CN101895008B - Miniature antenna - Google Patents
Miniature antenna Download PDFInfo
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- CN101895008B CN101895008B CN 200910143217 CN200910143217A CN101895008B CN 101895008 B CN101895008 B CN 101895008B CN 200910143217 CN200910143217 CN 200910143217 CN 200910143217 A CN200910143217 A CN 200910143217A CN 101895008 B CN101895008 B CN 101895008B
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Abstract
The invention discloses a miniature antenna, which is prepared by the following steps: installing a first conductive electrode layer on a first surface of a matrix made of a microwave material, installing a second conductive electrode layer on a second surface opposite to the first surface, forming an interlayer space by adopting the mode that the first electrode layer and the second electrode layer are partially overlapped correspondingly to generate required capacitance, connecting the first electrode layer with a signal feed-in line and connecting the second electrode layer with an earth wire. Therefore, an antenna body can provide the function of transceiving signals. An antenna which has small volume, simple structure and good signal transceiving efficiency and can change resonant frequency by adjusting the capacitance can be obtained when the volume, thickness and size of the matrix change or the overlapped area of the two electrode layers changes.
Description
Technical field
The present invention is relevant a kind of antenna structure, particularly relevant a kind of miniature antenna structure that is used on the radio communication product.
Background technology
Being indebted to the wireless communication technique progress concerns fast, mobile phone, WLAN (WLAN) and satellite navigation individualized action electronic products such as (GPS) are also flourish, and vast market competition and consumption end are to higher-quality pursuit, make the action electronic product except that the electrical characteristic of standard, more be conceived to pursue design creative in the moulding.Relatively,, change embedded type gradually into and hide design also by the design of otherwise exposed formula as the antenna of receiving/send out the signal important document.Yet, the antenna in the inner small space of casing of hiding oneself for moulding, its purpose still is good and signal clearly in the sub-product transmitting-receiving of power supply.Again, the common person of concealed antenna is two kinds of unipole antenna (Monopole) and PIFA (planar Inverted F Antenna).Monopole antenna structure is simple, low price, but because of the restriction of antenna efficiency problem, antenna length can't reduce effectively, and therefore, device seems more not attractive in appearance when installing body in action, and the market use amount reduces gradually.In addition, the PIFA antenna is called planar inverted F-shape antenna again, and it can be hidden in the running gear internal body, and changes dull and stereotyped how much external forms with fuselage, and the emitting structural broad, have bigger operation frequency range, so the application on the market is also comparatively extensive.Yet, no matter be that unipole antenna or PIFA antenna all are a kind of electric field antenna, be subjected to the influence that the dielectric material in the near field produces reactive effect easily, cause the frequency coordination misalignment, just, all assemblies near antenna all might influence antenna, have reduced an antenna receipts/signal efficient, make antenna noise raise.
Therefore, at the problems referred to above, the present invention proposes a kind of miniature antenna, and it has the characteristic that volume is little and limit to the electric current channelling simultaneously, in order to improve the disappearance of prior art.
Summary of the invention
Main purpose of the present invention provides a kind of miniature antenna, and its design principle is to utilize the overlapping region of electrode layer to form the mezzanine space with series capacitor effect, further promotes antenna capacity, and antenna volume is contracted to littler.
Secondary objective of the present invention is that a kind of miniature antenna is being provided, and it utilizes the size that changes electrode layer overlapping region mode control capacitance amount, revises resonance frequency easily.
Another purpose of the present invention is that a kind of miniature antenna is being provided, and its volume is little, simple in structure, and the mobile periphery that is confined to antenna of electric current effectively can be avoided the interference phenomenon that produces between antenna and near dielectric.
For reaching above-mentioned purpose, the present invention discloses a kind of miniature antenna, comprise at least one matrix, at least one first electrode layer and at least one the second electrode lay, and matrix is to make with microwave material, has a relative first surface and a second surface, is provided with respectively for this first electrode layer and this second electrode lay, again, this two electrode layer has conductivity, and first electrode layer is for connecting a signal feed-in line, and the second electrode lay is for connecting an earth connection.This two electrode layer is partly corresponding overlapping, and on matrix, form mezzanine space, and then can further reduce antenna size and volume with electric capacity effect, and the signal interference problem that can avoid the induced current channelling of known antenna to be caused.
In addition, the present invention can be applied in the multifrequency signal and receive, that is, a plurality of matrixes are set, on a bearing substrate with respect to each matrix, build respectively and put foregoing first electrode layer and the second electrode lay, so can build and put a plurality of miniature antennas, adjust the shape and the design of each antenna in the bearing substrate last time of a small size, or the dielectric constant of matrix, its resonance frequency can be changed, the purpose of multifrequency signal receiving/transmission can be reached.
Beneath by the appended graphic explanation in detail of specific embodiment cooperation, when the effect that is easier to understand purpose of the present invention, technology contents, characteristics and is reached.
Description of drawings
Fig. 1 is the schematic perspective view of one embodiment of the invention.
Fig. 2 is the antenna applications schematic diagram of Fig. 1.
Fig. 3 is the antenna Another Application schematic diagram of Fig. 1.
Fig. 4 is that the antenna of Fig. 1 one is used schematic diagram again.
Fig. 5 (a) figure is that antenna of the present invention adopts the thick film processing procedure that the schematic diagram of the second electrode lay is set on a bearing substrate.
Fig. 5 (b) figure is that hookup 5 (a) figure adopts the thick film processing procedure that the schematic diagram of matrix is set on the second electrode lay.
Fig. 5 (c) figure is that hookup 5 (b) figure adopts the thick film processing procedure that the schematic diagram of first electrode layer is set on bearing substrate and matrix.
Fig. 5 (d) figure is the end face end view that hookup 5 (c) figure shows finished product.
Another implements the stereogram of aspect to Fig. 6 for the present invention.
Fig. 7 is the schematic diagram of another enforcement aspect of miniature antenna of the present invention.
Fig. 8 (a) figure is the top view of an enforcement aspect of the present invention.
Fig. 8 (b) figure is continuity Fig. 8 (a) figure, shows the bottom view of this miniature antenna.
Fig. 9 (a) figure is continuity Fig. 8 (a) figure and Fig. 8 (b) figure, shows the schematic perspective view when this miniature antenna is incorporated into a wiring board.
Fig. 9 (b) figure is continuity Fig. 8 (a) figure and Fig. 8 (b) figure, is the schematic bottom view of expression the second electrode lay and wiring board bonding state.
Among the figure:
10 matrixes
11 first surfaces, 12 second surfaces
20,20 ' first electrode layer 21,21 ' first termination electrode
30,30 ' the second electrode lay 31,31 ' second termination electrode
40 bearing substrates
41 termination electrodes, 42 termination electrodes
50 wiring boards
51,51 ' signal feed-in line 52,52 ' earth connection
53 earth connections
Embodiment
The present invention utilizes microwave material to be easy to generate the characteristic of capacity effect, makes a miniature antenna, effectively reduces antenna size and volume, and electric current is confined to arround the antenna interference of avoiding induced current channelling in the circuit board to be caused.Thus, can guarantee the service efficiency of miniature antenna.And miniature antenna of the present invention, utilize two conductive electrode layers to be arranged on the mode on relative two surfaces of matrix,, form interlayer at matrix with capacitor effect with the overlapped part of electrode layer, more can further promote the capacitance of antenna, antenna volume can be contracted to littler.
Fig. 1 is the wherein schematic perspective view of an enforcement aspect of the present invention, as shown in the figure, a kind of miniature antenna, it includes a matrix 10, one first electrode layer 20 and a second electrode lay 30.This matrix 10 is to adopt the microwave material manufacturing, to produce required capacitance.This microwave material can be the composite of pottery, glass, magnetic material, macromolecular material or above material combination.And this matrix 10 is microscler cube, so have a relative first surface 11 and a second surface 12.In addition, first electrode layer 20 and the second electrode lay 30 are to make with the metal with conductivity, as gold, silver, copper etc., or the nonmetallic materials of other tool conductivity, this two electrode 20,30 is separately positioned on matrix 10 first surfaces 11 and the second surface 12, and 20,30 of electrode layers have overlapping areas.Utilize upper/ lower electrode 20,30 laps to produce zone and increase capacitance with capacitor function.Moreover two electrode layers, 20,30 relative outer ends extend to respectively on matrix 10 1 end faces, and first electrode layer 20 forms one first termination electrode 21 in this end, and the second electrode lay 30 forms one second termination electrode 31 in this end.Thus, when this miniature antenna combines with a wiring board 50, just as shown in Figure 2, first termination electrode 21 of first electrode layer 20 can be connected with the signal feed-in line 51 of wiring board 50, second termination electrode 31 of the second electrode lay 30 can be connected with the earth connection 52 of wiring board 50, thereby has the signal receiving/transmission effect.And in the practical application, the termination electrode 21,31 of two electrode layers 20,30 is provided with the position, then based on the actual demand of the electronic installation that takes concerted action.But if represented, make the termination electrode 21 of first electrode layer 20, except the signal feed-in line 51 of connection line plate 50 as previously described, also be connected to an earth connection 53 of wiring board 50 simultaneously, more can reduce antenna resonance frequency as Fig. 3.Fig. 4 then is this miniature antenna and the schematic diagram of the different combinations of wiring board.First electrode layer 20 also is via first termination electrode 21, connects feed-in line 51 and earth connection 53; The second electrode lay 30 then via second termination electrode 31, is connected with the earth connection 52 of wiring board 50.Although as Fig. 4, change direction that this miniature antenna is arranged on wiring board 50 receiving signal, but it does not still break away from main spirit of the invention process, also belongs to of the invention process a kind of.
In addition, miniature antenna of the present invention has the multiple means that achieve the goal with prior art.So the finished product of the equal benefit of analog structure tool ought to all be regarded equivalence of the present invention as and implement.For example, Fig. 5 (a) figure to Fig. 5 (d) figure is the processing procedure explanation of adopting the thick film process technique.Scheme with reference to figure 5 (a) earlier, be on the upper surface of a bearing substrate 40, make a plurality of the second electrode lays 30 with the thick film process technique, these bearing substrate 40 compositions can be the composite materials of pottery, glass, magnetic material, macromolecular material or above material.Scheme with reference to figure 5 (b) again, dielectric material is formed matrix 10 with the thick film process technique on the second electrode lay 30 and bearing substrate 40, continue, consult Fig. 5 (c) figure, use the thick film process technique on bearing substrate 40 and matrix 10, to make first electrode layer 20 once more, the antenna profile of processing procedure production just shows as Fig. 5 (d) figure according to this, builds first electrode layer, 20 parts and the second electrode lay 30 parts of putting in each matrix 10 upper and lower surfaces and forms relative overlapping regions.The manufacture method of its processing procedure is simply easy, and can simultaneously a plurality of antenna bodies be produced on simultaneously a bearing substrate 40 surfaces.After cutting, can be in the other manufacturing terminal electrode 41,42 of the two side faces of bearing substrate 40, convenient antenna is connected with earth connection 52 with signal feed-in line 51 on the wiring board 50.Certainly execution mode does not exceed with above-mentioned, and matrix and two electrode layers also can utilize sputter, or thin film manufacture process technology such as evaporation is made.Or, method is sticked together in the thin slice utilization of dielectric material and electric conducting material, paste surface in regular turn at bearing substrate 40, put the antenna structure that shows as Fig. 5 (d) figure to build, or mix utilization film, thick film, and adhesion process build and put antenna structure, all being the production method that can change enforcement, also is a kind of method of simple and easy enforcement.
Moreover antenna of the present invention varies in size according to capacitance, can revise resonance frequency easily, also we can say, see through to change the shape of antenna and design or matrix 10 dielectric constants and can receive different frequency.With reference to Fig. 6, be that the part zone with two electrode layers 20,30 is made into tortuous wire, in order to do the length that prolongs antenna electrode layer 20,30, promptly can see through the length of antenna conductor or the variation of capacitance change the antenna receiving-sending frequency.Cooperate above-mentioned process technique according to aforementioned principles again, cooperate Fig. 7 again, the present invention not only can manufacture the arranged antenna simultaneously in a large number on bearing substrate 40, and according to the demand on actual the use, when using as the single-frequency signal, can a plurality of miniature antennas of putting will be built simultaneously on the bearing substrate 40, cut into the miniature antenna (similar Fig. 5 (d) figure) that most single single-frequency are used, or a plurality of combination of antennas (the enforcement aspect shown in similar Fig. 5 (c) figure) on a bearing substrate 40, via the shape that changes respective antenna and the dielectric constant of design or matrix 10, can on a bearing substrate 40, obtain the integrated antenna body of a plurality of different frequencies, in order to do being applied in the electronic installation that needs transmitting-receiving multifrequency signal.
Illustrate that again the inventor uses one of above-mentioned principle institute actual fabrication to have the combined type Miniature Aerial Structure of two resonance frequencys.With reference to Fig. 8 (a) figure and Fig. 8 (b) figure, this miniature antenna comprises a matrix 10, and on the first surface 11 of its matrix 10, make two first electrode layers 20,20 ', on the second surface 12 of its matrix 10, make two the second electrode lays 30,30 ', this 2 first electrode layer 20,20 ' two the second electrode lays 30 therewith, between 30 ', the zone that overlaps respectively, utilize that lap produces the zone with capacitor function and increases capacitance between upper/ lower electrode 20 and 20 ' and 30 and 30 ', the size of adjusting the individual electrode layer with and the size of overlapping region, can produce combined type miniature antenna with two resonance frequencys.Again, this 2 first electrode layer 20,20 ' and extend each self-forming one first termination electrode 21,21 ' towards the end face of matrix 10 respectively; Cooperate Fig. 9 (a) figure and Fig. 9 (b) figure, when this miniature antenna combines with wiring board 50 again, also mode as described above, make this 2 first termination electrode 21,21 ' be connected with two feed-in lines 51,51 ' and two earth connections 52,52 ' of wiring board 50 respectively, this two the second electrode lay 30,30 ' is then connected wires with another of wiring board 50 and 53 is connected, when making this combined type miniature antenna be applied in two different frequency ranges.Present embodiment is with two frequency ranges example as an illustration, according to the principle of this patent, makes the combined antenna that surpasses more than two frequency ranges, still belongs to the scope of this patent certainly.In sum, the advantage of miniature antenna of the present invention is to utilize microwave material to make matrix, produces capacitance by its physical characteristic, and the channelling phenomenon of limitation electric current, improves the current loss that reactive effect causes near field effectively.Secondly, the electrode layer overlapping region more forms a series capacitance, make this kind Antenna Design significantly reduced volume but still have good signal receiving/transmission ability.Moreover, see through to change first electrode layer and the second electrode lay and form the size in interlayer zone in matrix, for example change matrix thickness size, electrode layer overlapping region size, perhaps mode such as electrode layer shape promptly can be adjusted capacitance change antenna resonance frequency easily.Again, this antenna is except characteristic simple in structure, and little with volume simultaneously, every advantages such as cost is low, service efficiency is high, convenient a large amount of productions.
The above is by embodiment characteristics of the present invention to be described, its purpose makes the personnel that have the knack of this technology, can understand content of the present invention and enforcement according to this, and non-limiting claim of the present invention.So other does not break away from disclosed spirit, and the same equivalence of finishing is modified or is revised, and must be included in the claim of the present invention.
Claims (8)
1. miniature antenna, it is to connect at least one signal feed-in line and at least one earth connection, with the transmitting-receiving signal, this miniature antenna comprises:
The matrix of at least one microwave material, it is to have opposite first and second surface;
First electrode layer of at least one tool conductivity, it is located at the first surface of this matrix, and this first electrode layer is that wherein this first electrode layer has one first termination electrode for this signal feed-in line of connection, and this signal feed-in line is to connect this first termination electrode; And
The second electrode lay of at least one tool conductivity, it is located at the second surface of this matrix, this the second electrode lay is for connecting this earth connection, and this second electrode lay has partly corresponding overlapping with this first electrode layer, wherein this second electrode lay has one second termination electrode, and this earth connection is to connect this second termination electrode;
Wherein this first termination electrode also connects this earth connection simultaneously except that connecting this signal feed-in line.
2. according to 1 described miniature antenna of claim the, it is characterized in that: wherein the material of this matrix is to be ceramic material, or glass material, or magnetic material, or macromolecular material, or the composite material of above material; This first electrode layer and this second electrode lay are for having the metal electrode layer of conductivity, or the nonmetal electrode layer of tool conductivity.
3. according to 1 described miniature antenna of claim the, it is characterized in that: wherein this first electrode layer and this second electrode lay are with the thick film processing procedure, or thin film manufacture process, or the mode of pasting conductive foil, be separately positioned on this first surface and this second surface of this matrix.
4. miniature antenna, it is to connect at least one signal feed-in line and at least one earth connection, with the transmitting-receiving signal, this miniature antenna comprises:
The matrix of at least one microwave material, it is to have opposite first and second surface;
First electrode layer of at least one tool conductivity, it is located at the first surface of this matrix, and this first electrode layer is for connecting this signal feed-in line;
The second electrode lay of at least one tool conductivity, it is located at the second surface of this matrix, and this second electrode lay is for this earth connection of connection, and this second electrode lay has partly corresponding overlapping with this first electrode layer; And
One bearing substrate, it has two termination electrodes; This second electrode lay is with the thick film processing procedure, or thin film manufacture process, or the mode of sticking together conductive foil, is located at this bearing substrate upper surface, and its this second electrode lay also connects this this termination electrode of bearing substrate one; This matrix is with the thick film processing procedure, or thin film manufacture process, or is pasting the mode of dielectric sheet, is arranged on this second electrode lay and this bearing substrate; This first electrode layer again with the thick film processing procedure, or thin film manufacture process, or the mode of pasting conductive foil, is arranged on this first surface of this bearing substrate and this matrix, and this first electrode layer, connects another this termination electrode of this bearing substrate.
5. miniature antenna is characterized in that: it is to connect at least one signal feed-in line and at least one earth connection, and with the transmitting-receiving signal, this miniature antenna comprises:
One bearing substrate;
The second electrode lay of plural number tool conductivity is arranged on this bearing substrate, and this second electrode lay is for connecting this earth connection;
The matrix of plural number microwave material, each this matrix has a relative first surface and a second surface, and respectively this matrix is arranged on this second electrode lay and this bearing substrate with its The second surface; And
First electrode layer of plural number tool conductivity is separately positioned on this first surface and this bearing substrate of this matrix, and respectively this first electrode layer is partly corresponding overlapping with relative this second electrode lay, and this first electrode layer is also for connecting this signal feed-in line.
6. according to 5 described miniature antennas of claim the, it is characterized in that: wherein respectively this first electrode layer has one first termination electrode, and respectively this first termination electrode is to be connected with this signal feed-in line, or is connected with this signal feed-in line and this earth connection; Respectively this second electrode lay has one second termination electrode, is for connecting this earth connection.
7. according to 5 described miniature antennas of claim the, it is characterized in that: wherein the material of this bearing substrate is a pottery, or glass, or magnetic material, or macromolecular material, or the composite material of above material; The material of this matrix is a pottery, or glass, or magnetic material, or macromolecular material, or the composite material of above material; The material of this first electrode layer and this second electrode lay be having the metal material of conductivity, or the nonmetallic materials of other tool conductivity is made.
8. according to 5 described miniature antennas of claim the, it is characterized in that: this first electrode layer wherein is to adopt the thick film processing procedure, or thin film manufacture process, or sticks together method, is formed at this matrix and this bearing substrate upper surface respectively; This second electrode lay is to adopt the thick film processing procedure, or thin film manufacture process, or sticks together method, is formed at this bearing substrate upper surface respectively; And this matrix adopting thick film processing procedure, or thin film manufacture process, or stick together method, be formed at the upper surface of this second electrode lay and this bearing substrate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910143217 CN101895008B (en) | 2009-05-20 | 2009-05-20 | Miniature antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910143217 CN101895008B (en) | 2009-05-20 | 2009-05-20 | Miniature antenna |
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| CN101895008A CN101895008A (en) | 2010-11-24 |
| CN101895008B true CN101895008B (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910143217 Active CN101895008B (en) | 2009-05-20 | 2009-05-20 | Miniature antenna |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079040A1 (en) | 2010-12-09 | 2012-06-14 | Agc Automotive Americas R&D, Inc. | Window assembly having a transparent layer with a slot for a transparent antenna element |
| CN103943947A (en) * | 2014-03-18 | 2014-07-23 | 江苏中利电子信息科技有限公司 | Multifunctional miniature broadband antenna |
| CN109273843B (en) * | 2018-09-19 | 2020-12-25 | 深圳市泰衡诺科技有限公司 | Antenna and mobile terminal |
| CN111916907A (en) * | 2020-08-18 | 2020-11-10 | 深圳市明昕技术有限公司 | Micro device capable of achieving tolerance and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7019695B2 (en) * | 1997-11-07 | 2006-03-28 | Nathan Cohen | Fractal antenna ground counterpoise, ground planes, and loading elements and microstrip patch antennas with fractal structure |
| US7161540B1 (en) * | 2005-08-24 | 2007-01-09 | Accton Technology Corporation | Dual-band patch antenna |
| CN101222083A (en) * | 2007-01-12 | 2008-07-16 | 维通电子股份有限公司 | Plane type antenna apparatus |
| EP2107635A1 (en) * | 2008-03-31 | 2009-10-07 | TDK Corporation | Two-tier wide band antenna |
-
2009
- 2009-05-20 CN CN 200910143217 patent/CN101895008B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7019695B2 (en) * | 1997-11-07 | 2006-03-28 | Nathan Cohen | Fractal antenna ground counterpoise, ground planes, and loading elements and microstrip patch antennas with fractal structure |
| US7161540B1 (en) * | 2005-08-24 | 2007-01-09 | Accton Technology Corporation | Dual-band patch antenna |
| CN101222083A (en) * | 2007-01-12 | 2008-07-16 | 维通电子股份有限公司 | Plane type antenna apparatus |
| EP2107635A1 (en) * | 2008-03-31 | 2009-10-07 | TDK Corporation | Two-tier wide band antenna |
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