CN102098064A - Ultra-wideband transmitter system - Google Patents
Ultra-wideband transmitter system Download PDFInfo
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- CN102098064A CN102098064A CN2010106194765A CN201010619476A CN102098064A CN 102098064 A CN102098064 A CN 102098064A CN 2010106194765 A CN2010106194765 A CN 2010106194765A CN 201010619476 A CN201010619476 A CN 201010619476A CN 102098064 A CN102098064 A CN 102098064A
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Abstract
The invention provides an ultra-wideband transmitter system, comprising a base band pulse generation circuit, an on-chip power supply voltage switch driving circuit, a high-frequency oscillator and an output stage driving and amplifying circuit, wherein the base band pulse generation circuit is used for receiving base band data and generating an ultra-short pulse with a small duty ratio; and the ultra-short pulse controls the high-frequency oscillator and the output stage driving and amplifying circuit to intermittently work within a period via the on-chip power supply voltage switch driving circuit so as to enable the high-frequency oscillator to naturally generate high-frequency oscillator signals needed by the ultra-wideband, and amplify and output the high-frequency oscillator signals via the output stage driving and amplifying circuit which intermittently works within the period; and the system fully uses the ultra-short pulse characteristics of the ultra-wideband so that the transmission module with large power consumption of the ultra-wideband transmitter system intermittently works within the period for a short time, and is closed in other times, thereby greatly saving the power consumption of the transmitter.
Description
Technical field
The present invention relates to integrated circuit fields, be specially a kind of ultra-broadband emitter system.
Background technology
The uwb short pulse transmitter system is one of main flow transmitter system of realizing in the world wireless sensor network.The research direction of uwb short pulse transmitter mainly is divided into two aspects at present: the one, how to realize energy efficiency substantially; Another is a super low-power consumption how farthest to realize transmitter.
At present in general, mainly contain dual mode and produce uwb short pulse.A kind of mode is conventional pulse modulation mode, and its short pulse of launching is to control by having or not of input signal, and common pulse debud mode is On-Off Key (OOK) modulation.
Another kind of commonplace mode makes the transmitter switch switch operating exactly, promptly allow the supply voltage of whole transmitter in a period of time, open, and close in the period at another section, and repeated the switch that carries out switches circulation, and this mode can effectively realize the high-energy emission effciency of ultra-broadband emitter system.
This mode that makes the transmitter switch switch operating can improve the energy utilization efficiency of ultra-broadband emitter system transmitter to a certain extent, but because the supply voltage of whole transmitter switch ceaselessly, and in the process that switch switches, discharge and recharge operation to various electric capacity (comprising circuit working electric capacity and parasitic capacitance etc.) owing to needs, therefore not only waste unnecessary energy consumption, and reduced the operating rate of transmitter.Therefore how realizing a kind of transmitter system framework of energy-efficient, is the problem that realizes that wireless sensor network transmitter realization low-power consumption needs emphasis to solve.
In sum, the ultra-broadband emitter system of prior art solves this problem because therefore the problem that adopts the switch switch operating to exist energy dissipation and operating rate to reduce, is necessary to propose improved technological means in fact as can be known.
Summary of the invention
For overcoming the problem that energy dissipation that above-mentioned prior art ultra-broadband emitter system exists and operating rate reduce, main purpose of the present invention is to provide a kind of ultra-broadband emitter system, it makes full use of the ultrashort pulse characteristic of ultra broadband, make the bigger transmitter module periodic intermittent of ultra-broadband emitter system power dissipation ground in the extremely short time, work and in other times, close, greatly saved the power consumption of transmitter.
For reaching above-mentioned and other purpose, a kind of ultra-broadband emitter of the present invention system comprises at least:
Base band pulse produces circuit, is used to receive base band data and produces the ultrashort pulse with little duty ratio;
Supply voltage switch driving circuit in the sheet receives this ultrashort pulse, intermittently works in one-period according to this ultrashort pulse control high-frequency generator and output stage driving amplifying circuit;
High-frequency generator produces the high-frequency oscillation signal that satisfies the radio ultra wide band system spectrum requirement under the control of supply voltage switch driving circuit in this sheet; And
Output stage drives amplifying circuit, receives this high-frequency oscillation signal of this high-frequency generator output, to amplify the impedance of transmitting antenna outside high-frequency oscillation signal and the driving chip under the control of supply voltage switch driving circuit in this sheet.
Further, the supply voltage switch driving circuit comprises first current drives at least in this sheet, supply voltage switch in second current drives and the sheet, wherein, this first current drives and this second current drives input are connected in the output that this base band pulse produces circuit, output is connected to this high-frequency generator and this output stage drives amplifying circuit, be used to be respectively this high-frequency generator and this output stage driving amplifying circuit supply voltage in the sheet is provided, the supply voltage switch is connected in this first current drives output and this high-frequency generator in this sheet, with with this sheet in during the supply voltage switch opens, control produces supply voltage drive circuit in this sheet ultra-narrow pulse moment loads on this high-frequency generator, make the p of this high-frequency generator, the n two-way causes the moment imbalance
Further, this ultra-narrow pulse duration is shorter than this ultrashort pulse.
Further, this high-frequency generator is the inductance capacitance tank oscillator.
Further, this base band pulse produces two pulse duration control bits of circuit adding to control the duration of this ultrashort pulse.
Further, add 4 centre frequency control bits to improve data transfer rate in this high-frequency generator.
Further, add the amplitude that 3 oscillation amplitude control bit controls transmit in this high-frequency generator.
Compared with prior art, a kind of ultra-broadband emitter of the present invention system intermittently works in the extremely short time in the cycle by supply voltage drive circuit control high-frequency generator in the sheet and output stage driving amplifying circuit and closes At All Other Times, greatly saved the power consumption of transmitter, avoided in the prior art because the supply voltage of whole transmitter switch ceaselessly, in the process that switch switches, need to the various capacitor charge and discharge operation unnecessary energy consumptions of having wasted, improved the operating rate of transmitter effectively, simultaneously, the present invention is by introducing the pulse duration control bit, centre frequency control bit and oscillation amplitude control bit, greatly increased the degree of freedom of ultra-broadband emitter of the present invention system, can guarantee that the signal of ultra-broadband emitter of the present invention system emission satisfies the requirement of ultra-wideband communication protocol and network communication of wireless sensor agreement.
Description of drawings
Fig. 1 is the configuration diagram of a kind of ultra-broadband emitter of the present invention system;
Fig. 2 is the circuit diagram of the interior supply voltage drive circuit of sheet among Fig. 1;
Fig. 3 is the time-domain and frequency-domain waveform schematic diagram of Gaussian pulse among the present invention.
Embodiment
Below by specific instantiation and accompanying drawings embodiments of the present invention, those skilled in the art can understand other advantage of the present invention and effect easily by the content that this specification disclosed.The present invention also can be implemented or be used by other different instantiation, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present invention not deviating from.
Fig. 1 is the configuration diagram of a kind of ultra-broadband emitter of the present invention system.As shown in Figure 1, a kind of ultra-broadband emitter of the present invention system comprises that at least base band pulse produces supply voltage switch driving circuit 102 in circuit 101, the sheet, high-frequency generator 103 and output stage driving amplifying circuit 104.
Wherein base band pulse generation circuit 101 is used to receive base band data, and produce ultrashort pulse with minimum duty ratio, in preferred embodiment of the present invention, to receive the base band data of 1Mbps, the generation duty ratio is that the ultrashort pulse of 2ns/1us (being about 0.2%) is an example, the ultrashort pulse of this minimum duty ratio controls high-frequency generator 103 by supply voltage switch driving circuit 102 in the sheet and output stage driving amplifying circuit 104 is intermittently worked in one-period, that is: make high-frequency generator only work in the utmost point short time (as 2.0ns) one-period (as 1us) in and the other times maintenance is closed, thereby produce the desired high-frequency oscillation signal of ultra broadband naturally, output stage by same periodic intermittent work drives the impedance (as 50 Ω) that amplifying circuit 104 amplifies high-frequency oscillation signal and the outer transmitting antenna of driving chip then, ultra-broadband emitter of the present invention system is owing to make the bigger transmitter module of power consumption (high-frequency generator 103 and output stage drive amplifying circuit 104) periodic intermittent ground work in the extremely short time and close in other times, made full use of the ultrashort pulse characteristic of ultra broadband, the power consumption of greatly having saved transmitter; Supply voltage switch driving circuit 102 is responsible for producing the data message that circuit 101 obtain being adjusted into the ultrashort pulse of minimum duty ratio from the base band pulses of upper level in the sheet, it mainly has two important function: the one, and the interior supply voltage (VDD) of sheet of controlling ultra-broadband emitter other main power consumption modules of system of the present invention (driving amplifying circuit 104 as high-frequency generator 103 and output stage) intermittently opens and closes in one-period, another produces a shorter ultra-narrow pulse of duration according to the ultrashort pulse that receives, and encourages the high-frequency generator 103 of next stage with the fastest speed starting of oscillation by this ultra-narrow pulse; High-frequency generator 103 is used for producing under the control of supply voltage switch handover operation in its sheet and satisfies the high-frequency oscillation signal that the ultra-broadband emitter system spectrum requires, and the output stage of giving next stage drives amplifying circuit 104 and launches by antenna, with supply voltage in the data transfer rate of 1Mbps, the sheet that duty ratio is 2ns/1us is example, high-frequency generator 103 just requires starting of oscillation at first rapidly in the time of 2ns so, produce the ultra-broadband signal that centre frequency is 3.25GHz, 3.80Ghz or 4.35GHz then, can close rapidly at last; And output stage drives amplifying circuit 104, receive the high-frequency oscillation signal of high-frequency generator 103 outputs, be used for amplifying high-frequency oscillation signal output (output of RF signal) under the control of supply voltage switch handover operation in sheet, and driving chip 50 Ω impedances of transmitting antenna outward.
Fig. 2 is the circuit diagram of supply voltage switch driving circuit in the sheet of ultra-broadband emitter of the present invention system.Below will cooperate Fig. 2 to further specify supply voltage switch driving circuit in the sheet, as shown in Figure 2, of the present invention interior supply voltage switch driving circuit comprises first current drives 201, supply voltage switch 203 in second current drives 202 and the sheet, wherein, first current drives 201 and second current drives 202 are connected in the output that base band pulse produces circuit 101, be used to be respectively high-frequency generator 103 and provide supply voltage in the sheet with output stage driving amplifying circuit 104, specifically, in preferred embodiment of the present invention, first current drives 201 and second current drives 202 all can be a buffer, it should be noted that, in preferred embodiment of the present invention, supply voltage separately in why need be these two sheets in design, be because level module (high-frequency generator 103 and output stage drive amplifying circuit 104) is when working after these two, especially when output stage drives amplifying circuit 104 work, output stage drives amplifying circuit 104 will extract a large amount of electric currents by power voltage terminal instantaneous (when promptly working) in the sheet of second current driving circuit 202, the influence service behaviour of module that is connected with the interior supply voltage of this sheet greatly, and with after supply voltage separates in the sheet of high-frequency generator 103 and output stage driving amplifying circuit 104, be actually these two modules (high-frequency generator 103 and output stage drive amplifying circuit 104) have been done good isolation on the circuit aspect, reduce the above-mentioned influence of crosstalking mutually and bringing to greatest extent, should be noted that the breadth length ratio that makes buffer wherein chooses enough greatly in this external design sheet during supply voltage switch driving circuit 102, because when high-frequency generator 103 and output stage drive amplifying circuit 104 work, will be from the instantaneous bigger electric current of flowing through here; Supply voltage switch 203 is connected in first current drives 201 and high-frequency generator 103 in the sheet, when supply voltage switch 203 is opened in the sheet, because produced a duration extremely short ultra-narrow pulse by supply voltage switch driving circuit 102 in the sheet this moment, when supply voltage switch 203 is opened in the sheet, this ultra-narrow pulse moment is loaded (kick) output one end at this high-frequency generator 103, make the p of high-frequency generator 103, the n two-way causes the moment imbalance, encouraged high-frequency generator 103 with the fastest speed starting of oscillation effectively, in addition, when supply voltage switch 201 cuts out in the sheet, because supply voltage is closed rapidly in the sheet of whole high-frequency generator 103, make the output waveform of high-frequency generator 103 correspondingly also present very precipitous done state, Fig. 3 is the time-domain and frequency-domain waveform schematic diagram of Gaussian pulse of the present invention, the schematic effect that there is shown the 103 rapid starting of oscillations of desirable high-frequency generator and finish rapidly to vibrate.
Please continue, thereby control the spectral characteristic that transmits better for the duration of controlling ultrashort pulse better with reference to Fig. 1, base band pulse produce circuit 101 often requirement can stablize and controllably produce the ultrashort pulse of certain duration.Equally to receive the base band data of 1Mbps, the generation duty ratio is that the ultrashort pulse of 2ns/1us is an example, for controlling the spectral characteristic that transmits better, base band pulse produce circuit 101 requirements can stablize and controllably produce the duration at 1.5ns to the super tape pulse between the 2.5ns, for reaching this purpose, the preferable generation in the circuit 101 at base band pulse of the present invention introduced 2 pulse duration control bits (2bits); Simultaneously, in order to improve the needs of data transfer rate, the transmit centre frequency of frequency spectrum of whole transmitter can be selected in 3.25GHz, 3.80Ghz and 4.35GHz, the present invention also adds 4 centre frequency control bits (4bits) in high-frequency generator 103; In addition, avoid exceeding the spectrum requirement of radio ultra wide band system owing to signal is excessive for the amplitude that transmits can be controlled better, the present invention has introduced 3 oscillation amplitude control bits (3bits) in high-frequency generator 103, in preferred embodiment of the present invention, these 2 pulse duration control bits, 4 centre frequency control bits and 3 oscillation amplitude control bits are to control and regulate by the microcontroller of wireless senser, their introducing has greatly increased the degree of freedom of ultra-broadband emitter of the present invention system, can guarantee that the signal of ultra broadband emission of the present invention and system's emission satisfies the requirement of ultra-wideband communication protocol and network communication of wireless sensor agreement.
From the above, in order to make high-frequency generator 103 of the present invention produce the high-frequency oscillation signal that satisfies the ultra broadband requirement, 2 very keys are arranged during design, whole oscillator starting of oscillation rapidly in the time of promptly can supply voltage switch 203 is opened in sheet, and whole oscillator must finish vibration rapidly when the supply voltage switch cuts out in the sheet.Producing circuit 101 with base band pulse, to produce duty ratios be that the ultrashort pulse of 2ns/1us is an example, because the 103 whole operating times of high-frequency generator have only the time about 2ns, so then need high-frequency generator 103 (as 0.5ns) in the extremely short time to finish the starting of oscillation and the end operation of whole high-frequency generator 103, if do not do special processing, when supply voltage switch 201 opens or cuts out in the sheet, 103 pairs of sheet endoparasitisms of whole high-frequency generator electric capacity discharge and recharge the effect that can greatly influence high-frequency generator 103 starting of oscillations and close, this has also just directly influenced the output time domain waveform of the uwb short pulse that is produced, thereby make its signal spectrum substantial deviation expected design, in order to reach this two effects well, high-frequency generator 103 of the present invention can be realized by inductance capacitance tank oscillator (LC-tank oscillator), in addition, control the gate voltage of tail current source by 3 oscillation amplitude control bits, the effect of whole high-frequency generator 103 electric currents of control can be reached, thereby the spectrum requirement that the amplitude that transmits satisfies radio ultra wide band system can be controlled better.
As seen, ultra-broadband emitter of the present invention system drives amplifying circuit by 102 control high-frequency generators 103 of supply voltage drive circuit in the sheet and output stage and intermittently works in the extremely short time in 104 cycles and close At All Other Times, greatly saved the power consumption of transmitter, avoided in the prior art because the supply voltage of whole transmitter switch and in the process that switch switches, needing ceaselessly to the various capacitor charge and discharges operation unnecessary energy consumptions of having wasted, improved the operating rate of transmitter effectively, simultaneously, the present invention introduces 2 pulse duration control bits by producing in base band pulse in the circuit 101, in high-frequency generator 103, introduce four centre frequency control bits and 3 oscillation amplitude control bits, greatly increased the degree of freedom of ultra-broadband emitter of the present invention system, can guarantee that the signal of ultra-broadband emitter of the present invention system emission satisfies the requirement of ultra-wideband communication protocol and network communication of wireless sensor agreement.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.Any those skilled in the art all can be under spirit of the present invention and category, and the foregoing description is modified and changed.Therefore, the scope of the present invention should be listed as claims.
Claims (10)
1. ultra-broadband emitter system comprises at least:
Base band pulse produces circuit, is used to receive base band data and produces the ultrashort pulse with little duty ratio;
Supply voltage switch driving circuit in the sheet receives this ultrashort pulse, intermittently works in one-period according to this ultrashort pulse control high-frequency generator and output stage driving amplifying circuit;
High-frequency generator produces the high-frequency oscillation signal that satisfies the radio ultra wide band system spectrum requirement under the control of supply voltage switch driving circuit in this sheet; And
Output stage drives amplifying circuit, receives this high-frequency oscillation signal of this high-frequency generator output, to amplify the impedance of transmitting antenna outside high-frequency oscillation signal and the driving chip under the control of supply voltage switch driving circuit in this sheet.
2. ultra-broadband emitter as claimed in claim 1 system, it is characterized in that: the supply voltage switch driving circuit comprises first current drives at least in this sheet, supply voltage switch in second current drives and the sheet, wherein, this first current drives and this second current drives input are connected in the output that this base band pulse produces circuit, output is connected to this high-frequency generator and this output stage drives amplifying circuit, be used to be respectively this high-frequency generator and this output stage driving amplifying circuit supply voltage in the sheet is provided, the supply voltage switch is connected in this first current drives output and this high-frequency generator in this sheet, with with this sheet in during the supply voltage switch opens, control produces supply voltage drive circuit in this sheet ultra-narrow pulse moment loads on this high-frequency generator, makes the p of this high-frequency generator, the n two-way causes the moment imbalance.
3. ultra-broadband emitter as claimed in claim 2 system, it is characterized in that: this ultra-narrow pulse duration is shorter than this ultrashort pulse.
4. ultra-broadband emitter as claimed in claim 3 system, it is characterized in that: this high-frequency generator is the inductance capacitance tank oscillator.
5. ultra-broadband emitter as claimed in claim 4 system is characterized in that: this base band pulse produces circuit and adds pulse duration control bit to control the duration of this ultrashort pulse.
6. ultra-broadband emitter as claimed in claim 5 system is characterized in that: this base band pulse produces circuit and adds at least two pulse duration control bits.
7. ultra-broadband emitter as claimed in claim 4 system is characterized in that: add centre frequency control bit to improve data transfer rate in this high-frequency generator.
8. ultra-broadband emitter as claimed in claim 7 system is characterized in that: add at least 4 centre frequency control bits in this high-frequency generator.
9. ultra-broadband emitter as claimed in claim 4 system is characterized in that: add the amplitude that the control of oscillation amplitude control bit transmits in this high-frequency generator.
10. ultra-broadband emitter as claimed in claim 9 system is characterized in that: add at least 3 oscillation amplitude control bits in this high-frequency generator.
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| CN201010619476.5A CN102098064B (en) | 2010-12-31 | 2010-12-31 | Ultra-wideband transmitter system |
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| CN201010619476.5A CN102098064B (en) | 2010-12-31 | 2010-12-31 | Ultra-wideband transmitter system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594290A (en) * | 2012-03-01 | 2012-07-18 | 中国科学院半导体研究所 | Oscillator circuit using narrow pulse to excite MEMS resonator |
| CN102891691A (en) * | 2012-10-25 | 2013-01-23 | 上海集成电路研发中心有限公司 | Ultra-wideband transmitter device |
| WO2018020499A1 (en) | 2016-07-27 | 2018-02-01 | Elbit Systems Land And C4I Ltd. | Reduction of power consumption in integral ultra-wideband power amplifiers |
| CN111077194A (en) * | 2019-12-31 | 2020-04-28 | 歌尔微电子有限公司 | Airflow sensor and electronic cigarette |
| CN113015087A (en) * | 2021-02-23 | 2021-06-22 | 四川中电昆辰科技有限公司 | Ultra-wideband positioning tag and positioning signal transmitting method |
| CN115276680A (en) * | 2022-07-11 | 2022-11-01 | 华南理工大学 | Multistage tunable ultra-wideband transmitter |
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| CN101394643A (en) * | 2007-09-21 | 2009-03-25 | 刘伯安 | System and method for sending and receiving ultra-wideband pulse or pulse sequence |
| US20100177803A1 (en) * | 2009-01-15 | 2010-07-15 | Sandlinks Systems Ltd. | Ultra wideband on-chip pulse generator |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594290A (en) * | 2012-03-01 | 2012-07-18 | 中国科学院半导体研究所 | Oscillator circuit using narrow pulse to excite MEMS resonator |
| CN102594290B (en) * | 2012-03-01 | 2014-11-05 | 中国科学院半导体研究所 | Oscillator circuit using narrow pulse to excite MEMS resonator |
| CN102891691A (en) * | 2012-10-25 | 2013-01-23 | 上海集成电路研发中心有限公司 | Ultra-wideband transmitter device |
| WO2018020499A1 (en) | 2016-07-27 | 2018-02-01 | Elbit Systems Land And C4I Ltd. | Reduction of power consumption in integral ultra-wideband power amplifiers |
| US10693419B2 (en) | 2016-07-27 | 2020-06-23 | Elbit Systems Land And C4I Ltd. | Reduction of power consumption in integral ultra-wideband power amplifiers |
| CN111077194A (en) * | 2019-12-31 | 2020-04-28 | 歌尔微电子有限公司 | Airflow sensor and electronic cigarette |
| CN113015087A (en) * | 2021-02-23 | 2021-06-22 | 四川中电昆辰科技有限公司 | Ultra-wideband positioning tag and positioning signal transmitting method |
| CN113015087B (en) * | 2021-02-23 | 2022-08-23 | 四川中电昆辰科技有限公司 | Ultra-wideband positioning tag and positioning signal transmitting method |
| CN115276680A (en) * | 2022-07-11 | 2022-11-01 | 华南理工大学 | Multistage tunable ultra-wideband transmitter |
| CN115276680B (en) * | 2022-07-11 | 2023-05-05 | 华南理工大学 | Multistage tunable ultra-wideband transmitter |
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| CN102098064B (en) | 2015-02-04 |
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