CN205282648U - A miniature antenna for near field radio communication - Google Patents
A miniature antenna for near field radio communication Download PDFInfo
- Publication number
- CN205282648U CN205282648U CN201620021610.4U CN201620021610U CN205282648U CN 205282648 U CN205282648 U CN 205282648U CN 201620021610 U CN201620021610 U CN 201620021610U CN 205282648 U CN205282648 U CN 205282648U
- Authority
- CN
- China
- Prior art keywords
- layer
- ground connection
- metal pattern
- substrate
- pattern layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 100
- 239000002184 metal Substances 0.000 claims abstract description 100
- 239000003989 dielectric material Substances 0.000 claims abstract description 26
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims description 41
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 8
- 239000011777 magnesium Substances 0.000 claims description 8
- 239000010955 niobium Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 claims description 6
- 230000005294 ferromagnetic effect Effects 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052788 barium Inorganic materials 0.000 claims description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 15
- 230000005855 radiation Effects 0.000 abstract description 13
- 230000001939 inductive effect Effects 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 description 9
- 238000005253 cladding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- -1 aluminium (Al) Chemical class 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Abstract
The utility model provides a miniature antenna for near field radio communication, it contains an overburden, a circuit layer and a ground plane that overlaps according to the preface. The overburden is made by a dielectric material, the ground plane contains a plurality of metal blocks, in these a little metal blocks as these a little metal blocks of input pin and an output pin for switching on, just made by this dielectric material, the circuit layer is made by a ferromagnetic material. The utility model discloses a miniature antenna can reduce the coverage area of the metal block of overburden, and the antenna radiation's of the present miniature antenna of improvement inductive distance can be by the shortcoming of electromagnetic material restriction.
Description
Technical field
The utility model has about a kind of miniature antenna, relates to the miniature antenna near field communication of the distance of reaction that can improve day beta radiation especially.
Background technology
In recent years along with a large amount of uses of hand-held communication device, the transmission of wireless signals being arranged in hand-hold electronic device is (such as radio frequency identification (RadioFrequencyIdentification, RFID), near field communication (NearFieldCommunication, NFC) etc.) use on more and more. Near field communication is a kind of technology utilizing electromagnetic induction transceiving electromagnetic ripple to realize wireless near field communication between electronics, can be used for mobile phone or carries in type radio transmitting device system, such as credit card or popular subway card etc. Wireless near field communication (NFC) was one of sub-technology under RFID originally, and this application band is decided to be 13.56MHz, and designed to be less than 10cm as effective propagation path, and practical application about only has 2��5cm. Because NFC can allow equipment under noncontact prerequisite, carry out point-to-point radio communication behavior, namely have and exempt from wiring and non-directional application advantage, in addition because it has pole short range wireless transmission function, can effectively prevent from transmitting the accident on linking or being activated without under user's authorization conditions, have security feature to a certain degree, these meaningless puzzlements can be avoided. Operationally only need card or device, the convenient application characteristic of construction transmission line is got final product near reading machine, now except extensively for gate inhibition's card, stored value card ... etc. outside related application, also have an opportunity to integrate other electronic products future, and replace complicated transmission wiring and setting problem is installed. Now in its application, because of sensitive not or distance of reaction is inadequate during induction, it is often necessary to counter cover several palikinesia, could successfully be read and reach inducing function, cause the puzzlement of certain degree on using.
Fig. 7 A and Fig. 7 B is the structural representation of the miniature antenna of existing near field communication. As shown in Fig. 7 A and Fig. 7 B, this miniature antenna 50 is respectively metal cladding 51, circuit layer 52 and metal ground plane 53 from top to bottom. Metal cladding 51 with the surface of metal ground plane 53 have eight metal blocks T1��T8, B1��B8 respectively, and the eight of metal cladding 51 metal blocks T1��T8 are corresponding with eight metal blocks B1��B8 of metal ground plane respectively. Eight metal blocks T1��T8 of metal cladding 51 belong to the pin position of not conducting, and so-called not conducting refers to that metal blocks T1��T8 is not electrically connected to each other, and can not be electrically connected with the wiring of circuit layer 52. And B1 and B5 is respectively as input terminus and output terminal in the eight of metal ground plane 53 metal blocks B1��B8, all the other pin positions are also the pin position of not conducting. Metal cladding 51 is being avoided due to the asymmetric generation stress of structure in sintering process with the object of the corresponding setting of metal blocks (T1��T8, B1��B8) structure of metal ground plane 53, and the structure causing miniature antenna produces deformation.
And the production method of this miniature antenna 50 belongs to laminated ceramic technique, on making, adopt low-temp ceramics burning technology (LowTemperatureCofiredCeramics, LTCC) altogether. Metal cladding 51 and metal ground plane 53 are mainly made up of the ceramic powder with magneticsubstance, and the wiring of circuit layer 52 is mainly conductive electrode material by argent. Technique comprises ceramic powder via steps such as ball milling mixing, calcining, strip, printing, lamination, cutting, sintering, owing to the miniature antenna 50 for NFC comprises the magneto-electric behavior with inductance value, Material selec-tion must use ferromagnetic ceramic powder (Ferrite).
According to above-mentioned, the existing miniature antenna for NFC 50 times, for the overall distance of reaction of product, comprise two shortcomings: the metal blocks T1��T8 area coverage of (1) upper strata metal cladding 51 is crossed conference and reduced integrated antenna radiation field shape; (2) owing to integral product is all made up of the ferromagnetic ceramic powder with magneticsubstance, the distance of reaction of electromagnetic radiation will be limited by magneticsubstance and cannot play maximum working efficiency.
Therefore, there is a kind of demand, design new-type miniature antenna, reduce the area coverage of the metal blocks of tectum, and the shortcoming that the distance of reaction improving the sky beta radiation of existing miniature antenna can be limited by electromagnetic material.
Practical novel content
The purpose of this utility model, at a kind of Miniature Aerial Structure near field communication of offer, improves the shortcoming of distance of reaction by electromagnetic material restriction of its day beta radiation by this Miniature Aerial Structure.
According to above-mentioned object, the utility model provides a kind of miniature antenna near field communication, comprises a sequentially overlapping tectum, a circuit layer and a ground connection layer, wherein:
This tectum is made by a dielectric materials;
This ground connection layer comprises multiple metal blocks, and this ground connection layer is made by this dielectric materials;
This circuit layer is made by a ferromagnetic material.
Those metal blocks wherein connecing pin and an output connecting pin as an input in those metal blocks respectively with this circuit layer conducting.
Another object of the present utility model, at a kind of Miniature Aerial Structure near field communication of offer, reduces the area coverage of the metal blocks of tectum by this Miniature Aerial Structure, and structure improves the distance of reaction of its day beta radiation.
According to above-mentioned object, the utility model provides a kind of miniature antenna near field communication, comprises a sequentially overlapping tectum, a circuit layer and a ground connection layer, wherein:
This tectum is made by a dielectric ceramic material;
This ground connection layer comprises multiple metal blocks and this ground connection layer made by this dielectric ceramic material;
This circuit layer is made by a ferromagnetic stupalith, and sequentially comprises:
One first substrate, is arranged at the lower section of this tectum, and comprises one first metal pattern layer;
One second substrate, is arranged at the lower section of this first substrate, and comprises multiple first conducting hole, and those the first conducting holes are electrically connected with this first metal pattern layer;
One the 3rd substrate, is arranged at the lower section of this second substrate, and comprises one the 2nd metal pattern layer, and the 2nd metal pattern layer is electrically connected with those the first conducting holes;
One tetrabasal, is arranged between the 3rd substrate and this ground connection layer, and comprises multiple 2nd conducting hole and be electrically connected an input respectively and connect pin and an output connecting pin and the 2nd metal pattern layer;
Wherein this dielectric materials of this tectum and this ground connection layer is selected from the group being made up of aluminium (Al), silicon (Si), potassium (K), calcium (Ca), barium (Ba), magnesium (Mg) with niobium (Nb), and this ferromagnetic material is selected from the group being made up of iron (Fe), cobalt (Co), nickel (Ni), copper (Cu) with zinc (Zn).
By adopting dielectric materials as tectum and the ground connection layer of miniature antenna so that it is radiation profiles curve can be avoided the constraint being subject to magneticsubstance and cause overall distance of reaction reduction. And at process aspect, it may also be useful to dielectric materials saves the use of ferromagnetic material, allows cost reduce.
Accompanying drawing explanation
Figure 1A and Figure 1B is the structural representation of the miniature antenna near field communication of the present utility model.
Fig. 2 is dielectric materials of the present utility model and ferromagnetic material sintering shrinkage graphic representation.
Fig. 3 is the material striograph of the electron microscope of dielectric materials of the present utility model and ferromagnetic material.
Fig. 4 A��Fig. 4 H is the material analysis figure of the loose coloured light spectrometer of energy of dielectric materials of the present utility model and ferromagnetic material.
Fig. 5 is exploded view of the present utility model.
Fig. 6 A and Fig. 6 B is respectively existing and 2D days field of line shape figure of miniature antenna of the present utility model.
Fig. 7 A and Fig. 7 B is the structural representation of the miniature antenna of existing near field communication.
Drawing reference numeral:
10 miniature antenna 11 tectums
111 marks
12 circuit layers
121 first substrate 122 second substrates
123 the 3rd substrate 124 tetrabasals
125 first metal pattern layer 126 the 2nd metal pattern layer
127 first conducting hole, conducting holes 128 the 2nd
13 ground connection layers
301 dielectric materials 302 ferromagnetic materials
50 miniature antenna 51 metal claddings
52 circuit layer 53 metal ground planes
T1��T8, B1��B8 metal blocks
Embodiment
Hereinafter coordinating accompanying drawing and better embodiment of the present utility model, setting forth the utility model further is reach the technique means that predetermined object takes.
Figure 1A and Figure 1B is the structural representation of the miniature antenna near field communication of the present utility model. As shown in Figure 1A, miniature antenna 10 of the present utility model comprises sequentially overlapping tectum 11, circuit layer 12 and a ground connection layer 13. Upper surface at tectum 11 comprises a mark 111, and this mark 111 is for corresponding with the metal blocks of ground connection layer 13 in sintering process. As shown in Figure 1B, figure shows miniature antenna 10 of the present utility model structure from lower to upper. Comprising multiple metal blocks B1��B8 above ground connection layer 13, the metal blocks B1, the B5 that are positioned at the relative both sides of ground connection layer connect pin one and output connecting pin respectively as an input, and the pin that connects of all the other metal blocks is not conducting.
Tectum 11 adopts one or more dielectric ceramic materials (DielectricCeramic) containing the tool dielectric characteristics that the metal oxides such as aluminium (Al), silicon (Si), potassium (K), calcium (Ca), barium (Ba), magnesium (Mg) or niobium (Nb) are formed with the material of ground connection layer 13. Need to possessing inductance characteristic because being used for the miniature antenna of near field communication, circuit layer 12 material adopts the iron porcelain stupalith comprising the tool magneto-electric behavior that the metal oxides such as one or more iron content (Fe), cobalt (Co), nickel (Ni), copper (Cu) or zinc (Zn) are formed. The dielectric materials of tectum 11 and ground connection layer 13 and the ferromagnetic material of circuit layer 12, make the thin layer of 20��80 micron thickness respectively via allotment, and through heap superimposition cutting technique, finally by sintering fixed size into. In order to avoid differing materials to cause element layering, break or other defect produces because of difference in shrinkage, tectum 11 needs to select the material having and sintering matching shrinkage curve in the choice with the dielectric materials of ground connection layer 13 with the ferromagnetic material of circuit layer 12. The preferred dimensions of miniature antenna of the present utility model is 9.8 �� 0.2mm (length) * 2.5 �� 0.2mm (width) * 0.4mm (thickness), inductance is preferably 800��1500nH, the quality coefficient (also known as Q value) of integral product is preferably 20��30, antenna induction distance is better between 4.5��5.2cm, but does not limit at this.
Fig. 2 is dielectric materials of the present utility model and ferromagnetic material sintering shrinkage graphic representation. article two, curve represents the sintering curre of the ferromagnetic material of the dielectric materials of tectum 11 with ground connection layer 13 and circuit layer 12 respectively, as seen from Figure 2, tectum 11 and the dielectric materials of ground connection layer 13 arrive last densified sintering product with the ferromagnetic material of circuit layer 12 from initial shrinkage temperature and all present the curve quite mated. in addition, referring to Fig. 3 and Fig. 4 A��Fig. 4 H, Fig. 4 A��Fig. 4 H sequentially represents the energy spectrum instrument analysis chart of the metals such as oxygen (O), silicon (Si), nickel (Ni), zinc (Zn), aluminium (Al), iron (Fe), copper (Cu) and cobalt (Co) respectively. in this embodiment, dielectric materials 301 composition at B end mainly comprises silicon (Si), the metal oxides such as aluminium (Al), and mainly comprise iron (Fe) at ferromagnetic material 302 composition of A end, cobalt (Co), nickel (Ni), the oxide compounds such as copper (Cu) or zinc (Zn), and can find through Energy Dispersive Spectroscopy analysis, between dielectric materials 301 and ferromagnetic material 302, material atom there is no obvious diffusion reaction, thus provable dielectric materials 301 and ferromagnetic material 302 are after common burning, extra secondary phase can't be generated to each other and affect electrical characteristic.
Fig. 5 is the exploded view of miniature antenna of the present utility model. As shown in Figure 5, circuit layer 12 sequentially comprises first substrate 121, second substrate 122, the 3rd substrate 123 and tetrabasal 124 from top to bottom, and first substrate 121 is positioned at the lower section of tectum 11, and tetrabasal 124 is positioned at the top of ground connection layer 13. Miniature antenna 10 forms the first metal pattern layer 125 and the 2nd metal pattern layer 126 respectively on first substrate 121 and the 3rd substrate 123, and be interconnected by the 2nd conducting hole 128 in the first conducting hole 127 of adjacent second substrate 122 and tetrabasal 124, to form a complete spiral inductance. Furthermore, first substrate 121 comprises one first metal pattern layer 125, and second substrate 122 is arranged at the lower section of first substrate 121, and comprises multiple first conducting hole 127, and those the first conducting holes 127 are connected with this first metal pattern layer 125. 3rd substrate 123 is arranged at the lower section of this second substrate 122, and comprises one the 2nd metal pattern layer the 126, two metal pattern layer 126 and be electrically connected with those the first conducting holes 127. Tetrabasal 124 is arranged between the 3rd substrate 123 and this ground connection layer 13, and comprising multiple 2nd conducting hole 128, those the 2nd conducting holes 128 are electrically connected the metal blocks B1 that connects pin as input respectively with as the metal blocks B5 of output connecting pin and the 2nd metal pattern layer 126.
This first metal pattern layer, this first conducting hole, the 2nd metal pattern layer and the 2nd conducting hole are electrically connected to form an antenna body, and this antenna body connects this output connecting pin of this ground connection layer. specifically, miniature antenna 10 is the 2nd conducting hole 128 being electrically connected tetrabasal 124 by the metal blocks B1 as input terminus of ground connection layer 13, 2nd conducting hole 128 of tetrabasal 124 is electrically connected the 2nd metal pattern layer 126 of the 3rd substrate 123, the first conducting hole 127 of second substrate 122 it is electrically connected again by the 2nd metal pattern layer 126 of the 3rd substrate 123, first conducting hole 127 of second substrate 122 is electrically connected the first metal pattern layer 125 of first substrate 121, and then sequentially it is electrically connected the first conducting hole 127 from the first metal pattern layer 125, 2nd metal pattern layer 126, 2nd conducting hole 128 and ground connection layer 13 as the metal blocks B5 of output terminal to form complete spiral inductance. multiple metal wire sections of the first metal pattern layer 125 and the 2nd metal pattern layer 126 are preferably the metal wire sections of waviness in this embodiment, but in different embodiments, those metal wire sections of first metal pattern layer 125 and the 2nd metal pattern layer 126 can be different shapes, does not limit at this. in addition, those metal wire sections of first metal pattern layer 125 and the 2nd metal pattern layer 126 are interlaced arrangement, therefore the line of walking of miniature antenna 10 interlocks, make overlapping area less than less than 10%, compared to tradition in the way of flat walking line between two, walk that line is staggered can lay out good antenna performance under identical structural area.
In addition, due to the initial initial point that tectum 11 and ground connection layer 13 are dispersed for signal radiation power, therefore effect is dispersed in the radiation that the thickness of tectum 11 and ground connection layer 13 and how many meetings of ferromagnetic material directly affect antenna entirety, therefore material and the variation in thickness for this tectum 11 and ground connection layer 13 does the experimental verification of many groups to the impact of distance of reaction, its result is such as table 1. Can find that distance of reaction is had the impact shown very much by the material of tectum 11 and ground connection layer 13 and thickness according to table 1, select dielectric materials can reach 4.5��5.2cm as the antenna induction distance of tectum 11 and ground connection layer 13, and difference in thickness is less obvious to distance of reaction, on the contrary, select existing ferromagnetic material as tectum 11 and ground connection layer 13 material, the distance of reaction of integrated antenna can be fettered because of the electromagnetic property of material itself, not only distance of reaction obviously reduces and after thickness increase, causes its distance of reaction also obviously to successively decrease thereupon.
Table 1
Fig. 6 A and Fig. 6 B is respectively existing and 2D days field of line shape figure of miniature antenna of the present utility model, the otherness between the miniature antenna having and miniature antenna of the present utility model can be obviously observed by Fig. 6 A and Fig. 6 B, because of the production method of existing miniature antenna, the signal radiation of miniature antenna, because being bound in ferrite/ceramic, causes overall radiation length will be greatly reduced (the most about 0.00004dB). And the tectum of miniature antenna of the present utility model and ground connection layer are made by dielectric materials, miniature antenna is avoided to be subject to the constraint of magneticsubstance, making overall radiation length promote (the most about 0.006dB), bigger dB value expression can reach distance of reaction far away.
In sum, the utility model adopts dielectric materials but not ferromagnetic material as the tectum of miniature antenna and ground connection layer so that it is radiation profiles curve can be avoided the constraint being subject to magneticsubstance and cause overall distance of reaction reduction. And at process aspect, it may also be useful to dielectric materials saves the use of ferromagnetic material, allows cost reduce. In addition, miniature antenna of the present utility model makes overlapping area less than less than 10% to walk in the way of line interlocks, and can lay out good antenna performance.
Below it is only better embodiment of the present utility model, not the utility model is done any restriction in form, although the utility model discloses as above with better embodiment, but and be not used to limit the utility model, any this area related personnel, in the scope not departing from technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or it is modified to the equivalent embodiment of equivalent variations, in every case it is the content not departing from technical solutions of the utility model, the any simple modification above embodiment done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. the miniature antenna near field communication, it is characterised in that, comprise a sequentially overlapping tectum, a circuit layer and a ground connection layer:
This tectum is made by a dielectric materials;
This ground connection layer, comprises multiple metal blocks, and this ground connection layer is made by this dielectric materials;
This circuit layer, is arranged between this tectum and this ground connection layer, is made by a ferromagnetic material;
Those metal blocks wherein connecing pin and an output connecting pin as an input in those metal blocks respectively with this circuit layer conducting.
2. as claimed in claim 1 for the miniature antenna of near field communication, it is characterised in that, this circuit layer comprises:
One first substrate, is arranged at the lower section of this tectum, and comprises one first metal pattern layer;
One second substrate, is arranged at the lower section of this first substrate, and comprises multiple first conducting hole, and those the first conducting holes are electrically connected with this first metal pattern layer;
One the 3rd substrate, is arranged at the lower section of this second substrate, and comprises one the 2nd metal pattern layer, and the 2nd metal pattern layer is electrically connected with those the first conducting holes;
One tetrabasal, is arranged between the 3rd substrate and this ground connection layer, and comprises multiple 2nd conducting hole and be electrically connected this input respectively and connect pin and this output connecting pin and the 2nd metal pattern layer.
3. as claimed in claim 2 for the miniature antenna of near field communication, it is characterized in that, this first metal pattern layer, this first conducting hole, the 2nd metal pattern layer and the 2nd conducting hole are electrically connected to form an antenna body, and this antenna body connects this output connecting pin of this ground connection layer.
4. as claimed in claim 3 for the miniature antenna of near field communication, it is characterized in that, this first metal pattern layer and the 2nd metal pattern layer comprise multiple metal wire sections respectively, respectively this metal wire sections is waviness, and the interlaced arrangement of those metal wire sections of those metal wire sections of this first metal pattern layer and the 2nd metal pattern layer.
5. as claimed in claim 4 for the miniature antenna of near field communication, it is characterised in that, this first metal pattern layer of this first substrate and the 3rd substrate and the overlapping area of the 2nd metal pattern layer are less than less than 10%.
6. as claimed in claim 1 for the miniature antenna of near field communication, it is characterized in that, this dielectric materials of this tectum and this ground connection layer is selected from the group being made up of aluminium (Al), silicon (Si), potassium (K), calcium (Ca), barium (Ba), magnesium (Mg) with niobium (Nb).
7. as claimed in claim 1 for the miniature antenna of near field communication, it is characterized in that, this ferromagnetic material of this circuit layer is selected from the group being made up of iron (Fe), cobalt (Co), nickel (Ni), copper (Cu) with zinc (Zn).
8. as claimed in claim 1 for the miniature antenna of near field communication, it is characterised in that the thickness of this tectum and this ground connection layer is between 20��80 microns.
9. the miniature antenna near field communication, it is characterised in that, comprise a sequentially overlapping tectum, a circuit layer and a ground connection layer:
This tectum is made by a dielectric ceramic material;
This ground connection layer, comprises multiple metal blocks, and this ground connection layer is made by this dielectric ceramic material;
This circuit layer, is arranged between this tectum and this ground connection layer, is made by a ferromagnetic stupalith, and sequentially comprises:
One first substrate, is arranged at the lower section of this tectum, and comprises one first metal pattern layer;
One second substrate, is arranged at the lower section of this first substrate, and comprises multiple first conducting hole, and those the first conducting holes are electrically connected with this first metal pattern layer;
One the 3rd substrate, is arranged at the lower section of this second substrate, and comprises one the 2nd metal pattern layer, and the 2nd metal pattern layer is electrically connected with those the first conducting holes;
One tetrabasal, is arranged between the 3rd substrate and this ground connection layer, and comprises multiple 2nd conducting hole and be electrically connected an input respectively and connect pin and an output connecting pin and the 2nd metal pattern layer;
Wherein this dielectric ceramic material of this tectum and this ground connection layer is selected from the group being made up of aluminium (Al), silicon (Si), potassium (K), calcium (Ca), barium (Ba), magnesium (Mg) with niobium (Nb), and this ferromagnetic stupalith of this circuit layer is selected from the group being made up of iron (Fe), cobalt (Co), nickel (Ni), copper (Cu) with zinc (Zn).
10., as claimed in claim 9 for the miniature antenna of near field communication, wherein the thickness of this tectum and this ground connection layer is between 20��80 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021610.4U CN205282648U (en) | 2016-01-11 | 2016-01-11 | A miniature antenna for near field radio communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021610.4U CN205282648U (en) | 2016-01-11 | 2016-01-11 | A miniature antenna for near field radio communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205282648U true CN205282648U (en) | 2016-06-01 |
Family
ID=56067189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620021610.4U Active CN205282648U (en) | 2016-01-11 | 2016-01-11 | A miniature antenna for near field radio communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205282648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505301A (en) * | 2016-09-26 | 2017-03-15 | 上海德门电子科技有限公司 | Lamination NFC antenna and electronic equipment and using method |
-
2016
- 2016-01-11 CN CN201620021610.4U patent/CN205282648U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505301A (en) * | 2016-09-26 | 2017-03-15 | 上海德门电子科技有限公司 | Lamination NFC antenna and electronic equipment and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10658870B2 (en) | Combo antenna unit and wireless power receiving module comprising same | |
| KR101197684B1 (en) | Magnetic Sheet, RF Identification Antenna Having Radiation Pattern Incorporated into Magnetic Sheet, and Method for Producing the Same | |
| CN105514589B (en) | Communication terminal device | |
| CN105958183B (en) | Antenna assembly, the battery pack with antenna and communication terminal | |
| CN102027637B (en) | Composite magnetic antenna and RF label, the metal parts being provided with this composite magnetic antenna or RF label, metal tools | |
| JP5403279B2 (en) | RF tag manufacturing method, magnetic antenna manufacturing method, substrate mounted with the RF tag, and communication system | |
| CN107371387A (en) | Wireless charging heat-sink unit and the wireless power charging module for including it | |
| WO2010087413A1 (en) | Magnetic antenna, rf tag, and substrate having the rf tag mounted thereon | |
| CN109196969A (en) | Mixed metal plate for magnetic screen and the wireless power transmission module including it | |
| CN106971825A (en) | Coil component | |
| CN107591231B (en) | Magnetic sheet and electronic device | |
| KR101657032B1 (en) | Ferrite laminate sheet | |
| KR20160100786A (en) | Shielding unit for combo antenna and wireless charging module having the same | |
| CN102243721A (en) | Non-contact communication medium, antenna pattern configuring medium, communication device and method | |
| CN207517888U (en) | Antenna assembly, card-type information medium and communication terminal | |
| CN205282648U (en) | A miniature antenna for near field radio communication | |
| CN110214396B (en) | Electronic device, antenna and RF tag | |
| TW201248994A (en) | Antenna device | |
| JP4626413B2 (en) | Composite magnetic material, coil antenna structure, and portable communication terminal | |
| CN106684563A (en) | Antenna module and mobile device with the same | |
| KR101331406B1 (en) | Ribbon-type magnetic sheet | |
| CN101710642A (en) | Low-temperature co-fired ceramic mobile phone antenna with three frequency bands | |
| KR102505439B1 (en) | Magnetic Sheet and Electronic Device | |
| WO2017038884A1 (en) | Magnetic antenna and antenna device | |
| CN107359411A (en) | Device based on electronic equipment rear shell radiation NFC signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190529 Address after: 1st Floor, 38 Keyi Street, Zhunan Town, Miaoli County, Taiwan, China Patentee after: Taiwan Hebang Electronics Co., Ltd. Address before: Taipei City, Taiwan, China Patentee before: Huaxin Science and Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200624 Address after: Jiangsu city in Suzhou Province town of Xiangcheng District Wong Tai Pan Yang Industrial Park Patentee after: INPAQ TECHNOLOGY (SUZHOU) Co.,Ltd. Address before: 1st Floor, 38 Keyi Street, Zhunan Town, Miaoli County, Taiwan, China Patentee before: Taiwan Hebang Electronics Co.,Ltd. |