CN205160513U - Anti -interference type wireless communication circuit - Google Patents
Anti -interference type wireless communication circuit Download PDFInfo
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- CN205160513U CN205160513U CN201520583000.9U CN201520583000U CN205160513U CN 205160513 U CN205160513 U CN 205160513U CN 201520583000 U CN201520583000 U CN 201520583000U CN 205160513 U CN205160513 U CN 205160513U
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Abstract
The utility model discloses an anti -interference type wireless communication circuit, handle chip, antenna including the radio frequency, the radio frequency handle the chip with the antenna is connected through the RF switch the radio frequency handle the chip with be equipped with mutually parallelly connected a matching circuit and the 2nd matching circuit between the RF switch, still include with stationary flow circuit and crystal oscillator circuit that the chip is connected are handled to the radio frequency. The utility model has the advantages of simple structure, the stability in use is good, and it can effectual improvement SNR, makes the signal sensibility reinforcing, has also improved the linearity of signal response simultaneously, and retrieval signal ability improves the increase of RF power output simultaneously, still can effectually carry simultaneously high noise immunity can, guarantee the stable transmission of data, the suitability is good, the practicality is strong.
Description
Technical field
The utility model belongs to wireless communication technology field, is specifically related to a kind of anti-interference type wireless communication line.
Background technology
At present, the many modulation-demodulation techniques traditional with FSK, MSK etc. of wireless communication module carry out the wireless transmission of information, in use anti-interference is poor, sensitivity is low for this technology, simultaneously, for reaching telecommunication object, the circuit power consumption of module is also very large, therefore, in actual communication, is subject to very big restriction.SX1278 transceiver adopts LoRa remote modem, has a clear superiority in antiblocking and selectivity, solves the problem that traditional scheme cannot take into account distance, anti-interference and power consumption simultaneously.But, usually adopt the module of SX1278 radio frequency chip, cause because of periphery circuit design unreasonable the unwanted losses of radio-frequency power and system data transmission unstable, the anti-interference of influential system and the transmission range of signal.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model is to provide that a kind of structure is simple, stability in use and the anti-interference type wireless communication line of strong interference immunity.
The technical scheme realizing the utility model object is: a kind of anti-interference type wireless communication line, comprise radio frequency processing chip, antenna, described radio frequency processing chip is connected by radio-frequency (RF) switch with described antenna, between described radio frequency processing chip and described radio-frequency (RF) switch, be provided with the first match circuit be in parallel and the second match circuit, also comprise the current stabilization circuit and crystal oscillating circuit that are connected with described radio frequency processing chip.
Described first match circuit comprises the first electric capacity and the first inductance, described first capacitances in series is between described radio frequency processing chip and described radio-frequency (RF) switch, one end of described first inductance is connected between described first electric capacity and described radio frequency processing chip, other end ground connection.
Described second match circuit comprises the second inductance, the 3rd inductance, the second electric capacity and the 3rd electric capacity, described second inductance and the 3rd inductance are connected between described radio frequency processing chip and described radio-frequency (RF) switch, one end of described second electric capacity is connected between described second inductance and the 3rd inductance, other end ground connection, and one end of described 3rd electric capacity is connected between the 3rd inductance and described radio-frequency (RF) switch, other end ground connection.
The model of described radio frequency processing chip is SX1278 chip, and the chip model of described radio-frequency (RF) switch is PE4259 chip.
The utility model has positive effect: structure of the present utility model is simple, stability in use good, it effectively can improve signal to noise ratio, signal sensitivity is strengthened, also improve the linearity of signal response simultaneously, recall signal ability improves radio-frequency power simultaneously and exports increase, also effectively can improve interference free performance simultaneously, ensure the stable transfer of data, applicability is good, practical.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein:
Fig. 1 is physical circuit figure of the present utility model;
Fig. 2 is standing wave and the loss figure of the first match circuit;
Fig. 3 is standing wave and the loss figure of the second match circuit.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 3 shows a kind of embodiment of the present utility model, and wherein Fig. 1 is physical circuit figure of the present utility model; Fig. 2 is standing wave and the loss figure of the first match circuit; Fig. 3 is standing wave and the loss figure of the second match circuit.
See Fig. 1 to Fig. 3, a kind of anti-interference type wireless communication line, comprise radio frequency processing chip 1, antenna, described radio frequency processing chip 1 is connected by radio-frequency (RF) switch 3 with described antenna, between described radio frequency processing chip 1 and described radio-frequency (RF) switch 3, be provided with the first match circuit 4 and the second match circuit 5 be in parallel, also comprise the current stabilization circuit 6 and crystal oscillating circuit 2 that are connected with described radio frequency processing chip 1.
Described first match circuit 4 comprises the first electric capacity C1 and the first inductance L 1, described first electric capacity C1 is connected between described radio frequency processing chip 1 and described radio-frequency (RF) switch 3, one end of described first inductance L 1 is connected between described first electric capacity C1 and described radio frequency processing chip 1, other end ground connection.
Described second match circuit 5 comprises the second inductance L 2, the 3rd inductance L 3, second electric capacity C2 and the 3rd electric capacity C3, described second inductance L 2 and the 3rd inductance L 3 are connected between described radio frequency processing chip 1 and described radio-frequency (RF) switch 3, one end of described second electric capacity C2 is connected between described second inductance L 2 and the 3rd inductance L 3, other end ground connection, and one end of described 3rd electric capacity C3 is connected between the 3rd inductance L 3 and described radio-frequency (RF) switch 3, other end ground connection.
The model of described radio frequency processing chip is SX1278 chip, and the chip model of described radio-frequency (RF) switch is PE4259 chip.
Structure of the present utility model is simple, stability in use good, it effectively can improve signal to noise ratio, signal sensitivity is strengthened, also improve the linearity of signal response simultaneously, recall signal ability improves radio-frequency power simultaneously and exports increase, also effectively can improve interference free performance simultaneously, ensure the stable transfer of data, applicability is good, practical.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to connotation of the present utility model the apparent change of extending out or variation still belong to protection range of the present utility model.
Claims (4)
1. an anti-interference type wireless communication line, it is characterized in that: comprise radio frequency processing chip, antenna, described radio frequency processing chip is connected by radio-frequency (RF) switch with described antenna, between described radio frequency processing chip and described radio-frequency (RF) switch, be provided with the first match circuit be in parallel and the second match circuit, also comprise the current stabilization circuit and crystal oscillating circuit that are connected with described radio frequency processing chip.
2. anti-interference type wireless communication line according to claim 1, it is characterized in that: described first match circuit comprises the first electric capacity and the first inductance, described first capacitances in series is between described radio frequency processing chip and described radio-frequency (RF) switch, one end of described first inductance is connected between described first electric capacity and described radio frequency processing chip, other end ground connection.
3. anti-interference type wireless communication line according to claim 2, it is characterized in that: described second match circuit comprises the second inductance, the 3rd inductance, the second electric capacity and the 3rd electric capacity, described second inductance and the 3rd inductance are connected between described radio frequency processing chip and described radio-frequency (RF) switch, one end of described second electric capacity is connected between described second inductance and the 3rd inductance, other end ground connection, and one end of described 3rd electric capacity is connected between the 3rd inductance and described radio-frequency (RF) switch, other end ground connection.
4. anti-interference type wireless communication line according to claim 3, is characterized in that: the model of described radio frequency processing chip is SX1278 chip, and the chip model of described radio-frequency (RF) switch is PE4259 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583000.9U CN205160513U (en) | 2015-08-05 | 2015-08-05 | Anti -interference type wireless communication circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583000.9U CN205160513U (en) | 2015-08-05 | 2015-08-05 | Anti -interference type wireless communication circuit |
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| Publication Number | Publication Date |
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| CN205160513U true CN205160513U (en) | 2016-04-13 |
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| CN201520583000.9U Active CN205160513U (en) | 2015-08-05 | 2015-08-05 | Anti -interference type wireless communication circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129588A (en) * | 2016-06-28 | 2016-11-16 | 广东欧珀移动通信有限公司 | The carrier aggregation antenna of alien frequencies section and mobile terminal |
| CN106599543A (en) * | 2016-11-21 | 2017-04-26 | 胡佳 | Medical detection equipment and health information storage method |
| CN106740988A (en) * | 2016-11-17 | 2017-05-31 | 胡佳 | A kind of train communication signal realizes system |
| CN106815961A (en) * | 2017-02-20 | 2017-06-09 | 东北林业大学 | A kind of forest fire protection focus networking monitoring device and monitoring method based on Lora wireless technologys |
-
2015
- 2015-08-05 CN CN201520583000.9U patent/CN205160513U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129588A (en) * | 2016-06-28 | 2016-11-16 | 广东欧珀移动通信有限公司 | The carrier aggregation antenna of alien frequencies section and mobile terminal |
| CN106129588B (en) * | 2016-06-28 | 2019-06-14 | Oppo广东移动通信有限公司 | The carrier wave polymerization antenna and mobile terminal of alien frequencies section |
| CN106740988A (en) * | 2016-11-17 | 2017-05-31 | 胡佳 | A kind of train communication signal realizes system |
| CN106740988B (en) * | 2016-11-17 | 2019-02-05 | 胡佳 | A kind of train communication signal realization system |
| CN106599543A (en) * | 2016-11-21 | 2017-04-26 | 胡佳 | Medical detection equipment and health information storage method |
| CN106815961A (en) * | 2017-02-20 | 2017-06-09 | 东北林业大学 | A kind of forest fire protection focus networking monitoring device and monitoring method based on Lora wireless technologys |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210712 Address after: Room 101, building 6, 2888 Wuzhong Avenue, Yuexi street, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province 215100 Patentee after: Suzhou Xinxu Intelligent Technology Co.,Ltd. Address before: 430080 room 3302, building 5, phase 3, international city, Tuanjie Avenue, Xudong, Wuchang District, Wuhan City, Hubei Province Patentee before: Zhang Zhifu |