CN203103494U - Antenna for NFC (near field communication) smart electric meter - Google Patents
Antenna for NFC (near field communication) smart electric meter Download PDFInfo
- Publication number
- CN203103494U CN203103494U CN 201320132764 CN201320132764U CN203103494U CN 203103494 U CN203103494 U CN 203103494U CN 201320132764 CN201320132764 CN 201320132764 CN 201320132764 U CN201320132764 U CN 201320132764U CN 203103494 U CN203103494 U CN 203103494U
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- China
- Prior art keywords
- antenna
- pcb
- nfc
- electric meter
- rectangular coil
- 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.)
- Expired - Lifetime
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- 238000004891 communication Methods 0.000 title description 9
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 claims abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses an antenna for an NFC smart electric meter. The antenna comprises a PCB (printed circuit board), wherein a rectangular coil is fixed on one side of the PCB; and nickel-zinc ferrite matched with the rectangular coil in shape and position is fixed on the other side of the PCB. The PCB is an FPC (flexible printed circuit), which can be bent, curled and folded freely, can be arranged at will according to requirement for space arrangement, can move, expand and retract at will in a three-dimensional space, and can greatly reduce the size of the PCB. On the other hand, the EMC (electro magnetic compatibility) property of the antenna is enhanced due to small inductance generated by the rectangular coil. The nickel-zinc ferrite corresponding to the rectangular coil and arranged on the other side of the PCB can prevent generation of eddies, thereby further improving the NFC distance and the sensing sensitivity.
Description
Technical field
The utility model relates to a kind of antenna of the NFC of being used for intelligent electric meter.
Background technology
NFC (Near Field Communication, near-field communication) be on the basis of radio frequency identification (RFID) and interconnection technique, to merge the new technology that develops and come, it is a kind of short-distance wireless communication technology standard, it is integrated Non-contact Media Reader on one chip, the function of contact type intelligent card and point-to-point communication, operate in the frequency range of 13.56MHz, that can (show body and mobile phone) between the apparatus for establishing in about 10cm scope is connected, transmission rate can be 106kbit/s, 212kbit/s, 424kbit/s, can bring up to more than the 848kbit/s future.It provides a kind of solution of simple, touch, can allow client's simple, intuitive ground exchange message, accessed content and service.
Near-field communication NFC technology is applied to intelligence table the inside, can satisfies conveniently electricity charge paying demand.And antenna seems particularly important as a kind of carrier of NFC communication data transmission.Mainly contain coil form and microband paste type in the RFID in city antenna in advance.The microband paste type is applicable to that direction of communication changes in the little RFID application system, but it realizes that technology is complicated, and cost is higher, is not suitable for ammeter.
Because at present national grid has been done unified regulation to the apparent size of each ammeter, traditional antenna is subjected to that overall volume is big, the not high influence of sensitivity, has not been suitable for to be installed in NFC ammeter the inside.
The utility model content
The purpose of this utility model is to provide a kind of can embed in the NFC intelligent electric meter antenna that volume is little, the EMC performance is good.
The antenna of this NFC of the being used for intelligent electric meter that the utility model provides comprises pcb board, and the one side of pcb board is fixed with square coil, another side is fixed with and the nickel-zinc ferrite of described rectangular loop shaped, location matches.
Described square coil have be positioned at conplane, by some circles that the lead coiled is continuous, they are embedded on the described pcb board.
Described pcb board is the FPC soft board.
Pcb board of the present utility model adopts the FPC soft board, it can free bend, coiling, folding, can require to arrange arbitrarily according to space layout, and it is mobile arbitrarily and flexible at three dimensions, can dwindle the volume of pcb board greatly, the inductance of square coil generation is very little on the other hand, has strengthened the EMC performance of antenna.Arranged the nickel-zinc ferrite corresponding at the opposite side of pcb board, can prevent the generation of eddy current, and then increased the communication distance of NFC and the sensitivity of induction with square coil.
Description of drawings
Fig. 1 is the plan structure schematic diagram of a preferred embodiment of the utility model.
Fig. 2 is the right TV structure schematic diagram of Fig. 1.
Fig. 3 is a circuit diagram that mates with the utility model.
Embodiment
It is 50 Ω that preferred embodiment, the utility model select the radio frequency chip of ST company to come matched impedance, works in the antenna of 13.56MHZ.As shown in Figure 1 and Figure 2, this antenna comprises pcb board 1, and the one side of pcb board 1 is fixed with square coil 2, another side is fixed with and the nickel-zinc ferrite 3 of square coil 1 shape, location matches.Square coil 2 have be positioned at conplane, by some circles that the lead coiled is continuous, they are embedded on the pcb board 1.The live width w of the lead of square coil 2 is 0.5mm, and the outmost turns length and width size of square coil 2 is respectively 60mm * 22mm, lead total length 320mm, and the spacing between adjacent two rectangular loop is 0.5mm.Therefore antenna volume is very little, can be attached to ammeter inside very easily.Pcb board 1 adopts the FPC soft board, be useful on it connect with antenna-matching circuit be connected pin 4, match circuit can adopt circuit as shown in Figure 3.
During assembling,, get final product by connecting pin 4 connection match circuits earlier with corresponding position in above-mentioned integrated consideration and the ammeter.
Only need during use will with the NFC mobile phone of NFC intelligent electric meter pairing near this ammeter, can read data very intuitively by this mobile phone by the transmission of ammeter internal antenna.
Claims (3)
1. antenna that is used for the NFC intelligent electric meter, it is characterized in that: this antenna comprises pcb board, the one side of pcb board is fixed with square coil, another side is fixed with and the nickel-zinc ferrite of described rectangular loop shaped, location matches.
2. the antenna that is used for the NFC intelligent electric meter as claimed in claim 1 is characterized in that: described square coil have be positioned at conplane, by some circles that the lead coiled is continuous, they are embedded on the described pcb board.
3. the antenna that is used for the NFC intelligent electric meter as claimed in claim 1 is characterized in that: described pcb board is the FPC soft board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320132764 CN203103494U (en) | 2013-03-22 | 2013-03-22 | Antenna for NFC (near field communication) smart electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320132764 CN203103494U (en) | 2013-03-22 | 2013-03-22 | Antenna for NFC (near field communication) smart electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203103494U true CN203103494U (en) | 2013-07-31 |
Family
ID=48854873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320132764 Expired - Lifetime CN203103494U (en) | 2013-03-22 | 2013-03-22 | Antenna for NFC (near field communication) smart electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203103494U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577357A (en) * | 2013-10-17 | 2015-04-29 | 中兴通讯股份有限公司 | Antenna and mobile terminal |
| CN105337028A (en) * | 2014-07-31 | 2016-02-17 | 展讯通信（上海）有限公司 | Antenna system |
| CN112611920A (en) * | 2020-12-03 | 2021-04-06 | 深圳市卓睿通信技术有限公司 | Ferrite consistency detection jig and detection method |
-
2013
- 2013-03-22 CN CN 201320132764 patent/CN203103494U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577357A (en) * | 2013-10-17 | 2015-04-29 | 中兴通讯股份有限公司 | Antenna and mobile terminal |
| CN104577357B (en) * | 2013-10-17 | 2019-03-12 | 中兴通讯股份有限公司 | An antenna and mobile terminal |
| CN105337028A (en) * | 2014-07-31 | 2016-02-17 | 展讯通信（上海）有限公司 | Antenna system |
| CN112611920A (en) * | 2020-12-03 | 2021-04-06 | 深圳市卓睿通信技术有限公司 | Ferrite consistency detection jig and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
|
| CX01 | Expiry of patent term |