CN201994933U - Wireless fidelity (WIFI) module - Google Patents
Wireless fidelity (WIFI) module Download PDFInfo
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- CN201994933U CN201994933U CN2010206823315U CN201020682331U CN201994933U CN 201994933 U CN201994933 U CN 201994933U CN 2010206823315 U CN2010206823315 U CN 2010206823315U CN 201020682331 U CN201020682331 U CN 201020682331U CN 201994933 U CN201994933 U CN 201994933U
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- 238000005516 engineering process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
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Abstract
The utility model relates to a wireless fidelity (WIFI) module which comprises a main chip of a wireless local area network, a first radio frequency filter, a radio frequency switch and a radio frequency connector, furthermore, the WIFI module also comprises a first low noise amplifier, a first power distributor, a second power distributor, a first power amplifier, a second power amplifier, a second low noise amplifier and a second radio frequency filter; wherein the first low noise amplifier is connected with the first radio frequency filter, the first power distributor is connected with the first low noise amplifier, the first power amplifier is connected with the first power distributor and the second power distributor respectively, the second power amplifier is connected with the first power distributor and the second power distributor respectively, the second power distributor is connected with the radio frequency switch, the radio frequency switch is further connected with the second low noise amplifier, the second low noise amplifier is connected with the main chip of the wireless local area network through the second radio frequency filter. The remote high speed data transmission can be satisfied by the WIFI module.
Description
Technical field:
The utility model relates to the communications field, specifically is a kind of WIFI module that is used for remote wireless monitor transfer of data.
Background technology:
Original WIFI (WLAN (wireless local area network)) module can only realize the wireless transmission in the short distance local scope, and distance generally within 100 meters～200 meters, can't satisfy the application of remote scene.Such as under this scene in harbour, freighter and harbour distance are generally distant, and existing WIFI module just can't satisfy the demand at Post Office's monitoring freighter.
The utility model content:
The technical problems to be solved in the utility model is, overcomes existing technological deficiency, and a kind of WIFI module that can satisfy remote high speed data transfers is provided.
Technical solution of the present utility model is, a kind of WIFI module is provided, it comprises the WLAN (wireless local area network) master chip, first radio-frequency filter, radio-frequency (RF) switch and radio frequency connector, described WLAN (wireless local area network) master chip is connected with first radio-frequency filter, described radio-frequency (RF) switch is connected with radio frequency connector, it also comprises first low noise amplifier, first power divider, second power divider, first power amplifier, second power amplifier, second low noise amplifier and second radio-frequency filter, described first low noise amplifier is connected with first radio-frequency filter, described first power divider is connected with first low noise amplifier, described first power amplifier is connected with first power divider and second power divider respectively, described second power amplifier is connected with first power divider and second power divider respectively, described second power divider also is connected with radio-frequency (RF) switch, described radio-frequency (RF) switch also is connected with second low noise amplifier, and described second low noise amplifier is connected with the WLAN (wireless local area network) master chip by second radio-frequency filter.After adopting said structure, the utlity model has following advantage:
The utility model adopts the mode difference amplifying emission signal of two power amplifier parallel connections, by power divider the two-way amplifying signal is synthesized again, so both improved radio-frequency emission power, can not make the signal distortion to some extent of emission again, improve signal quality, improve the receiving sensitivity of signal by second low noise amplifier and second radio-frequency filter again then, thereby increased substantially the signal radiation scope of WIFI module, satisfied the demand of remote high speed data transfers.
Description of drawings:
Accompanying drawing is the functional-block diagram of the utility model WIFI module;
Embodiment:
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in the figure, the utility model provides a kind of WIFI module, it comprises the WLAN (wireless local area network) master chip, first radio-frequency filter, radio-frequency (RF) switch and radio frequency connector, described WLAN (wireless local area network) master chip is connected with first radio-frequency filter, described radio-frequency (RF) switch is connected with radio frequency connector, it also comprises first low noise amplifier, first power divider, second power divider, first power amplifier, second power amplifier, second low noise amplifier and second radio-frequency filter, described first low noise amplifier is connected with first radio-frequency filter, described first power divider is connected with first low noise amplifier, described first power amplifier is connected with first power divider and second power divider respectively, described second power amplifier is connected with first power divider and second power divider respectively, described second power divider also is connected with radio-frequency (RF) switch, described radio-frequency (RF) switch also is connected with second low noise amplifier, and described second low noise amplifier is connected with the WLAN (wireless local area network) master chip by second radio-frequency filter.Described in the present embodiment WLAN (wireless local area network) master chip adopts 802.11n MAC/BBP/RF (a kind of media access control layer of wireless communication standard, baseband processor and radio frequency processing) chip: the model that adopts in the present embodiment is RT3090, it is used for realizing MAC layer (media access control layer), base band and the radio frequency processing of 802.11n (a kind of standards of wireless telecommunications), the model that described first radio-frequency filter adopts is BF1608-E2R4DRA, is used for interference signal outside the filtering transmit frequency band.The model that described radio-frequency (RF) switch adopts is FMS2031DS, is used for realizing that the time-division that transmits and receives link switches, and the model that described radio frequency connector adopts is HPC1510-01, is used for realizing the interconnection between radio-frequency module and the outside high-gain aerial.The model that described first low noise amplifier and second low noise amplifier all adopt is the low noise amplifier of RF2373, is used for realizing that the preposition pre-amplification of radiating portion power amplifier and the low noise of receiving unit amplify.It is the directional coupler of DB0603N that described first power divider and second power divider adopt model, be used for realizing power division and the coupling that the two-way radio frequency amplifies, it is the power amplifier of RF5602 that described first power amplifier and second power amplifier all adopt model, be used for realizing that radio-frequency power amplifies, it is the radio frequency low pass filter of LP0603A2442ANTR that described second radio-frequency filter adopts model, is used for filtering to receive interference signal outside the frequency range.
Operation principle of the present utility model is: the utility model WIFI module adopts general 802.11n transmission technology, by increasing transmitting power and improving receiving sensitivity, increases substantially communication distance.802.11n the entire circuit framework be divided into and transmit and receive two parts.Transmitting chain: by the low-power signal of WLAN (wireless local area network) master chip outputting high quality, disturb outward by the first radio-frequency filter filtering band, carrying out radio frequency by first low noise amplifier again amplifies in advance, by first power divider this road output signal is divided into two then, with two parallel power amplifiers it is carried out power amplification and with second power divider two paths of signals is coupled into one the tunnel to increase radio-frequency power, be input to the radio frequency connector that connects antenna by radio-frequency (RF) switch at last.Receive link: obtain RF small signals from external high-gain aerial, be coupled to second low noise amplifier of importation by radio frequency connector, carry out the outer interference signal of filter bag with second radio-frequency filter then, be input to the WLAN (wireless local area network) master chip at last and handle, send main control device to by USB (USB) interface again.The utility model can be promoted to the wireless signal radiation scope of WIFI module 5 kilometers.
Certainly; above-mentioned explanation is not to be limit value to essential scope of the present utility model; the utility model also is not limited in above-mentioned giving an example; the variation that those skilled in the art person has done in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection range of the present utility model.
Claims (1)
1. WIFI module, it comprises the WLAN (wireless local area network) master chip, first radio-frequency filter, radio-frequency (RF) switch and radio frequency connector, described WLAN (wireless local area network) master chip is connected with first radio-frequency filter, described radio-frequency (RF) switch is connected with radio frequency connector, it is characterized in that: it also comprises first low noise amplifier, first power divider, second power divider, first power amplifier, second power amplifier, second low noise amplifier and second radio-frequency filter, described first low noise amplifier is connected with first radio-frequency filter, described first power divider is connected with first low noise amplifier, described first power amplifier is connected with first power divider and second power divider respectively, described second power amplifier is connected with first power divider and second power divider respectively, described second power divider also is connected with radio-frequency (RF) switch, described radio-frequency (RF) switch also is connected with second low noise amplifier, and described second low noise amplifier is connected with the WLAN (wireless local area network) master chip by second radio-frequency filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206823315U CN201994933U (en) | 2010-12-15 | 2010-12-15 | Wireless fidelity (WIFI) module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206823315U CN201994933U (en) | 2010-12-15 | 2010-12-15 | Wireless fidelity (WIFI) module |
Publications (1)
| Publication Number | Publication Date |
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| CN201994933U true CN201994933U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206823315U Expired - Fee Related CN201994933U (en) | 2010-12-15 | 2010-12-15 | Wireless fidelity (WIFI) module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220012A (en) * | 2013-05-08 | 2013-07-24 | 四川省艾普网络股份有限公司 | WIFI (Wireless Fidelity) module |
| CN103354459A (en) * | 2013-07-03 | 2013-10-16 | 浪潮电子信息产业股份有限公司 | WiFi communication system and method thereof |
| CN103490803A (en) * | 2013-09-11 | 2014-01-01 | 天脉聚源(北京)传媒科技有限公司 | Control device of radio-frequency signal output power and terminal device |
| CN106200371A (en) * | 2016-09-26 | 2016-12-07 | 北京奇虎科技有限公司 | Intelligent watch |
| CN106849981A (en) * | 2016-12-19 | 2017-06-13 | 力同科技股份有限公司 | Base station radio-frequency signal transmitting and receiving circuit, radio frequency transmitter circuitry and signaling method |
-
2010
- 2010-12-15 CN CN2010206823315U patent/CN201994933U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220012A (en) * | 2013-05-08 | 2013-07-24 | 四川省艾普网络股份有限公司 | WIFI (Wireless Fidelity) module |
| CN103354459A (en) * | 2013-07-03 | 2013-10-16 | 浪潮电子信息产业股份有限公司 | WiFi communication system and method thereof |
| CN103490803A (en) * | 2013-09-11 | 2014-01-01 | 天脉聚源(北京)传媒科技有限公司 | Control device of radio-frequency signal output power and terminal device |
| CN106200371A (en) * | 2016-09-26 | 2016-12-07 | 北京奇虎科技有限公司 | Intelligent watch |
| CN106849981A (en) * | 2016-12-19 | 2017-06-13 | 力同科技股份有限公司 | Base station radio-frequency signal transmitting and receiving circuit, radio frequency transmitter circuitry and signaling method |
| CN106849981B (en) * | 2016-12-19 | 2020-08-25 | 力同科技股份有限公司 | Base station radio frequency signal transceiving circuit, radio frequency transmitting circuit and signal transmitting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20161215 |