metal strap contacts with corresponding middle level dielectric substrate metal strip on gas, each layer dielectric substrate metal strip on gas contacts with metal strap under corresponding middle level dielectric substrate, on top dielectric substrate, metal patch upper surface both sides of the edge along its length are respectively provided with one respectively and ranked first metallization via hole, each first metallization via hole is from top to bottom successively through metal patch on top dielectric substrate, top dielectric substrate, metal strap under top dielectric substrate, middle level dielectric substrate metal strip on gas, middle level dielectric substrate, metal strap under the dielectric substrate of middle level, layer dielectric substrate metal strip on gas, metal patch under layer dielectric substrate and layer dielectric substrate, on top dielectric substrate, on metal patch upper surface middle part and layer dielectric substrate, metal patch upper surface middle part is respectively provided with two along its length respectively and ranked second metallization via hole, on top dielectric substrate, on metal patch upper surface middle part and layer dielectric substrate, metal patch upper surface middle part broad ways is respectively provided with two respectively and ranked third metallization via hole, on top dielectric substrate two of metal patch ranked second metallization via hole and two ranked third metallization via hole formed rectangular box, on layer dielectric substrate two of metal patch ranked second metallization via hole and two ranked third metallization via hole formed rectangular box, on top dielectric substrate, each second metallization via hole and each 3rd of metal patch upper surface metallizes via hole from top to bottom respectively successively through metal patch on top dielectric substrate, top dielectric substrate, metal patch under top dielectric substrate, on layer dielectric substrate, each second metallization via hole and each 3rd of metal patch upper surface metallizes via hole from top to bottom respectively successively through metal patch on layer dielectric substrate, layer dielectric substrate, metal patch under layer dielectric substrate, on the dielectric substrate of middle level, one end of metal patch is connected with a long balance microstrip line, on the dielectric substrate of middle level, the other end of metal patch is connected with a short balance microstrip line, under the dielectric substrate of middle level, one end of metal patch is connected with a long balance microstrip line, under the dielectric substrate of middle level, the other end of metal patch is connected with a short balance microstrip line, left side vibrator component and right side vibrator component are symmetricly set on the upper surface of the middle level dielectric substrate other end along the center line of middle level dielectric substrate, left side vibrator component is identical with right side vibrator component structure, left side vibrator component is by the first halfround bar slice, second halfround bar slice and the 3rd halfround bar slice composition, first halfround bar slice, second halfround bar slice, 3rd halfround bar slice overlaps successively along the Width of middle level dielectric substrate, the straight flange of the first halfround bar slice, the straight flange of the second halfround bar slice, the straight flange of the 3rd halfround bar slice is all with the middle line parallel of middle level dielectric substrate and away from center line, the radius of the first halfround bar slice is R
1, the radius of the second halfround bar slice is R
2, the radius of the 3rd halfround bar slice is R
3, and R
1: R
2: R
3=4:2:1, first halfround bar slice arc-shaped edges of left side vibrator component is connected with the short balance microstrip line of middle level dielectric substrate upper surface, transition plate is printed on the lower surface of the middle level dielectric substrate other end, and transition plate is connected with the short balance microstrip line on the dielectric substrate lower surface of middle level, first halfround bar slice of right side vibrator component is provided with the 4th metallization via hole, and the 4th metallization via hole is from top to bottom successively through the transition plate on the first halfround bar slice of right side vibrator component, middle level dielectric substrate, middle level dielectric substrate lower surface.
The invention has the beneficial effects as follows: the present invention is planographic type antenna, and size is little, compact conformation, accessible site, on the circuit board of mobile terminal, greatly achieves the miniaturization of antenna.
1, antenna radiator part: antenna radiator proposed by the invention is symmetrical dipole structure, and directional diagram has symmetry.
2, waveguides sections: the balance microstrip line one, introducing the sectional area gradual change of its transitional function, this balance microstrip line belongs to undersized TEM ripple transmission line, the port sizes of this transmission line is very little, the cut-off frequency of the higher mode of whole transmission line system can be improved, can the higher mode of effectively filtering low-frequency range; Two, double ridged waveguide is compared rectangular waveguide and is had the longer feature of the cut-off wavelength of main mould field, when identical operation wavelength, waveguide dimensions can reduce, main mould and other higher mode cut-off wavelengths are relatively far apart, therefore, single mode operation frequency band is wider, and equiva lent impedance is lower, can mate with low-impedance coaxial line or microstrip line; Three, machine emulation draws as calculated, and the multimode propagation coefficient without the simple medium integrated waveguide of transition result is lower, and the frequency range of single mode transport also significantly reduces, and is only 2.16-4.80GHz, and absolute bandwidth is only has 40% of transition structure; Four, the structure of double ridged waveguide part of the present invention is planographic waveguide, and adopt circuitron explained hereafter, can be integrated in large-scale circuit as a part for printed circuit and go, size is little, is easy to integrated, can large-scale production, and difficulty of processing is low; Five, due to the effect of ridge waveguide, there is directional characteristic at high band in antenna.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention, Fig. 2 is front view of the present invention, Fig. 3 is the vertical view of Fig. 2, Fig. 4 is the upward view of Fig. 2, Fig. 5 is the vertical view of top dielectric substrate, Fig. 6 is the upward view of Fig. 5, Fig. 7 is the vertical view of middle level dielectric substrate, Fig. 8 is the upward view of Fig. 7, Fig. 9 is the vertical view of layer dielectric substrate, Figure 10 is the upward view of Fig. 9, Figure 11 is the reflection coefficient experimental result curve chart of inventive antenna, E face of the present invention directional diagram when Figure 12 is 8GHz, E face of the present invention directional diagram when Figure 13 is 9GHz, H face of the present invention directional diagram when Figure 14 is 8GHz, H face of the present invention directional diagram when Figure 15 is 9GHz.
Embodiment
Embodiment one: composition graphs 1 illustrates present embodiment, the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed described in present embodiment comprises left side vibrator component 1, right side vibrator component 2, transition plate 3, top dielectric substrate 4, middle level dielectric substrate 5, layer dielectric substrate 6, metal patch 7 on top dielectric substrate, metal patch 8 under top dielectric substrate, metal patch 9 on layer dielectric substrate, metal patch 10 under layer dielectric substrate, metal patch 11 on the dielectric substrate of middle level, metal patch 12 under the dielectric substrate of middle level, metal strap 13 under two top dielectric substrates, two middle level dielectric substrate metal strip on gas 14, metal strap 15 under two middle level dielectric substrates, two layer dielectric substrate metal strip on gas 16, two long balance microstrip line 17 and two short balance microstrip line 18, on top dielectric substrate, metal patch 7 is arranged on the upper surface of top dielectric substrate 4, under top dielectric substrate, metal patch 8 is arranged on the middle part of top dielectric substrate 4 lower surface, top dielectric substrate 4 lower surface along its length both sides of the edge is respectively provided with metal strap 13 under a top dielectric substrate respectively, on layer dielectric substrate, metal patch 9 is arranged on the middle part of layer dielectric substrate 6 upper surface, layer dielectric substrate 6 upper surface along its length both sides of the edge is respectively provided with a layer dielectric substrate metal strip on gas 16 respectively, the lower surface of layer dielectric substrate 6 is provided with metal patch 10 under layer dielectric substrate, the middle part of middle level dielectric substrate 5 upper surface is provided with metal patch 11 on the dielectric substrate of middle level, the middle part of middle level dielectric substrate 5 lower surface is provided with metal patch 12 under the dielectric substrate of middle level, middle level dielectric substrate 5 upper surface both sides of the edge along its length are respectively provided with a middle level dielectric substrate metal strip on gas 14 respectively, middle level dielectric substrate 5 lower surface both sides of the edge along its length are respectively provided with metal strap 15 under a middle level dielectric substrate respectively, top dielectric substrate 4, middle level dielectric substrate 5, layer dielectric substrate 6 superposes setting from top to bottom successively, and metal patch 8 contacts with metal patch 11 on the dielectric substrate of middle level under top dielectric substrate, on layer dielectric substrate, metal patch 9 contacts with metal patch 12 under the dielectric substrate of middle level, under each top dielectric substrate, metal strap 13 contacts with corresponding middle level dielectric substrate metal strip on gas 14, each layer dielectric substrate metal strip on gas 16 contacts with metal strap 15 under corresponding middle level dielectric substrate, on top dielectric substrate, metal patch 7 upper surface both sides of the edge along its length are respectively provided with one respectively and ranked first metallization via hole 19, each first metallization via hole 19 is from top to bottom successively through metal patch 7 on top dielectric substrate, top dielectric substrate 4, metal strap 13 under top dielectric substrate, middle level dielectric substrate metal strip on gas 14, middle level dielectric substrate 5, metal strap 15 under the dielectric substrate of middle level, layer dielectric substrate metal strip on gas 16, metal patch 10 under layer dielectric substrate 6 and layer dielectric substrate, on top dielectric substrate, on metal patch 7 upper surface middle part and layer dielectric substrate, metal patch 9 upper surface middle part is respectively provided with two along its length respectively and ranked second metallization via hole 20, on top dielectric substrate, on metal patch 7 upper surface middle part and layer dielectric substrate, metal patch 9 upper surface middle part broad ways is respectively provided with two respectively and ranked third metallization via hole 21, on top dielectric substrate, two of metal patch 7 ranked second metallization via hole 20 and two and ranked third metallization via hole 21 and form rectangular box, on layer dielectric substrate, two of metal patch 9 ranked second metallization via hole 20 and two and ranked third metallization via hole 21 and form rectangular box, on top dielectric substrate, each second metallization via hole 20 and each 3rd of metal patch 7 upper surface metallizes via hole 21 from top to bottom respectively successively through metal patch 7 on top dielectric substrate, top dielectric substrate 4, metal patch 8 under top dielectric substrate, on layer dielectric substrate, each second metallization via hole 20 and each 3rd of metal patch 9 upper surface metallizes via hole 21 from top to bottom respectively successively through metal patch 9 on layer dielectric substrate, layer dielectric substrate 6, metal patch 10 under layer dielectric substrate, on the dielectric substrate of middle level, one end of metal patch 11 is connected with a long balance microstrip line 17, on the dielectric substrate of middle level, the other end of metal patch 11 is connected with a short balance microstrip line 18, under the dielectric substrate of middle level, one end of metal patch 12 is connected with a long balance microstrip line 17, under the dielectric substrate of middle level, the other end of metal patch 12 is connected with a short balance microstrip line 18, left side vibrator component 1 and right side vibrator component 2 are symmetricly set on the upper surface of middle level dielectric substrate 5 other end along the center line of middle level dielectric substrate 5, left side vibrator component 1 is identical with right side vibrator component 2 structure, left side vibrator component 1 is by the first halfround bar slice 1-1, second halfround bar slice 1-2 and the 3rd halfround bar slice 1-3 forms, first halfround bar slice 1-1, second halfround bar slice 1-2, 3rd halfround bar slice 1-3 overlaps successively along the Width of middle level dielectric substrate 5, the straight flange of the first halfround bar slice 1-1, the straight flange of the second halfround bar slice 1-2, the straight flange of the 3rd halfround bar slice 1-3 is all with the middle line parallel of middle level dielectric substrate 5 and away from center line, the radius of the first halfround bar slice 1-1 is R
1, the radius of the second halfround bar slice 1-2 is R
2, the radius of the 3rd halfround bar slice 1-3 is R
3, and R
1: R
2: R
3=4:2:1, first halfround bar slice 1-1 arc-shaped edges of left side vibrator component 1 is connected with the short balance microstrip line 18 of middle level dielectric substrate 5 upper surface, transition plate 3 is printed on the lower surface of middle level dielectric substrate 5 other end, and transition plate 3 is connected with the short balance microstrip line 18 on middle level dielectric substrate 5 lower surface, first halfround bar slice 1-1 of right side vibrator component 2 is provided with the 4th metallization via hole the 22, four and metallizes via hole 22 from top to bottom successively through the transition plate 3 on the first halfround bar slice 1-1 of right side vibrator component 2, middle level dielectric substrate 5, middle level dielectric substrate 5 lower surface.
Present embodiment is dielectric substrate 4 at the middle and upper levels, middle level dielectric substrate 5, layer dielectric substrate 6, metal patch 7 on top dielectric substrate, metal patch 8 under top dielectric substrate, metal patch 9 on layer dielectric substrate, metal patch 10 under layer dielectric substrate, metal patch 11 on the dielectric substrate of middle level, metal patch 12 under the dielectric substrate of middle level, metal strap 13 under two top dielectric substrates, two middle level dielectric substrate metal strip on gas 14, metal strap 15 under two middle level dielectric substrates, two layer dielectric substrate metal strip on gas 16 form wave conductor, left side oscillator 1, right side oscillator 2, the 4th metallization via hole 22 and middle level dielectric substrate 5 form antenna body.
In present embodiment, left side vibrator component 1 and right side vibrator component 2 constitute the radiant section of antenna, the reflection of electromagnetic wave that the Mutational part that left side vibrator component 1 and right side vibrator component 2 reduce structure causes, widen antenna impedance bandwidth, thus reach ultra broadband characteristic.
In present embodiment, left side vibrator component 1 and right side vibrator component 2 are all overlapped successively by the first halfround bar slice 1-1, the second halfround bar slice 1-2 and the 3rd halfround bar slice 1-3 and form, and the technique effect arranged like this is: improve polarised direction size, be conducive to the miniaturization of oscillator.
Embodiment two: composition graphs 7 to Fig. 8 illustrates present embodiment, the both sides of the edge of middle level dielectric substrate 5 other end of the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed described in present embodiment are respectively provided with a prolongation boss 5-1 respectively.The technique effect of present embodiment is: the dielectric-slab size only increasing oscillator region, is conducive to reducing the dielectric-slab gross area.Other composition and annexation identical with embodiment one.
Embodiment three: composition graphs 5 to Figure 10 illustrates present embodiment, the length of the top dielectric substrate 4 of the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed described in present embodiment is 50mm, the width of top dielectric substrate 4 is 35mm, the thickness of top dielectric substrate 4 is 1.5mm, the length of middle level dielectric substrate 5 is 120mm, the width of middle level dielectric substrate 5 one end is 35mm, the width of middle level dielectric substrate 5 other end is 38mm, the thickness of middle level dielectric substrate 5 is 1.5mm, the length of each prolongation boss 5-1 of middle level dielectric substrate 5 is 25mm, the length of layer dielectric substrate 6 is 50mm, the width of layer dielectric substrate 6 is 35mm, the thickness of layer dielectric substrate 6 is 1.5mm, on the dielectric substrate of middle level, the length of metal patch 11 is 50mm, on the dielectric substrate of middle level, the width of metal patch 11 is 16mm, on the dielectric substrate of middle level, the thickness of metal patch 11 is 0.01mm-0.04mm, under the dielectric substrate of middle level, the length of metal patch 12 is 50mm, under the dielectric substrate of middle level, the width of metal patch 12 is 16mm, under the dielectric substrate of middle level, the thickness of metal patch 12 is 0.01mm-0.04mm.Top dielectric substrate 4 in present embodiment, middle level dielectric substrate 5 and layer dielectric substrate 6 all adopt dielectric constant be 4.4 epoxy glass cloth laminated board make, setting like this, top dielectric substrate 4, middle level dielectric substrate 5 and layer dielectric substrate 6 electric property good stability in high temperature environments.Other composition and annexation identical with embodiment one or two.
Embodiment four: composition graphs 7 and Fig. 8 illustrate present embodiment, the radius R of the first halfround bar slice 1-1 of the left side vibrator component 1 of the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed described in present embodiment
1=14mm, the radius R of the second halfround bar slice 1-2
2=7mm, the radius R of the 3rd halfround bar slice 1-3
3=3.5mm, the distance L1 between the first halfround bar slice 1-1 of left side vibrator component 1 and the first halfround bar slice 1-1 of right side vibrator component 2 is 1.6mm.The technique effect of present embodiment is: the polarised direction size that both effectively improve oscillator, reduces the initial operating frequency of antenna, is unlikely to again to make oscillator area excessive.In addition, rational element spacing L1 is conducive to the working band of broadening oscillator.Other composition and annexation identical with embodiment one.
Embodiment five: composition graphs 1 to Figure 10 illustrates present embodiment, the diameter 2mm of each first metallization via hole 19 of the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed described in present embodiment, the centre-to-centre spacing of adjacent two first metallization via holes 19 is 3mm, the diameter of each second metallization via hole 20 is 2mm, the diameter of each 3rd metallization via hole 21 is 2mm, the diameter of each 4th metallization via hole 22 is 2mm, and the distance L2 between the center of each second metallization via hole 20 and top dielectric substrate 4 center line is 8mm.The technique effect of present embodiment is: the radiation loss that the choose reasonable of via diameter and spacing is conducive to reducing printed form waveguide also can effectively improve its intensity.The Rational choice of distance L2 effectively can improve the single mode operation bandwidth of waveguide.Other composition and annexation identical with embodiment one.
Embodiment six: composition graphs 7 and Fig. 8 illustrate present embodiment, the each long balance microstrip line 17 of the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed described in present embodiment is made up of the first trapezoidal transition plate 17-1 and the first rectangular transition plate 17-2, the minor face of the first trapezoidal transition plate 17-1 is connected with a minor face of the first rectangular transition plate 17-2 and makes one, each short balance microstrip line 18 is made up of the second trapezoidal transition plate 18-1 and the second rectangular transition plate 18-2, the minor face of the second trapezoidal transition plate 18-1 is connected with a minor face of the second rectangular transition plate 18-2 and makes one.Present embodiment makes long balance microstrip line 17 and short balance microstrip line 18 have the sectional area of gradual change, forms certain inclination angle, reaches microstrip transition object, can play impedance matching effect, so arrange, meet the design requirements and the actual needs.Other composition and annexation identical with embodiment one.
Embodiment seven: composition graphs 1 illustrates present embodiment, the length L3 on each first long base of trapezoidal transition plate 17-1 of the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed described in present embodiment is 14mm, the each first length L4 crossing the trapezoidal short base of cab apron 17-1 is 3mm, the high H1 of each first trapezoidal transition plate 17-1 is 30mm, the length L5 of each first rectangular transition plate 17-2 minor face is 3mm, the length L6 on each first long limit of rectangular transition plate 17-2 is 5mm, the length L7 on each second long base of trapezoidal transition plate 18-1 is 14mm, the length L8 on each second short base of trapezoidal transition plate 18-1 is 3mm, the high H2 of each second trapezoidal transition plate 18-1 is 15mm, the length L9 on each second long limit of rectangular transition plate 18-2 is 5mm, the length L10 of each second rectangular transition plate 18-2 minor face is 3mm.The technique effect of present embodiment is: choose reasonable rebound length and trapezoidal base angle size can make antenna impedance more easily mate, and bandwidth of operation is wider.Other composition and annexation identical with embodiment six.
Embodiment eight: composition graphs 1 illustrates present embodiment, the refractory material of the top dielectric substrate 4 of the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed described in present embodiment, middle level dielectric substrate 5 and layer dielectric substrate 6 to be all refractory material grades be FR-4 makes.In present embodiment, FR-4 is a kind of code name of refractory material grade, and the representative resin material that is meant to must a kind of material specification of self-extinguish through fired state, and it is not a kind of title material, but a kind of material rate.Other composition and annexation and embodiment one, two, four or five identical.
Operation principle
Left side of the present invention vibrator component 1 and right side vibrator component 2 are the radiant body of antenna, and the composition of the CURRENT DISTRIBUTION on the long limit of waveguide sections can be divided into two parts: the electric current that a part is come by feeding transmission; Another part is the electric current that the current emissions on antenna radiator induces in the waveguide metal of close together.Be subject to the impact of waveguiding structure, the electric current transmitted by feed end can not cause radiation, the electric current that can produce radiation is only the electric current that radiant body induces, the electric current of metal radiation surface is mainly distributed in the edge of left side vibrator component 1 and right side vibrator component 2, the contribution of electric current to radiant body at edge is main, due to the circular arc at the edge of left side vibrator component 1 and right side vibrator component 2, the ELECTROMAGNETIC REFLECTION that the Mutational part reducing structure causes, widen antenna impedance bandwidth, thus reach ultra broadband characteristic.
As can be seen from the test result in Figure 11, the bandwidth of operation of antenna be 2.0-20GHz (| S
11| <-6dB), cover whole S/C/X/Ku wave band.Than bandwidth 10:1, reach the index of ultra-wideband antenna, also reach the ratio bandwidth requirement that FCC specifies.
Can find out from Figure 12 to Figure 15 that antenna is better in the directionality of high band (8-9GHz), inventive antenna may be used for directed electromagnetic radiation and reception.
Claims (8)
1. the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed, it is characterized in that: the combination semicircular dipole printed antenna of described balance microstrip line transition waceguide feed comprises left side vibrator component (1), right side vibrator component (2), transition plate (3), top dielectric substrate (4), middle level dielectric substrate (5), layer dielectric substrate (6), metal patch (7) on top dielectric substrate, metal patch (8) under top dielectric substrate, metal patch (9) on layer dielectric substrate, metal patch (10) under layer dielectric substrate, metal patch (11) on the dielectric substrate of middle level, metal patch (12) under the dielectric substrate of middle level, metal strap (13) under two top dielectric substrates, two middle levels dielectric substrate metal strip on gas (14), metal strap (15) under two middle level dielectric substrates, two layer dielectric substrate metal strip on gas (16), two long balance microstrip line (17) and two short balance microstrip line (18), on top dielectric substrate, metal patch (7) is arranged on the upper surface of top dielectric substrate (4), under top dielectric substrate, metal patch (8) is arranged on the middle part of top dielectric substrate (4) lower surface, top dielectric substrate (4) lower surface along its length both sides of the edge is respectively provided with metal strap (13) under a top dielectric substrate respectively, on layer dielectric substrate, metal patch (9) is arranged on the middle part of layer dielectric substrate (6) upper surface, layer dielectric substrate (6) upper surface along its length both sides of the edge is respectively provided with a layer dielectric substrate metal strip on gas (16) respectively, the lower surface of layer dielectric substrate (6) is provided with metal patch (10) under layer dielectric substrate, the middle part of middle level dielectric substrate (5) upper surface is provided with metal patch (11) on the dielectric substrate of middle level, the middle part of middle level dielectric substrate (5) lower surface is provided with metal patch (12) under the dielectric substrate of middle level, middle level dielectric substrate (5) upper surface both sides of the edge along its length are respectively provided with middle level dielectric substrate metal strip on gas (14) respectively, middle level dielectric substrate (5) lower surface both sides of the edge along its length are respectively provided with metal strap (15) under a middle level dielectric substrate respectively, top dielectric substrate (4), middle level dielectric substrate (5), layer dielectric substrate (6) superposes setting from top to bottom successively, and metal patch (8) contacts with metal patch (11) on the dielectric substrate of middle level under top dielectric substrate, on layer dielectric substrate, metal patch (9) contacts with metal patch (12) under the dielectric substrate of middle level, under each top dielectric substrate, metal strap (13) contacts with corresponding middle level dielectric substrate metal strip on gas (14), each layer dielectric substrate metal strip on gas (16) contacts with metal strap (15) under corresponding middle level dielectric substrate, on top dielectric substrate, metal patch (7) upper surface both sides of the edge along its length are respectively provided with one respectively and ranked first metallization via hole (19), each first metallization via hole (19) is from top to bottom successively through metal patch (7) on top dielectric substrate, top dielectric substrate (4), metal strap (13) under top dielectric substrate, middle level dielectric substrate metal strip on gas (14), middle level dielectric substrate (5), metal strap (15) under the dielectric substrate of middle level, layer dielectric substrate metal strip on gas (16), metal patch (10) under layer dielectric substrate (6) and layer dielectric substrate, on top dielectric substrate, on metal patch (7) upper surface middle part and layer dielectric substrate, metal patch (9) upper surface middle part is respectively provided with two along its length respectively and ranked second metallization via hole (20), on top dielectric substrate, on metal patch (7) upper surface middle part and layer dielectric substrate, metal patch (9) upper surface middle part broad ways is respectively provided with two respectively and ranked third metallization via hole (21), on top dielectric substrate two of metal patch (7) ranked second metallization via hole (20) and two ranked third metallization via hole (21) formation rectangular box, on layer dielectric substrate two of metal patch (9) ranked second metallization via hole (20) and two ranked third metallization via hole (21) formation rectangular box, on top dielectric substrate, each second metallization via hole (20) and each 3rd of metal patch (7) upper surface metallizes via hole (21) from top to bottom respectively successively through metal patch (7) on top dielectric substrate, top dielectric substrate (4), metal patch (8) under top dielectric substrate, on layer dielectric substrate, each second metallization via hole (20) and each 3rd of metal patch (9) upper surface metallizes via hole (21) from top to bottom respectively successively through metal patch (9) on layer dielectric substrate, layer dielectric substrate (6), metal patch (10) under layer dielectric substrate, on the dielectric substrate of middle level, one end of metal patch (11) is connected with a long balance microstrip line (17), on the dielectric substrate of middle level, the other end of metal patch (11) is connected with a short balance microstrip line (18), under the dielectric substrate of middle level, one end of metal patch (12) is connected with a long balance microstrip line (17), under the dielectric substrate of middle level, the other end of metal patch (12) is connected with a short balance microstrip line (18), left side vibrator component (1) is symmetricly set on the upper surface of middle level dielectric substrate (5) other end with right side vibrator component (2) along the center line of middle level dielectric substrate (5), left side vibrator component (1) is identical with right side vibrator component (2) structure, left side vibrator component (1) is by the first halfround bar slice (1-1), second halfround bar slice (1-2) and the 3rd halfround bar slice (1-3) composition, first halfround bar slice (1-1), second halfround bar slice (1-2), 3rd halfround bar slice (1-3) overlaps successively along the Width of middle level dielectric substrate (5), the straight flange of the first halfround bar slice (1-1), the straight flange of the second halfround bar slice (1-2), the straight flange of the 3rd halfround bar slice (1-3) is all with the middle line parallel of middle level dielectric substrate (5) and away from center line, the radius of the first halfround bar slice (1-1) is R
1, the radius of the second halfround bar slice (1-2) is R
2, the radius of the 3rd halfround bar slice (1-3) is R
3, and R
1: R
2: R
3=4:2:1, first halfround bar slice (1-1) arc-shaped edges in left side vibrator component (1) is connected with the short balance microstrip line (18) of middle level dielectric substrate (5) upper surface, transition plate (3) is printed on the lower surface of middle level dielectric substrate (5) other end, and transition plate (3) is connected with the short balance microstrip line (18) on middle level dielectric substrate (5) lower surface, first halfround bar slice (1-1) on right side vibrator component (2) is provided with the 4th metallization via hole (22), 4th metallization via hole (22) is from top to bottom successively through first halfround bar slice (1-1) of right side vibrator component (2), middle level dielectric substrate (5), transition plate (3) on middle level dielectric substrate (5) lower surface.
2. the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed according to claim 1, is characterized in that: the both sides of the edge of middle level dielectric substrate (5) other end are respectively provided with a prolongation boss (5-1) respectively.
3. the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed according to claim 1 or 2, it is characterized in that: the length of top dielectric substrate (4) is 50mm, the width of top dielectric substrate (4) is 35mm, the thickness of top dielectric substrate (4) is 1.5mm, the length of middle level dielectric substrate (5) is 120mm, the width of middle level dielectric substrate (5) one end is 35mm, the width of middle level dielectric substrate (5) other end is 38mm, the thickness of middle level dielectric substrate (5) is 1.5mm, the length of each prolongation boss (5-1) of middle level dielectric substrate (5) is 25mm, the length of layer dielectric substrate (6) is 50mm, the width of layer dielectric substrate (6) is 35mm, the thickness of layer dielectric substrate (6) is 1.5mm, on the dielectric substrate of middle level, the length of metal patch (11) is 50mm, on the dielectric substrate of middle level, the width of metal patch (11) is 16mm, on the dielectric substrate of middle level, the thickness of metal patch (11) is 0.01mm-0.04mm, under the dielectric substrate of middle level, the length of metal patch (12) is 50mm, under the dielectric substrate of middle level, the width of metal patch (12) is 16mm, under the dielectric substrate of middle level, the thickness of metal patch (12) is 0.01mm-0.04mm.
4. the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed according to claim 1, is characterized in that: the radius R of first halfround bar slice (1-1) of left side vibrator component (1)
1=14mm, the radius R of the second halfround bar slice (1-2)
2=7mm, the radius R of the 3rd halfround bar slice (1-3)
3=3.5mm, the distance (L1) between first halfround bar slice (1-1) of left side vibrator component (1) and first halfround bar slice (1-1) of right side vibrator component (2) is 1.6mm.
5. the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed according to claim 1, it is characterized in that: the diameter 2mm of each first metallization via hole (19), the centre-to-centre spacing of adjacent two first metallization via hole (19) is 3mm, the diameter of each second metallization via hole (20) is 2mm, the diameter of each 3rd metallization via hole (21) is 2mm, the diameter of each 4th metallization via hole (22) is 2mm, distance (L2) between the center of each second metallization via hole (20) and top dielectric substrate (4) center line is 8mm.
6. the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed according to claim 1, it is characterized in that: each long balance microstrip line (17) is made up of the first trapezoidal transition plate (17-1) and the first rectangular transition plate (17-2), the minor face of the first trapezoidal transition plate (17-1) is connected with a minor face of the first rectangular transition plate (17-2) and makes one, each short balance microstrip line (18) is made up of the second trapezoidal transition plate (18-1) and the second rectangular transition plate (18-2), the minor face of the second trapezoidal transition plate (18-1) is connected with a minor face of the second rectangular transition plate (18-2) and makes one.
7. the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed according to claim 6, it is characterized in that: the length (L3) on each first trapezoidal transition plate (17-1) long base is 14mm, the length (L4) on each first trapezoidal transition plate (17-1) short base is 3mm, the height (H1) of each first trapezoidal transition plate (17-1) is 30mm, the length (L5) of each first rectangular transition plate (17-2) minor face is 3mm, the length (L6) on each first rectangular transition plate (17-2) long limit is 5mm, the length (L7) on each second trapezoidal transition plate (18-1) long base is 14mm, the length (L8) on each second trapezoidal transition plate (18-1) short base is 3mm, the height (H2) of each second trapezoidal transition plate (18-1) is 15mm, the length (L9) on each second rectangular transition plate (18-2) long limit is 5mm, the length (L10) of each second rectangular transition plate (18-2) minor face is 3mm.
8. the combination semicircular dipole printed antenna of balance microstrip line transition waceguide feed according to claim 1,2,4 or 5, is characterized in that: the refractory material of top dielectric substrate (4), middle level dielectric substrate (5) and layer dielectric substrate (6) to be all refractory material grades be FR-4 makes.
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| CN201210424743.2A CN102904012B (en) | 2012-10-30 | 2012-10-30 | Combined semicircular dipole printed antenna of balance microstrip line transition waveguide feed |
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| CN103490158B (en) * | 2013-09-24 | 2015-04-29 | 哈尔滨工业大学 | Aperture array antenna based on medium integration ridge waveguide |
| CN103474785B (en) * | 2013-09-24 | 2015-07-08 | 哈尔滨工业大学 | Seam-variable large-bandwidth traveling wave seam array antenna with radiation-type load |
Citations (5)
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|---|---|---|---|---|
| CN101075702A (en) * | 2007-06-19 | 2007-11-21 | 东南大学 | Printing antenna with baseplate integrated waveguide feeder |
| CN201174415Y (en) * | 2008-04-03 | 2008-12-31 | 南京理工大学 | Half-modular chip integrated waveguide stereo power distributor adopting ladder transition |
| CN101752659A (en) * | 2010-02-10 | 2010-06-23 | 东南大学 | Ultrabroad band double-faced transition groove wire antenna using coplanar waveguide feed |
| CN102709658A (en) * | 2012-06-08 | 2012-10-03 | 哈尔滨工业大学 | Half mode double-ridge substrate integrated waveguide with transitional balanced micro-strip lines |
| CN102723601A (en) * | 2012-06-19 | 2012-10-10 | 北京航空航天大学 | Ultra-wide-band dual-notch paster antenna adopting wide-attenuation-band electromagnetic band gap structure |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101075702A (en) * | 2007-06-19 | 2007-11-21 | 东南大学 | Printing antenna with baseplate integrated waveguide feeder |
| CN201174415Y (en) * | 2008-04-03 | 2008-12-31 | 南京理工大学 | Half-modular chip integrated waveguide stereo power distributor adopting ladder transition |
| CN101752659A (en) * | 2010-02-10 | 2010-06-23 | 东南大学 | Ultrabroad band double-faced transition groove wire antenna using coplanar waveguide feed |
| CN102709658A (en) * | 2012-06-08 | 2012-10-03 | 哈尔滨工业大学 | Half mode double-ridge substrate integrated waveguide with transitional balanced micro-strip lines |
| CN102723601A (en) * | 2012-06-19 | 2012-10-10 | 北京航空航天大学 | Ultra-wide-band dual-notch paster antenna adopting wide-attenuation-band electromagnetic band gap structure |
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