CN102904586B - Ultra-wideband transmitter - Google Patents
Ultra-wideband transmitter Download PDFInfo
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- CN102904586B CN102904586B CN201210413420.3A CN201210413420A CN102904586B CN 102904586 B CN102904586 B CN 102904586B CN 201210413420 A CN201210413420 A CN 201210413420A CN 102904586 B CN102904586 B CN 102904586B
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Abstract
The invention discloses an ultra-wideband transmitter, which comprises a digital excitation module, a charge pump reshaping module and a power amplifier module, wherein the digital excitation module receives a data signal of a digital baseband and converting the rising edge of the data signal into a plurality of pulse signals; the charge pump reshaping module is connected with the digital excitation module and is used for reshaping the plurality of pulse signals into continuous voltage signals with same period, wherein the voltage signals comprise a rising voltage signal and a drop-out voltage signal; and the power amplifier module is connected with the charge pump reshaping module and is used for amplifying the voltage signals and outputting the voltage signals to a transmitting antenna. The ultra-wideband transformer disclosed by the invention is simple in structure, and the output power can flexibly meet the ultra-wideband protocol requirement.
Description
Technical field
The present invention relates to integrated circuit fields, more particularly to a kind of ultra-broadband emitter.
Background technology
Wireless sensor network can by all kinds of integrated microsensors cooperate with each other and real-time monitoring, perceive and
The information of various environment and monitoring object is gathered, and is sent by way of radio communication after the information to collecting is processed
To terminal use, physical environment, information world, the interaction of human society and fusion are really realized.Therefore, wireless sensor network
With boundless application prospect and huge commercial value, receive much concern in the world in recent years.Wireless sensor network
Can work in the state of long-term unmanned, application is widely.Typical wireless sensor network can be divided into
Data acquisition network and data transmission network two parts are constituted.Wherein data acquisition network includes distributed sensor node, letter
Breath coordinates base station and Surveillance center.It is sensing as the wireless sensor network node for collecting and transmitting first-hand information and data
The important foundation of device network organizing success or not and guarantee.
Realize that one of main flow transmitter system of wireless sensor network is uwb short pulse emitter in the world at present
System.In order to meet the standard of international ultra wide band protocols, the power output spectrum density of uwb short pulse emitter must is fulfilled for
The requirement of international ultra wide band protocols.However, it is worthy of note that, ultra wide band protocols standard is relative to other various consensus standards
Speech more stringent, such as its maximum power output spectrum density is no more than -41.3dBm/MHz.Federal Communications committee member
Clearly regulation can be just given early in April, 2002.The frequency range of radio ultra wide band system in 3.1～10.6GHz, its frequency spectrum
At -10dB, it should meet the relative bandwidth of signal（That is the ratio of signal absolute bandwidth and centre frequency）More than 20%, Huo Zhexin
Number absolute bandwidth be more than 500MHz.
Therefore, for uwb short pulse emitter, one of sixty-four dollar question is how to realize a kind of satisfaction
The uwb short pulse emitter of consensus standard.Traditional uwb short pulse emitter is in order to meet the usual structure of consensus standard
It is complicated, it would be desirable to propose a kind of new uwb short pulse emitter, it is desirable to simple structure, and power output meets ultra-wide
Requirement with agreement.
The content of the invention
Present invention is primarily targeted at overcoming the defect of prior art, there is provided a kind of simple structure, and power output energy
The ultra-broadband emitter of the requirement of ultra wide band protocols is enough flexibly met.
To reach above-mentioned purpose, the present invention provides a kind of ultra-broadband emitter, including digital actuation module, receives digital base
The rising edge of the data-signal is simultaneously converted to multiple pulse signals by the data-signal of band；Charge pump Shaping Module, it is and described
Digital actuation module is connected, and the plurality of pulse signal is shaped as into the continuous voltage signal with same period, the electricity
Pressure signal includes raised voltage signal and drop-out voltage signal；And power amplifier module, with the charge pump Shaping Module
It is connected, amplifies the voltage signal and export to transmitting antenna.
Further, the charge pump Shaping Module include the first NMOS tube, the second NMOS tube, the first PMOS, second
PMOS and the first electric capacity；Wherein, the drain electrode of first NMOS tube and the drain electrode of first PMOS connects as institute
The grid for stating the output end of charge pump Shaping Module, the grid of first NMOS tube and first PMOS connects as institute
State the input of charge pump Shaping Module；The drain electrode of second NMOS tube connects the source electrode of first NMOS tube, and described second
The source ground of NMOS tube；The drain electrode of second PMOS connects the source electrode of first PMOS, second PMOS
Source electrode connects power supply；Described first electric capacity one end is connected with the output end of the charge pump Shaping Module, first electric capacity it is another
One end is grounded.
Further, the power amplifier module includes the second electric capacity, its one end and the charge pump Shaping Module
Output end be connected, the other end is connected with the amplifier tube of the power amplifier, to by the voltage signal AC coupled to institute
State the amplifier tube of power amplifier.
Further, the power amplifier module also includes load inductance and matching network, the source of the amplifier tube
Pole is grounded, and drain electrode connects the load inductance and the matching network.
Further, in the plurality of pulse signal, the high-level pulse width of first and last pulse signal
For the half of the high-level pulse width of pulse signal remaining described, and described last pulse signal only has high level arteries and veins
Punching.
Further, the voltage signal is triangular signal.
Further, when the pulse signal is in high level, the voltage signal is drop-out voltage signal；The pulse
When signal is in low level, the voltage signal is raised voltage signal.
It is an advantage of the current invention that being generated by digital actuation module and determining cycle and the number of pulse signal, then pass through
The voltage letter that pulse signal is shaped as the voltage signal with same period or frequency and determines to export by charge pump Shaping Module
Number amplitude so that the power output of emitter can be flexibly met the requirement of ultra wide band protocols.
Description of the drawings
Fig. 1 is the configuration diagram of one embodiment of the invention ultra-broadband emitter.
Fig. 2 for ultra-broadband emitter shown in Fig. 1 A, B, the eDRAM at C.
Fig. 3 is the circuit of one embodiment of the invention ultra-broadband emitter charge pump Shaping Module and power amplifier module
Schematic diagram.
Specific embodiment
To make present disclosure more clear understandable, below in conjunction with Figure of description, present disclosure is made into one
Step explanation.Certainly the specific embodiment, the general replacement known to those skilled in the art be the invention is not limited in
Cover within the scope of the present invention.
Fig. 1 is refer to, it shows the configuration diagram of the ultra-broadband emitter of one embodiment of the invention.Ultra-broadband emitter
Including the digital actuation module 10, charge pump Shaping Module 20 and power amplifier drive module 30 that connect successively.Emitter
Chip front end is the input of digital baseband data signal, and rear end is exported to piece outside antenna for radiofrequency signal.Digital actuation module 10
Receive the data-signal of digital baseband and its rising edge conversion is generated into multiple pulse signals；Charge pump Shaping Module 20 will be multiple
Pulse signal is shaped as the continuous voltage signal with same period, and wherein voltage signal includes raised voltage signal and decline
Voltage signal；Power amplifier module 30 amplifies the voltage signal and exports to piece emission antenna.
Next, will be described in the operation principle of ultra-broadband emitter of the present invention, Fig. 1 to Fig. 3 is refer to, first, number
Word excitation module 10 receives the data-signal come from digital baseband, and in the present embodiment, the transmission of data-signal is based on standard
Data transmission method realize, as shown in Fig. 2 i.e. in the time per unit cycle T second, a data " 1 " or " 0 " can only be transmitted.
When transmission data " 1 ", data-signal has rising edge in the unit period T seconds（That is high level）；When transmission data " 0 ",
Data-signal does not have rising edge in the unit period T seconds.The input A of digital actuation module 10 is in the unit period T seconds
Inside receive data-signal, as shown in Fig. 2 digital actuation module 10 carries out data-signal process, by data-signal it is single on
Rise edge（High level）It is changed into multiple pulse signals, and in the output of output end B.Preferably, in these pulse signals, first arteries and veins
The high level width for rushing signal and last pulse signal is t, is the half of remaining pulse signal high level width 2t, and
Last pulse signal only has high level.Consequently, it is possible to enable to the letter of follow-up Jing charge pumps Shaping Module 20 shaping
Number waveform is more complete.In a preferred embodiment of the invention, the cycle T of data-signal be 0.2s, 10 turns of digital actuation module
The pulse signal for dissolving is ideal square wave signal, and dutycycle is 1/2, and the cycle of pulse signal is 40us, wherein first arteries and veins
The high level width for rushing signal and last pulse signal is the half of remaining pulse signal high level width, and last
Individual pulse signal only has high level.That is, first pulse signal only has 3/4, last pulse signal only has
1/4, and remaining 4 is complete pulse signal.It can be seen from Fig. 2, these pulse signals that digital actuation module 10 is generated
Jing after the shaping of charge pump Shaping Module 20, the voltage signal and pulse signal of the output of output end C differed for 1/4 cycle, just could
Form 5 complete waveforms.Certainly, digital actuation module 10 can also generate multiple pulse signals, wherein first pulse signal
Only have 1/4, last pulse signal has 3/4, Jing after the shaping of charge pump Shaping Module 20, equally also can be in output end
Complete waveform is formed at C-terminal.Digital actuation module 10 can be by the realization of the various logic door block combiner of digital circuit, these realities
Existing mode is well known to those skilled in the art, and is not described in detail here.
Next referring to Fig. 3, charge pump Shaping Module 20 includes the first NMOS tube M1, the second NMOS tube M2, a PMOS
Pipe M3, the second PMOS M4 and the first electric capacity C1.Wherein, the grid of the grid of the second NMOS tube M2 and the first PMOS M3 is connected
Used as the input B of charge pump Shaping Module 20, the drain electrode of the second NMOS tube M2 is connected conduct with the drain electrode of the first PMOS M3
Output end C of charge pump Shaping Module 20, the source electrode of the second NMOS tube M2 connects the drain electrode of the first NMOS tube M1, the first NMOS tube M1
Source ground.The source electrode of the first PMOS M3 connects the drain electrode of the second PMOS M4, and the source electrode of the second PMOS M4 connects power supply.The
The bias voltage that the grid of one NMOS tube M1 and the second PMOS M4 is connected.The one termination charge pump shaping of the first electric capacity C1
Output end C of module 20, other end ground connection.In the present embodiment, the breadth length ratio of NMOS tube M1, M2 is 600nm/55nm, PMOS
The breadth length ratio of pipe M3, M4 is 1.2um/55nm, and the value of electric capacity C1 is 1pF.By to the first NMOS tube M1, the second NMOS tube
The collaborative design of M2, the first PMOS M3, the second PMOS M4 and the first electric capacity C1, being capable of effective control electric charge pump module 20
Output voltage signal amplitude.When the input B of charge pump Shaping Module 20 receives the arteries and veins of the output of digital actuation module 10
Rush signal for high level when, the second NMOS tube M2 conducting, the first PMOS M3 cut-off, now the first electric capacity C1 is by flowing through second
The current discharge of NMOS tube M2, the first NMOS tube M1 so that the output end C voltage of electric charge pump module 20 declines；When charge pump mould
The input B of block 20 receive digital actuation module 10 pulse signal be low level when, the first PMOS M3 conducting, second
NMOS tube M2 is ended, and the first electric capacity C1 is by flowing through the second PMOS M4, the electric current of the first PMOS M3 charges so that charge pump
The output end C voltage of module 20 rises.Therefore, electric charge pump module 20 is defeated according to the low and high level period of state ground of pulse signal
Go out raised voltage signal and drop-out voltage signal, be further shaped as multiple pulse signals that digital actuation module 20 is exported connecting
Continuous voltage signal, as shown in Fig. 2 voltage signal is triangular signal, its cycle is same with the cycle phase of pulse signal.
Then, voltage signal is transferred to power amplifier module 30, power amplifier module by charge pump Shaping Module 20
Voltage signal is amplified and is exported to piece emission antenna.Please continue to refer to Fig. 3, power amplifier module 30 includes second
Electric capacity C2, amplifier tube M5, inductive load L1 and the 3rd electric capacity C3 and inductance L2.In the present embodiment, the width of amplifier tube M5
Long ratio is 22um/55nm, and the second electric capacity C2 is 20pF, and inductive load L1 is 8nH.Second electric capacity C2 plays the work of separated by direct communication
With, the voltage signal that output end C of charge pump Shaping Module 20 is exported is ac-coupled to into the grid of amplifier tube M5, and the 3rd is electric
Hold C3 and inductance L2 and then constitute matching network so that the output impedance of power amplifier module 30 is formed with the impedance of piece outside antenna
50 Ω are matched, to reach the maximum transmitted of power.
To sum up, ultra-broadband emitter proposed by the invention, on the one hand generates and controls pulse by digital actuation module
The cycle of signal and number, to determine cycle or the frequency of output voltage signal, on the other hand pass through again charge pump Shaping Module
Pulse signal is shaped as into the amplitude of the voltage signal with same period or frequency and the voltage signal for determining to export.The present invention
Ultra-broadband emitter simple structure, and power output can be flexibly met the requirement of ultra wide band protocols.
Although the present invention is disclosed as above with preferred embodiment, so many embodiments are illustrated only for the purposes of explanation
, the present invention is not limited to, those skilled in the art can make without departing from the spirit and scope of the present invention
Some changes and retouching, the protection domain that the present invention is advocated should be to be defined described in claims.
Claims (5)
1. a kind of ultra-broadband emitter, it is characterised in that include：
Digital actuation module, receives the data-signal of digital baseband and the rising edge of the data-signal is converted to into multiple pulses
Signal；Wherein, in the plurality of pulse signal, the high-level pulse width of first and last pulse signal is remaining institute
The half of the high-level pulse width of pulse signal is stated, and described last pulse signal only has high level pulse；
Charge pump Shaping Module, is connected with the digital actuation module, and it includes the first NMOS tube, the second NMOS tube, and first
PMOS, the second PMOS and the first electric capacity；Wherein, the drain electrode and the drain electrode of first PMOS of first NMOS tube
Connect the grid of the output end as the charge pump Shaping Module, the grid of first NMOS tube and first PMOS
Connect the input as the charge pump Shaping Module；The drain electrode of second NMOS tube connects the source of first NMOS tube
Pole, the source ground of second NMOS tube；The drain electrode of second PMOS connects the source electrode of first PMOS, and described
The source electrode of two PMOSs connects power supply；Described first electric capacity one end is connected with the output end of the charge pump Shaping Module, and described
The other end ground connection of one electric capacity；The plurality of pulse signal is shaped as the company with same period by the charge pump Shaping Module
The voltage signal of continuous and with complete waveform voltage signal, the voltage signal includes that raised voltage signal and drop-out voltage are believed
Number；And
Power amplifier module, is connected with the charge pump Shaping Module, amplifies the voltage signal and exports to transmitting antenna.
2. ultra-broadband emitter according to claim 1, it is characterised in that the power amplifier module includes that second is electric
Hold, its one end is connected with the output end of the charge pump Shaping Module, and the other end is connected with the amplifier tube of the power amplifier,
To by the amplifier tube of the voltage signal AC coupled to the power amplifier.
3. ultra-broadband emitter according to claim 1, it is characterised in that the power amplifier module also includes load
Inductance and matching network, the source ground of the amplifier tube, drain electrode connects the load inductance and the matching network.
4. ultra-broadband emitter according to claim 1, it is characterised in that the voltage signal is triangular signal.
5. ultra-broadband emitter according to claim 1, it is characterised in that when the pulse signal is in high level, institute
Voltage signal is stated for drop-out voltage signal；When the pulse signal is in low level, the voltage signal is raised voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210413420.3A CN102904586B (en) | 2012-10-25 | 2012-10-25 | Ultra-wideband transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210413420.3A CN102904586B (en) | 2012-10-25 | 2012-10-25 | Ultra-wideband transmitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102904586A CN102904586A (en) | 2013-01-30 |
| CN102904586B true CN102904586B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210413420.3A Active CN102904586B (en) | 2012-10-25 | 2012-10-25 | Ultra-wideband transmitter |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969317A (en) * | 2010-08-18 | 2011-02-09 | 中国科学院半导体研究所 | Asymmetrical high speed and low power consumption transceiver |
| CN102170296A (en) * | 2011-04-22 | 2011-08-31 | 北京大学 | A radio frequency front-end circuit structure |
| CN102361446A (en) * | 2011-10-27 | 2012-02-22 | 上海贝岭股份有限公司 | Triangular wave oscillating circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020029900A (en) * | 2000-05-10 | 2002-04-20 | 요트.게.아. 롤페즈 | A frequency synthesizer having a phase-locked loop with circuit for reducing power-on switching transients |
-
2012
- 2012-10-25 CN CN201210413420.3A patent/CN102904586B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969317A (en) * | 2010-08-18 | 2011-02-09 | 中国科学院半导体研究所 | Asymmetrical high speed and low power consumption transceiver |
| CN102170296A (en) * | 2011-04-22 | 2011-08-31 | 北京大学 | A radio frequency front-end circuit structure |
| CN102361446A (en) * | 2011-10-27 | 2012-02-22 | 上海贝岭股份有限公司 | Triangular wave oscillating circuit |
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| Publication number | Publication date |
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| CN102904586A (en) | 2013-01-30 |
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