CN103812519A - 2.4GHz rate-adjustable wireless transceiver system - Google Patents
2.4GHz rate-adjustable wireless transceiver system Download PDFInfo
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- CN103812519A CN103812519A CN201410050495.9A CN201410050495A CN103812519A CN 103812519 A CN103812519 A CN 103812519A CN 201410050495 A CN201410050495 A CN 201410050495A CN 103812519 A CN103812519 A CN 103812519A
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Abstract
The invention discloses a 2.4GHz rate-adjustable wireless transceiver system. The 2.4GHz rate-adjustable wireless transceiver system comprises a receiving link, a transmitting link, and a frequence synthesizer and a digital signal processor both connected with the two links, wherein the frequence synthesizer is used for providing two local oscillating signals different in frequency, the receiving link divides a received radio-frequency signal into two signals which are mixed with the local oscillating signals, respectively, and then provided to a base band for digital signal processing after down-conversion, and the transmitting link is used for mixing two base band signals with the local oscillating signals, respectively, and then generating two radio-frequency signals to be transmitted after up-conversion and further synthesizing the two radio-frequency signals into one signal for power amplification. The 2.4GHz rate-adjustable wireless transceiver system is high in realizability, high in integration level and adjustable in transmitting/receiving rate, and a plurality of performance indexes of the wireless transceiver can be increased through digital signal processing of the base band data.
Description
Technical field
The present invention relates to a kind of wireless transmit-receive technology, relate in particular to a kind of 2.4GHz adj sp wireless transceiver system.
Background technology
Along with the development of modern science and technology and market are for the continuous expansion of wireless telecommunications series products demand, all kinds, each frequency range and the wireless transceiver system based on various different frameworks emerge in an endless stream.And CMOS technique just progressively becomes the first-selected technique of radio frequency integrated circuit design with its plurality of advantages.In traditional transceiver system, no matter be double conversion structure, zero-if architecture, low intermediate frequency structure or high if architectures, mostly all adopt discrete component structure, unavoidably all run into such as realizability poor, integrated level is lower, speed is fixed, the bigger than normal and property indices of the power consumption problem such as be easily interfered.
Summary of the invention
In view of this, the object of this invention is to provide a kind of 2.4GHz adj sp wireless transceiver system, poor to solve in prior art realizability, integrated level is lower, and speed is fixed, the bigger than normal and property indices of the power consumption problem such as be easily interfered.
In order to achieve the above object, the object of the invention is to be achieved through the following technical solutions:
A kind of 2.4GHz adj sp wireless transceiver system, wherein, comprise receiver, transmitting chain, and the frequency synthesizer being connected with above-mentioned two links, digital signal processor, described frequency synthesizer is for providing the local oscillation signal of two-way different frequency, the radiofrequency signal of receiving is divided into two-way by described receiver, after down-converted, offer base band and carry out Digital Signal Processing respectively with after described local oscillation signal mixing, described transmitting chain carries out power amplification by the radiofrequency signal the synthetic road that produce two-way transmitting after two-way baseband signal and described local oscillation signal mixing after upconversion process respectively.
Above-mentioned 2.4GHz adj sp wireless transceiver system, wherein, described receiver comprises the low noise amplifier, two down-conversion mixers, orthogonal complex filter, intermediate frequency amplifier and the analog to digital converters that connect successively, described receiver also comprises an IQ quadrature-phase generator, the signal that a described IQ quadrature-phase generator provides two-way 90 to spend phase difference to two described down-conversion mixers, described frequency synthesizer connects a described IQ quadrature-phase generator.
Above-mentioned 2.4GHz adj sp wireless transceiver system, wherein, described transmitting chain comprises successively the digital to analog converter that connects, low pass filter, two up-conversion mixers and power amplifier, described transmitting chain also comprises the 2nd IQ quadrature-phase generator, and described the 2nd IQ quadrature-phase generator provides two-way 90 to spend the signal of phase difference to two described up-conversion mixers; Described frequency synthesizer connects described the 2nd IQ quadrature-phase generator.
Above-mentioned 2.4GHz adj sp wireless transceiver system, wherein, described receiver will carry out Digital Signal Processing through downconverting to 1MHz to offering base band after the intermediate-freuqncy signal of the configurable centre frequency of 5MHz after the radiofrequency signal of the 2.4GHz receiving and described local oscillation signal mixing.
Above-mentioned 2.4GHz adj sp wireless transceiver system, wherein, described transmitting chain is respectively 1Mbps by the speed being ready for sending to the configurable base band data up-conversion of 5Mbps to 2.4GHz radiofrequency signal.
Compared with the prior art, beneficial effect of the present invention is:
Realizability is stronger, and integrated level is higher and transmission receiving velocity is adjustable, and by the Digital Signal Processing to base band data, improves transceiver multinomial performance index.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the system configuration schematic block diagram of 2.4GHz adj sp wireless transceiver system of the present invention;
Fig. 2 is the components of system as directed structural representation of 2.4GHz adj sp wireless transceiver system 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 clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the present invention can combine mutually.
Shown in seeing figures.1.and.2, 2.4GHz adj sp wireless transceiver system of the present invention comprises receiver, transmitting chain, and the frequency synthesizer being connected with above-mentioned two links, digital signal processor, frequency synthesizer is for providing the local oscillation signal of two-way different frequency, the radiofrequency signal of receiving is divided into two-way by receiver, after down-converted, offer base band and carry out Digital Signal Processing respectively with after local oscillation signal mixing, transmitting chain carries out power amplification by the radiofrequency signal the synthetic road that produce two-way transmitting after two-way baseband signal and local oscillation signal mixing after upconversion process respectively.
Receiver comprises the low noise amplifier, two down-conversion mixers, orthogonal complex filter, intermediate frequency amplifier and the analog to digital converters that connect successively, receiver also comprises an IQ quadrature-phase generator, the signal that the one IQ quadrature-phase generator provides two-way 90 to spend phase difference to two down-conversion mixers, frequency synthesizer connects an IQ quadrature-phase generator.
Transmitting chain comprises successively the digital to analog converter that connects, low pass filter, two up-conversion mixers and power amplifier, transmitting chain also comprises the 2nd IQ quadrature-phase generator, and the 2nd IQ quadrature-phase generator provides two-way 90 to spend the signal of phase difference to two up-conversion mixers.Frequency synthesizer connects the 2nd IQ quadrature-phase generator.
Wherein, IQ two-way is the signal that phase phasic difference 90 is spent; in signal analysis; conventionally signal is carried out to resolution of vectors, by signal decomposition be namely that frequency is identical, peak amplitude is identical but two components of phase phasic difference 90 can adopt a sinusoidal signal and a cosine signal to describe this two components conventionally; wherein cosine component is called as in-phase component; be I component, sinusoidal component is called as quadrature component, i.e. Q component.
When reception, the 2.4GHz radiofrequency signal receiving is carried out low noise amplification by 2.4GHz adj sp wireless transceiver system of the present invention, downconvert to the intermediate-freuqncy signal of configurable centre frequency, for example 1MHz is to the intermediate-freuqncy signal of 5MHz, use orthogonal complex filter and analog to digital converter to be converted into digital signal, carry out again Digital Signal Processing, finally obtain the reception content needing.
When transmission, 2.4GHz adj sp wireless transceiver system of the present invention by the speed being ready for sending be configurable base band data (1Mbps is to 5Mbps) up-conversion to 2.4GHz radiofrequency signal, and then send by power amplifier.
Can find out from above-described embodiment, advantage of the present invention is:
The present invention compares conventional wireless transceiver architecture, and realizability is stronger, and integrated level is higher and transmission receiving velocity is adjustable, and by the Digital Signal Processing to base band data, improves transceiver multinomial performance index; Realizability is stronger, and integrated level is higher and transmission receiving velocity is adjustable, and by the Digital Signal Processing to base band data, improves transceiver multinomial performance index.
Above specific embodiments of the invention be have been described in detail, but the present invention is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications and alternative also all among category of the present invention.Therefore, equalization conversion and the modification done without departing from the spirit and scope of the invention, all should contain within the scope of the invention.
Claims (5)
1. a 2.4GHz adj sp wireless transceiver system, it is characterized in that, comprise receiver, transmitting chain, and the frequency synthesizer being connected with above-mentioned two links, digital signal processor, described frequency synthesizer is for providing the local oscillation signal of two-way different frequency, the radiofrequency signal of receiving is divided into two-way by described receiver, after down-converted, offer base band and carry out Digital Signal Processing respectively with after described local oscillation signal mixing, described transmitting chain carries out power amplification by the radiofrequency signal the synthetic road that produce two-way transmitting after two-way baseband signal and described local oscillation signal mixing after upconversion process respectively.
2. 2.4GHz adj sp wireless transceiver system according to claim 1, it is characterized in that, described receiver comprises the low noise amplifier, two down-conversion mixers, orthogonal complex filter, intermediate frequency amplifier and the analog to digital converters that connect successively, described receiver also comprises an IQ quadrature-phase generator, the signal that a described IQ quadrature-phase generator provides two-way 90 to spend phase difference to two described down-conversion mixers, described frequency synthesizer connects a described IQ quadrature-phase generator.
3. 2.4GHz adj sp wireless transceiver system according to claim 1, it is characterized in that, described transmitting chain comprises successively the digital to analog converter that connects, low pass filter, two up-conversion mixers and power amplifier, described transmitting chain also comprises the 2nd IQ quadrature-phase generator, and described the 2nd IQ quadrature-phase generator provides two-way 90 to spend the signal of phase difference to two described up-conversion mixers; Described frequency synthesizer connects described the 2nd IQ quadrature-phase generator.
4. 2.4GHz adj sp wireless transceiver system according to claim 1, it is characterized in that, described receiver will carry out Digital Signal Processing through downconverting to 1MHz to offering base band after the intermediate-freuqncy signal of the configurable centre frequency of 5MHz after the radiofrequency signal of the 2.4GHz receiving and described local oscillation signal mixing.
5. 2.4GHz adj sp wireless transceiver system according to claim 4, is characterized in that, described transmitting chain is respectively 1Mbps by the speed being ready for sending to the configurable base band data up-conversion of 5Mbps to 2.4GHz radiofrequency signal.
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| CN201410050495.9A CN103812519A (en) | 2014-02-13 | 2014-02-13 | 2.4GHz rate-adjustable wireless transceiver system |
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| CN201410050495.9A CN103812519A (en) | 2014-02-13 | 2014-02-13 | 2.4GHz rate-adjustable wireless transceiver system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743023A (en) * | 2018-12-24 | 2019-05-10 | 武汉大学 | It is a kind of can Up/Down Conversion multiplexing 24GHz frequency mixer |
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| CN1659827A (en) * | 2002-06-07 | 2005-08-24 | 皇家飞利浦电子股份有限公司 | Wireless technology co-existence |
| CN101162910A (en) * | 2006-10-10 | 2008-04-16 | 北京六合万通微电子技术有限公司 | Local oscillator leakage automatic eliminator |
| CN101442322A (en) * | 2007-11-02 | 2009-05-27 | 美国博通公司 | An IC for a high frequency communication device with a minimal off chip components |
| US20100313094A1 (en) * | 2009-06-04 | 2010-12-09 | Syuji Kubota | Communication device |
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- 2014-02-13 CN CN201410050495.9A patent/CN103812519A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1659827A (en) * | 2002-06-07 | 2005-08-24 | 皇家飞利浦电子股份有限公司 | Wireless technology co-existence |
| CN101162910A (en) * | 2006-10-10 | 2008-04-16 | 北京六合万通微电子技术有限公司 | Local oscillator leakage automatic eliminator |
| CN101442322A (en) * | 2007-11-02 | 2009-05-27 | 美国博通公司 | An IC for a high frequency communication device with a minimal off chip components |
| US20100313094A1 (en) * | 2009-06-04 | 2010-12-09 | Syuji Kubota | Communication device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743023A (en) * | 2018-12-24 | 2019-05-10 | 武汉大学 | It is a kind of can Up/Down Conversion multiplexing 24GHz frequency mixer |
| CN109743023B (en) * | 2018-12-24 | 2020-10-30 | 武汉大学 | 24GHz mixer capable of up-down frequency conversion multiplexing |
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Application publication date: 20140521 |