CN102684611A - Vector modulator using time delayer and phase shifters - Google Patents
Vector modulator using time delayer and phase shifters Download PDFInfo
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- CN102684611A CN102684611A CN2011100704237A CN201110070423A CN102684611A CN 102684611 A CN102684611 A CN 102684611A CN 2011100704237 A CN2011100704237 A CN 2011100704237A CN 201110070423 A CN201110070423 A CN 201110070423A CN 102684611 A CN102684611 A CN 102684611A
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Abstract
The invention discloses a vector modulator using a time delayer and phase shifters. The vector modulator comprises the time delayer (110), a first coupler (120), a first phase shifter (130), a second phase shifter (140) and a second coupler (150), wherein the time delayer (110) performs time delay to input signals to change phases of the input signals, the first coupler (120) converts the input signals with the phases changed through the time delay into an I channel signal and a Q channel signal which have phase difference of 90 degrees and outputs the I channel signal and the Q channel signal, the first phase shifter (130) changes the phase of the I channel signal output by the first coupler within a scheduled phase range and outputs the I channel signal with changed phase, the second phase shifter (140) changes the phase of the Q channel signal output by the first coupler within a scheduled phase range and outputs the Q channel signal with changed phase, and the second coupler couples the I channel signal with changed phase and the Q channel signal with changed phase and outputs a coupled signal.
Description
Technical field
The disclosure relates to a kind of service time of delayer and the vector modulator of phase shifter, and relate in particular to a kind of service time delayer and phase shifter be configured to come the vector modulator of the amplitude and the phase place of modulating input signal through the phase place of modulation I/Q channel signal.
Background technology
Vector modulator is a kind of amplitude of while control signal and the calibrator and employed device of amplifier of phase place of being used to.The common receiving inputted signal of vector modulator and export signal with quadrature (Q) channel signal with particular phases through signal being split as homophase (I) channel signal.For this reason, input signal is converted into I channel signal and the Q channel signal with 90 ° of phase differences, wherein exports i/q signal in response to external control signal, makes amplitude constant, and makes phase change.The signal of output by the variable amplitude attenuator according to predetermined attenuation rate decay and with its vector and output.
Yet; The vector modulator of prior art has formed the four-quadrant signal that comprises polar coordinate system; Use the variable amplitude attenuator to control each amplitude of each quadrant signal changeably, each amplitude of each quadrant signal is exported with being coupled to also with vector.In this case, the vector modulator of prior art must form with the variable amplitude attenuator unfriendly and make circuit arrangement complicated.
Another shortcoming is, has the trouble that each i/q signal is converted into the amplitude controlling value for the arbitrary phase angle that obtains to use the variable amplitude attenuator.Another shortcoming is to have the trouble that is experienced complex process with the phase angle of being exported by final vector in order to obtain.
Summary of the invention
A purpose of the present disclosure is integrally or partly to solve at least one or a plurality of the problems referred to above and/or shortcoming, and the benefit that provides hereinafter to describe at least.In order at least integrally or partly to realize above-mentioned purpose; And according to purposes of the present invention; As embody with wide in range description; A kind of vector modulator that comprises the phase shifter of the amplitude that is configured to control input signals and phase place is provided, and said vector modulator uses the phase shifter that does not have the variable amplitude attenuator.
In addition, a kind of vector modulator that comprises phase shifter is provided, said phase shifter is configured under the situation of the complex configurations of the vector modulator that does not have prior art accurately modulating input signal.
In a global schema of the present disclosure, provide a kind of service time delayer and the vector modulator of phase shifter, said modulator comprises: time delay device, it changes phase of input signals through input signal is delayed time; First coupler, it will change conversion of signals that phase place exports for having the I channel signal and the Q channel signal of 90 ° of phase differences each other through time delay device, and export these channel signals; First phase shifter, it changes in predetermined phase range from the phase place of the I channel signal of said first coupler output, and the I channel signal of output phase change; Second phase shifter, it changes in predetermined phase range from the phase place of the Q channel signal of said first coupler output, and the Q channel signal of output phase change; And second coupler, it will be respectively be coupled to together from the I/Q channel signal of the phase change of said first phase shifter and the output of second phase shifter, and the signal of output coupling.
Preferably, said time delay device changes phase place, keeps the amplitude of said input signal simultaneously.
Preferably, said time delay device changes said phase of input signals in the scope of 0 °～180 ° or 0 °～360 °.
Preferably, said first phase shifter and second phase shifter change I/Q channel signal phase place separately in 0 °～90 ° scope.
Preferably, said first phase shifter and second phase shifter change I/Q channel signal phase place separately, keep amplitude separately simultaneously.
Preferably, said second coupler will be with the vector and the signal of output respectively that is coupled.
Preferably, at least one in said first coupler and second coupler comprises 90 ° of hybrid couplers.
Beneficial effect
The vector modulator of delayer and phase shifter has following beneficial effect according to service time of the present disclosure: vector modulator delayer service time and the phase shifter that do not have a variable amplitude attenuator are with simplified system.
The vector modulator of delayer and phase shifter has another beneficial effect according to service time of the present invention: need not amplitude control and modulation signal simply.
The technical problem that the disclosure will solve is not restricted to above-mentioned description, and to those skilled in the art, from following description, can be expressly understood any other technical problem of not mentioning up to now.
Description of drawings
Fig. 1 is the schematic diagram that illustrates according to the vector modulator that comprises time delay device and phase shifter of an exemplary embodiment of the present disclosure.
Fig. 2 is the example that illustrates according to the polar plot of the computing of the vector modulator of an exemplary embodiment of the present disclosure.
Fig. 3 is the example that is illustrated in according to the polar plot in the phase variable district of the output signal in the vector modulator of an exemplary embodiment of the present disclosure.
Embodiment
Below describing will not be in order the present invention to be restricted to disclosed form here.Therefore, change and modification and following instruction are equal to, and the technology of association area and knowledge are all within the scope of the invention.The embodiments described herein has further been explained known realization mode of the present invention, and makes that others skilled in the art can be with these or other embodiment and through to certain applications of the present invention or use needed various change to use the present invention.
Through understanding disclosed embodiment and advantage thereof best with reference to Fig. 1-Fig. 3 in the accompanying drawing, identical mark is used for the identical and corresponding part of each figure of expression.For those of ordinary skill in the art, the accompanying drawing below investigating is during with detailed description, and other feature and advantage of disclosed embodiment will be conspicuously maybe will become obvious.Purpose is that all these supplementary features and advantage all are included in the scope of disclosed embodiment, and is protected by accompanying drawing.In addition, the accompanying drawing of elaboration only is exemplary, and is not to assert or hint for the relevant any restriction of environment, structure or the process that can be performed different embodiment.Correspondingly, the scheme of description is all such changes, modification and the variation that drops within scope of the present invention and the inventive aspects in order to comprise.
Be to be understood that; When in this specification, using; Term " comprises " or " comprising " specifically indicated the existence of characteristic, zone, integer, step, operation, element and/or the assembly of narration, but does not get rid of the existence or the interpolation of one or more further feature, zone, integer, step, operation, element, assembly and/or its groups here.That is, term " comprises ", " having ", " having " or their modification will describe in detail and/or claims in be used, represent that " to comprise " similar mode non exhaustive property comprises with term.
In addition, " exemplary " only means it is an example, rather than best.It is also understood that the purpose in order to simplify and to be convenient to understand, the characteristic of describing here, level and/or element are set forth with the specific dimensions and/or the location that are relative to each other, and actual size and/or location can with set forth those are roughly different.That is, in the accompanying drawings, level, zone and/or other size of component and relative size can be for clear and amplify or reduce.Identical numeral components identical in full, and the explanation that repeats each other will be omitted.
Now, will the present invention at length be described with reference to accompanying drawing.
Fig. 1 is the schematic diagram that illustrates according to the vector modulator that comprises time delay device and phase shifter of an exemplary embodiment of the present disclosure.
With reference to figure 1, comprise time delay device 110, first coupler 120, first phase shifter 130, second phase shifter 140 and second coupler 150 according to the vector modulator that comprises time delay device and phase shifter of an exemplary embodiment of the present disclosure.
Yet the variation in of the present disclosure exemplary embodiment is preferably within 0 °～180 °.Reason is that 0 °～180 ° phase change scope is enough to the signal of synthetic four quadrants.Be under 0 °～360 ° the situation, to have following advantage in the phase change scope: when with the phase change scope be 0 °～180 ° application when comparing, increase the maximum amplitude scope of resultant vector.
As stated; In the disclosure; Phase of input signals is changed in the predetermined phase range, be converted into the I/Q channel signal that has 90 ° of phase differences each other and exported, and the I/Q channel signal predetermined phase range be changed to respectively by translate phase and by coupling again; Thereby compare with the signal of initial input, the signal of coupling is modulated and by being exported on amplitude and phase place.
From preceding text, obviously can know; The time of utilization through delay input signal changes the time delay device of phase place and changes two phase shifters of the phase place of I/Q channel signal respectively, and amplitude that can be through modulating input signal and phase place produce new output signal and realize the vector modulator further simplified.
Fig. 2 is the example that illustrates according to the polar plot of the computing of the vector modulator of an exemplary embodiment of the present disclosure.
With reference to figure 2 (a); Be input under the situation in the time delay device 110 at the input signal S0 that will have any amplitude and phase place; Said input signal converts the signal S1 that phase change θ 1 has identical amplitude through time delay into by input signal S0, and output shown in Fig. 2 (b).At this moment, time delay device 110 phase retardations are to be suitable for the purposes of vector modulator.
For example, as stated, be used for the input signal that leakage signal removes, input signal carried out time delay so that have the phase place opposite phases with leakage signal in order to use, thus this phase place can with the leakage signal anti-phase.
Fig. 2 (b) has shown an example, in said example, supposes that leakage signal is positioned at third quadrant, makes the output signal S1 of phase change be positioned at first quartile to have the phase place opposite phases with leakage signal.
As stated, the output signal S1 of phase change is converted into the I channel signal I that has 90 ° of phase differences each other and Q channel signal Q and is exported, shown in Fig. 2 (c).
Then; Shown in Fig. 2 (d); First phase shifter 130 becomes predetermined phase I ' with the phase change of I channel signal I; And second phase shifter 140 becomes predetermined phase Q ' with the phase change of Q channel signal Q, and wherein the I/Q channel signal I ' of phase change, Q ' are coupled with vector with by second coupler 150, and export signal S2 after being output as amplitude/phase modulated.Input signal S0 is outputted as new output signal S2, and said new output signal S2 is modulated on amplitude and phase place through above-described process.
Fig. 3 is the example of polar plot in the phase change district of output signal in vector modulator that illustrates according to an exemplary embodiment of the present disclosure.
With reference to figure 3, according to the time delay device 110 of vector modulator of the present disclosure with the preset time delay input signal so that make phase change θ 1. First phase shifter 130 and 140 maintenances of second phase shifter have the amplitude of the I/Q channel signal of 90 ° of phase differences each other, and in 0 °～90 ° phase range, change phase place.
At this moment, as stated,, in 0 °～90 ° of phase range, change the phase place of the I channel signal 31 and the Q channel signal 32 of phase variable, can adjust the amplitude of coupled signal thus through first phase shifter 130 and second phase shifter 140.
I channel signal 31 and Q channel signal 32 by the situation of equal control under, the amplitude of signal can Be Controlled and need be in any change of the enterprising row of phase place axis.The control of each I/Q channel signal can change phase place in restricted portion.
As stated, because at first time delay device 110 changes phase place, and next first phase shifter 130 and second phase shifter, 140 change amplitudes, output signal finally synthetic and output is compared with input signal has adjusted shape on phase place and amplitude.
As shown in Figure 3, the disclosure can service time delayer and phase shifter change with respect to phase place as polar subregion of I/Q polar plot.
And phase shifter can change the amplitude of the resultant vector of I/Q channel signal to the change of the phase place of I/Q channel signal, this means that the amplitude and the phase place of output signal can be modulated with input signal with comparing.
As a result, only service time, delayer and phase shifter came modulation signal, with the configuration and the circuit of simplification vector modulator, and did not need a plurality of variable amplitude attenuators like the vector modulator of prior art.
The I/Q vector modulator is widely used in every field, such as measuring instrument, wireless set and amplifier.Vector modulator output is as the input signal of i/q signal, control phase only in the time of the amplitude of as original ground maintenance i/q signal, and the amplitude of control input signals and phase place.Recently, the problem that reduces along with the high-performance of these electronic products, simplification and cost becomes focus, and the module and the parts that are used for these electronic products are shown great attention to.
Consider this aspect; The vector modulator of delayer and phase shifter has following benefit according to service time of the present disclosure: because do not need the variable amplitude attenuator of prior art; But adopt time delay device and phase shifter to construct the I/Q vector modulator, thereby can simplify and be configured to reduce manufacturing cost.Therefore, should show knowledge, the vector modulator of delayer and phase shifter can serviceably be applied to use the various industrial circles of I/Q vector modulator according to service time of the present disclosure.
Although embodiment is illustrated, should be understood that those skilled in the art can design spirit and interior many other modifications and the embodiment of scope that drops on principle of the present invention with reference to a plurality of exemplary embodiments.More particularly, in the scope of open, accompanying drawing and additional claim, can carry out various changes and modification to the setting of component parts and/or subject combination setting.Except in component parts and/or the change that is provided with and revise, being equal to alternative use also is conspicuous to those skilled in the art.
Claims (7)
- One kind service time delayer and the vector modulator of phase shifter, said modulator is characterised in that: time delay device (110), it changes said phase of input signals through input signal is carried out time delay; First coupler (120), it will be to have the I channel signal and the Q channel signal of 90 ° of phase differences each other through the conversion of signals that said time delay change phase place is exported, and export said I channel signal and said Q channel signal; First phase shifter (130), it changes in the predetermined phase scope from the said I channel signal of said first coupler output, and the I channel signal of output phase change; Second phase shifter (140), it changes in the predetermined phase scope from the said Q channel signal of said first coupler output, and the Q channel signal of output phase change; And second coupler (150), it will be from the I/Q channel signal coupling of the phase change of said first phase shifter (130) and second phase shifter (140) output, and the signal of output coupling.
- 2. vector modulator according to claim 1 is characterized in that, said time delay device (110) changes said phase place in the amplitude that keeps said input signal.
- 3. vector modulator according to claim 2 is characterized in that, said time delay device (110) changes the said phase place of said input signal in the scope of 0 °～180 ° or 0 °～360 °.
- 4. vector modulator according to claim 1 is characterized in that, said first phase shifter (130) and second phase shifter (140) change I/Q channel signal phase place separately in 0 °～90 ° scope.
- 5. vector modulator according to claim 4 is characterized in that, said first phase shifter (130) and second phase shifter (140) change I/Q channel signal phase place separately in the amplitude that keeps separately.
- 6. vector modulator according to claim 1 is characterized in that, said second coupler (150) is with the signal of vector with the coupling phase change.
- 7. vector modulator according to claim 1 is characterized in that, at least one in said first coupler (120) and second coupler (150) comprises 90 ° of hybrid couplers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011100704237A CN102684611A (en) | 2011-03-16 | 2011-03-16 | Vector modulator using time delayer and phase shifters |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100704237A CN102684611A (en) | 2011-03-16 | 2011-03-16 | Vector modulator using time delayer and phase shifters |
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| CN2011100704237A Pending CN102684611A (en) | 2011-03-16 | 2011-03-16 | Vector modulator using time delayer and phase shifters |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532197A (en) * | 2016-11-13 | 2017-03-22 | 中国科学院近代物理研究所 | Wideband digital adjustable phase shifter for accelerator random cooling system |
| CN110398717A (en) * | 2019-06-21 | 2019-11-01 | 电子科技大学 | Strong noise signal suppressing method and system based on step frequency Through-Wall Radar System |
| US11201397B2 (en) | 2018-03-08 | 2021-12-14 | Nippon Telegraph And Telephone Corporation | Circuit and wireless device |
| CN116488983A (en) * | 2023-04-25 | 2023-07-25 | 西安博瑞集信电子科技有限公司 | I-Q vector modulator and radio frequency signal modulation method applied by same |
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| EP0987560A1 (en) * | 1995-07-07 | 2000-03-22 | THE SECRETARY OF STATE FOR DEFENCE in Her Britannic Majesty's Gvmnt. of the United Kingdom of Great Britain & Northern Ireland | Circuit module for a phased array radar |
| CN1467919A (en) * | 2002-06-13 | 2004-01-14 | 松下电器产业株式会社 | Transmitting circuit device and wireless communications device |
| US20040047431A1 (en) * | 2002-09-05 | 2004-03-11 | Francois Baron | Process and device for modulating a carrier with amplitude and phase error compensation |
| US6853691B1 (en) * | 1998-12-11 | 2005-02-08 | Lg Information & Communications, Ltd. | Vector modulator using amplitude invariant phase shifter |
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2011
- 2011-03-16 CN CN2011100704237A patent/CN102684611A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0987560A1 (en) * | 1995-07-07 | 2000-03-22 | THE SECRETARY OF STATE FOR DEFENCE in Her Britannic Majesty's Gvmnt. of the United Kingdom of Great Britain & Northern Ireland | Circuit module for a phased array radar |
| US6853691B1 (en) * | 1998-12-11 | 2005-02-08 | Lg Information & Communications, Ltd. | Vector modulator using amplitude invariant phase shifter |
| CN1467919A (en) * | 2002-06-13 | 2004-01-14 | 松下电器产业株式会社 | Transmitting circuit device and wireless communications device |
| US20040047431A1 (en) * | 2002-09-05 | 2004-03-11 | Francois Baron | Process and device for modulating a carrier with amplitude and phase error compensation |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532197A (en) * | 2016-11-13 | 2017-03-22 | 中国科学院近代物理研究所 | Wideband digital adjustable phase shifter for accelerator random cooling system |
| CN106532197B (en) * | 2016-11-13 | 2021-09-17 | 中国科学院近代物理研究所 | Broadband digital adjustable phase shifter for accelerator random cooling system |
| US11201397B2 (en) | 2018-03-08 | 2021-12-14 | Nippon Telegraph And Telephone Corporation | Circuit and wireless device |
| CN110398717A (en) * | 2019-06-21 | 2019-11-01 | 电子科技大学 | Strong noise signal suppressing method and system based on step frequency Through-Wall Radar System |
| CN110398717B (en) * | 2019-06-21 | 2021-06-11 | 电子科技大学 | Strong clutter signal suppression method and system based on step frequency through-wall radar system |
| CN116488983A (en) * | 2023-04-25 | 2023-07-25 | 西安博瑞集信电子科技有限公司 | I-Q vector modulator and radio frequency signal modulation method applied by same |
| CN116488983B (en) * | 2023-04-25 | 2024-07-16 | 博瑞集信(西安)电子科技股份有限公司 | I-Q vector modulator and radio frequency signal modulation method applied by same |
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Application publication date: 20120919 |