CN1692558A - Transmitting method and transmitter apparatus - Google Patents
Transmitting method and transmitter apparatus Download PDFInfo
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- CN1692558A CN1692558A CN 200380100381 CN200380100381A CN1692558A CN 1692558 A CN1692558 A CN 1692558A CN 200380100381 CN200380100381 CN 200380100381 CN 200380100381 A CN200380100381 A CN 200380100381A CN 1692558 A CN1692558 A CN 1692558A
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Abstract
A transmitting method and a transmitter apparatus wherein no manual adjustments are required, the delay amount of delay means is automatically so adjusted as to minimize distortion components outside the band of signals to be transmitted, and wherein correct timing is realized. In this transmitter apparatus, first delay means adjusts the control timing of a voltage that controls power-amplifying means. A distributor feeds back a part of an output from the power-amplifying means. Distortion-adjusting means uses a signal fed back by the distributor to calculate the distortion components of a transmitted signal, and automatically so adjusts the delay amount of the first delay means as to minimize the distortion components. This eliminates the necessity of manual adjustments, reduces the distortion, and provides a high efficiency of power supply.
Description
Technical field
The present invention relates to be used for to improve the linearity of power amplifier of wireless communication system and the sending method and the dispensing device of power efficiency.
Background technology
The power amplifier of the dispensing device in the wireless communication system is the circuit of consumed power in whole device, so wish to improve its power efficiency.Wireless communication system in recent years is in order to carry out the large-capacity data transmission, use the linearly modulated signal of high-speed wideband, do not use the high so-called C level of power efficiency or the nonlinear amplifier of D level, but the so-called A level that allows compensation (output peak swing level is poor with the output saturated power level) have to use the power efficiency difference in suitable leeway or the linear amplifier of AB level.
This dispensing device is in order to improve power efficiency, if dwindle compensation, then distortion increases, and spread spectrum tends to adjacent communication channel is caused impairment.
Solve an example of power efficiency that improves power amplifier and the method for guaranteeing linear problem, be to remove envelope and restoring method (EER:Envelope Elimination and Restoration) (Kahn work " Single-sideband transmission by envelope elimination and restoration ", Proc.IRE, July nineteen fifty-two, pp.803～806).Dispensing device based on this method, to send signal decomposition is amplitude composition and phase component, becoming the phase component of deciding envelope signal amplifies with the high nonlinear amplifier of power efficiency, power supply according to its amplifier of amplitude Composition Control, thus, carry out reconstructing of amplitude composition and phase component.
Fig. 7 is the configuration example of the dispensing device of removing envelope and restoring method in the past.The transmission RF signal 301 that distributor 302 will be imported is distributed to Limiter circuit 303 and envelope detecting circuit 306.303 pairs of signals that distribute from distributor 302 of Limiter circuit carry out amplitude, obtain sending the phase component of RF signal 301.Delay circuit 304 is given the delay suitable with the output of Limiter circuit 303.
Power amplifier 305 is amplified to desirable performance number with the output of delay circuit 304.Envelope detecting circuit 306 carries out the envelope detection to the signal from distributor 302, obtains sending the amplitude composition of RF signal 301.Voltage control DC converter 307, according to signal from 306 outputs of envelope detecting circuit, the voltage of output control power amplifiers 305.
For example, when power amplifier 305 was FET (field-effect transistor), from the voltage of voltage control DC converter 307, the drain voltage by control power amplifiers 305 carried out Modulation and Amplitude Modulation.By above action, the output of power amplifier 305 becomes the signal that reconstructs amplitude composition and phase component, is sent by antenna 308.
The envelope tracing is known technology as solving the another method that improves power efficiency and guarantee linear problem.(Raab work " Power amplifiers and transmitters for RF andmicrowave " Raab, F.H.; Asbeck, P.; Cripps, S.; Kenington, P.B.; Popovic, Z.B.; Pothecary, N.; Sevic, J.F.; Sokal, N.O.; Microwave Theory and Techniques, IEEE Transactions on, Volume:50 Issue:3, March 2002, Page (s): 814-826).
This method detect to send the amplitude composition of RF signal with linear envelope detector, gives voltage with power amplifier according to detected amplitude Composition Control.Because phase component and also have the former transmission RF signal of amplitude change to be transfused to power amplifier not only is so power amplifier must be a linear amplifier.
In such formation in the past, must be by delay circuit, make voltage-controlled timing exactly with to send signal consistent.Fig. 8 A is illustrated in the frequency spectrum of the transmission signal when in the voltage control timing error being arranged, and Fig. 8 B is illustrated in the frequency spectrum when not having timing error in the voltage control.
When timing error, shown in Fig. 8 A, produce distortion composition 401, cause the performance degradation that sends signal and the generation of adjacent channel is disturbed.When not having timing error, shown in Fig. 8 B, can obtain not having the transmission signal 402 of distortion.
But the adjustment of above-mentioned timing is manual adjustment operation, and is more bothersome.In addition, once adjusted timing can not be followed the tracks of the equipment energy characteristic that causes because of thereafter variations in temperature or timeliness variation etc. sometimes and change.
Summary of the invention
The invention provides does not need manual adjustment to operate and adjust automatically the retardation of deferred mount so that the distortion composition that sends outside the signal band becomes minimum, realizes the sending method and the dispensing device of timing accurately.
Sending method of the present invention, it is the voltage-controlled sending method of carrying out power amplifier device according to the envelope amplitude that sends signal, be the distortion composition that detects from the output signal of power amplifier device, be the minimum control sending method regularly of controlling the voltage of power controlling amplifying device automatically for making the distortion composition.
According to said method, can not need manual adjustment operation, be the minimum retardation of adjusting deferred mount automatically for making the distortion composition that sends outside the signal band, realize accurately regularly.
Dispensing device of the present invention has: control the 1st deferred mount regularly of adjusting the voltage of power controlling amplifying device; Be used to distribute the also distributor of the output of feedback power amplifying device; Calculate the distortion composition that sends signal with the signal that utilizes the distributor feedback, be the minimum distortion adjusting device of adjusting the retardation of the 1st deferred mount automatically for making the distortion composition.
According to above-mentioned formation, can not need manual adjustment operation, be the minimum retardation of adjusting deferred mount automatically for making the distortion composition that sends outside the signal band, realize accurately regularly.
Description of drawings
Fig. 1 is the block diagram of the dispensing device of the present invention the 1st embodiment.
Fig. 2 is the block diagram of the dispensing device of the present invention the 2nd embodiment.
Fig. 3 is the block diagram of the dispensing device of the present invention the 3rd embodiment.
Fig. 4 is the block diagram of the dispensing device of the present invention the 4th embodiment.
Fig. 5 is the block diagram of the dispensing device of the present invention the 5th embodiment.
Fig. 6 is the block diagram of the dispensing device of the present invention the 6th embodiment.
Fig. 7 is the block diagram of traditional dispensing device.
Fig. 8 is that expression is when having the voltage-controlled timing error of power amplifier and the diagram of the spectral characteristic of the transmission signal when not having timing error.
Embodiment
Use diagram that embodiments of the invention are described below.
The 1st embodiment
Fig. 1 is the block diagram of the dispensing device of the present invention the 1st embodiment.The signal that delay circuit 102 postpones and output is imported.DA converter 103 is an analog signal with the signal transformation of being imported.Frequency-conversion circuit 104 upwards is transformed to the RF signal with the signal of being imported.Power amplifier 105 amplifies the signal of being imported.Magnitude determinations circuit 106, the amplitude composition of the signal that calculating and output are imported.
Delay circuit 107 postpones the signal of being imported.DA converter 108 is an analog signal with the signal transformation of being imported.Voltage control DC converter 109, according to output from DA converter 108, the voltage of output control power amplifiers 105.Distributor 110 will be distributed to antenna 111 and frequency-conversion circuit 112 from the output of power amplifier 105.
Antenna 111 sends the signal that is distributed by distributor 110.The frequency of the signal that frequency-conversion circuit 112, conversion are distributed by distributor 111.AD converter 113 is a digital signal with the signal transformation of being imported.Out-of-band power counting circuit 114 calculates the out-of-band power in the signal of being imported.Retardation counting circuit 115, for make by out-of-band power counting circuit 114 resulting out-of-band powers diminish the computing relay amount and output.
The action of dispensing device is described in the above-described configuration.
Delay circuit 102 to sending baseband signal 101, only postpones the retardation of retardation counting circuit 115 indications.DA converter 103, the signal transformation of self-dalay circuit 102 is analog signal in the future.Frequency-conversion circuit 104 will upwards be transformed to desirable RF signal from the signal of DA converter 103.Power amplifier 105 will be amplified to desirable performance number from the signal of frequency translation circuit 104.
Be transfused to signal, because be the linearly modulated signal of following envelope amplitude change, so, adopt the linear amplifier of A level or AB level etc. as the type of power amplifier to power amplifier 105.
On the other hand, magnitude determinations circuit 106 calculates and exports the amplitude composition that sends baseband signal.Delay circuit 107 becomes score value to the amplitude from 106 outputs of magnitude determinations circuit, only postpones the retardation of counting circuit 115 indications.DA converter 108, the signal transformation of self-dalay circuit 107 is analog signal in the future.Voltage control DC converter 109, according to output from DA converter 108, the voltage of output control power amplifiers 105.
For example, when power amplifier 105 is FET, by controlling its drain voltage or grid voltage from the voltage of voltage control DC converter 109.
Distributor 110 will be distributed to antenna 111 and frequency-conversion circuit 112 from the output of power amplifier 105.Antenna 111 sends the signal that is distributed by distributor 110.Frequency-conversion circuit 112, the signal downward conversion that will be distributed by distributor 110 is baseband signal or IF signal.AD converter 113 will be digital signal from the signal transformation of frequency translation circuit 112.
Out-of-band power counting circuit 114 calculates from the out-of-band power in the signal of AD converter 113.Out-of-band power for example, is adjacent channel leakage performance number or adjacent channel leakage power ratio.When causing the adjacent channel leakage power ratio to surpass the value of regulation because of the fault of power amplifier 105 etc., stop the action of this device, thus, prevent by the antenna transmission abnormal signal.
Retardation counting circuit 115 for making by the out-of-band power counting circuit 114 resulting out-of-band powers computing relay amount that diminishes, and is exported to delay circuit 102,107.
Therefore, because retardation counting circuit 115 is set the retardation of delay circuit 102,107 so that diminished by out-of-band power counting circuit 114 resulting out-of-band powers, and the control of carrying out the power amplifier 105 that undertaken by voltage control DC converter 109 is automatically regularly adjusted, so this dispensing device can obtain distorting less and high power efficiency.
In addition, delay circuit 102,107 can be realized in order to the structure of the delay line of the buffer storage of the delay unit of necessity or band tap.When with these change retardations, the former is undertaken by the change of buffering capacity, and the latter is undertaken by the change of tap coefficient.
The 2nd embodiment
Fig. 2 is the block diagram of the dispensing device of the 2nd embodiment of the present invention.
Computing circuit 218 is made of magnitude determinations circuit 202 and phase calculation circuit 203.Magnitude determinations circuit 202 calculates the amplitude composition of the transmission baseband signal of being imported 201.Phase calculation circuit 203 calculates the phase component of the transmission baseband signal of being imported 201.The output signal of delay circuit 204 phase retardation counting circuits 203.
DA converter 205 is an analog signal with the output transform of delay circuit 204.Voltage-controlled oscillator 206 carries out phase modulated according to the output of DA converter 205.The frequency of the output of frequency-conversion circuit 207 voltage of transformation control generators 206.Power amplifier 208 is amplified to desirable performance number with the output of frequency-conversion circuit 207.Delay circuit 209 postpones the output signal of magnitude determinations circuit 202.
DA converter 210 is transformed to analog signal with the output signal of delay circuit 209.Voltage control DC converter 211 is exported the voltage of control power amplifiers 208 according to the output signal from DA converter 210.Distributor 212 will be given antenna 213 and frequency-conversion circuit 214 from the signal allocation of power amplifier 208.Antenna 213 sends the signal from distributor 212.
Frequency-conversion circuit 214 conversion are from the frequency of the signal of distributor 212.AD converter 215 will be digital signal from the signal transformation of frequency translation circuit 214.Out-of-band power counting circuit 216 calculates the outer power of band in the signal of being imported.Retardation counting circuit 217 diminishes for making by out-of-band power counting circuit 216 resulting out-of-band powers, calculates and the output delay amount.
Below, the action of dispensing device in the above-described configuration is described.
Computing circuit 218 inputs send baseband signal 201, calculate the amplitude composition with magnitude determinations circuit 202 respectively, calculate phase component with phase calculation circuit 203.204 pairs of phase components from 203 outputs of phase calculation circuit of delay circuit only postpone the retardation that counting circuit 217 is indicated.DA converter 205 signal transformation of self-dalay circuit 204 in the future is an analog signal.
Voltage-controlled oscillator 206 carries out phase modulated according to the signal of being exported from DA converter 205.Frequency-conversion circuit 207 upwards is transformed to the RF signal with the output of voltage-controlled oscillator 206.Power amplifier 208 is enlarged into desirable performance number with the output of frequency-conversion circuit 207.Because input to the signal of power amplifier 208 is to decide envelope signal, so power amplifier 208 can use the nonlinear amplifier of good C level of power efficiency or D level etc.
On the other hand, 209 pairs of amplitude compositions of delay circuit, the only retardation of delay counting circuit 217 appointments from 202 outputs of magnitude determinations circuit.DA converter 210 signal transformation of self-dalay circuit 209 in the future is an analog signal.Voltage control DC converter 211 is exported the voltage of control power amplifiers 208 according to the signal from 210 outputs of DA converter.
For example, when power amplifier 208 is FET, use the voltage from voltage control DC converter 211, the drain voltage by control power amplifiers 208 carries out Modulation and Amplitude Modulation.Distributor 212 is distributed to antenna 213 and frequency-conversion circuit by the control of voltage control DC converter 211 with the output that receives amplitude-modulated power amplifier 208.Antenna 213 sends the signal that is distributed by distributor 212.
Frequency-conversion circuit 214 is baseband signal or IF signal with the signal break-in down conversion that distributor 212 distributes.AD converter 215 will be digital signal from the signal transformation of frequency translation circuit 214.Out-of-band power counting circuit 216 calculates the outer power of band of the transmission signal that output comprised of AD converter 215.As out-of-band power, can use adjacent channel leakage performance number or adjacent channel leakage power ratio.
Because the faults of power amplifier 208 etc. when the power outside the band surpasses the value of regulation, stop the action of this device, to prevent sending anomalous signals by antenna 213.Retardation counting circuit 217 is according to the output of out-of-band power counting circuit 216, and computing relay amount on the direction that out-of-band power diminishes is exported to delay circuit 204,209.
Therefore, because retardation counting circuit 217 is set the retardation of delay circuit 204,209 for making to diminish by out-of-band power counting circuit 216 resulting out-of-band powers, and the control of carrying out the power amplifier 208 that undertaken by voltage control DC converter 211 automatically regularly adjusts, so this dispensing device can obtain distortion less and high power efficiency.
The 3rd embodiment
Fig. 3 is the block diagram of the dispensing device of the 3rd embodiment of the present invention.
Computing circuit 518 is made of magnitude determinations circuit 502 and phase calculation circuit 503.Magnitude determinations circuit 502 calculates the amplitude composition of the transmission baseband signal of being imported 501.Phase calculation circuit 503 calculates the phase component of the transmission baseband signal of being imported 501.The output signal of delay circuit 504 phase retardation counting circuits 503.
DA converter 505 is an analog signal with the output transform of delay circuit 504.Voltage-controlled oscillator 506 carries out phase modulated according to the output of DA converter 505.The output signal frequency of frequency-conversion circuit 507 voltage of transformation control generators 506.Power amplifier 508 is amplified to desirable performance number with the output of frequency-conversion circuit 507.Delay circuit 509 postpones the output signal of magnitude determinations circuit 502.
DA converter 510 is transformed to analog signal with the output signal of delay circuit 509.Voltage control DC converter 511 is exported the voltage of control power amplifiers 508 according to the output signal from DA converter 210.Distributor 512 will be given antenna 513 and frequency-conversion circuit 514 from the signal allocation of power amplifier 508.Antenna 513 sends the signal from distributor 512.
Frequency-conversion circuit 514 conversion are from the frequency of the signal of distributor 512.AD converter 515 will be digital signal from the signal transformation of frequency translation circuit 214.The error percentage that error percentage counting circuit 516 calculates between two signals by the output signal and the transmission baseband signal 501 of AD converter 515.Retardation counting circuit 517 diminishes for making by error percentage counting circuit 516 resulting error percentages, the line output and the computing relay amount is gone forward side by side.
The dispensing device of the present invention the 3rd embodiment, be constitute for: retardation counting circuit 517 comes the computing relay amount according to the result of calculation of error percentage counting circuit 516.Therefore, the explanation of omission and the 2nd embodiment same place is that the center illustrates its action with the difference below.
Calculate the amplitude composition of transmission baseband signal 501 and the action of phase component from computing circuit 518, the processing till power amplifier 508 is sent by antenna 513 by distributor 512, identical with the 2nd embodiment.
The signal downward conversion that frequency-conversion circuit 514 is distributed distributor 512 is a baseband signal.AD converter 515 will be digital signal from the signal transformation of frequency translation circuit 514.The output signal of error percentage counting circuit 516 input AD converters 515 and send baseband signal 501 is calculated error percentage between two signals in predefined each sampling time.
Retardation counting circuit 517 is according to the error percentage from error percentage counting circuit 516, and computing relay amount on the direction that this error percentage diminishes is exported to delay circuit 504,509.
Therefore, because retardation counting circuit 517 is to set the retardation of delay circuit 504,509 for making to diminish by error percentage counting circuit 516 resulting error percentages, and the control of carrying out the power amplifier 508 that undertaken by voltage control DC converter 511 automatically regularly adjusts, so this dispensing device can obtain distortion less and high power efficiency.
Embodiment 4
Fig. 4 is the block diagram of the dispensing device of the 4th embodiment of the present invention.
Below, the action of dispensing device in the above-mentioned formation is described.
605 pairs of signals of delay circuit from filter 604, the retardation that a delay distortion testing circuit 614 is set.Phase-modulation circuit 606 carries out phase modulated according to the signal from delay circuit 605 outputs.Power amplifier 607 is enlarged into desirable power with the output of phase-modulation circuit 606.
On the other hand, DA converter 608 will be transformed to analog signal from the amplitude composition of magnitude determinations circuit 615 outputs.Filter 609 allows among the output from DA converter 608 specific frequency pass through, and gets rid of unwanted frequency.610 pairs of signals of delay circuit from filter 609, the retardation that a delay distortion testing circuit 614 is set.
Modulation and Amplitude Modulation circuit 611 is exported the voltage of control power amplifiers 607 according to the signal from delay circuit 610 outputs.By the control voltage from Modulation and Amplitude Modulation circuit 611, the amplitude composition appears in the output of power amplifier 607.
Phase-modulation circuit 606 for example, is voltage-controlled oscillator or the frequency-conversion circuit that adopts among above-mentioned the 1st～the 3rd embodiment.In addition, Modulation and Amplitude Modulation circuit 611 for example is the voltage control DC converter that adopts among above-mentioned the 1st～the 3rd embodiment.
The amount of distortion that distortion testing circuit 614 detects from the signal of distributor 612.The detection of amount of distortion is carried out by the following method: the method for the level of distortion frequency content is calculated in the digital processing that the transmission signal that is about to demodulation carries out Fourier transform etc.; Or after will sending signal frequency converting and being analog baseband signal, the distortion composition is carried out the method etc. that the level detection is carried out in filtering.Delay circuit 605,610 is according to coming the change delay amount from the control signal of distortion testing circuit 614 outputs.
This dispensing device is illustrated with the situation that has delay circuit on amplitude composition, phase component both sides' path.But, when the retardation of knowing which path in advance is big, also can make the path that delay circuit only is inserted into one of two paths.
This dispensing device is illustrated with the situation that the back level at filter 604,609 has connected delay circuit 605,610.But, also can allow filter 604,609 comprise the function of delay circuit 605,610.
Filter the 604, the 609th, the low pass filter work of the output of the level and smooth DA converter 603,608 of conduct is so by changing the component value of the circuit that constitutes this low pass filter, also can change by the retardation with interior signal.
Therefore, this dispensing device sends the retardation of the amplitude composition of signal or phase component by control so that to send the amount of distortion of output be minimum, can reduce the distortion by the power amplifier generation, and can obtain high power efficiency.
Embodiment 5
Fig. 5 is the block diagram of the dispensing device of the 5th embodiment of the present invention.
Computing circuit 704 is made of magnitude determinations circuit 719 and phase calculation circuit 720.Magnitude determinations circuit 719 calculates the amplitude composition of the transmission baseband signal of being imported 701.Phase calculation circuit 720 calculates the phase component of the transmission baseband signal of being imported 701.Switch 702 is made of coupled switch 702A and switch 702B.
Switch 702A switches and the signal of the output of output amplitude counting circuit 719 and the linear frequency modulation signal source 703 that changes from the frequency time.Switch 702B switches and the output of output phase counting circuit 720 and from the signal of linear frequency modulation signal source 703.DA converter 705 is an analog signal with the output transform of switch 702B.Filter 706 allows among the output signal of DA converter 705 specific frequency pass through.
The output signal of delay circuit 707 delay filters 706.The certain carrier signal of carrier signal source 709 output frequencies.The output of phase-modulation circuit 708 Mixed Delay circuit 707 and the signal in carrier signal source 709 generate phase modulated signal.Power amplifier 710 is amplified to desirable performance number with the output of phase-modulation circuit 708.DA converter 711 is transformed to analog signal with the output signal of switch 702A.
Filter 712 allows among the output signal of DA converter 711 specific frequency pass through.The output signal of delay circuit 713 delay filters 712.Modulation and Amplitude Modulation circuit 714 is exported the voltage of control power amplifiers 710 according to the output signal of delay circuit 713.Distributor 715 will be given antenna 716 and frequency-conversion circuit 717 from the signal allocation of power amplifier 710.
Antenna 716 sends the signal from distributor 715.Frequency-conversion circuit 717 is by the signal in carrier signal source 709, and conversion is from the frequency of the signal of distributor 715.Frequency content testing circuit 718 comes the retardation of control lag circuit 707,713 according to the output signal of frequency-conversion circuit 717.
Below, illustrate in the above-described configuration, the action of dispensing device.
This dispensing device when the adjustment of the retardation of carrying out delay circuit 707,713, by switch 702, switches to signal from linear frequency modulation signal source 703 with the input signal that inputs to DA converter 705,711 from the output signal from computing circuit 704.Be imported into the linear FM signal of DA converter 705,, pass through DA converter 705, filter 706 and delay circuit 707 from switch 702B as the 1st linear FM signal.
Phase-modulation circuit 708 mixes from the 1st linear FM signal of delay circuit 707 outputs and the carrier signal of 709 outputs from the carrier signal source.Power amplifier 710 is enlarged into desirable performance number with the output of phase-modulation circuit 708.
On the other hand, be imported into the linear FM signal of DA converter 711,, pass through DA converter 711, filter 712 and delay circuit 713 from switch 702A as the 2nd linear FM signal.Modulation and Amplitude Modulation circuit 714 is according to the bias voltage that comes power controlling amplifying circuit 710 from the 2nd linear FM signal of delay circuit 713 outputs.As a result, power amplifier 710 outputs have mixed the signal of the 1st linear FM signal and the 2nd linear FM signal.
The output signal of power amplifier 710 is assigned with by distributor 715, and a part of signal is imported into frequency-conversion circuit 717.Frequency-conversion circuit 717 mixes from distributor 715 and signal with from the carrier signal in carrier signal source 709, obtains having the signal of frequency content of the difference of the 1st linear FM signal and the 2nd linear FM signal.
The 1st linear FM signal and the 2nd linear FM signal, mixed at power amplifier 710, when between the path of amplitude composition and phase component, postponing difference, because mix the signal of same frequency, so frequency-conversion circuit 717 is output as the signal that only has flip-flop.On the other hand, when the difference of delay was arranged between the path, the signal of alternating component appearred having in the output of frequency-conversion circuit 717.
Therefore, frequency content testing circuit 718 detects alternating component from the output signal of frequency-conversion circuit 717 be frequency content, and the retardation of adjusting delay circuit 707,713 makes it become just flip-flop, thus, realizes the timing controlled between two paths.In addition, in frequency-conversion circuit 717, also include the 1st and the 2nd linear FM signal and frequency content, but this composition is unwanted, suppresses by low-pass filter ripple device.
Therefore, this dispensing device replaces sending baseband signal and utilizes linear FM signal, detect the frequency content of the signal that downward conversion crosses from the output of power amplifier, the retardation of adjusting delay circuit is so that this frequency content is a flip-flop, thus, can make the timing between the path of amplitude composition and phase component consistent.As a result, can realize reducing dispensing device distortion, that power efficiency is high that takes place by power amplifier.
The 6th embodiment
Fig. 6 is the block diagram of the dispensing device of the 6th embodiment of the present invention.
Linear FM signal translation circuit 820 is come conversion and is exported the signal of linear frequency modulation signal source 803 by the signal in the fixed frequency signal source 805 that changes from not free upper frequency.Switch 802 is made of coupled switch 802A and switch 802B.Switch 802A switches and the output of output amplitude counting circuit 821 and from the signal of linear frequency modulation signal source 803.
Switch 802B switches and the output of output phase counting circuit 822 and from the signal of linear FM signal translation circuit 820.DA converter 806 is an analog signal with the output transform of switch 802B.Filter 807 allows among the output signal of DA converter 806 specific frequency pass through.The certain carrier signal of carrier signal source 809 output frequencies.
Phase-modulation circuit 808 mixes the signal in carrier signal source 809 to generate phase modulated signal with the output of filter 807.Power amplifier 810 arrives desirable performance number with the power amplification of phase-modulation circuit 808.DA converter 811 is transformed to analog signal with the output signal of switch 802A.Filter 812 allows among the output signal of DA converter 811 specific frequency pass through.
Frequency-conversion circuit 817 is by the signal transformation in carrier signal source 809 frequency from the signal of distributor 815.The phase place of the output signal of phase-comparison circuit 818 comparison frequency translation circuits 817 and the phase place in fixed frequency signal source 805.The Phase synchronization that control signal filter 819 control phase comparison circuits 818 and delay circuit are 813.
Below, illustrate in the above-described configuration, the operation of dispensing device.
The elemental motion of this dispensing device is identical with the action of the dispensing device of the 5th embodiment.This dispensing device utilizes the 2nd linear FM signal of exporting after the signal of the 1st linear FM signal that taken place by linear frequency modulation signal source 803 and linear FM signal translation circuit 820 Mixed Stationary frequency signal sources 805 and the 1st linear FM signal.
The 1st linear FM signal is exported to the signal path of amplitude composition by DA converter 811, and the 2nd linear FM signal is exported to the signal path of phase component by DA converter 806.At this, do not have 2 delays between the path poor, and if 2 signals are mixed with identical timing in power amplifier 810, the then output of frequency-conversion circuit 817, for the signal of fixed frequency signal source 805 same frequencys.
The signal of so-called and fixed frequency signal source 805 same frequencys is exactly the signal with the difference on the frequency same frequency of the 1st and the 2nd linear FM signal.Therefore, the phase place of the phase place of the output signal of phase-comparison circuit 818 comparison frequency translation circuits 817 and the output signal in fixed frequency signal source 805, the retardation of adjusting delay circuit 813 is so that phase difference is a certain value, that is frequency is identical, thus, can control timing between two paths.
The use circuit element that component value changes with the voltage of transfiguration diode etc. constitutes delay circuit 813, making it can the voltage control delay amount, simultaneously, as loop filter control signal filter 819 is set, Phase synchronization action between control phase comparison circuit 818 and the delay circuit 813, thus, the amplitude composition that just can rely on Phase synchronization to control to be blended in power amplifier 810 and the timing adjustment of phase component.
By the difference on the frequency of the 1st and the 2nd linear FM signal of frequency-conversion circuit 817 output, the value by the delay difference of the signal path of amplitude composition and phase component also can cause consistent with the frequency in fixed frequency signal source 805.But,, can avoid by suitably set the frequency change of linear FM signal according to the delay difference of the signal path of being inferred.
In addition, so that the situation of delay circuit 813 to be set on the path of amplitude composition, this dispensing device is illustrated.But,, be the structure that delay circuit is set on the path of phase component in the fast occasion of time of the signal transmission in the path of phase component.
Therefore, this dispensing device, replace sending modulation signal, utilize 2 certain linear FM signals of difference on the frequency, Phase synchronization control from the output of power amplifier by the signal of carrier frequency signaling downward conversion with for making the identical Phase synchronization control of said frequencies difference send the amplitude composition of modulation signal or the signal delay amount of phase component, thus, in power amplifier, just can automatically make the timing that mixes amplitude composition and phase component consistent, thereby reduce the distortion that takes place by power amplifier, and obtain high power efficiency.
As mentioned above, dispensing device of the present invention, be constituted as: detect distortion composition from the output signal of power amplifier device, automatically control the power controlling amplifying device voltage control regularly so that the distortion composition for minimum, so, can realize reducing distortion that sends signal and the power efficiency that improves power amplifier device simultaneously.
Claims (14)
1. a sending method is characterized in that: be the voltage-controlled sending method of carrying out power amplifier device according to the envelope amplitude that sends signal; Detection is from the distortion composition of the output signal of above-mentioned power amplifier device, and the control of the voltage of the above-mentioned power amplifier device of control control automatically is regularly so that described distortion composition is minimum.
2. sending method according to claim 1 is characterized in that: above-mentioned distortion composition is the out-of-band power of above-mentioned transmission signal.
3. a dispensing device is characterized in that: have: control the 1st deferred mount regularly of adjusting the voltage of power controlling amplifying device; Be used to distribute and feed back the distributor of the output of above-mentioned power amplifier device; With, utilize by the signal that above-mentioned distributor fed back and calculate the distortion composition that sends signal, automatically adjust the retardation of above-mentioned the 1st deferred mount so that above-mentioned distortion composition is minimum distortion adjusting device.
4. dispensing device according to claim 3 is characterized in that: above-mentioned distortion composition is the out-of-band power of above-mentioned transmission signal.
5. dispensing device according to claim 4 is characterized in that: have:
Calculate the magnitude determinations device that sends the baseband signal amplitude;
Control the voltage-operated device of the bias voltage that offers above-mentioned power amplifier device according to the output of above-mentioned the 1st deferred mount;
The 2nd deferred mount of exporting to Yu postponing to above-mentioned transmission baseband signal;
With the output transform of above-mentioned the 2nd deferred mount is the 1st frequency-transposition arrangement of RF signal;
With the signal transformation of above-mentioned feedback is the 2nd frequency-transposition arrangement of baseband signal or IF signal; With
According to the output of above-mentioned distortion adjusting device, be adjusted at above-mentioned the 1st deferred mount and the 2nd deferred mount give with retardation so that the out-of-band power that is calculated by above-mentioned distortion adjusting device is minimum retardation calculation element;
Above-mentioned the 1st deferred mount is exported to and postpone above-mentioned magnitude determinations device,
Above-mentioned voltage-operated device is controlled above-mentioned bias voltage according to the output of above-mentioned the 1st deferred mount,
Above-mentioned power amplifier device amplifies the output of above-mentioned the 1st frequency-transposition arrangement,
Above-mentioned distortion adjusting device calculates above-mentioned out-of-band power according to the output of above-mentioned the 2nd frequency-transposition arrangement.
6. dispensing device according to claim 5 is characterized in that: above-mentioned out-of-band power is an adjacent channel leakage power.
7. dispensing device according to claim 6 is characterized in that: when above-mentioned distortion adjusting device is output as when unusual, stop the action of this dispensing device.
8. dispensing device according to claim 5 is characterized in that: when above-mentioned distortion adjusting device is output as when unusual, stop the action of this dispensing device.
9. dispensing device according to claim 5 is characterized in that: have:
Calculate the phase calculation device of above-mentioned transmission baseband signal phase place; With
According to the output of above-mentioned the 2nd deferred mount, the voltage controlled oscillator of output phase modulation signal;
Above-mentioned the 2nd deferred mount is exported to and postpone above-mentioned phase calculation device,
Above-mentioned the 1st frequency-transposition arrangement is the RF signal with the output transform of above-mentioned voltage controlled oscillator.
10. dispensing device according to claim 9 is characterized in that: above-mentioned out-of-band power is an adjacent channel leakage power.
11. dispensing device according to claim 10 is characterized in that:, stop the action of this dispensing device when above-mentioned distortion adjusting device is output as when unusual.
12. dispensing device according to claim 9 is characterized in that:, stop the action of this dispensing device when above-mentioned distortion adjusting device is output as when unusual.
13. dispensing device according to claim 3 is characterized in that: have:
According to the phase component that sends baseband signal, the envelope of being crossed by phase modulated generates the voltage controlled oscillator of certain carrier signal; With
Delay is transfused to the 3rd deferred mount to the signal of the above-mentioned phase component of above-mentioned voltage controlled oscillator;
Above-mentioned distortion adjusting device is adjusted the retardation of above-mentioned the 3rd deferred mount with above-mentioned the 1st deferred mount.
14. dispensing device according to claim 13 is characterized in that: the 1st filter of the signal that above-mentioned the 3rd deferred mount is the above-mentioned phase component of bandwidth constraints,
Above-mentioned the 1st deferred mount is the 2nd filter of the signal of the above-mentioned amplitude composition of bandwidth constraints,
Above-mentioned distortion adjusting device changes the characteristic of passing through of above-mentioned the 1st filter or the 2nd filter and comes the control lag amount.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002290911A JP3985649B2 (en) | 2002-10-03 | 2002-10-03 | Transmission method and transmission apparatus |
| JP290911/2002 | 2002-10-03 | ||
| JP150669/2003 | 2003-05-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1692558A true CN1692558A (en) | 2005-11-02 |
| CN100411307C CN100411307C (en) | 2008-08-13 |
Family
ID=32282645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801003810A Expired - Fee Related CN100411307C (en) | 2002-10-03 | 2003-10-02 | Transmitting method and transmitter apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3985649B2 (en) |
| CN (1) | CN100411307C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101841305A (en) * | 2009-03-19 | 2010-09-22 | 富士通株式会社 | Power amplifier device and power-magnifying method |
| CN102006090A (en) * | 2009-09-01 | 2011-04-06 | 富士通株式会社 | Transmission device and transmission method |
| CN102437860A (en) * | 2010-08-30 | 2012-05-02 | 英特尔移动通信技术有限公司 | DC power control for power amplifiers |
| CN103404025A (en) * | 2011-03-03 | 2013-11-20 | 埃普科斯股份有限公司 | Amplifier module |
| CN105229920A (en) * | 2013-05-22 | 2016-01-06 | 快速追踪有限公司 | Postpone adjustment |
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| US7359680B2 (en) * | 2004-09-14 | 2008-04-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Delay calibration in polar modulation transmitters |
| WO2006101094A1 (en) * | 2005-03-22 | 2006-09-28 | Matsushita Electric Industrial Co., Ltd. | Transmitting apparatus, communication device, and mobile wireless unit |
| JP4652974B2 (en) | 2005-12-27 | 2011-03-16 | 富士通株式会社 | Timing adjustment apparatus and timing adjustment method |
| JP2007189438A (en) | 2006-01-12 | 2007-07-26 | Fujitsu Ltd | Timing adjusting device and timing adjusting method |
| US7761066B2 (en) * | 2006-01-27 | 2010-07-20 | Marvell World Trade Ltd. | Variable power adaptive transmitter |
| JP5028966B2 (en) * | 2006-11-15 | 2012-09-19 | 日本電気株式会社 | amplifier |
| JP2008227598A (en) * | 2007-03-08 | 2008-09-25 | Toshiba Corp | Amplifying device |
| JP5100339B2 (en) * | 2007-12-03 | 2012-12-19 | 三菱電機株式会社 | Power amplifier |
| WO2012164951A1 (en) * | 2011-06-03 | 2012-12-06 | 京セラ株式会社 | Transmitter and signal processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6275685B1 (en) * | 1998-12-10 | 2001-08-14 | Nortel Networks Limited | Linear amplifier arrangement |
| FR2799063B1 (en) * | 1999-09-24 | 2001-12-21 | Centre Nat Etd Spatiales | MODULATED RADIOELECTRIC SIGNAL TRANSMITTER WITH SELF-ADAPTED POLARIZATION |
| US6374092B1 (en) * | 1999-12-04 | 2002-04-16 | Motorola, Inc. | Efficient multimode power amplifier |
| US6300826B1 (en) * | 2000-05-05 | 2001-10-09 | Ericsson Telefon Ab L M | Apparatus and method for efficiently amplifying wideband envelope signals |
| JP2002135062A (en) * | 2000-10-23 | 2002-05-10 | Sony Corp | Distortion compensating power amplifying device |
-
2002
- 2002-10-03 JP JP2002290911A patent/JP3985649B2/en not_active Expired - Fee Related
-
2003
- 2003-10-02 CN CNB2003801003810A patent/CN100411307C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841305A (en) * | 2009-03-19 | 2010-09-22 | 富士通株式会社 | Power amplifier device and power-magnifying method |
| CN101841305B (en) * | 2009-03-19 | 2013-01-16 | 富士通株式会社 | Power amplifying device and power amplifying method |
| CN102006090A (en) * | 2009-09-01 | 2011-04-06 | 富士通株式会社 | Transmission device and transmission method |
| CN102006090B (en) * | 2009-09-01 | 2013-11-06 | 富士通株式会社 | Transmission device and transmission method |
| CN102437860A (en) * | 2010-08-30 | 2012-05-02 | 英特尔移动通信技术有限公司 | DC power control for power amplifiers |
| CN102437860B (en) * | 2010-08-30 | 2016-05-18 | 英特尔移动通信有限责任公司 | For the DC power control of power amplifier |
| CN103404025A (en) * | 2011-03-03 | 2013-11-20 | 埃普科斯股份有限公司 | Amplifier module |
| US9219297B2 (en) | 2011-03-03 | 2015-12-22 | Epcos Ag | Amplifier module with multiple 90 degree hybrids |
| CN103404025B (en) * | 2011-03-03 | 2016-12-07 | 埃普科斯股份有限公司 | Amplifier module |
| CN105229920A (en) * | 2013-05-22 | 2016-01-06 | 快速追踪有限公司 | Postpone adjustment |
| US10075134B2 (en) | 2013-05-22 | 2018-09-11 | Snaptrack, Inc. | Delay adjustment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004128933A (en) | 2004-04-22 |
| JP3985649B2 (en) | 2007-10-03 |
| CN100411307C (en) | 2008-08-13 |
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