CN201467112U - 2.4 GHz wireless radio-frequency transceiver - Google Patents
2.4 GHz wireless radio-frequency transceiver Download PDFInfo
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- CN201467112U CN201467112U CN2009200443803U CN200920044380U CN201467112U CN 201467112 U CN201467112 U CN 201467112U CN 2009200443803 U CN2009200443803 U CN 2009200443803U CN 200920044380 U CN200920044380 U CN 200920044380U CN 201467112 U CN201467112 U CN 201467112U
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Abstract
The utility model discloses a 2.4 GHz wireless radio-frequency transceiver which comprises a 2.4 GHz wireless transmit-receive chip and a 2.4 GHz power amplifier, a 2.4 GHz low-noise amplifier, an SPI interface and a system power supply circuit connected with the 2.4 GHz wireless transmit-receive chip; the 2.4 GHz power amplifier is also connected with the 2.4 GHz low-noise amplifier through a 2.4 GHz transmit-receive switch; the 2.4 GHz transmit-receive switch is connected with a 2.4 GHz filter; and the system power supply circuit supplies power for the 2.4 GHz wireless transmit-receive chip, the 2.4 GHz power amplifier and the 2.4 GHz low-noise amplifier respectively. The radio-frequency transceiver adopts GFSK modulation mode to realize high-speed data transmission at 3Mbps, and carries out data interaction operation through the SPI interface and a master control chip.
Description
Technical field
The utility model relates to a kind of radio transceiver device, is meant especially based on the wireless audio and video of the GFSK modulation technique of 2.4GHz and the 2.4GHz radio transceiver device of transfer of data.
Background technology
The transmission technology of traditional analog signal, laser propagation effect is poor, closely particularly transmission is unstable for distance.Modern 2.4GHz ISM (Industry Science Medicine) is the radio band of whole world public use.Practical application on this frequency range also is very abundant.2.4GHz transmission means comprise the mode of analogue transmission and Digital Transmission.The mode of Digital Transmission is compared with the mode of analogue transmission, has strong interference immunity, transmits advantages such as reliable.2.4GHz the different modulating mode that adopts of different transmission system transmit, its maximum transmission rate is also different.Common transmission system has the O-QPSK modulation technique of Zigbee, the OFDM modulation technique of WIFI etc.Therefore, the application based on the wireless digital signal transmission equipment is just very extensive.
Summary of the invention
Goal of the invention: technical problem to be solved in the utility model is at the deficiencies in the prior art, and a kind of 2.4GHz radio transceiver device is provided.
Technical scheme: the utility model discloses a kind of 2.4GHz radio transceiver device, comprise 2.4GHz radio transmitting and receiving chip and the 2.4GHz power amplifier that is connected with described 2.4GHz radio transmitting and receiving chip, 2.4GHz low noise amplifier, SPI interface and system's power supply circuits; Described 2.4GHz power amplifier also is connected with described 2.4GHz low noise amplifier by a 2.4GHz transmit-receive switch; Described 2.4GHz transmit-receive switch is connected with a 2.4GHz filter; Described system power supply circuits are respectively 2.4GHz radio transmitting and receiving chip, 2.4GHz power amplifier and the power supply of 2.4GHz low noise amplifier.
In the utility model, described 2.4GHz filter is connected with an antenna.
What the utility model adopted is the GFSK modulation technique, and described 2.4GHz radio transceiver device is formed by receiving link and transmitting chain, and master controller can come the state of 2.4GHz radio transceiver device is provided with by the SPI interface.
Receiving chain route 2.4GHz antenna, 2.4GHz filter, 2.4GHz transmit-receive switch, 2.4GHz low noise amplifier and 2.4GHz radio transmitting and receiving chip in the utility model forms; Transmitting chain is made up of 2.4GHz radio transmitting and receiving chip, 2.4GHz power amplifier, 2.4GHz transmit-receive switch, 2.4GHz filter and 2.4GHz antenna.
System's power supply circuits in the utility model are provided by the linear stabilized power supply of a 2.5V.
Installation form of the present utility model adopts the form of paster welding, can satisfy the application to highly conditional occasion.
Beneficial effect: the modulation system of the utility model employing GFSK realizes the high speed data transfer up to 3Mbps, carry out data interaction operation by SPI interface and master control chip. can satisfy different antenna installation requirements in the design drawing of antenna simultaneously: walk the radio frequency microstrip line on can be by mainboard and draw signal, can also directly be welded on antenna on the antenna bond pad that has designed, the also mode that can draw with radio frequency cable by the antenna measurement seat. the utility model adopts the form of paster welding, can be used as a device form and carry out the paster installation, can improve the efficient and the reliability of products of production like this.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is done further to specify, above-mentioned and/or otherwise advantage of the present utility model will become apparent.
Fig. 1 is the structural representation of the utility model 2.4GHz radio transceiver device.
Fig. 2 is that the paster of the utility model 2.4GHz radio transceiver device is installed and the antenna scheme of installation.
Embodiment:
As shown in Figure 1, the utility model discloses the radio transceiver device of a kind of 2.4GHz, comprise a transmitting chain and a reception link, wherein transmitting chain is a transmitting terminal, and the reception link is a receiving terminal.Particularly, comprise 2.4GHz radio transmitting and receiving chip 5 and the 2.4GHz power amplifier 3 that is connected with described 2.4GHz radio transmitting and receiving chip 5,2.4GHz low noise amplifier 4, SPI interface 7 and system's power supply circuits 6; Described 2.4GHz power amplifier 3 also is connected with described 2.4GHz low noise amplifier 4 by a 2.4GHz transmit-receive switch 2; Described 2.4GHz transmit-receive switch 2 is connected with a 2.4GHz filter 1; Described system power supply circuits 6 are respectively 2.4GHz radio transmitting and receiving chip, 2.4GHz power amplifier and the power supply of 2.4GHz low noise amplifier.Described 2.4GHz filter 1 is connected with an antenna 10.Described system power supply circuits 6 are the linear stabilized power supply of 2.5V.
During device work described in the utility model, transmitting terminal carries out the modulation of GFSK form to the data that obtain from the master control chip, export to external 2.4GHz power amplifier 3 after being converted to 2.4GHz by 2.4GHz radio transmitting and receiving chip 5 inner integrated frequency changer circuits then, deliver to 2.4GHz filter 1 after the switching by 2.4GHz transmit-receive switch 2, outwards launch by antenna at last.Receiving terminal receives the wireless signal of 2.4GHz from the space, arrive 2.4GHz transmit-receive switch 2 through 2.4GHz filter 1, by external 2.4GHz low noise amplifier 4 backs the signal after amplifying is input to 2.4GHz radio transmitting and receiving chip 5 then, by the demodulator circuit demodulating data of 2.4GHz radio transmitting and receiving chip 5 inside, data are transferred to the master control chip by SPI interface 7 at last.The utility model adopts the mode of frequency hopping to strengthen anti-jamming capacity.The selection of emission state and accepting state realizes by the register setting in the transceiving chip.
As shown in Figure 2, the paster that the invention also discloses the radio transceiver device of a kind of 2.4GHz is installed and the antenna scheme of installation.Paster installation and design of the present utility model can reduce the thickness of device, and convenient simultaneously the installation is if adopt the form of paster to produce and can also enhance productivity.The form that the utility model antenna is installed is very flexibly, can adopt the radio frequency microstrip line to draw from mainboard, also can adopt the antenna that designs is welded on the antenna bond pad 8 that has designed, and can also draw by the antenna measurement seat 9 on the device.
Concrete operation principle:
1.2.4GHz radio transmitting and receiving chip is a core of the present utility model, realizes transmitting terminal and receiving terminal are selected and controlled.
2. transmitting terminal work is the frequency hopping that adopts on the 2.4GHz frequency; Amplifying the back through external 2.4GHz power amplifier after the data of being responsible for that master controller is sent are modulated by GFSK is sent with wireless signal by the 2.4GHz antenna.
3. receiving terminal work also is the frequency hopping that adopts on the 2.4GHz frequency; Be responsible for being transferred to the master control chip by the 2.4GHz radio transmitting and receiving chip after the wireless signal amplification demodulation that receives from the space.
4. the State Selection that transmits and receives of the present utility model all is to realize by the related register of transceiving chip with being provided with.
5. system of the present utility model power supply circuits 6 adopt the linear stabilized power supply of a 2.5V to realize.
In described the utility model circuit, the transmitting terminal circuit is the BF2520 of ACX by 1 employing of 2.4GHz filter, 2.4GHz transmit-receive switch 2 adopts the HW408 of HEXAWAVE, 2.4GHz power amplifier 3 is the AP1110 of RFIC company, 2.4GHz radio transmitting and receiving chip 5 is that the A7125 of AMICCOM company forms.Receiving terminal circuit is the BF2520 of ACX by 1 employing of 2.4GHz filter, 2.4GHz transmit-receive switch 2 adopts the HW408 of HEXAWAVE, 2.4GHz low noise amplifier 4 is the BFG425W of NXP company, the A7125 of 2.4GHz radio transmitting and receiving chip 7AMICCOM company forms.
The utility model provides a kind of radio transceiver device based on 2.4GHz, the form that this device adopts paster to install, and transmission rate can reach 3Mbps, can use in wireless audio and video and wireless high-speed data transmission.The utility model can be realized the radio communication of point-to-point and point-to-multipoint.The wireless transmission distance of open field is greater than 300M.
The utility model provides a kind of thinking and method of 2.4GHz radio transceiver device; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.The all available prior art of each component part not clear and definite in the present embodiment is realized.
Claims (3)
1. 2.4GHz radio transceiver device, it is characterized in that, comprise 2.4GHz radio transmitting and receiving chip (5) and the 2.4GHz power amplifier (3) that is connected with described 2.4GHz radio transmitting and receiving chip (5), 2.4GHz low noise amplifier (4), SPI interface (7) and system's power supply circuits (6); Described 2.4GHz power amplifier (3) also is connected with described 2.4GHz low noise amplifier (4) by a 2.4GHz transmit-receive switch (2); Described 2.4GHz transmit-receive switch (2) is connected with a 2.4GHz filter (1); Described system power supply circuits (6) are respectively 2.4GHz radio transmitting and receiving chip, 2.4GHz power amplifier and the power supply of 2.4GHz low noise amplifier.
2. 2.4GHz radio transceiver device according to claim 1 is characterized in that, described 2.4GHz filter (1) is connected with an antenna (10).
3. 2.4GHz radio transceiver device according to claim 1 and 2 is characterized in that described system power supply circuits (6) are the linear stabilized power supply of 2.5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200443803U CN201467112U (en) | 2009-06-04 | 2009-06-04 | 2.4 GHz wireless radio-frequency transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200443803U CN201467112U (en) | 2009-06-04 | 2009-06-04 | 2.4 GHz wireless radio-frequency transceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201467112U true CN201467112U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200443803U Expired - Fee Related CN201467112U (en) | 2009-06-04 | 2009-06-04 | 2.4 GHz wireless radio-frequency transceiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201467112U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035565A (en) * | 2010-12-14 | 2011-04-27 | 哈尔滨工业大学 | Micro radio frequency communication module based on RFIC |
| CN104901713A (en) * | 2015-05-22 | 2015-09-09 | 成都前锋电子仪器有限责任公司 | Wireless module power consumption control circuit |
-
2009
- 2009-06-04 CN CN2009200443803U patent/CN201467112U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035565A (en) * | 2010-12-14 | 2011-04-27 | 哈尔滨工业大学 | Micro radio frequency communication module based on RFIC |
| CN104901713A (en) * | 2015-05-22 | 2015-09-09 | 成都前锋电子仪器有限责任公司 | Wireless module power consumption control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110604 |