CN207265226U - The substrate of high radiation efficiency integrates medium resonator antenna array - Google Patents
The substrate of high radiation efficiency integrates medium resonator antenna array Download PDFInfo
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- CN207265226U CN207265226U CN201721332085.9U CN201721332085U CN207265226U CN 207265226 U CN207265226 U CN 207265226U CN 201721332085 U CN201721332085 U CN 201721332085U CN 207265226 U CN207265226 U CN 207265226U
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Abstract
Substrate the utility model discloses high radiation efficiency integrates medium resonator antenna array, including the first medium substrate and second medium substrate set from lower to upper；The upper and lower surface of first medium substrate is respectively equipped with metal layer and the first lower metal layer on first, the first plated-through hole through first medium substrate is equipped with first between metal layer and the first lower metal layer, the broadside of metal layer is equipped with feed end on first, multiple coupling slots are additionally provided with first on metal layer, coupling slot is respectively in the both sides of first medium substrate center line；The upper and lower surface of second medium substrate is respectively equipped with metal layer and the second lower metal layer on second, is equipped with the second plated-through hole through second medium substrate on second between metal layer and the second lower metal layer, and the second plated-through hole surrounds multiple resonators；The resonator is corresponded with coupling slot, and there is a coupling slot in the lower section of each resonator.The utility model effectively increases the radiation efficiency of aerial array.
Description
Technical field
It the utility model is related to substrate and integrate medium resonator antenna array, more particularly to the substrate collection of high radiation efficiency
Into medium resonator antenna array.
Background technology
Medium resonator antenna preferably overcomes surface wave and conductor losses so that it obtains more next in millimeter wave frequency band
A kind of more concerns and application, it has also become millimeter wave antenna of great competitiveness.It also shows many potential excellent at the same time
Point, such as size is small, light-weight, radiation efficiency is higher, bandwidth, excitation are simple etc..Medium resonator antenna can be designed to
Various shapes, have cylinder, hemispherical, Elliptic Cylinder, centrum, rectangular column, triangular column, H-shaped column, the bowtie-shaped cylinder etc. various
Shape.But it is possible to commercially available dielectric resonator usually only has limited size and dimension, to Mr. Yu in design
The medium resonator antenna of one given shape, follow-up processing and assembling process are essential, this necessarily increases antenna
Processing cost and manufacture complexity.Meanwhile the medium resonator antenna of these typical shapes also be difficult to by means of integrated technique into
Row realizes, and then significantly limit the reduction of antenna size and integrated.
Substrate integration wave-guide (SIW) technology is microwave, the design of millimetre-wave circuit and realization provide it is a kind of attractive
Solution.Its with low section, low cost, be easy to integrate with planar circuit, can be easily by means of printed circuit board (PCB)
(PCB) the advantages that or low-temperature co-fired ceramics (LTCC) technique is realized.Recently, SIW has been successfully used to excitable media resonance
Device antenna, and show relatively low feeder loss.But but Shortcomings in the prior art, for example, aerial array size also
Not small enough, radiation efficiency is not very high, the development of these such aerial arrays all limited significantly.
Utility model content
Purpose of utility model：The purpose of this utility model, which is to provide, a kind of can solve defect existing in the prior art
The substrate of high radiation efficiency integrates medium resonator antenna array.
Technical solution：The substrate of high radiation efficiency described in the utility model integrates medium resonator antenna array, including
The first medium substrate and second medium substrate set from lower to upper；The upper and lower surface of first medium substrate is respectively equipped with first
Upper metal layer and the first lower metal layer, the through first medium substrate is equipped with first between metal layer and the first lower metal layer
One plated-through hole, the broadside of metal layer is equipped with feed end on first, is additionally provided with multiple coupling slots on metal layer on first, couples
Groove is respectively in the both sides of first medium substrate center line；The upper and lower surface of second medium substrate is respectively equipped with metal layer on second
With the second lower metal layer, the second metallization through second medium substrate is equipped with second between metal layer and the second lower metal layer
Through hole, the second plated-through hole surround multiple resonators；The resonator is corresponded with coupling slot, the lower section of each resonator
There is a coupling slot.
Further, first plated-through hole has two parallel row, is symmetricly set on first medium substrate center line
Both sides.
Further, the shape of the coupling slot is rectangle, its long side is parallel with the first plated-through hole.So can be effective
Reduce the size of aerial array, be easy to implement cramped construction.
Further, each resonator is surrounded by inside and outside two the second plated-through holes of circle.
Further, the shape that second plated-through hole of inner ring surrounds is square.
Further, the feed end includes microstrip line and transition line.
Further, the dielectric constant of the first medium substrate is less than the dielectric constant of second medium substrate.
Further, the thickness of the first medium substrate is less than the thickness of second medium substrate.
Further, coupling the distance between the groove center line and first medium substrate center line are 0.5mm.It is so effective
The distance that coupling slot deviates first medium substrate center line is reduced, good impedance matching and energy coupling is obtained, subtracts
The small loss of energy, improves radiation efficiency.
Beneficial effect：The utility model discloses a kind of substrate of high radiation efficiency to integrate medium resonator antenna array,
The radiation efficiency of aerial array can be effectively improved, reduces the size of aerial array, and it is simple in structure, suitable for PCB, LTCC
Deng surface manufacturing process.
Brief description of the drawings
Fig. 1 is the top view of aerial array in the utility model embodiment；
Fig. 2 is the stereogram of aerial array in the utility model embodiment；
Fig. 3 is the side view of aerial array in the utility model embodiment；
Fig. 4 is the S parameter analogous diagram of aerial array in the utility model embodiment；
Fig. 5 is the antenna pattern of aerial array in the utility model embodiment；
Fig. 5 (a) is the antenna pattern in XOZ faces；
Fig. 5 (b) is the antenna pattern in YOZ faces.
Embodiment
With reference to embodiment and attached drawing, the technical solution of the utility model is described further.
The substrate that present embodiment discloses high radiation efficiency integrates medium resonator antenna array, including from it is lower toward
The first medium substrate 11 and second medium substrate 21 of upper setting, as shown in Figures 2 and 3.The upper and lower table of first medium substrate 11
Face is respectively equipped with 12 and first lower metal layer of metal layer on first, as depicted in figs. 1 and 2, on first under metal layer 12 and first
The first plated-through hole 13 through first medium substrate 11 is equipped between metal layer, the broadside of metal layer 12 is equipped with feedback on first
Electric end, is additionally provided with multiple coupling slots 123 on first, coupling slot 123 is respectively in 11 center line of first medium substrate on metal layer 12
Both sides.The upper and lower surface of second medium substrate 21 is respectively equipped with 22 and second lower metal layer of metal layer on second, gold on second
The second plated-through hole 23 through second medium substrate 21 is equipped between category 22 and second lower metal layer of layer, the second metallization is logical
Hole 23 surrounds multiple resonators.Resonator is corresponded with coupling slot 123, and there is a coupling slot in the lower section of each resonator
123。
As depicted in figs. 1 and 2, the first plated-through hole 13 has two parallel row, is symmetricly set on first medium substrate 11
The both sides of center line.Coupling slot 123 is rectangle, its long side is parallel with the first plated-through hole 13.Each resonator is by inside and outside
Two the second plated-through holes 23 of circle surround, and the shape that wherein the second plated-through hole of inner ring surrounds is square.Feed end includes
Microstrip line 121 and transition line 122.
The design theory (" substrate integration wave-guide " is referred to as " SIW ") of the utility model is described below：
The utility model realizes the energy coupling between feed SIW and resonator by coupling slot 123, and resonator works existMould, its resonant frequency f0It can be determined by following relational expression：
kx 2+ky 2+kz 2=εrdk0 2 (4)
Wherein εrdAnd μrdIt is the dielectric constant and magnetic conductivity of resonator respectively, c is the light velocity in vacuum；kx、kyAnd kzPoint
Do not represent along x, y, the wave number of z-axis, k0For the wave number of the corresponding free space of working frequency；A, b and hdIt is dielectric resonator respectively
Length, width and height, μ0It is the magnetic conductivity of free space.
Specific in present embodiment, each dimensional parameters of aerial array can be found in table 1 in Fig. 1.
Table 1：The structural parameters of aerial array
First medium substrate 11 uses Rogers RT5880 dielectric substrate of the thickness for 0.254mm, permittivity εr=
The@10GHz of the losstangenttanδ of 2.2,10GHz=0.0013.Second medium substrate 21 uses thickness as 0.635mm's
Rogers RT6010 dielectric substrates, permittivity εrThe@10GHz of the losstangenttanδ of=10.2,10GHz=0.0031.
Fig. 4 and Fig. 5 is the simulation result to aerial array by HFSS softwares.As shown in figure 4, the center frequency of aerial array
Rate is 32.6GHz, and 10-dB impedance bandwidths are about 6.2%, the design requirement before meeting, aerial array is design in millimeter wave
Ka wave bands.As shown in Fig. 5 (a), (b), simulated measurement is carried out to the radiation characteristic of the linear array, it can be seen that in 3dB wave beams
In width, the cross polarization in E faces and H faces is respectively smaller than -18dB and -20dB, and radiation efficiency is about 88%.Its higher radiation effect
Rate not only has benefited from dielectric resonator in itself, while the SIW fed is also higher radiation in the relatively low-loss of millimeter wave frequency band
Efficiency provides guarantee.
Claims (9)
1. the substrate of high radiation efficiency integrates medium resonator antenna array, it is characterised in that：Including set from lower to upper
One dielectric substrate and second medium substrate；The upper and lower surface of first medium substrate is respectively equipped with first under metal layer and first
Metal layer, the first plated-through hole through first medium substrate is equipped with first between metal layer and the first lower metal layer, the
The broadside of metal layer is equipped with feed end on one, is additionally provided with multiple coupling slots on metal layer on first, coupling slot is respectively in first Jie
The both sides of matter substrate center line；The upper and lower surface of second medium substrate is respectively equipped with metal layer and the second lower metal layer on second,
The second plated-through hole through second medium substrate, the second metallization are equipped with second between metal layer and the second lower metal layer
Through hole surrounds multiple resonators；The resonator is corresponded with coupling slot, and there is a coupling slot in the lower section of each resonator.
2. the substrate of high radiation efficiency according to claim 1 integrates medium resonator antenna array, it is characterised in that：Institute
Stating the first plated-through hole has two parallel row, is symmetricly set on the both sides of first medium substrate center line.
3. the substrate of high radiation efficiency according to claim 2 integrates medium resonator antenna array, it is characterised in that：Institute
The shape for stating coupling slot is rectangle, its long side is parallel with the first plated-through hole.
4. the substrate of high radiation efficiency according to claim 1 integrates medium resonator antenna array, it is characterised in that：Institute
Each resonator is stated to be surrounded by inside and outside two the second plated-through holes of circle.
5. the substrate of high radiation efficiency according to claim 4 integrates medium resonator antenna array, it is characterised in that：Institute
It is square to state the shape that the second plated-through hole of inner ring surrounds.
6. the substrate of high radiation efficiency according to claim 1 integrates medium resonator antenna array, it is characterised in that：Institute
Stating feed end includes microstrip line and transition line.
7. the substrate of high radiation efficiency according to claim 1 integrates medium resonator antenna array, it is characterised in that：Institute
The dielectric constant for stating first medium substrate is less than the dielectric constant of second medium substrate.
8. the substrate of high radiation efficiency according to claim 1 integrates medium resonator antenna array, it is characterised in that：Institute
The thickness for stating first medium substrate is less than the thickness of second medium substrate.
9. the substrate of high radiation efficiency according to claim 1 integrates medium resonator antenna array, it is characterised in that：Institute
It is 0.5mm to state coupling the distance between groove center line and first medium substrate center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332085.9U CN207265226U (en) | 2017-10-17 | 2017-10-17 | The substrate of high radiation efficiency integrates medium resonator antenna array |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332085.9U CN207265226U (en) | 2017-10-17 | 2017-10-17 | The substrate of high radiation efficiency integrates medium resonator antenna array |
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| CN207265226U true CN207265226U (en) | 2018-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544812A (en) * | 2019-07-18 | 2019-12-06 | 南通职业大学 | Substrate integrated dielectric resonator and antenna |
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2017
- 2017-10-17 CN CN201721332085.9U patent/CN207265226U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544812A (en) * | 2019-07-18 | 2019-12-06 | 南通职业大学 | Substrate integrated dielectric resonator and antenna |
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