CN102082579B - Ultralow-power consumption constant-envelope transceiver system and implementation method thereof - Google Patents
Ultralow-power consumption constant-envelope transceiver system and implementation method thereof Download PDFInfo
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- CN102082579B CN102082579B CN2010106206565A CN201010620656A CN102082579B CN 102082579 B CN102082579 B CN 102082579B CN 2010106206565 A CN2010106206565 A CN 2010106206565A CN 201010620656 A CN201010620656 A CN 201010620656A CN 102082579 B CN102082579 B CN 102082579B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses an ultralow-power consumption constant-envelope transceiver system and an implementation method thereof. The ultralow-power consumption constant-envelope transceiver system comprises a stacked current duplex module, a passive frequency mixer, an adaptive gain frequency mixer, a reconstructable filter, a peak detection module, a phaselocked loop and a transceiver antenna, wherein the stacked current duplex module is provided with a voltage-controlled oscillator, a frequency divider, a low-noise amplifier and a power amplifier. In the invention, a large number of modules in the transceiver system are integrated, current duplex and module reconstruction are realized at multiple places, a receiver automatically regulates a bias current according to the intensity of a received signal, and thus, the dynamic regulation of power consumption is realized to realize the ultralow power consumption of the entire receiver. Compared with the conventional transceiver system, the system has ultralow power consumption, a simple structure and convenience for design.
Description
Technical field
The invention belongs to wireless communication technology field, relate to wireless communication system transceiver module and radio frequency integrated circuit, be a kind of ultralow-power consumption constant-envelope transceiver system and its implementation.
Background technology
In recent years, under the promotion of the portable electric appts such as notebook computer, mobile communication and WSN, GPS develop rapidly, the low-power consumption receive-transmit system has become one of important development direction of radio frequency integrated circuit.The researcher mainly realizes the design of low-power consumption radio frequency integrated circuit from following angle both at home and abroad, first, from changing the angle of technique, as adopting the techniques such as BiCMOS and multi-Vt, but costliness and the latter's again manufacturing is relatively poor for its cost of these methods; Second, angle from circuit design technique, in the situation that does not change existing technique, realize the design of low-power consumption radio frequency integrated circuit, such as the sub-threshold region operating circuit, floating boom/accurate floating-gate MOS circuit, substrate Driving technique, substrate biasing technique, Self-cascading circuit, level mobile technology, current-mode circuit etc., yet because these technology have the shortcoming of self, so their ranges of application separately are subject to certain restrictions.
Summary of the invention
The technical problem to be solved in the present invention is: existing low-power consumption radio frequency integrated circuit improvement process costs is expensive, manufacturing is relatively poor, also there are a lot of problems in existing improvement circuit design, range of application is restricted, a kind of ultralow-power consumption constant-envelope transceiver system need to be provided, comprise and receive and transmitter module, integrate receiving with transmitter module, reduce the power consumption of system.
Technical scheme of the present invention is: a kind of ultralow-power consumption constant-envelope transceiver system, comprise stacked current multiplexing module, passive frequency mixer, adaptive gain frequency mixer, restructural filter, phase-locked loop, peak detection block and dual-mode antenna, stacked current multiplexing module is provided with voltage controlled oscillator, frequency divider, low noise amplifier and power amplifier; After baseband signal is passed through the restructural filter under the emission mode of operation, through passive frequency mixer and intrinsic signals mixing, radiofrequency signal after the mixing is through stacked current multiplexing module, by the switching gate voltage controlled oscillator, frequency divider, power amplifier circuit, transmit finally by dual-mode antenna, radiofrequency signal receives signal through dual-mode antenna under the reception mode of operation, receive signal through stacked current multiplexing module, by the switching gate voltage controlled oscillator, frequency divider, amplifier circuit in low noise, amplify through adaptive gain frequency mixer and intrinsic signals mixing and to signal, behind the restructural filter, the output intermediate-freuqncy signal, peak detection block is carried out FEEDBACK CONTROL to the adaptive gain frequency mixer
Wherein the voltage controlled oscillator of stacked current multiplexing module, frequency divider, low noise amplifier and power amplifier share a quiescent bias current, form the stacked current multiplexing structure of module; In the adaptive gain frequency mixer, at first pass through variable transconductance level, high-pass filtering by the radiofrequency signal that dual-mode antenna receives, then pass through mixer stage, output signal is through behind the low pass filter, turning back to the variable transconductance level amplifies again to signal, so that the mutual conductance amplifying stage obtains twice utilization, dynamic adjustments receive-transmit system power consumption is controlled in peak detection block control to the gain of adaptive gain frequency mixer; The restructural filter is realized by switch control module and two second-order low-pass filters.
The implementation method of above-mentioned ultralow-power consumption constant-envelope transceiver system is: the voltage controlled oscillator of stacked current multiplexing module, frequency divider, low noise amplifier and power amplifier share a quiescent bias current, when system works during in emission mode, voltage controlled oscillator, frequency divider, power amplifier shares one road current work, low noise amplifier is not worked, and system works is when receiving mode, voltage controlled oscillator, frequency divider, low noise amplifier shares one road current work, power amplifier is not worked, frequency divider is shunted voltage controlled oscillator always, final one road electric current of realizing is realized low power dissipation design for these four modules; In the adaptive gain frequency mixer, the transconductance stage of frequency mixer, the radio-frequency voltage signal is converted into radio-frequency current, two balance MOS switches are modulated the radio-frequency current of input, the output intermediate-freuqncy signal, intermediate-freuqncy signal turns back to transconductance stage again through low-pass filtering, signal is further amplified, so that trsanscondutance amplifier obtains twice utilization, the mutual conductance amplifying stage adopts source degeneracy structure, peak detection block is according to the signal strength signal intensity that detects, produce corresponding control voltage, control source degeneracy resistance value changes the mutual conductance of mutual conductance amplifying stage, also change simultaneously the direct current biasing of circuit, realize the dynamic adjustment of gain-variable and system power dissipation; The restructural filter selects the restructural filter to be operated in low pass pattern or the logical pattern of plural number band by switch control module, realizes the restructural of filter.
Voltage controlled oscillator of the present invention, frequency divider, low noise amplifier and power amplifier share a bias current; The adaptive gain frequency mixer is partly adopted in the lower mixing of receiving unit, gain-variable, signal obtains twice amplification in the transconductance stage of frequency mixer, pass through to adopt the automatic gain structure in transconductance stage simultaneously, change the transconductance stage mutual conductance, realize the effect that variable gain is amplified, the uppermixing of radiating portion adopts passive frequency mixer to reduce power consumption; Receive with the filter of launching and adopt reconfigurable structures, by the function of gating switch realization second-order low-pass filter and complex bandpass filters, save power consumption and the chip area of system.The present invention improves traditional receive-transmit system structure from optimizing radio system structure angle, and some modules in the system are integrated, and electric current is multiplexing between the realization module, perhaps realizes several functions with a module.
The present invention has ultralow power consumption with respect to traditional receive-transmit system, and is simple in structure, and low noise amplifier and voltage controlled oscillator, frequency divider in emission system intermediate power amplifier and the receiving system are shared one road bias current; Realize lower mixing, variable gain by a module, reach current multiplexing; Upper frequency mixer uses the low-power consumption passive frequency mixer; The second order filter of receive-transmit system adopts reconfigurable structures, receive the different bias currents of automatically regulating of signal strength signal intensity according to receiver, regulate the gain size, thereby power consumption is dynamically adjusted, switch comes gating low pass filter or complex bandpass filters, during whole receive-transmit system normal operation, power consumption only is 3mW.
Description of drawings
Fig. 1 is ultralow-power consumption constant-envelope transceiver system main body circuit block diagram of the present invention.
Fig. 2 is low noise amplifier of the present invention, frequency divider, power amplifier, voltage controlled oscillator current multiplexing schematic diagram.
Fig. 3 is the adaptive gain frequency mixer theory diagram with variable gain, filter function of the present invention.
Fig. 4 is the adaptive gain mixer schematic diagram with variable gain, filter function of the present invention.
Fig. 5 is the passive frequency mixer schematic diagram.
Fig. 6 is the complex filter circuit theory diagrams of restructural filter of the present invention.
Embodiment
The following describes implementation of the present invention.
Such as Fig. 1, the present invention includes stacked current multiplexing module 1, passive frequency mixer 2, adaptive gain frequency mixer 3, restructural filter 4, phase-locked loop 5, peak detection block 6 and dual-mode antenna 7, stacked current multiplexing module 1 is provided with voltage controlled oscillator, frequency divider, low noise amplifier and power amplifier; After baseband signal is passed through the restructural filter under the emission mode of operation, through passive frequency mixer and intrinsic signals mixing, radiofrequency signal after the mixing is through stacked current multiplexing module, by the switching gate voltage controlled oscillator, frequency divider, power amplifier circuit, finally by the antenna transmission signal, radiofrequency signal is through antenna receiving signal under the reception mode of operation, receive signal through stacked current multiplexing module, by the switching gate voltage controlled oscillator, frequency divider, amplifier circuit in low noise, amplify through adaptive gain frequency mixer and intrinsic signals mixing and to signal, behind the restructural filter, the output intermediate-freuqncy signal, peak detection block is carried out FEEDBACK CONTROL to the adaptive gain frequency mixer.
Wherein, such as Fig. 2, the voltage controlled oscillator of stacked current multiplexing module 1, frequency divider, low noise amplifier and power amplifier are the module layer stack structure, voltage controlled oscillator, frequency divider and power amplifier are used for transmitting, voltage controlled oscillator, frequency divider and low noise amplifier are used for receiving signal, transmitting and receiving of system shares voltage controlled oscillator and frequency divider, voltage controlled oscillator, frequency divider, low noise amplifier and power amplifier are that module shares a quiescent bias current, form the stacked current multiplexing structure of module.
Frequency mixer generally is comprised of 3 parts: transconductance stage, mixer stage and load stage, such as Fig. 3, in the adaptive gain frequency mixer 3 of the present invention, at first pass through the variable transconductance level by the radiofrequency signal that dual-mode antenna (7) receives, high-pass filtering, then pass through mixer stage, output signal is through behind the low pass filter, turning back to the variable transconductance level amplifies again to signal, so that the mutual conductance amplifying stage obtains twice utilization, the mutual conductance amplifying stage adopts source degeneracy structure, peak detection block (6) is according to the signal strength signal intensity that detects, produce corresponding control voltage, control source degeneracy resistance value changes the mutual conductance of mutual conductance amplifying stage, also change simultaneously the direct current biasing of circuit, realize the dynamic adjustment of gain-variable and system power dissipation; Restructural filter 4 adopts switch control module, selects restructural filter 4 to be operated in low pass pattern or the logical pattern of plural number band.
Because voltage controlled oscillator, frequency divider, low noise amplifier, power amplifier usually all need large bias current, and low noise amplifier and power amplifier are operated in respectively in the reception and emission mode of transceiver system in the receive-transmit system.Voltage controlled oscillator of the present invention, frequency divider, power amplifier, low noise amplifier adopt multimode stacked, the current multiplexing technology, under the emission mode of operation, selector switch S access B place, voltage controlled oscillator, frequency divider, the stacked common current of power amplifier module, and selector switch S access A place under the reception mode of operation, voltage controlled oscillator, frequency divider, the stacked common current of low noise amplifier module.Frequency divider is told one part of current according to circuit design to voltage controlled oscillator, and remaining electric current is to low noise amplifier or power amplifier.Low noise amplifier adopts source class inductor degeneration common source and common grid amplifier structure, and this structure realizes input arrowband coupling, utilizes cascodes to improve the isolation of system.Power amplifier also adopts cascodes, and this structure can be used different biasings as required, can be designed to category-A, category-B, C power-like amplifier.Low noise amplifier and power amplifier adopt identical LC load, and this its load form has good selecting frequency characteristic, adopt switched capacitor array to be used for revising the capacitance deviation that technique, temperature, voltage cause, regulate resonance frequency.Voltage controlled oscillator adopts the LC oscillator, by large electric capacity in parallel on low noise amplifier load inductance top, isolates the impact between voltage-controlled amplifier and other two modules.Frequency divider is shunted voltage controlled oscillator always.
Such as Fig. 4, adaptive gain frequency mixer of the present invention, namely the transconductance stage of the down-conversion mixer of receiving unit is by transistor PM0, PM3, NM0, NM1, capacitor C 0, C1, C2, C3, C15, C16, resistance R 1, R2, R3, R4 form, and capacitor C 0, C1, C2, C3, C15, C16 play the effect of short circuit to radio frequency, play simultaneously every straight effect, transconductance stage is converted into the radio frequency input current signal with the radio frequency input voltage signal, and PM0 and NM0 current multiplexing improve mutual conductance.Switching stage is comprised of transistor PM4, PM5, PM6, PM7, PM1, PM2 are that switching transistor improves dc bias current, switch control RF electric current is connected to output, carries out multiplication in current field, and the intermediate frequency load stage is by transistor NM2, NM3, resistance R 7, R8, capacitor C 6, C9, C10 form, and load stage adopts the LOCAL FEEDBACK technology, stablizes the output common mode level, capacitor C 6, C9, C10 present large impedance to the short circuit of radio frequency signal communication to intermediate frequency.R5, C7, R6, C8 realizes low-pass first order filter, the filtering radiofrequency signal, the output intermediate-freuqncy signal of logical frequency mixer, intermediate-freuqncy signal is passed through NM0 again, NM1 pipe common source amplifies, at NM0, the drain terminal output intermediate-freuqncy signal of NM1 is because C16, C15 is equivalent to open circuit to intermediate frequency, NM4, NM5 is as NM0, the source class degeneration resistance of NM1 is controlled voltage by changing on the grid, can change the linear resistance of metal-oxide-semiconductor, thereby change NM0, the equivalent transconductance of NM1 pipe, and then the gain of change intermediate frequency amplifier, this control voltage is produced by the RSSI circuit, according to the difference of receiver received signal strength size, the corresponding control voltage that produces, produce different source class degeneration resistance, can change the circuit static bias current simultaneously, thereby realize the dynamic power consumption of adjusting.Because the input of down-conversion mixer is radiofrequency signal, and output is intermediate-freuqncy signal, and therefore this adaptive gain frequency mixer does not form feedback at same frequency place signal, and then can not produce stability problem.
Fig. 5 is the passive frequency mixer circuit, adopts two balance MOS switches, is comprised of 4 metal-oxide-semiconductors, and the grid level of MOS switch is subjected to the control of difference intrinsic signals, has solved single balance cock mixting circuit and has existed LO to the feedthrough of IF.
Second order restructural filter of the present invention, when transceiver is in receiving mode, select complex bandpass filters by switching over, such as Fig. 6, be Closing Switch S1-S8, selective channel, radiofrequency signal is by after the quadrature intrinsic down-conversion, " division " occurs at frequency domain in desired signal and image signal, respectively in the imaginary axis each side on the contrary, if have one on frequency domain the axisymmetric filter of non-void they are processed, just can the filtering image signal and obtain desired signal, therefore can eliminate the impact of image signal; When transceiver was in emission mode, by cut-off switch S1-S8, whole filter was realized the function of second-order low-pass filter, thereby realized the restructural of filter, saved the power consumption of system.
The above only is preferred embodiments of the present invention; protection scope of the present invention is not limited with above-mentioned execution mode; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (2)
1. ultralow-power consumption constant-envelope transceiver system, it is characterized in that comprising stacked current multiplexing module (1), passive frequency mixer (2), adaptive gain frequency mixer (3), restructural filter (4), phase-locked loop (5), peak detection block (6) and dual-mode antenna (7), stacked current multiplexing module (1) is provided with voltage controlled oscillator, frequency divider, low noise amplifier and power amplifier; After baseband signal is passed through restructural filter (4) under the emission mode of operation, through passive frequency mixer (2) and intrinsic signals mixing, radiofrequency signal after the mixing is through stacked current multiplexing module (1), by the switching gate voltage controlled oscillator, frequency divider, power amplifier circuit, transmit finally by dual-mode antenna (7), radiofrequency signal receives signal through dual-mode antenna (7) under the reception mode of operation, receive signal through stacked current multiplexing module (1), by the switching gate voltage controlled oscillator, frequency divider, amplifier circuit in low noise, amplify with the intrinsic signals mixing and to signal through adaptive gain frequency mixer (2), behind restructural filter (4), the output intermediate-freuqncy signal, peak detection block (6) is carried out FEEDBACK CONTROL to adaptive gain frequency mixer (3)
Wherein voltage controlled oscillator, frequency divider, low noise amplifier and the power amplifier of stacked current multiplexing module (1) share a quiescent bias current, form the stacked current multiplexing structure of module; In the adaptive gain frequency mixer (3), at first pass through variable transconductance level, high-pass filtering by the radiofrequency signal that dual-mode antenna (7) receives, then pass through mixer stage, output signal is through behind the low pass filter, turning back to the variable transconductance level amplifies again to signal, so that the mutual conductance amplifying stage obtains twice utilization, peak detection block (6) is controlled the gain of adaptive gain frequency mixer, dynamic adjustments receive-transmit system power consumption; Restructural filter (4) is realized by switch control module and two second-order low-pass filters.
2. the implementation method of ultralow-power consumption constant-envelope transceiver system claimed in claim 1, the voltage controlled oscillator that it is characterized in that stacked current multiplexing module, frequency divider, low noise amplifier and power amplifier share a quiescent bias current, when system works during in emission mode, voltage controlled oscillator, frequency divider, power amplifier shares one road current work, low noise amplifier is not worked, and system works is when receiving mode, voltage controlled oscillator, frequency divider, low noise amplifier shares one road current work, power amplifier is not worked, frequency divider is shunted voltage controlled oscillator always, final one road electric current of realizing is realized low power dissipation design for these four modules; In the adaptive gain frequency mixer (3), the transconductance stage of frequency mixer, the radio-frequency voltage signal is converted into radio-frequency current, two balance MOS switches are modulated the radio-frequency current of input, the output intermediate-freuqncy signal, intermediate-freuqncy signal turns back to transconductance stage again through low-pass filtering, signal is further amplified, so that trsanscondutance amplifier obtains twice utilization, the mutual conductance amplifying stage adopts source degeneracy structure, peak detection block is according to the signal strength signal intensity that detects, produce corresponding control voltage, control source degeneracy resistance value changes the mutual conductance of mutual conductance amplifying stage, also change simultaneously the direct current biasing of circuit, realize the dynamic adjustment of gain-variable and system power dissipation; Restructural filter (4) selects restructural filter (4) to be operated in low pass pattern or the logical pattern of plural number band by switch control module, realizes the restructural of filter.
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| CN102638240B (en) * | 2012-04-24 | 2014-10-22 | 无锡中科微电子工业技术研究院有限责任公司 | Double-mode type active power filter circuit with adjustable bandwidth |
| CN102684631B (en) * | 2012-05-23 | 2014-11-12 | 东南大学 | Reconfigurable filter circuit for realizing plural filters and low-pass filtering |
| CN102882536B (en) * | 2012-08-28 | 2014-07-09 | 叶松 | Radio frequency receiver of BeiDou radio determination satellite service (RDSS) satellite navigation system |
| CN103546187B (en) * | 2013-11-01 | 2015-06-03 | 东南大学 | Radio frequency transceiver based on current reuse of same-phase branches I and orthogonal branches Q |
| CN104158508A (en) * | 2014-09-04 | 2014-11-19 | 王少夫 | Low-pass filter circuit |
| US9479114B1 (en) * | 2015-07-20 | 2016-10-25 | City University Of Hong Kong | Quadrature voltage controlled oscillator |
| CN105305968B (en) * | 2015-11-16 | 2017-05-31 | 东南大学 | A kind of recoverable frequency mixer of via Self-reconfiguration |
| CN106707013A (en) * | 2017-02-08 | 2017-05-24 | 深圳市硕亚科技有限公司 | Distributed low current detection system |
| CN107425239B (en) * | 2017-05-16 | 2019-10-18 | 中国电子科技集团公司第三十六研究所 | A kind of restructural bandpass filter and preparation method thereof |
| US10181868B2 (en) * | 2017-05-31 | 2019-01-15 | Silicon Laboratories Inc. | Apparatus for radio-frequency receiver with reduced power consumption and associated methods |
| CN107645300B (en) * | 2017-10-16 | 2020-04-10 | 中国科学院上海高等研究院 | Current multiplexing low-power consumption radio frequency receiver |
| CN107888224B (en) * | 2017-12-18 | 2019-08-27 | 南京中感微电子有限公司 | A kind of radio transceiver machine |
| CN109951202A (en) * | 2017-12-20 | 2019-06-28 | 炬芯（珠海）科技有限公司 | A kind of R-T unit of wireless signal, calculates equipment and storage medium at method |
| CN108183717A (en) * | 2017-12-30 | 2018-06-19 | 广州市广晟微电子有限公司 | A kind of receiver and control method of dynamic control power consumption |
| CN110677167B (en) * | 2019-09-30 | 2021-08-24 | 上海华虹宏力半导体制造有限公司 | Low voltage radio frequency front end structure |
| CN115149911B (en) * | 2022-08-30 | 2022-12-16 | 华南理工大学 | Ultra-wideband front-end chip, control method and design method |
| CN115396996B (en) * | 2022-10-25 | 2023-02-14 | 深圳芯盛思技术有限公司 | Chopped wave power-saving system and method for intermittent work of radio frequency |
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| CN101909040A (en) * | 2009-06-04 | 2010-12-08 | 株式会社理光 | Communication device |
| CN202004752U (en) * | 2010-12-31 | 2011-10-05 | 东南大学 | Ultra-low power consumption constant envelope transmitting-receiving system |
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| CN101909040A (en) * | 2009-06-04 | 2010-12-08 | 株式会社理光 | Communication device |
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