CN103199333A - Antenna module supporting near field communication (NFC) and wireless power consortium (WPC) multiplexing - Google Patents
Antenna module supporting near field communication (NFC) and wireless power consortium (WPC) multiplexing Download PDFInfo
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- CN103199333A CN103199333A CN201310102871XA CN201310102871A CN103199333A CN 103199333 A CN103199333 A CN 103199333A CN 201310102871X A CN201310102871X A CN 201310102871XA CN 201310102871 A CN201310102871 A CN 201310102871A CN 103199333 A CN103199333 A CN 103199333A
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Abstract
The invention discloses an antenna of near field communication (NFC) and wireless power consortium (WPC) multiplexing. The antenna comprises a wireless charging coil, wireless charging contacts, an NFC coil, NFC contacts and insulation parts, wherein the wireless charging contacts are arranged at two ends of the wireless charging coil, the NFC coil is connected to the wireless charging coil through two connecting points, the portion between the two connecting points is a common portion of the NFC coil and the wireless charging coil, the NFC contacts are arranged at two ends of the NFC coil, and the insulation parts are arranged between the NFC contacts and the two connecting points of NFC coil and/or between the wireless charging contacts and the wireless charging coil. The invention further discloses an antenna module supporting the NFC and WPC multiplexing, and the antenna module comprises the antenna of the NFC and WPC multiplexing and magnetic material. Besides, the invention further provides a mobile terminal using the antenna module supporting the NFC and WPC multiplexing. The antenna module supporting the NFC and WPC multiplexing further reduces the size of the antenna and reduces the occupied space of the antenna.
Description
Technical field
The present invention relates to the antenna for mobile phone technical field, particularly a kind of NFC and multiplexing Anneta module of WPC supported.
Background technology
Antenna is a kind of device that utilizes frequency characteristic to receive and transmit.In recent years, development along with wireless terminal and mechanics of communication, wireless near field communication (Near Field Communication, NFC) and the wireless charging technology, especially wireless charging alliance (Wireless Power Consortium, WPC) the Qi standard of Ti Chuing has obtained increasing research and application.
The NFC technology starts from RFID tag (Radio Frequency Identify Detection) technology, and namely combining induction card reader and induction type card on one chip are realized point-to-point data exchanging function.The NFC chip is contained on the portable terminals such as mobile phone, can realize the function of doit electronic payment and Intelligent Recognition and transfer of data.By the NFC function, mobile phone, PDA can realize wireless connections and data sharing between many equipment such as computer easily.
The wireless charging technology is late than the NFC starting, but recently along with the Optimus LTE2 grade of the Galaxy S3 of Samsung and the lg electronics core technology importing wireless charging technology of smart mobile phone from generation to generation, wireless charging market begins formal unlatching, HTC subsequently, Nokia, Samsung is all released the portable terminal of supporting wireless charging, and following wireless charging will be expected to become the main flow charging technique of smart mobile phone.Recently wireless charging begins to enter automobile, and the public place takes the lead in the pilot wireless charging device in the access of its shops as McDonald, and Toyota Motor starts wireless charging compatible equipment in the car.
Along with light, the thin designer trends of portable terminals such as mobile phone, NFC and wireless charging are multiplexing to come into one's own.At present, usually NFC antenna and wireless charging antenna are not put together overlappingly in the prior art, as Fig. 1, centering coil is the wireless charging coil, peripheral coil is NFC near-field communication coil, but NFC antenna and wireless charging antenna are still separate physically in this version, though both have realized to a certain degree multiplexing, but still need take bigger space.
Summary of the invention
The object of the invention is to provide a kind of novel support NFC and the multiplexing Anneta module of WPC, further dwindles the antenna occupation space.
Technical scheme of the present invention is as follows:
A kind of NFC and WPC multiplex antenna comprise:
The wireless charging coil;
The contact point of wireless charging, it is located at the two ends of described wireless charging coil;
NFC near-field communication coil, it is connected to the wireless charging coil by two tie points, and the part between described two tie points is the public part of described NFC near-field communication coil and described wireless charging coil;
The contact point of NFC, it is located at the two ends of described NFC near-field communication coil;
Isolated part, it is located between two tie points of the contact point of described NFC and described NFC near-field communication coil, and/or between the contact point of described wireless charging and the described wireless charging coil, for separating of going out the NFC operating frequency, and stop the frequency of wireless charging to be passed through.
Wherein, the contact point of wireless charging and the contact point of NFC can be shell fragments, the metallization material that FPC (Flexible printed circuit) flexible PCB etc. is convenient to connect; The way of realization of the coil in the multiplex antenna can be litz wire (enamelled wire of multiply), FPC (Flexible printed circuit) flexible PCB, advanced technologies such as printed circuit board or LDS (Laser Direct Structuring) laser formation.
In one embodiment of this invention, described isolated part is capacitor.
In another embodiment of the present invention, described isolated part comprises wireless charging isolated part and near-field communication isolated part, described wireless charging isolated part is located between the contact point and described wireless charging coil of described wireless charging, and described near-field communication isolated part is located between two tie points of the contact point of described NFC and described NFC near-field communication coil.Simultaneously, the electric capacity in the compatible portion of all right integrated wireless communication of described near-field communication isolated part or the inductance of EMC filtering are with further minimizing components and parts number and conserve space.
Described wireless charging isolated part can be selected low pass circuit for use.Described near-field communication isolated part can be selected high pass circuit for use, and described low pass circuit and/or the preferred loss of high pass circuit are low, and the device that the Q value is high is as GJM1555x series electric capacity and the LQW series inductance of murata.
Because the inductance value that the wireless charging coil requires is usually more than 10 μ H, and the inductance value of NFC near-field communication coil only 1 μ H to about the 2 μ H, so the length of NFC near-field communication coil can only be about 1/10th of wireless charging coil, multiplexing like this NFC coil is connected to the wireless charging coil from described two tie points.Wherein, the length of NFC near-field communication coiler part and the number of turns determine that by required inductance value the position of two tie points can determine according to the practical structures situation.
A kind of NFC and multiplexing Anneta module of WPC supported provided by the invention, it comprises above-mentioned arbitrary described NFC and WPC multiplex antenna, and magnetic material.The effect of magnetic material is the coverage that increases communication and the charging of antenna effectively, reduces and disturbs.Magnetic material can adopt the ferrite of hard magnetic or contain the flexible material of magnetic.
The present invention also provides a kind of portable terminal that uses the multiplexing Anneta module of above-mentioned support NFC and WPC, and described support NFC and the multiplexing Anneta module of WPC are contained on the battery backshell of portable terminal or the battery or other Free Region; When described support NFC and the multiplexing Anneta module of WPC were assembled on battery backshell or the battery, described magnetic material was near battery, and the coiler part of described NFC and WPC multiplex antenna is away from battery.
Compared with prior art, beneficial effect of the present invention is as follows:
Support NFC of the present invention and the multiplexing Anneta module of WPC, the size of further having dwindled antenna has reduced its occupation space, is beneficial to light, the thin and miniaturization of portable terminal.
Certainly, implement arbitrary product of the present invention and might not need to reach simultaneously above-described all advantages.
Description of drawings
Fig. 1 is the version of NFC antenna and wireless charging antenna in the prior art;
Fig. 2 is the structural representation of NFC and WPC multiplex antenna in the embodiment of the invention 1;
Fig. 3 is the assembly drawing of middle NFC of the present invention and WPC multiplex antenna and magnetic material;
Fig. 4 is the structural representation of NFC and WPC multiplex antenna in the embodiment of the invention 2;
Fig. 5 is a kind of typical low pass circuit of the embodiment of the invention 2;
Fig. 6 is a kind of typical high pass circuit of the embodiment of the invention 2.
Embodiment
The invention provides a kind of novel support NFC and the multiplexing Anneta module of WPC, further to reduce the antenna occupation space.The present invention has dwindled the shared volume of coil by the common winding part of wireless charging and NFC near-field communication is set, thereby has reduced the shared space of antenna.The present invention will be further described in conjunction with specific embodiments in the below.
Embodiment 1
Referring to Fig. 2, a kind of NFC of present embodiment and WPC multiplex antenna 10 comprise:
The contact point 14 of wireless charging, it is located at the two ends of wireless charging coil 11;
NFC near-field communication coil 12, it is the public part of NFC near-field communication coil 12 and wireless charging coil 11 by the coiler part that two tie points 16 are connected between 11, two tie points 16 of wireless charging coil;
The contact point 15 of NFC, it is located at the two ends of NFC near-field communication coil 12;
Isolated part 13, it is located between two tie points 16 of the contact point 15 of NFC and NFC near-field communication coil 12, for separating of going out the NFC operating frequency, and stops the frequency of wireless charging to be passed through.In the present embodiment, isolated part 13 is capacitor.
Wherein, the contact point 14 of wireless charging and the contact point 15 of NFC can be shell fragments, the metallization material that FPC (Flexible printed circuit) flexible PCB etc. is convenient to connect; The way of realization of wireless charging coil 11 and NFC near-field communication coil 12 can be litz wire (enamelled wire of multiply) in the multiplex antenna, FPC (Flexible printed circuit) flexible PCB, advanced technologies such as printed circuit board or LDS (Laser Direct Structuring) laser formation.
Because the inductance value that wireless charging coil 11 requires is usually more than 10 μ H, and the inductance value of NFC near-field communication coil 12 only 1 μ H to about the 2 μ H, so the length of NFC near-field communication coil 12 can only be about 1/10th of wireless charging coil 11, multiplexing like this NFC coil is connected to wireless charging coil 11 from two tie points 16.Wherein, the length of NFC near-field communication coiler part and the number of turns determined by required inductance value, and the position of two tie points 16 can determine according to the practical structures situation, and be not limited to the position shown in the figure.
Present embodiment also provides a kind of NFC of support and the multiplexing Anneta module 30 of WPC, and it comprises above-mentioned NFC and WPC multiplex antenna 10, and magnetic material 20, and the assembly drawing of this Anneta module is referring to Fig. 3.The effect of magnetic material is the coverage that increases communication and the charging of antenna effectively, reduces and disturbs, and magnetic material can adopt the ferrite of hard magnetic or contain the flexible material of magnetic.
Present embodiment also provides a kind of portable terminal that uses the multiplexing Anneta module 30 of above-mentioned support NFC and WPC, such as mobile phone, PDA, computer etc., wherein, support NFC and the multiplexing Anneta module 30 of WPC to be contained on the battery backshell of portable terminal or the battery or other Free Region; When supporting that NFC and the multiplexing Anneta module 30 of WPC are assembled on battery backshell or the battery, magnetic material 20 is near battery, and the coiler part of NFC and WPC multiplex antenna 10 is away from battery.
Embodiment 2
Referring to Fig. 4, a kind of NFC of present embodiment and WPC multiplex antenna 10 comprise:
The contact point 14 of wireless charging, it is located at the two ends of wireless charging coil 11;
NFC near-field communication coil 12, it is the public part of NFC near-field communication coil 12 and wireless charging coil 11 by the coiler part that two tie points 16 are connected between 11, two tie points 16 of wireless charging coil;
The contact point 15 of NFC, it is located at the two ends of NFC near-field communication coil 12;
Isolated part, comprise wireless charging isolated part 17 and near-field communication isolated part 18, wherein, wireless charging isolated part 17 is located between the contact point 14 and wireless charging coil 11 of wireless charging, near-field communication isolated part 18 is located between two tie points 16 of the contact point 15 of NFC and NFC near-field communication coil 12, for separating of going out the NFC operating frequency, and stop the frequency of wireless charging to be passed through.Wireless charging isolated part 17 is low pass circuit, adopts the combining structure of inductor and capacitor to realize that typical low pass circuit as shown in Figure 5.Near-field communication isolated part 18 is high pass circuit, and typical high pass circuit as shown in Figure 6.During concrete enforcement, the preferred loss of the circuit of low pass or high pass is low, and the device that the Q value is high is as GJM1555x series electric capacity and the LQW series inductance of murata.Simultaneously, the capacitor C 0 in the compatible portion of near-field communication isolated part 18 all right integrated common wireless telecommunications, C1, C2a, the inductance L 0 of C2b or EMC filtering is with further minimizing components and parts number and conserve space.
Wherein, the contact point 14 of wireless charging and the contact point 15 of NFC can be shell fragments, the metallization material that FPC (Flexible printed circuit) flexible PCB etc. is convenient to connect; The way of realization of wireless charging coil 11 and NFC near-field communication coil 12 can be litz wire (enamelled wire of multiply) in the multiplex antenna, FPC (Flexible printed circuit) flexible PCB, advanced technologies such as printed circuit board or LDS (Laser Direct Structuring) laser formation.
Because the inductance value that wireless charging coil 11 requires is usually more than 10 μ H, and the inductance value of NFC near-field communication coil 12 only 1 μ H to about the 2 μ H, so the length of NFC near-field communication coil 12 can only be about 1/10th of wireless charging coil 11, multiplexing like this NFC coil is connected to wireless charging coil 11 from two tie points 16.Wherein, the length of NFC near-field communication coiler part and the number of turns determined by required inductance value, and the position of two tie points 16 can determine according to the practical structures situation, and be not limited to the position shown in the figure.
Present embodiment also provides a kind of NFC of support and the multiplexing Anneta module 30 of WPC, and it comprises above-mentioned NFC and WPC multiplex antenna 10, and magnetic material 20, and the assembly drawing of this Anneta module is referring to Fig. 3.The effect of magnetic material is the coverage that increases communication and the charging of antenna effectively, reduces and disturbs, and magnetic material can adopt the ferrite of hard magnetic or contain the flexible material of magnetic.
Present embodiment also provides a kind of portable terminal that uses the multiplexing Anneta module 30 of above-mentioned support NFC and WPC, such as mobile phone, PDA, computer etc., wherein, support NFC and the multiplexing Anneta module 30 of WPC to be contained on the battery backshell of portable terminal or the battery or other Free Region; When supporting that NFC and the multiplexing Anneta module 30 of WPC are assembled on battery backshell or the battery, magnetic material 20 is near battery, and the coiler part of NFC and WPC multiplex antenna 10 is away from battery.
More than the disclosed preferred embodiment of the present invention just be used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and only is described embodiment.Obviously, according to the content of this specification, can make many modifications and variations.These embodiment are chosen and specifically described to this specification, is in order to explain principle of the present invention and practical application better, thereby the technical field technical staff can understand and utilize the present invention well under making.The present invention only is subjected to the restriction of claims and four corner and equivalent.
Claims (10)
1. a NFC and WPC multiplex antenna is characterized in that, comprising:
The wireless charging coil;
The contact point of wireless charging, it is located at the two ends of described wireless charging coil;
NFC near-field communication coil, it is connected to the wireless charging coil by two tie points, and the part between described two tie points is the public part of described NFC near-field communication coil and described wireless charging coil;
The contact point of NFC, it is located at the two ends of described NFC near-field communication coil;
Isolated part, it is located between two tie points of the contact point of described NFC and described NFC near-field communication coil, and/or between the contact point of described wireless charging and the described wireless charging coil, for separating of going out the NFC operating frequency, and stop the frequency of wireless charging to be passed through.
2. NFC as claimed in claim 1 and WPC multiplex antenna is characterized in that, described isolated part is capacitor.
3. NFC as claimed in claim 1 and WPC multiplex antenna, it is characterized in that, described isolated part comprises wireless charging isolated part and near-field communication isolated part, described wireless charging isolated part is located between the contact point and described wireless charging coil of described wireless charging, and described near-field communication isolated part is located between two tie points of the contact point of described NFC and described NFC near-field communication coil.
4. NFC as claimed in claim 3 and WPC multiplex antenna is characterized in that, the electric capacity in the compatible portion of described near-field communication isolated part integrated wireless communication or the inductance of EMC filtering.
5. NFC as claimed in claim 3 and WPC multiplex antenna is characterized in that, described wireless charging isolated part is low pass circuit.
6. NFC as claimed in claim 3 and WPC multiplex antenna is characterized in that, described near-field communication isolated part is high pass circuit.
7. as claim 5 or 6 described NFC and WPC multiplex antenna, it is characterized in that described low pass circuit and/or high pass circuit are that loss is low, the device that the Q value is high.
8. NFC as claimed in claim 1 and WPC multiplex antenna is characterized in that, the length of described NFC near-field communication coil is about 1/10th of described wireless charging coil.
9. support NFC and the multiplexing Anneta module of WPC for one kind, it is characterized in that it comprises arbitrary described NFC and WPC multiplex antenna among the claim 1-8, and magnetic material.
10. a right to use requires the portable terminal of the multiplexing Anneta module of the support NFC described in 9 and WPC, it is characterized in that, described support NFC and the multiplexing Anneta module of WPC are contained on the battery backshell of portable terminal or the battery or other Free Region; When described support NFC and the multiplexing Anneta module of WPC were assembled on battery backshell or the battery, described magnetic material was near battery, and the coiler part of described NFC and WPC multiplex antenna is away from battery.
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| CN201310102871.XA CN103199333B (en) | 2013-03-27 | 2013-03-27 | A kind of Anneta module supporting NFC and WPC multiplexing |
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| CN201310102871.XA CN103199333B (en) | 2013-03-27 | 2013-03-27 | A kind of Anneta module supporting NFC and WPC multiplexing |
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