CN107491802A - A kind of radio-frequency module - Google Patents
A kind of radio-frequency module Download PDFInfo
- Publication number
- CN107491802A CN107491802A CN201610415193.6A CN201610415193A CN107491802A CN 107491802 A CN107491802 A CN 107491802A CN 201610415193 A CN201610415193 A CN 201610415193A CN 107491802 A CN107491802 A CN 107491802A
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- China
- Prior art keywords
- submodule
- signal
- radio
- module
- output end
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention provides a kind of radio-frequency module, including the receiving submodule for reception signal；It is connected to the receiving submodule output end, the extracting sub-module for extracting signal；It is connected to the extracting sub-module output end, the calibration submodule for calibrating the phase for extracting signal；It is connected to the calibration submodule output end, the modulation submodule for modulated signal.The radio-frequency module uses active load modulation technique, can export load modulation signal powerful enough, so without adding vibration component, reduces the volume of radio-frequency module；It is so, more powerful due to the amplitude stabilization of load modulation signal and load modulation signal can be stablized in a larger performance number, it is not easy by external interference.
Description
Technical field
The invention belongs to radio frequency arts, especially design a kind of radio-frequency module.
Background technology
Radio frequency identification, RFID (Radio Frequency Identification) technology, also known as radio frequency identification,
It is a kind of communication technology, specific objective can be identified by radio signals and read and write related data, without knowing
It is other that mechanical or optical contact is established between system and specific objective.
Used over time with before RFID technique, RFID theory is enriched and perfect.It is single
Chip electronic label, multiple electronic label identification (anti-collision), wireless-readable are writeable, passive electronic label remote
Distance identification, the RFID of adaptation fast moving objects become a reality (highway non-parking charge).
The large-scale application following RFID will be promising..RFID be widely used to logistics, Mobile banking,
The industry such as smart card and bio-identification.RFID technique is increasingly mature, and people there has also been higher to RFID products
Demand.Radio-frequency module volume miniaturization be main trend institute to.Traditional radio-frequency module needs to pass through resonance
Part carries out load modulation, on the one hand the volume of video module can not be reduced, on the other hand load modulation
Easily influenceed by outside environmental elements, interference is more, and easily the amplitude of generation modulated signal is too low, influences to connect
By performance.
Therefore, for drawbacks described above, necessary a kind of radio-frequency module of design, to solve drawbacks described above.
The content of the invention
It is an object of the invention to overcome the defect of prior art, there is provided a kind of radio-frequency module, its small volume,
And it is not easily susceptible to the influence of outside environmental elements, stable signal transmission.
What the present invention was realized in：A kind of radio-frequency module, including：Receiving submodule for reception signal；
It is connected to the receiving submodule output end, the extracting sub-module for extracting signal；It is connected to the extraction
Submodule output end, the calibration submodule for calibrating the phase for extracting signal；It is connected to calibration
Module output end, the modulation submodule for modulated signal.
Further, in addition to the modulation submodule output end transmitting submodule being connected, the transmitting
Submodule is used for launching from modulation submodule output signal.
Further, in addition to encryption submodule, the encryption submodule input are connected to extraction
Module.
Further, the encryption submodule output end is connected to the modulation submodule.
The present invention provides a kind of radio-frequency module, including the receiving submodule for reception signal；It is connected to described
Receiving submodule output end, the extracting sub-module for extracting signal；It is connected to the extracting sub-module output
End, the calibration submodule for calibrating the phase for extracting signal；Be connected to the calibration submodule output end,
Modulation submodule for modulated signal.The radio-frequency module uses active load modulation technique, can export foot
Enough powerful load modulation signals, so without adding vibration component, reduce the volume of radio-frequency module；
And load modulation signal can be stablized in a larger performance number, so, due to the width of load modulation signal
Degree is stable, more powerful, is not easy by external interference.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to implementing
The required accompanying drawing used is briefly described in example or description of the prior art, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of radio-frequency module provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
Such as Fig. 1, the embodiment of the present invention provides a kind of radio-frequency module, including the receiving submodule for reception signal
1, the receiving submodule 1 is used to receive the signal that exterior antenna is launched；It is connected to the receiving submodule
1 output end, the extracting sub-module 2 for extracting signal, the extracting sub-module 2 are used to extract the antenna
Clock signal and modulated signal in transmission signal, then the clock signal extracted and modulated signal are exported；
The output end of extracting sub-module 2, the calibration submodule 3 for calibrating the phase for extracting signal are connected to,
The calibration submodule 3 is used to calibrate the clock signal that the extracting sub-module 2 is launched and output；It is connected to
Calibration submodule 3 output end, the modulation submodule 4 for modulated signal.Also include and modulation
The transmitting submodule 5 of the output end of module 4 connection, the transmitting submodule 5 are used for launching from the modulation submodule
The output signal of block 4.Also include encryption submodule 6, the encryption output end of submodule 6 is connected to the calibration
Submodule 3, the encryption submodule 6 are used for coded signal and exported to the modulation submodule 4.
Further, as shown in figure 1, in specific embodiment structure of the present invention, the receiving submodule 1
It is connected with antenna (not shown), but because of antenna generally because the reason such as coupling so that the signal of transmitting compares
Small, the receiving submodule 1 is amplified to the tiny signal received, and is output to extraction
Module 2 is handled.The gain factor of the receiving submodule 1 is adjustable, can be according to the signal received
Intensity carry out appropriate selection multiplication factor, when the radiofrequency signal of antenna transmitting is faint, the reception submodule
The small-signal received can be amplified to the intensity that the extracting sub-module 2 can be handled by block 1, so
The sensitivity of radio-frequency module signal reception is enhanced, enhances the disposal ability of radio-frequency module.Antenna transmitting
Radiofrequency signal is made up of carrier signal and modulated signal, and the modulated signal is that radio-frequency module needs what is sent
Data or control command, and the modulated signal is showed with digital signal form, the modulated signal adds
It is downloaded in carrier signal, generates radiofrequency signal, reception of the radiofrequency signal Jing Guo the receiving submodule 1 is simultaneously
Amplification, be output to the extracting sub-module 2, the extracting sub-module 2 by demodulating the modulated signal,
And corresponding clock signal can be extracted according to carrier frequency, frequency and the antenna transmitting of the clock signal
Radio frequency signal frequency is identical, and the clock signal extracted and modulated signal are output to by the extracting sub-module 2
The encryption submodule 6, numeral or instruction of the encryption submodule 6 according to represented by the modulated signal are held
Row corresponding operating, the encryption submodule 6 receive modulated signal and exported to the modulation submodule 4
Signal is encryption data, and the encryption submodule 6 is first by the modulated signal received according to pre-defined rule
It is decrypted, then performs corresponding operating, when needing output data, re-encrypting data is output to the modulation
Submodule 4, the radiofrequency signal and load modulation signal of the transmitting of such antenna are coded signal, ensure that and are
The security of system.
Further, as shown in figure 1, in specific embodiment structure of the present invention, the extracting sub-module 2
The clock signal extracted can have certain phase deviation, and clock signal is by the calibration submodule 3
After adjustment phase place, it can be exported as the local oscillation signal of transmitting modulation to the modulation submodule 4, so, energy
Tranmitting frequency is set to keep stable.When needing return data, the modulation submodule 4 receives the encryption
The output signal of submodule 6, the signal are showed with digital signal form, by the digital signal modulated to institute
State and generate load modulation signal in the clock signal through phase alignment.The modulation that the modulation submodule 4 uses
Mode includes ASK, BPSK etc., and the modulation system specifically used does not limit here, as long as meeting rule
The requirement of load modulation, the load modulation signal are put by the transmitting power of submodule 5 in model
After big, corresponding card reader is transmitted to by antenna, the gain factor of the transmitting submodule 5 is adjustable, makes
Obtaining the load modulation signal of antenna transmitting can stablize in a larger performance number, so, be adjusted due to loading
The amplitude stabilization of signal processed, it is more powerful, it is not easy by external interference.
Further, as shown in figure 1, in specific embodiment structure of the present invention, what the present embodiment provided penetrates
Frequency module uses active load modulation technique, can export load modulation signal powerful enough, such nothing
Vibration component need to be added, reduces the volume of radio-frequency module, meanwhile, it is described to penetrate even if antenna area is small
Frequency signal can still couple, although coupled signal is more small, after the receiving submodule 1 amplification,
It is sufficient so that the extracting sub-module 2 and extracts clock signal and control signal therein.In the present embodiment,
Need by the calibration adjustment phase place of submodule 3 so that clock signal can be more stable and synchronous, institute
The clock signal modulated by calibrating submodule 3 is stated to bear as local oscillation signal, modulation submodule 4 output
Modulated signal is carried, load modulation signal is launched to terminal after the transmitting submodule 5 by antenna.
As preferred embodiment, the gain factor of the receiving submodule 1 and the transmitting submodule 5
With debugging, it is ensured that the power foot for signal power and the antenna transmitting that the extracting sub-module 2 receives
It is enough greatly and stably, add the stability of radio-frequency module.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in this hair
Within bright spirit and principle, any modification, equivalent substitution and improvements made etc., this hair should be included in
Within bright protection domain.
Claims (4)
- A kind of 1. radio-frequency module, it is characterised in that：IncludingReceiving submodule for reception signal；It is connected to the receiving submodule output end, the extracting sub-module for extracting signal；It is connected to the extracting sub-module output end, the calibration submodule for calibrating the phase for extracting signal Block；It is connected to the calibration submodule output end, the modulation submodule for modulated signal.
- A kind of 2. radio-frequency module as claimed in claim 1, it is characterised in that：Also include and the modulation submodule The transmitting submodule of block output end connection, the transmitting submodule are used for launching from modulation submodule output Signal.
- A kind of 3. radio-frequency module as claimed in claim 1, it is characterised in that：Also include encryption submodule, institute State encryption submodule input and be connected to the extracting sub-module.
- A kind of 4. radio-frequency module as claimed in claim 3, it is characterised in that：The encryption submodule output end It is connected to the modulation submodule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415193.6A CN107491802A (en) | 2016-06-13 | 2016-06-13 | A kind of radio-frequency module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415193.6A CN107491802A (en) | 2016-06-13 | 2016-06-13 | A kind of radio-frequency module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107491802A true CN107491802A (en) | 2017-12-19 |
Family
ID=60643020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610415193.6A Pending CN107491802A (en) | 2016-06-13 | 2016-06-13 | A kind of radio-frequency module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107491802A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194459A (en) * | 2018-10-08 | 2019-01-11 | 惠科股份有限公司 | Data extraction method and device of transmission signal and storage medium |
| CN111091013A (en) * | 2018-08-10 | 2020-05-01 | 深圳市嘉瀚科技有限公司 | Radio frequency module |
-
2016
- 2016-06-13 CN CN201610415193.6A patent/CN107491802A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111091013A (en) * | 2018-08-10 | 2020-05-01 | 深圳市嘉瀚科技有限公司 | Radio frequency module |
| CN109194459A (en) * | 2018-10-08 | 2019-01-11 | 惠科股份有限公司 | Data extraction method and device of transmission signal and storage medium |
| CN109194459B (en) * | 2018-10-08 | 2020-11-06 | 惠科股份有限公司 | Data extraction method and device of transmission signal and storage medium |
| US11283587B2 (en) | 2018-10-08 | 2022-03-22 | HKC Corporation | Data extraction method for transmission signal, device and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171219 |