CN206100044U

CN206100044U - Vector modulator

Info

Publication number: CN206100044U
Application number: CN201621032303.2U
Authority: CN
Inventors: 李大光; 顾汉清
Original assignee: JIAKE ELECTRONICS CO Ltd ZHEJIANG
Current assignee: JIAKE ELECTRONICS CO Ltd ZHEJIANG
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-04-12
Anticipated expiration: 2026-08-31

Abstract

The utility model provides a vector modulator, including first vector modulating device and the phase place adjusting device continuous with first vector modulating device, be equipped with the input on the first vector modulating device, be equipped with the output on the phase place adjusting device, still be equipped with the phase shift control port on the phase place adjusting device, phase place adjusting device is used for when required accent integral point drops on the adjustment blind area of first vector modulating device, shifts out the adjustment blind area with the actual accent integral point of first vector modulating device, phase place adjusting device's the looks scope of moving be 0 with be not less than 25. When getting into the adjustment blind area of first vector modulating device like this, follow the adjustment blind area through phase shift control port control phase place adjusting device with the setting of first vector modulating device and put aside, realize adjusting getting rid of of blind area mutually to the width of cloth to the realization is phase place and amplitude adjustment to incoming signal in all regions of orthogonal coordinates system.

Description

Vector modulator

Technical field

This utility model is related to information technology and radio frequency arts, in particular, is related to a kind of vector modulator.

Background technology

Vector modulator has very important effect in the fields such as current mobile communication, data transfer, radar, especially It is, in application scenarios such as interference offset device, Linear Power Amplifiers, to need to be realized to radio frequency signal amplitude and phase place using vector modulator Accurate adjustment required with reaching the signal cancellation specified, as shown in Figure 1.Width to realize these requirements, to vector modulator Degree and phase adjustment precision propose very high requirement.During actually used, be present adjustment blind area in vector modulator, such as exist 0 °, near the specific phases such as 90 °, amplitude Adjustment precision is very low, have impact on and normally uses, as shown in Figure 2.Although can be by increasing The amplitude fading adjusting range of big attenuator can not be completely eliminated all the time the presence of blind area reducing blind area.

Therefore, how to provide a kind of vector modulator for mutually adjusting blind area without width becomes the problem of this area urgent need to resolve.

Utility model content

This utility model is solution drawbacks described above, there is provided a kind of circuit topology form, after general vector manipulator Series phase adjusting apparatus, increase a control interface, and the width for eliminating vector modulator mutually adjusts blind area, improves Vector Modulation The performance of device.

The purpose of this utility model is achieved through the following technical solutions：

A kind of vector modulator, including the first Vector Modulation device and the phase adjustment that is connected with the first Vector Modulation device Device, the first Vector Modulation device is provided with input, and the phase adjusting apparatus are provided with outfan, and the phase place is adjusted Phase shifting control port is additionally provided with engagement positions, the phase adjusting apparatus are used for when required adjustment point falls in the first Vector Modulation dress During the adjustment blind area put, the actual adjustment point of the first Vector Modulation device is removed into adjustment blind area, the phase adjusting apparatus Phase shift range is for 0 ° and not less than 25 °.

Preferably, the phase shift angle of the phase adjusting apparatus is 0 ° and 25 °.Phase adjusting apparatus can so be allowed to the greatest extent The requirement of phase adjustment can be met in the case of amount simplicity, the requirement of phase adjusting apparatus is reduced, so as to reduce phase adjustment The cost of device.

Preferably, the phase shift range of the phase adjusting apparatus is for 0 ° and not less than 45 °.Phase adjustment can so be reduced The requirement of device, so as to reduce the cost of phase adjusting apparatus.

Preferably, the phase shift angle of the phase adjusting apparatus is 0 ° and 45 °.Phase adjusting apparatus can so be allowed to the greatest extent The requirement of phase adjustment can be met in the case of amount simplicity, the requirement of phase adjusting apparatus is reduced, so as to reduce phase adjustment The cost of device.

Preferably, the phase adjusting apparatus include the first radio-frequency (RF) switch and the second radio-frequency (RF) switch, and first radio frequency is opened Close and the second radio-frequency (RF) switch between and be provided with the first delay line and the connection of the second delay line, first delay line and the second delay line Between electrical length difference be vector modulator using frequency range center frequency wavelength 1/6～1/12.For applying frequency model The vector modulator less than an octave is enclosed, can be adopted and be entered horizontal phasing control in this way, it is convenient and swift.

Preferably, N+1 delay lines (N >=2) are additionally provided between first radio-frequency (RF) switch and the second radio-frequency (RF) switch, it is described The difference of the electrical length of N+1 delay lines and the first delay line be vector modulator using frequency range center frequency wavelength 1/6～ 1/12.So for applying frequency scope is more than the vector modulator of an octave, can adopt and enter line phase in this way Adjustment, accurately and reliably.

Preferably, the phase adjusting apparatus include the first radio-frequency (RF) switch and the second radio-frequency (RF) switch, and first radio frequency is opened Close and the second radio-frequency (RF) switch between and be provided with the first phase-shift network circuit and the connection of the second phase-shift network circuit, the first phase shift net The phase shift angle difference of network circuit and the second phase-shift network circuit is between 30 °～60 °.For applying frequency scope is less than one The vector modulator of individual octave, can adopt and enter horizontal phasing control in this way, convenient and swift.

Preferably, be additionally provided between first radio-frequency (RF) switch and the second radio-frequency (RF) switch N+1 phase-shift network circuits (N >= 2), the phase shift angle difference of the N+1 phase-shift networks circuit and the first phase-shift network circuit is between 30 °～60 °.It is so right In applying frequency scope more than the vector modulator of an octave, can adopt and enter horizontal phasing control in this way, accurately may be used Lean on.

Preferably, I roads control port and the control port of Q roads second are additionally provided with the first Vector Modulation device.So Just two kinds of carrier signals can be input into by I roads control port and the control port of Q roads second.

Compared to existing technology, this utility model has advantages below：A kind of vector modulator of the present utility model is due to bag The phase adjusting apparatus for including the first Vector Modulation device and being connected with the first Vector Modulation device, set on the first Vector Modulation device There is input, phase adjusting apparatus are provided with outfan, and phase shifting control port is additionally provided with phase adjusting apparatus.So signal from Input is input into, and through the first Vector Modulation device and phase adjusting apparatus, realizes the adjustment of amplitude and phase place.When only relying on One Vector Modulation device adjust, into the first Vector Modulation device adjustment blind area when, by phase shifting control port controlling phase place Adjusting apparatus remove the adjustment amount of the first Vector Modulation device from adjustment blind area, and realization mutually adjusts the removal of blind area to width, from And realize adjusting the phase and amplitude of input signal in all regions of orthogonal coordinate system, eliminate width and mutually adjust blind area, so as to A kind of vector modulator that blind area is mutually adjusted without width is provided.In addition, the phase shift range of phase adjusting apparatus is in this utility model 0 ° and not less than 25 ° because for the first Vector Modulation device, its width mutually adjust blind area be generally 0 ° ± 10 °, 90 ° ± 10 °, 180 ° ± 10 ° and 270 ° ± 10 ° of scope, as long as so the phase adjusting apparatus for being used are with more than 25 ° of phase shift ability, Width can be eliminated and mutually adjust blind area, so as to reach the purpose that width mutually adjusts blind area is eliminated.

Description of the drawings

Fig. 1 is Vector Modulation schematic diagram；

Fig. 2 is that vector modulator width mutually adjusts blind area schematic diagram；

Fig. 3 is the schematic diagram of the vector modulator of this utility model embodiment；

Fig. 4 is the schematic diagram of the phase adjusting apparatus of the single octave based on delay line of this utility model embodiment；

Fig. 5 is the schematic diagram of the phase adjusting apparatus of the multi-octave based on delay line of this utility model embodiment；

Fig. 6 is the signal of the phase adjusting apparatus of the single octave based on phase-shift network circuit of this utility model embodiment Figure；

Fig. 7 is the signal of the phase adjusting apparatus of the multi-octave based on phase-shift network circuit of this utility model embodiment Figure.

Wherein：10- the first Vector Modulation devices, 20- phase adjusting apparatus, the radio-frequency (RF) switch of 21- first, the radio frequencies of 22- second Switch, the delay lines of 23- first, the delay lines of 24- second, 25- N+1 delay lines, 30- inputs, 31-I roads control port, 32-Q The control port of road second, 33- the first phase-shift network circuits, 34- the second phase-shift network circuits, 35- N+1 phase-shift network circuits, 40- outfans, 41- phase shifting controls port.

Specific embodiment

In description of the present utility model, it is to be understood that term " " center ", " horizontal ", " on ", D score, " left side ", The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is based on shown in the drawings Orientation or position relationship, are for only for ease of description this utility model and simplify description, rather than indicate or imply the dress of indication Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this utility model Restriction.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.In description of the present utility model, unless otherwise stated, the implication of " multiple " It is two or more.In addition, term " including " and its any deformation, it is intended that cover non-exclusive including.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in this utility model.

Below in conjunction with the accompanying drawings the utility model is described in further detail with preferred embodiment.

As shown in Fig. 3 to Fig. 7, a kind of vector modulator disclosed in the present embodiment, including the He of the first Vector Modulation device 10 The phase adjusting apparatus 20 being connected with the first Vector Modulation device 10, the first Vector Modulation device 10 is provided with input 30, the phase adjusting apparatus 20 are provided with outfan 40, and phase shifting control port 41 is additionally provided with the phase adjusting apparatus 20, The phase adjusting apparatus 20 are used for when required adjustment point falls in the adjustment blind area of the first Vector Modulation device 10, by the first arrow The actual adjustment point of amount modulating device 10 removes adjustment blind area, and the phase shift range of the phase adjusting apparatus 20 is 0 ° and is not less than 25°。

A kind of vector modulator of the present utility model due to including the first Vector Modulation device 10 and with the first Vector Modulation The connected phase adjusting apparatus 20 of device 10, the first Vector Modulation device 10 is provided with input 30, on phase adjusting apparatus 20 Outfan 40 is provided with, phase shifting control port 41 is additionally provided with phase adjusting apparatus 20.So signal is input into from input 30, passes through First Vector Modulation device 10 and phase adjusting apparatus 20, realize the adjustment of amplitude and phase place.When only relying on the first Vector Modulation Device 10 is adjusted, into the first Vector Modulation device 10 adjustment blind area when, by phase shifting control port 41 control phase adjustment Device 20 removes the adjustment amount of the first Vector Modulation device 10 from adjustment blind area, and realization mutually adjusts the removal of blind area to width, from And realize adjusting the phase and amplitude of input signal in all regions of orthogonal coordinate system, eliminate width and mutually adjust blind area, so as to A kind of vector modulator that blind area is mutually adjusted without width is provided.In addition, in this utility model phase adjusting apparatus 20 phase shift range For 0 ° and not less than 25 ° because for the first Vector Modulation device 10, its width mutually adjust blind area be generally 0 ° ± 10 °, 90 ° ± 10 °, 180 ° ± 10 ° and 270 ° ± 10 ° of scope, as long as so the phase adjusting apparatus 20 for being used are with more than 25 ° of shifting Phase ability, you can eliminate width and mutually adjust blind area, so as to reach the purpose that width mutually adjusts blind area is eliminated.

I roads control port 31 and the second control port of Q roads 32 are additionally provided with first Vector Modulation device 10.Thus can be with Two kinds of carrier signals, I carrier signals and Q carrier signals are input into by I roads control port 31 and the second control port of Q roads 32.

The phase shift angle of phase adjusting apparatus 20 is 0 ° and 25 °.Phase adjusting apparatus 20 can so be allowed in simplicity as far as possible In the case of can meet the requirement of phase adjustment, the requirement of phase adjusting apparatus 20 is reduced, so as to reduce phase adjusting apparatus Cost.

The phase shift range of phase adjusting apparatus 20 is for 0 ° and not less than 45 °.To realize that this utility model has preferable effect, Usually, it is desirable to which phase adjusting apparatus 20 have more than 45 ° of phase adjustment ability, and can so reduce phase adjustment dress The requirement put, so as to reduce the cost of phase adjusting apparatus.Phase adjusting apparatus can use analog phase shifter, digital phase shift Device, phase shift range is not less than 25 °, and 45 ° are capable of achieving more preferable effect.

The phase shift angle of phase adjusting apparatus 20 is 0 ° and 45 °.Phase adjusting apparatus 20 can so be allowed in simplicity as far as possible In the case of can meet the requirement of phase adjustment, the requirement of phase adjusting apparatus 20 is reduced, so as to reduce phase adjusting apparatus Cost.

With reference to shown in Fig. 4, phase adjusting apparatus 20 include the first radio-frequency (RF) switch 21 and the second radio-frequency (RF) switch 22, described first The first delay line 23 is provided between the radio-frequency (RF) switch 22 of radio-frequency (RF) switch 21 and second and the second delay line 24 connects, described first postpones The difference of the electrical length between the delay line 24 of line 23 and second is vector modulator using the 1/6～1/ of frequency range center frequency wavelength 12.For applying frequency scope is less than the vector modulator of an octave (such as 100MHz-200MHz), can adopt this Mode enters horizontal phasing control, is switched by the switch at two ends, realizes the switching of out of phase, is computed, and is capable of achieving each frequency Rate point removes the function of blind area, convenient and swift.Phase shifting control port 41 connects the first radio-frequency (RF) switch 21, also connects the second radio frequency and opens 22 are closed, phase shifting control port 41 is input into respectively to the first radio-frequency (RF) switch 21 and the second radio-frequency (RF) switch 22.

With reference to shown in Fig. 5, for the individual octaves of N (N >=2), N+1 bar delay lines are needed, so the He of the first radio-frequency (RF) switch 21 N+1 delay lines 25 (N >=2) are additionally provided between second radio-frequency (RF) switch 22, the N+1 delay lines 25 (N >=2) postpone with first The difference of the electrical length of line 23 is vector modulator using the 1/6～1/12 of frequency range center frequency wavelength.So for application frequency Rate scope can be adopted this more than the vector modulator of an octave (such as 100MHz-400MHz is 2 octaves) Mode enters horizontal phasing control, accurately and reliably.

With reference to shown in Fig. 6, phase adjusting apparatus 20 include the first radio-frequency (RF) switch 21 and the second radio-frequency (RF) switch 22, described first The first phase-shift network circuit 33 is provided between the radio-frequency (RF) switch 22 of radio-frequency (RF) switch 21 and second and the second phase-shift network circuit 34 connects, The phase shift angle difference of the first phase-shift network circuit 33 and the second phase-shift network circuit 34 is between 30 °～60 °.For should With frequency range less than the vector modulator of an octave, can adopt and enter horizontal phasing control in this way, by two ends Switch switching, realize the switching of out of phase, be computed, be capable of achieving the function that each Frequency point is removed blind area, it is convenient fast It is prompt.Phase shifting control port 41 connects the first radio-frequency (RF) switch 21, also connects the second radio-frequency (RF) switch 22, phase shifting control port 41 respectively to First radio-frequency (RF) switch 21 and the second radio-frequency (RF) switch input 22.

With reference to shown in Fig. 7, for the individual octaves of N (N >=2), N+1 group phase-shift network circuits are needed, so the first radio frequency is opened N+1 phase-shift networks circuit 35 (N >=2), the N+1 phase-shift network circuits are additionally provided between the radio-frequency (RF) switch 22 of pass 21 and second The phase shift angle difference of 35 (N >=2) and the first phase-shift network circuit 33 is between 30 °～60 °.So for applying frequency scope More than the vector modulator of an octave (such as 100MHz-400MHz is 2 octaves), can adopt to enter in this way Horizontal phasing control, accurately and reliably.

Above content is to combine specific preferred implementation further detailed description of the utility model, it is impossible to Identification is of the present utility model to be embodied as being confined to these explanations.For the ordinary skill of this utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be regarded To belong to protection domain of the present utility model.

Claims

1. a kind of vector modulator, it is characterised in that be connected including the first Vector Modulation device and with the first Vector Modulation device Phase adjusting apparatus, the first Vector Modulation device is provided with input, and the phase adjusting apparatus are provided with outfan, Phase shifting control port is additionally provided with the phase adjusting apparatus, the phase adjusting apparatus are used for when required adjustment point falls first During the adjustment blind area of Vector Modulation device, the actual adjustment point of the first Vector Modulation device is removed into adjustment blind area, the phase place The phase shift range of adjusting apparatus is for 0 ° and not less than 25 °.

2. vector modulator according to claim 1, it is characterised in that the phase shift angle of the phase adjusting apparatus is 0 ° With 25 °.

3. vector modulator according to claim 1, it is characterised in that the phase shift range of the phase adjusting apparatus is 0 ° With not less than 45 °.

4. a kind of vector modulator according to claim 3, it is characterised in that the phase shift angle of the phase adjusting apparatus For 0 ° and 45 °.

5. vector modulator according to claim 1, it is characterised in that the phase adjusting apparatus are opened including the first radio frequency Close and the second radio-frequency (RF) switch, the first delay line and the second delay line are provided between first radio-frequency (RF) switch and the second radio-frequency (RF) switch Connection, the difference of the electrical length between first delay line and the second delay line is that vector modulator uses frequency range mid frequency The 1/6～1/12 of wavelength.

6. vector modulator according to claim 5, it is characterised in that first radio-frequency (RF) switch and the second radio-frequency (RF) switch Between be additionally provided with N+1 delay lines, wherein N >=2, the N+1 delay lines and the first delay line electrical length difference for arrow Amount manipulator is using the 1/6～1/12 of frequency range center frequency wavelength.

7. vector modulator according to claim 1, it is characterised in that the phase adjusting apparatus are opened including the first radio frequency Close and the second radio-frequency (RF) switch, the first phase-shift network circuit and second are provided between first radio-frequency (RF) switch and the second radio-frequency (RF) switch Phase-shift network circuit connects, the phase shift angle difference of the first phase-shift network circuit and the second phase-shift network circuit 30 °～ Between 60 °.

8. vector modulator according to claim 7, it is characterised in that first radio-frequency (RF) switch and the second radio-frequency (RF) switch Between be additionally provided with N+1 phase-shift network circuits, wherein N >=2, the N+1 phase-shift networks circuit and the first phase-shift network circuit Phase shift angle difference between 30 °～60 °.

9. vector modulator according to claim 1, it is characterised in that be additionally provided with I on the first Vector Modulation device Road control port and the control port of Q roads second.