CN108880572A - A kind of NFC and RFID two-in-one antenna control system - Google Patents
A kind of NFC and RFID two-in-one antenna control system Download PDFInfo
- Publication number
- CN108880572A CN108880572A CN201810735388.8A CN201810735388A CN108880572A CN 108880572 A CN108880572 A CN 108880572A CN 201810735388 A CN201810735388 A CN 201810735388A CN 108880572 A CN108880572 A CN 108880572A
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- China
- Prior art keywords
- antenna
- rfid
- nfc
- chip
- pin
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
Abstract
The invention discloses a kind of NFC and RFID two-in-one antenna control system, including NFC chip, the NFC chip is connected with an antenna RF switch chip by first antenna match circuit；RFID chip, the RFID chip are connect by the second antenna-matching circuit with antenna RF switch chip；The antenna RF switch chip is connected with an antenna by third antenna match circuit；The model XMSSJE3G0PA-003 of the antenna RF switch chip；The VDD pin and CTL pin of the XMSSJE3G0PA-003 and the switch control pin of CPU connect.NFC and RFID two-in-one antenna control system provided by the present invention, so that NFC and RFID shares an antenna, NFC and RFID product is designed without two antennas, save 1000 square millimeters of intelligent terminal of area, when so that intelligent terminal having RFID and NFC function at the same time, the product produced can equally accomplish beautiful exquisiteness.
Description
Technical field
The present invention relates to communication technique fields, and in particular to a kind of NFC and RFID two-in-one antenna control system.
Background technique
Existing mobile terminal, intelligent terminal increasingly move towards Internet of Things unification, and integrated function is more and more, there is 2G, 3G
Or 4G network, there is WIFI communication, there is Bluetooth communication, there is GPS positioning, there is RFID communication, there is NFC communication.At this time on intelligent terminal
Communication network require antenna carry out data exchange transmission.
Intelligent terminal in the prior art requires function more, and equipment beautiful miniaturization again, each antenna will be according to certainly
Body wavelength is designed.RFID antenna and NFC antenna are the operation at frequencies in 13.56MHz, and the occupancy of each antenna is empty
Between be 1500 square millimeters, two just need 3000 square millimeters, at this moment the space of intelligent terminal will be obviously not much of that, often
It is very reluctantly to forget after some functions or not enough.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of NFC and RFID
Two-in-one antenna control system, present invention seek to address that intelligent terminal in the prior art is needed using two days NFC and RFID
Line and the problem of occupied space.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of NFC and RFID two-in-one antenna control system：
NFC chip, the NFC chip are connected with an antenna RF switch chip by first antenna match circuit；
RFID chip, the RFID chip are connect by the second antenna-matching circuit with antenna RF switch chip；
The antenna RF switch chip is connected with an antenna by third antenna match circuit；
The model XMSSJE3G0PA-003 of the antenna RF switch chip；
The VDD pin and CTL pin of the XMSSJE3G0PA-003 and the switch control pin of CPU connect.
Preferably, the model PN66T of the NFC chip, the model AS3911B of the RFID chip.
Preferably, the TX1 pin of the PN66T, TX2 pin be connected to XMSSJE3G0PA-003 P3- pin,
P3+ pin, P1- pin, the P1+ pin of the XMSSJE3G0PA-003 are connected to antenna, the RF01 pin of the AS3911B,
RF02 pin is connected to the P2- pin of XMSSJE3G0PA-003, P2+ pin.
Preferably, the frequency of the antenna RF switch chip is 100KHz to 2.7GHz.
Preferably, the impedance of the antenna RF switch chip is 50 ohm.
Compared with prior art, NFC and RFID two-in-one antenna control system provided by the present invention, including：NFC core
Piece, the NFC chip are connected with an antenna RF switch chip by first antenna match circuit；RFID chip, the RFID core
Piece is connect by the second antenna-matching circuit with antenna RF switch chip；The antenna RF switch chip is matched by third antenna
Circuit connection has an antenna；The model XMSSJE3G0PA-003 of the antenna RF switch chip；The XMSSJE3G0PA-
003 VDD pin and CTL pin and the switch control pin of CPU connect, so that NFC and RFID shares an antenna, without
It wants two antennas to design NFC and RFID product, 1000 square millimeters of intelligent terminal of area is saved, so that intelligent terminal exists
When being provided simultaneously with RFID and NFC function, the product produced can equally accomplish beautiful exquisiteness.
Detailed description of the invention
Fig. 1 is a kind of module diagram of NFC and RFID two-in-one antenna control system preferred embodiment of the present invention.
Fig. 2 is a kind of circuit diagram of NFC and RFID two-in-one antenna control system preferred embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
The embodiment of the invention provides a kind of NFC and RFID two-in-one antenna control systems, as depicted in figs. 1 and 2, packet
It includes：NFC chip, the NFC chip are connected with an antenna RF switch chip by first antenna match circuit；RFID chip, institute
RFID chip is stated to connect by the second antenna-matching circuit with antenna RF switch chip；The antenna RF switch chip passes through third
Antenna-matching circuit is connected with an antenna；The model XMSSJE3G0PA-003 of the antenna RF switch chip；It is described
The VDD pin and CTL pin of XMSSJE3G0PA-003 and the switch control pin of CPU connect.
In the further preferred embodiment of the present invention, the model PN66T of the NFC chip, the model of the RFID chip
For AS3911B.
In the further preferred embodiment of the present invention, TX1 pin, the TX2 pin of the PN66T is connected to
P3- pin, the P3+ pin of XMSSJE3G0PA-003, P1- pin, the P1+ pin of the XMSSJE3G0PA-003 are connected to day
Line, RF01 pin, the RF02 pin of the AS3911B are connected to the P2- pin of XMSSJE3G0PA-003, P2+ pin.
When it is implemented, PN66T works when using NFC, the high-frequency signal of NFC is sent to XMSSJE3G0PA-003 chip,
It is connected between the P3 pin and P1 pin on the XMSSJE3G0PA-003 chip at this time, and P2 pin just directly disconnects ground connection, this
Sample may insure that state no interference signal interferes P3 pin, then be matched to antenna by third antenna match circuit, realize brush identity
The functions such as card, all-purpose card.
AS3911B is worked when using RFID, high-frequency signal is sent to XMSSJE3G0PA-003 chip and switches over, this
When, it (is connect by control pin with XMSSJE3G0PA-003 chip) by CPU, so that the P2 of XMSSJE3G0PA-003 chip
Pin is connected with P1 pin, and ground is just disconnected and be connected between P3 pin and P1 pin, does not also interfere with signal interference P2 in this way
Then the RFID signal of pin is matched to antenna by third antenna match circuit, realize the function of brush Interlink Card.
In the further preferred embodiment of the present invention, the frequency of the antenna RF switch chip is 100KHz to 2.7GHz.
In the further preferred embodiment of the present invention, the impedance of the antenna RF switch chip is 50 ohm.
When in use, certain it is noted that be the antenna RF switch chip being a HF switch, the frequency of switch is preferably
13.56MHz。
The impedance matching (50 ohm) for additionally needing debugging antenna and the switch, makes the efficiency highest of two-in-one antenna, no
The mismatch and the loss of signal that then will appear first antenna match circuit and the second antenna-matching circuit, antenna performance is caused to lack,
It cannot swipe the card.
In conclusion the invention discloses a kind of NFC and RFID two-in-one antenna control systems, including：NFC chip, institute
It states NFC chip and one antenna RF switch chip is connected with by first antenna match circuit；RFID chip, the RFID chip pass through
Second antenna-matching circuit is connect with antenna RF switch chip；The antenna RF switch chip is connected by third antenna match circuit
It is connected to an antenna；The model XMSSJE3G0PA-003 of the antenna RF switch chip；The VDD of the XMSSJE3G0PA-003
The switch control pin of pin and CTL pin and CPU connection, so that NFC and RFID shares an antenna, without two days
Line designs NFC and RFID product, saves 1000 square millimeters of intelligent terminal of area, so that intelligent terminal has at the same time
RFID and when NFC function, the product produced can equally accomplish beautiful exquisiteness.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (5)
1. a kind of NFC and RFID two-in-one antenna control system, which is characterized in that including：
NFC chip, the NFC chip are connected with an antenna RF switch chip by first antenna match circuit；
RFID chip, the RFID chip are connect by the second antenna-matching circuit with antenna RF switch chip；
The antenna RF switch chip is connected with an antenna by third antenna match circuit；
The model XMSSJE3G0PA-003 of the antenna RF switch chip；
The VDD pin and CTL pin of the XMSSJE3G0PA-003 and the switch control pin of CPU connect.
2. NFC and RFID two-in-one antenna control system according to claim 1, which is characterized in that the NFC chip
Model PN66T, the model AS3911B of the RFID chip.
3. NFC and RFID two-in-one antenna control system according to claim 2, which is characterized in that the PN66T's
TX1 pin, TX2 pin are connected to the P3- pin of XMSSJE3G0PA-003, P3+ pin, the XMSSJE3G0PA-003
P1- pin, P1+ pin be connected to antenna, RF01 pin, the RF02 pin of the AS3911B is connected to
P2- pin, the P2+ pin of XMSSJE3G0PA-003.
4. NFC and RFID two-in-one antenna control system according to claim 1, which is characterized in that the antenna RF is opened
The frequency for closing chip is 100KHz to 2.7GHz.
5. NFC and RFID two-in-one antenna control system according to claim 1, which is characterized in that the antenna RF is opened
The impedance for closing chip is 50 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735388.8A CN108880572A (en) | 2018-07-06 | 2018-07-06 | A kind of NFC and RFID two-in-one antenna control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735388.8A CN108880572A (en) | 2018-07-06 | 2018-07-06 | A kind of NFC and RFID two-in-one antenna control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108880572A true CN108880572A (en) | 2018-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810735388.8A Pending CN108880572A (en) | 2018-07-06 | 2018-07-06 | A kind of NFC and RFID two-in-one antenna control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10789391B1 (en) | 2019-07-22 | 2020-09-29 | Alibaba Group Holding Limited | RFID information processing |
| WO2021012651A1 (en) * | 2019-07-22 | 2021-01-28 | 创新先进技术有限公司 | Rfid device, and information processing method based on same |
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|---|---|---|---|---|
| CN101194432A (en) * | 2005-06-30 | 2008-06-04 | 诺基亚公司 | Device, module and method for shared antenna operation in communication environment based on RFID technology |
| CN103683443A (en) * | 2013-10-21 | 2014-03-26 | 络达科技股份有限公司 | Chargeable device |
| CN104253634A (en) * | 2014-07-24 | 2014-12-31 | 上海励识电子科技有限公司 | Double-frequency multi-protocol multifunctional NFC (near field communication) integrating system and application method |
| CN104766105A (en) * | 2014-01-06 | 2015-07-08 | 和硕联合科技股份有限公司 | Wearable device and operation method thereof |
| CN107707265A (en) * | 2017-10-26 | 2018-02-16 | 浙江威星智能仪表股份有限公司 | A kind of dual communication chip shares single antenna |
-
2018
- 2018-07-06 CN CN201810735388.8A patent/CN108880572A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101194432A (en) * | 2005-06-30 | 2008-06-04 | 诺基亚公司 | Device, module and method for shared antenna operation in communication environment based on RFID technology |
| CN103683443A (en) * | 2013-10-21 | 2014-03-26 | 络达科技股份有限公司 | Chargeable device |
| CN104766105A (en) * | 2014-01-06 | 2015-07-08 | 和硕联合科技股份有限公司 | Wearable device and operation method thereof |
| CN104253634A (en) * | 2014-07-24 | 2014-12-31 | 上海励识电子科技有限公司 | Double-frequency multi-protocol multifunctional NFC (near field communication) integrating system and application method |
| CN107707265A (en) * | 2017-10-26 | 2018-02-16 | 浙江威星智能仪表股份有限公司 | A kind of dual communication chip shares single antenna |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10789391B1 (en) | 2019-07-22 | 2020-09-29 | Alibaba Group Holding Limited | RFID information processing |
| WO2021012651A1 (en) * | 2019-07-22 | 2021-01-28 | 创新先进技术有限公司 | Rfid device, and information processing method based on same |
| US10984135B2 (en) | 2019-07-22 | 2021-04-20 | Advantageous New Technologies Co., Ltd. | RFID information processing |
| US11334688B2 (en) | 2019-07-22 | 2022-05-17 | Advanced New Technologies Co., Ltd. | RFID information processing |
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Effective date of registration: 20190111 Address after: 363000 Mianlin Road, Jiuhu Town, Zhangzhou High-tech Zone, Fujian Province Applicant after: Zhangzhou Dongfang Tuoyu Information Technology Co., Ltd. Address before: 363000 Joint Inspection Building of Baihua Village Section, Jiuhu Town, 324 National Road, Zhangzhou High-tech Zone, Fujian Province Applicant before: Zhangzhou hi tech Zone foresight industry technology research Co., Ltd. |
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