CN102610900A - Multi-antenna circuit layout - Google Patents
Multi-antenna circuit layout Download PDFInfo
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- CN102610900A CN102610900A CN2011100252189A CN201110025218A CN102610900A CN 102610900 A CN102610900 A CN 102610900A CN 2011100252189 A CN2011100252189 A CN 2011100252189A CN 201110025218 A CN201110025218 A CN 201110025218A CN 102610900 A CN102610900 A CN 102610900A
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Abstract
The invention relates to a multi-antenna circuit layout which comprises a plurality of signal input endpoints with the quantity served as a first value, wherein the signal input endpoints comprise a plurality of common endpoints which are electrically coupled with a common wire, and the quantity of the common endpoints serves as a second value. A signal endpoint can produce a plurality of physical antenna circuits, and the quantity of the physical antenna circuits serves as a third value, wherein the third value is the product by subtracting the second value from the first value and then multiplying the first value. According to the antenna circuit layout, two endpoints of the physical antenna circuit can be shared; therefore, the quantity of the switches and the endpoints for the antenna circuit can be reduced, and the cost and the space of the product can be effectively reduced.
Description
Technical field
The present invention relates to a kind of multiple antenna loop, particularly relate to a kind of multiple antenna loop configuration of electromagnetic induction device.
Background technology
Electromagnetic induction device comprises an electromagnetism index equipment (electromagnetic pointer) and a digiboard (digitizertablet usually; Be called for short tablet later on).Have a concussion circuit in the electromagnetism index equipment, when near digiboard, with the variation that produces inductance value, digiboard just can calculate the coordinate position or the force value of electromagnetism index equipment according to the change amount signal of being responded to.
The central authorities of traditional handwritten numeral plate write the zone, by by loop inductance braiding form, in this zone, be with the two-sided layout of circuit board and use two antenna loops axially arranged with the array way equidistance.Generally speaking, the antenna loop of traditional electromagnetic induction device and layout designs thereof are that antenna loop is arranged in grid network with X, Y array axis equidistance, draw its absolute coordinates with inductive electromagnetic index equipment and calculating.Directions X with along two-dimensional quadrature coordinate (two-dimension orthogonalCoordinates) is an example, sees also shown in Figure 1ly, is the sketch map of traditional antenna loop configuration.Antenna loop configuration 1 has a plurality of entity antenna loop 101-108; Each entity antenna loop 101-108 has two end points; An end points is total to contact com with a ground wire respectively and is connected, and another end points is signal input point T1-T8, and it connects a switch SW 1-SW8 respectively; By this, can obtain the signal that entity antenna loop 101-108 is responded to via control in proper order to switch SW1-SW8.
Yet; Traditional needed switch of entity antenna loop can be along with the quantity of entity antenna loop linear increase; Like eight entity antenna loop 101-108 among Fig. 1, just need eight switch SW 1-SW8 of collocation and nine end points (ground wire is contact com and signal input point T1-T8 altogether), for large-area digiboard; The antenna loop quantity of its layout also increases thereupon; So need to lay more duplexer and end points, except increasing corresponding hardware cost and space, it is big that the operations area of control board also can become relatively.
This shows that above-mentioned existing antenna loop configuration obviously still has inconvenience and defective, and demands urgently further improving in structure and use.In order to solve the problem of above-mentioned existence; Relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly; But do not see always that for a long time suitable design is developed completion, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of multiple antenna loop configuration of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to; Overcome the defective that existing antenna loop configuration exists, and propose a kind of multiple antenna loop configuration of new structure, technical problem to be solved is to make it can reduce the required number of switches of antenna loop; To reduce cost effectively and the space, be very suitable for practicality.
The object of the invention and solve its technical problem and adopt following technical scheme to realize.According to a kind of multiple antenna loop configuration that the present invention proposes, it comprises a plurality of signal input part points, and its quantity is one first numerical value, and the signal input part point comprises a plurality of end points that connect altogether, itself and wiring electric property coupling altogether, and the quantity that connects end points altogether is a second value.Wherein, signal input part point can produce a plurality of entity antenna loops, and its quantity is at least a third value, and third value is that first numerical value deducts the value that multiply by this first numerical value behind the second value again.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Aforesaid multiple antenna loop configuration more comprises: one first switch group is used for switching those and connects end points altogether; And a second switch group, be used for switching except those and connect those signal input part points the end points altogether; Wherein, Switch the end points of being selected respectively by this first switch group and this second switch group; Can determine that quantity is those entity antenna loops of this third value, this third value deducts the value that multiply by this first numerical value behind this second value again for this first numerical value.
Aforesaid multiple antenna loop configuration, the wherein said first switch group adds that the used master switch quantity of this second switch group is identical with this first quantity.
Aforesaid multiple antenna loop configuration, wherein said first quantity is identical with this second quantity, and any two those signal input part points can form one of those entity antenna loops.
Aforesaid multiple antenna loop configuration more comprises: one first switch group is used for switching those signal input part points; And a second switch group, be used for switching those signal input part points except the end points of this first switch group group selection; Wherein, switching the end points of being selected respectively by this first switch group and this second switch group, is those entity antenna loops of this third value with decision quantity, and this third value is appointed the value of the permutation and combination of getting 2 for this first numerical value.
Aforesaid multiple antenna loop configuration, the wherein said first switch group and this employed switch of second switch group are shared, its number of switches is identical with this first quantity.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme; Multiple antenna loop configuration of the present invention has advantage and beneficial effect at least: by antenna loop configuration of the present invention; Through two-end-point partial common with the entity antenna loop; Can reduce required switch of antenna loop and end points quantity, the cost and the space that therefore can reduce product effectively.
In sum, the invention relates to a kind of multiple antenna loop configuration, it comprises a plurality of signal input part points; Its quantity is one first numerical value; The signal input part point comprises a plurality of end points that connect altogether, itself and wiring electric property coupling altogether, and the quantity that connects end points altogether is a second value.Wherein, signal input part point can produce a plurality of entity antenna loops, and its quantity is at least a third value, and third value is that first numerical value deducts the value that multiply by this first numerical value behind the second value again.The present invention has obvious improvement technically, and has tangible good effect, really is the new design of a novelty, progress, practicality.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of specification, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the configuration diagram of traditional antenna loop configuration.
Fig. 2 A is the configuration diagram of antenna loop configuration according to an embodiment of the invention.
Fig. 2 B is the sketch map of switch group according to an embodiment of the invention.
Fig. 3 A is the configuration diagram of antenna loop configuration according to another embodiment of the present invention.
Fig. 3 B is the sketch map of switch group according to another embodiment of the present invention.
1: antenna loop configuration 101-108: the entity antenna loop
Com: ground wire is contact T1-T8 altogether: the signal input point
SW1-SW8: switch 2: antenna loop configuration
21,22: entity antenna sets A, B: signal
Com1, com2: meet end points T1-T4 altogether: signal input part point
201: the first switch groups 202: second switch group
211-214,221-224,311-316: entity antenna loop
SW_C1, SW_C2, SW_T1, SW_T2, SW_T3, SW_T4, SW1-SW4: switch
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; To its embodiment of multiple antenna loop configuration, structure, characteristic and the effect thereof that proposes according to the present invention, specify as after.
Some embodiments of the present invention will be described in detail as follows.Yet except following description, the present invention can also be widely implements at other embodiment, and protection scope of the present invention do not receive the qualification of embodiment, and its protection range with claim is as the criterion.Moreover for clearer description being provided and being more readily understood the present invention, graphic interior each several part is not drawn according to its relative size, and some size is compared with other scale dependents and exaggerated; Incoherent detail section does not show fully yet, in the hope of graphic succinct.
One embodiment of the invention are about a kind of antenna loop configuration.Shown in Fig. 2 A, Fig. 2 A is the configuration diagram of antenna loop configuration according to an embodiment of the invention.Directions X with along two-dimensional quadrature coordinate (two-dimension orthogonal Coordinates) is an example, and antenna loop configuration 2 has two group object antenna sets 21,22, and it has four entity antenna loop 211-214,221-224 respectively.Entity antenna loop 211-214 in the entity antenna sets 21 has two end points, end points respectively with meet end points com1 altogether and be connected, another end points is signal input part point T1-T4; And the entity antenna loop 221-224 in the entity antenna sets 22 has two end points; End points respectively with meet end points com2 altogether and be connected; Another end points is signal input part point T1-T4; Wherein the entity antenna loop meeting shared signal input endpoint T1-T4 in each group obtains the signal that it is responded to by diverter switch.
Please consult in the lump shown in Fig. 2 B, Fig. 2 B is the sketch map of switch group according to an embodiment of the invention.Antenna loop configuration 2 more comprises one first a switch group 201 and a second switch group 202.Each entity antenna sets 21; Entity antenna loop in 22 meet end points com1 altogether; Com2 can and have the wiring electric property coupling altogether through the first switch group 201; The first switch group 201 is via the signal A difference diverter switch SW_C1 from wiring input altogether, and SW_C2 is to select meeting end points com1 or com2 altogether.And each entity antenna sets 21; The shared signal input part point T1-T4 of entity antenna loop in 22 can pass through second switch group 202; From the signal B difference diverter switch SW_T1 of processing unit (not shown) input, SW_T2, SW_T3; SW_T4 is to select various signals input endpoint T1-T4.
By the first switch group 201 and this second switch group 202 respectively to switch SW_C1, SW_C2, SW_T1, SW_T2, SW_T3, the control in proper order of SW_T4 can obtain entity antenna loop 211-214, the signal that 221-224 responded to.With previous example, employed signal input part point T1-T4 (comprises meeting end points com1 altogether, com2) has six; Wherein two is to meet end points com1 altogether, and com2 utilizes 2 switches to switch and meets end points com1 altogether; Com2, and utilize 4 switches to come switching signal input endpoint T1-T4, just can produce eight entity antenna loop 211-214; 221-224, and used number of switches only needs 6.If the signal input part point that uses is N, wherein M is to connect end points altogether, then can produce the individual entity antenna loop of M* (N-1), and used number of switches only needs N.
Please consulting shown in Fig. 3 A, is the configuration diagram of the antenna loop configuration of another embodiment of the present invention again.Present embodiment and Fig. 2 category-A are seemingly; The notion that all has shared end points, shown in Fig. 3 A, antenna loop configuration 3 has six entity antenna loop 311-316; Its 2 signal input part point T1-T4 has partial common, obtains the signal that it is responded to by diverter switch.
Please consult in the lump shown in Fig. 3 B, Fig. 3 B is the sketch map of switch group according to another embodiment of the present invention.With Fig. 2 category-A seemingly, present embodiment also is to select any two signal input part points T1-T4 by diverter switch, to determine a certain entity antenna loop.The first switch group and second switch group in the present embodiment combine; Come diverter switch SW1-SW4 by input signal A; To select a signal input part point; Come diverter switch SW1-SW4 by input signal B again, to select another signal input part point, any two signal input part points just can form an entity antenna loop.
Respectively to the control in proper order of switch SW1-SW4, can obtain the signal that entity antenna loop 311-316 is responded to by the switch group group.With top example; Employed signal input part point T1-T4 has four; All can be as connecing end points or general signal input part point altogether, it utilizes 4 switches to come switching signal input endpoint T1-T4, because any two end points of selecting all can form the two ends of antenna; Therefore can produce six entity antenna loop 311-316, and used number of switches only needs 4.If the signal input part point that uses then can produce the entity antenna loop quantity that N appoints the permutation and combination of getting 2 as N, i.e. N* (N-1)/2 an entity antenna loop, and used number of switches only needs N.
Detailing by above instance, should know antenna loop configuration of the present invention, is the two-end-point partial common with the entity antenna loop, to reduce required switch and the end points quantity of antenna loop, so can reduce cost effectively and the space.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (6)
1. multiple antenna loop configuration is characterized in that comprising:
A plurality of signal input part points, its quantity are one first numerical value, and those signal input part points comprise a plurality of end points that connect altogether, itself and wiring electric property coupling altogether, and wherein those quantity that connect end points altogether are a second value;
Wherein, those signal input part points can produce a plurality of entity antenna loops, and its quantity is at least a third value, and this third value deducts the value that multiply by this first numerical value behind this second value again for this first numerical value.
2. multiple antenna loop configuration according to claim 1 is characterized in that more comprising:
One first switch group is used for switching those and connects end points altogether; And
One second switch group is used for switching except those and connects those signal input part points the end points altogether;
Wherein, Switch the end points of being selected respectively by this first switch group and this second switch group; Can determine that quantity is those entity antenna loops of this third value, this third value deducts the value that multiply by this first numerical value behind this second value again for this first numerical value.
3. multiple antenna loop configuration according to claim 2 is characterized in that the wherein said first switch group adds that the used master switch quantity of this second switch group is identical with this first quantity.
4. multiple antenna loop configuration according to claim 1 is characterized in that wherein said first quantity is identical with this second quantity, and any two those signal input part points can form one of those entity antenna loops.
5. multiple antenna loop configuration according to claim 4 is characterized in that more comprising:
One first switch group is used for switching those signal input part points; And
One second switch group is used for switching those signal input part points except the end points of this first switch group group selection;
Wherein, switching the end points of being selected respectively by this first switch group and this second switch group, is those entity antenna loops of this third value with decision quantity, and this third value is appointed the value of the permutation and combination of getting 2 for this first numerical value.
6. multiple antenna loop configuration according to claim 5 is characterized in that the wherein said first switch group and this employed switch of second switch group are shared, and its number of switches is identical with this first quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100252189A CN102610900A (en) | 2011-01-18 | 2011-01-18 | Multi-antenna circuit layout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100252189A CN102610900A (en) | 2011-01-18 | 2011-01-18 | Multi-antenna circuit layout |
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| Publication Number | Publication Date |
|---|---|
| CN102610900A true CN102610900A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100252189A Pending CN102610900A (en) | 2011-01-18 | 2011-01-18 | Multi-antenna circuit layout |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1437284A (en) * | 2002-02-07 | 2003-08-20 | 天瀚科技股份有限公司 | Multiple antenna loop configuration for electromagnetic inducing system |
| EP1349055A2 (en) * | 2002-02-05 | 2003-10-01 | Aiptek International Inc. | Layout for multiple loop antennas |
| CN101546870A (en) * | 2008-03-27 | 2009-09-30 | 连展科技电子（昆山）有限公司 | Multi-antenna module |
| CN201549584U (en) * | 2009-10-28 | 2010-08-11 | 上海坤锐电子科技有限公司 | Single-grade ultrahigh-frequency electronic label antenna |
-
2011
- 2011-01-18 CN CN2011100252189A patent/CN102610900A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1349055A2 (en) * | 2002-02-05 | 2003-10-01 | Aiptek International Inc. | Layout for multiple loop antennas |
| CN1437284A (en) * | 2002-02-07 | 2003-08-20 | 天瀚科技股份有限公司 | Multiple antenna loop configuration for electromagnetic inducing system |
| CN101546870A (en) * | 2008-03-27 | 2009-09-30 | 连展科技电子（昆山）有限公司 | Multi-antenna module |
| CN201549584U (en) * | 2009-10-28 | 2010-08-11 | 上海坤锐电子科技有限公司 | Single-grade ultrahigh-frequency electronic label antenna |
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Application publication date: 20120725 |