CN105959243A - Modulator - Google Patents
Modulator Download PDFInfo
- Publication number
- CN105959243A CN105959243A CN201610258652.4A CN201610258652A CN105959243A CN 105959243 A CN105959243 A CN 105959243A CN 201610258652 A CN201610258652 A CN 201610258652A CN 105959243 A CN105959243 A CN 105959243A
- Authority
- CN
- China
- Prior art keywords
- signal
- frequency
- port
- switch
- radio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The embodiment of the invention discloses a modulator comprising a first radio frequency switch, a second radio frequency switch, and six microwave ports. The first radio frequency switch is used for receiving an I signal in a baseband signal, controlling the on-off state of the first radio frequency switch, and changing the first reflection coefficient of a local oscillation signal. The second radio frequency switch is used for receiving a Q signal in the baseband signal, controlling the on-off state of the second radio frequency switch, and changing the second reflection coefficient of the local oscillation signal. The six microwave ports are used for modulating the local oscillation signal. It can be seen that the six microwave ports may achieve direct up-conversion of the baseband signal, that the radio frequency switches achieve impedance control and signal modulation with high carrier frequency and high bandwidth, and that the combination of the six microwave ports and the radio frequency switches achieves the functions of the modulator. Since the six microwave ports and the radio frequency switches are low in price and the six microwave ports are complete passive and low in power consumption, the cost of devices for modulating signals is decreased and power consumption in modulation is reduced.
Description
Technical field
The present invention relates to wireless communication technology field, particularly to a kind of manipulator.
Background technology
In the radio communication, utilize electromagnetic wave as the carrier of information.Information is usually baseband signal, its
Feature is that frequency is relatively low, frequency band is wider and overlapped.In order to be suitable for single channel transmission, it is necessary to adjust
System.So-called modulation, it is simply that the process that baseband signal is loaded on high-frequency oscillation signal, by the case of,
Baseband signal now is also referred to as signal to be modulated, its essence is and baseband signal is moved on high frequency carrier
Go, namely the process of frequency spectrum shift.So the purpose of signal modulation, it is simply that analogue signal to be transmitted
Or digital signal conversion becomes to be suitable for the high-frequency signal of transmission.
At present, baseband signal is modulated, mainly uses the device such as frequency mixer, converter.Frequency mixer
Being mainly used in being mixed input signal, output signal frequency is equal to frequency input signal sum, difference or is
Both other combinations.Converter is mainly used in baseband signal and upconverts to rf frequency.
But, the device price such as frequency mixer, converter costly, relatively costly, and power consumption is bigger.
Summary of the invention
The purpose of the embodiment of the present invention there are provided a kind of manipulator, to reduce, signal is modulated institute's use device
The cost of part and the power consumption of reduction modulation.
For reaching above-mentioned purpose, embodiments providing a kind of manipulator, described manipulator includes: the
One radio-frequency (RF) switch, the second radio-frequency (RF) switch and six-port microwave, wherein,
Described first radio-frequency (RF) switch, for receiving the I signal in baseband signal, utilizes described I signal to control described
The break-make of the first radio-frequency (RF) switch, changes the first reflection coefficient of local oscillation signal；
Described second radio-frequency (RF) switch, for receiving the Q signal in described baseband signal, utilizes described Q signal control
Make the break-make of described second radio-frequency (RF) switch, change the second reflection coefficient of described local oscillation signal；
Described six-port microwave, is used for utilizing described first reflection coefficient and described second reflection coefficient, to institute
State local oscillation signal to be modulated, wherein,
The first port in described six-port microwave, is used for receiving described local oscillation signal；
The second port in described six-port microwave, the local oscillation signal after launching modulation；
The third and fourth port ground connection in described six-port microwave；
Fifth port in described six-port microwave is connected with described first radio-frequency (RF) switch；
The 6th port in described six-port microwave is connected with described second radio-frequency (RF) switch.
It is also preferred that the left described baseband signal can be:
Microwave-based band signal or light carry baseband signal.
It is also preferred that the left when described baseband signal is light load baseband signal, described manipulator also includes that the first light connects
Receipts device and the second optical receiver:
Described first optical receiver is connected with described first radio-frequency (RF) switch, is used for receiving described light and carries baseband signal
In I signal, and the I signal that described light carries in baseband signal is forwarded to described first radio-frequency (RF) switch；
Described second optical receiver is connected with described second radio-frequency (RF) switch, is used for receiving described light and carries baseband signal
In Q signal, and the Q signal that described light carries in baseband signal is forwarded to described second radio-frequency (RF) switch.
It is also preferred that the left described first optical receiver and described second optical receiver can be:
The optical receiver being made up of photodiode and trans-impedance amplifier.
It is also preferred that the left described manipulator also includes first annular device and the second circulator:
Fifth port in described first annular device, with described first radio-frequency (RF) switch and described six-port microwave is even
Connect, be used for coordinating described first radio-frequency (RF) switch, change described first reflection coefficient；
The 6th port in described second circulator, with described second radio-frequency (RF) switch and described six-port microwave is even
Connect, be used for coordinating described second radio-frequency (RF) switch, change described second reflection coefficient.
It is also preferred that the left described six-port microwave is:
The six-port microwave being made up of a power splitter and three bonders.
As seen from the above technical solutions, embodiments provide a kind of manipulator, including: first penetrates
Frequency switch, the second radio-frequency (RF) switch and six-port microwave, wherein, described first radio-frequency (RF) switch, it is used for receiving base
I signal in band signal, utilizes described I signal to control the break-make of described first radio-frequency (RF) switch, changes local oscillation signal
The first reflection coefficient；Described second radio-frequency (RF) switch, for receiving the Q signal in described baseband signal, utilizes
Described Q signal controls the break-make of described second radio-frequency (RF) switch, changes the second reflection coefficient of described local oscillation signal；
Described six-port microwave, is used for utilizing described first reflection coefficient and described second reflection coefficient, to described
The signal that shakes is modulated, wherein, the first port in described six-port microwave, it is used for receiving described local oscillator letter
Number；The second port in described six-port microwave, the local oscillation signal after launching modulation；Described microwave six
The third and fourth port ground connection in port；Fifth port in described six-port microwave and described first radio frequency
Switch is connected；The 6th port in described six-port microwave is connected with described second radio-frequency (RF) switch.Visible, this
Scheme uses six-port microwave can realize the direct up conversion of baseband signal, and six-port microwave is complete
Passive, use radio-frequency (RF) switch can realize impedance control, it is achieved high carrier frequency, the signal modulation of high bandwidth, micro-
Ripple six port and radio-frequency (RF) switch are implemented in combination in the function of manipulator, because six-port microwave and radio frequency are opened
Closing low price, and six-port microwave is completely passive, and power consumption is little, so by six-port microwave with penetrate
The manipulator of frequency switch composition decreases the cost to signal the used device of modulation and reduces the merit of modulation simultaneously
Rate consumes.
Certainly, arbitrary product or the method for implementing the present invention must be not necessarily required to reach above-described institute simultaneously
There is advantage.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of manipulator that Fig. 1 provides for the embodiment of the present invention；
The structural representation of the another kind of manipulator that Fig. 2 provides for the embodiment of the present invention；
The structural representation of the another kind of manipulator that Fig. 3 provides for the embodiment of the present invention；
The structural representation of the another kind of manipulator that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
In order to solve problems of the prior art, the embodiment of the invention discloses a kind of manipulator, below
By specific embodiment, the present invention is described in detail.
The structural representation of a kind of manipulator that Fig. 1 provides for the embodiment of the present invention, may include that first penetrates
Frequency switch the 101, second radio-frequency (RF) switch 102, six-port microwave 103.
Wherein, the first radio-frequency (RF) switch 101, for receiving the I signal in baseband signal, utilize this I signal control
Make the break-make of the first radio-frequency (RF) switch 101, change the first reflection coefficient of local oscillation signal.
First baseband signal is introduced explanation: baseband signal is to be sent by information source (also referred to as transmitting terminal)
Not through the raw electrical signal of ovennodulation (carrying out frequency spectrum shift and conversion), be characterized in that frequency is relatively low,
Signal spectrum, from the beginning of near zero-frequency, has low-pass form.
Then radio-frequency (RF) switch is introduced explanation: radio-frequency (RF) switch belongs to fiber optic communication or broadband communications field letter
Number switch, for wire transmission radiofrequency signal by controlling, be to be imitated by shell and gallium arsenic metal semiconductor field
Answering input that transistor and auxiliary circuit be connected, export and control end and constitute, field-effect transistor is series to be penetrated
Frequently path, is controlled by control signal, has simple in construction, and range is wide, low cost, and power consumption is low,
Being easily installed, high reliability, can be widely used for carrier telephone switching, cable TV signal switches,
The fields such as fiber optic communication switching.
Concrete, in embodiments of the present invention, baseband signal can be microwave-based band signal.
Concrete, in embodiments of the present invention, the first radio-frequency (RF) switch 101 and the in six-port microwave 103
Five ports are connected, and for receiving the I signal in baseband signal, utilize I signal to control the first radio-frequency (RF) switch
The break-make of 101, the load of the fifth port in change six-port microwave 103, and then change local oscillation signal
First reflection coefficient.
Second radio-frequency (RF) switch 102, for receiving the Q signal in baseband signal, utilizes this Q signal to control the
The break-make of two radio-frequency (RF) switch 102, changes the second reflection coefficient of local oscillation signal.
Concrete, in embodiments of the present invention, the second radio-frequency (RF) switch 102 and the in six-port microwave 103
Six ports are connected, and for receiving the Q signal in baseband signal, utilize Q signal to control the second radio frequency and open
Close the break-make of 102, the load of the 6th port in change six-port microwave 103, and then change local oscillation signal
The second reflection coefficient.
Six-port microwave 103, is used for utilizing the first reflection coefficient and the second reflection coefficient, to described local oscillation signal
It is modulated, wherein,
The first port in six-port microwave 103, is used for receiving local oscillation signal；
The second port in six-port microwave 103, the local oscillation signal after launching modulation；
The third and fourth port ground connection in six-port microwave 103；
Fifth port in six-port microwave 103 is connected with the first radio-frequency (RF) switch 101；
The 6th port and the second radio frequency 102 switch in six-port microwave 103 are connected.
Concrete, six-port microwave 103 can be the microwave six being made up of a power splitter and three bonders
Port.
In actual applications, a typical six-port microwave is by a power splitter and three 90 degree of bonder groups
Becoming, the first port in six-port microwave, be used for receiving local oscillation signal, local oscillation signal is through microwave six end
Different phase changes can be experienced the when of mouth structure, the third and fourth port ground connection in six-port microwave,
Fifth port in six-port microwave is connected with the first radio-frequency (RF) switch, the 6th port in six-port microwave and
Two radio-frequency (RF) switch be connected, local oscillation signal arrive third and fourth, five, six ports when, due to each end
The load of mouth is different, and local oscillation signal has different reflections, and the signal after final reflection is convergeed to by power splitter
The second port in six-port microwave, the local oscillation signal after modulation can be launched by the second port.
Overall flow process can be stated with formula:
Wherein, a is local oscillation signal, and b is the local oscillation signal after modulation, ГIIt is the first reflection coefficient, ГQIt is
Two reflection coefficient, j represents the first reflectioncoefficientгIWith the second reflectioncoefficientгQOrthogonal.
First reflectioncoefficientгII signal according to baseband signal changes, the second reflectioncoefficientгQBelieve according to base band
Number Q signal change.
Visible, this programme use six-port microwave can realize the direct up conversion of baseband signal, and micro-
Ripple six port is completely passive, uses radio-frequency (RF) switch can realize impedance control, it is achieved high carrier frequency, high bandwidth
Signal is modulated, and six-port microwave and radio-frequency (RF) switch are implemented in combination in the function of manipulator, because microwave six
Port and radio-frequency (RF) switch low price, and six-port microwave is completely passive, and power consumption is little, so by micro-
The manipulator of ripple six port and radio-frequency (RF) switch composition decreases the cost to signal the used device of modulation and drops simultaneously
The power consumption of low modulation.
The structural representation of the another kind of manipulator that Fig. 2 provides for the embodiment of the present invention, may include that first
Optical receiver the 201, second optical receiver the 202, first radio-frequency (RF) switch the 101, second radio-frequency (RF) switch 102, micro-
Ripple six port 103, wherein, embodiment illustrated in fig. 2 of the present invention increases by the basis of embodiment described in Fig. 1
One optical receiver 201 and the second optical receiver 202.
Wherein, the first optical receiver 201, it is connected with the first radio-frequency (RF) switch 101, is used for receiving light and carries base band letter
I signal in number, and light is carried the I signal in baseband signal be forwarded to the first radio-frequency (RF) switch 101.
Concrete, in embodiments of the present invention, baseband signal can be that light carries baseband signal.
Concrete, the first optical receiver 201 can be that the light being made up of photodiode and trans-impedance amplifier connects
Receive device.
Concrete, the first optical receiver 201 can be PIN-TIA optical receiver, is used for receiving light and carries base band
The I signal of signal, and light is carried the I signal in baseband signal be forwarded to the first radio-frequency (RF) switch 101, by partially
Putting voltage, the voltage that light carries baseband signal becomes the control voltage of the first radio-frequency (RF) switch 101, controls first
The break-make of radio-frequency (RF) switch 101.
Second optical receiver 202, is connected with the second radio-frequency (RF) switch 102, carries in baseband signal for receiving light
Q signal, and light is carried the Q signal in baseband signal be forwarded to the second radio-frequency (RF) switch 102.
Concrete, in embodiments of the present invention, baseband signal can be that light carries baseband signal.
Concrete, the second optical receiver 202 can be that the light being made up of photodiode and trans-impedance amplifier connects
Receive device.
Concrete, the second optical receiver 202 can be PIN-TIA optical receiver, is used for receiving light and carries base band
The Q signal of signal, and light is carried the Q signal in baseband signal be forwarded to the second radio-frequency (RF) switch 102, pass through
Bias voltage, the voltage that light carries baseband signal becomes the control voltage of the second radio-frequency (RF) switch 102, controls the
The break-make of two radio-frequency (RF) switch 102.
First radio-frequency (RF) switch 101, the light transmitted for receiving the first optical receiver 201 carries in baseband signal
I signal, utilize I signal to control the break-make of the first radio-frequency (RF) switch 101, change the first anti-of local oscillation signal
Penetrate coefficient.
Concrete, in embodiments of the present invention, the first radio-frequency (RF) switch 101 and the in six-port microwave 103
Five ports are connected, and the light transmitted for receiving the first optical receiver 201 carries the I signal in baseband signal,
Utilize I signal to control the break-make of the first radio-frequency (RF) switch 101, change the fifth port in six-port microwave 103
Load, and then change local oscillation signal the first reflection coefficient.
Second radio-frequency (RF) switch 102, the light transmitted for receiving the second optical receiver 202 carries in baseband signal
Q signal, utilize Q signal to control the break-make of the second radio-frequency (RF) switch 102, change the second of local oscillation signal
Reflection coefficient.
Concrete, in embodiments of the present invention, the second radio-frequency (RF) switch 102 and the in six-port microwave 103
Six ports are connected, and the light transmitted for receiving the second optical receiver 202 carries the Q letter in baseband signal
Number, utilize Q signal to control the break-make of the second radio-frequency (RF) switch 102, change the in six-port microwave 103
The load of six ports, and then change the second reflection coefficient of local oscillation signal.
Six-port microwave 103, is used for utilizing the first reflection coefficient and the second reflection coefficient, carries out local oscillation signal
Modulation, wherein,
The first port in six-port microwave 103, is used for receiving local oscillation signal；
The second port in six-port microwave 103, the local oscillation signal after launching modulation；
The third and fourth port ground connection in six-port microwave 103；
Fifth port in six-port microwave 103 is connected with the first radio-frequency (RF) switch 101；
The 6th port and the second radio-frequency (RF) switch 102 in six-port microwave 103 are connected.
Concrete, six-port microwave 103 can be the microwave six being made up of a power splitter and three bonders
Port.
In actual applications, a typical six-port microwave is by a power splitter and three 90 degree of bonder groups
Becoming, the first port in six-port microwave, be used for receiving local oscillation signal, local oscillation signal is through microwave six end
Different phase changes can be experienced the when of mouth structure, the third and fourth port ground connection in six-port microwave,
Fifth port in six-port microwave is connected with the first radio-frequency (RF) switch, the 6th port in six-port microwave and
Two radio-frequency (RF) switch be connected, local oscillation signal arrive third and fourth, five, six ports when, due to each end
The load of mouth is different, and local oscillation signal has different reflections, and the signal after final reflection is convergeed to by power splitter
The second port in six-port microwave, the local oscillation signal after modulation can be launched by the second port.
Overall flow process can be stated with formula:
Wherein, a is local oscillation signal, and b is the local oscillation signal after modulation, ГIIt is the first reflection coefficient, ГQIt is
Two reflection coefficient, j represents the first reflectioncoefficientгIWith the second reflectioncoefficientгQOrthogonal.
First reflectioncoefficientгII signal according to baseband signal changes, the second reflectioncoefficientгQBelieve according to base band
Number Q signal change.
Visible, this programme use six-port microwave can realize the direct up conversion of baseband signal, and micro-
Ripple six port is completely passive, uses radio-frequency (RF) switch can realize impedance control, it is achieved high carrier frequency, high bandwidth
Signal is modulated, and six-port microwave and radio-frequency (RF) switch are implemented in combination in the function of manipulator, because microwave six
Port and radio-frequency (RF) switch low price, and six-port microwave is completely passive, and power consumption is little, so by micro-
The manipulator of ripple six port and radio-frequency (RF) switch composition decreases the cost to signal the used device of modulation and drops simultaneously
The power consumption of low modulation, and utilize optical receiver, it would be preferable to support light carries baseband signal, it is achieved to light
Carry the modulation of baseband signal.
The structural representation of the another kind of manipulator that Fig. 3 provides for the embodiment of the present invention, may include that first
Radio-frequency (RF) switch the 101, second radio-frequency (RF) switch 102, first annular device the 301, second circulator 302, microwave six
Port 103, wherein, embodiment illustrated in fig. 3 of the present invention increases by the first ring on the basis of embodiment described in Fig. 1
Shape device 301 and the second circulator 302.
Wherein, the first radio-frequency (RF) switch 101, for receiving the I signal in baseband signal, utilize this I signal control
Make the break-make of the first radio-frequency (RF) switch 101, change the first reflection coefficient of local oscillation signal.
Concrete, in embodiments of the present invention, baseband signal can be microwave-based band signal.
Concrete, in embodiments of the present invention, the first radio-frequency (RF) switch 101 is connected with first annular device 301,
For receiving the I signal in baseband signal, utilize I signal to control the break-make of the first radio-frequency (RF) switch 101, change
The load of the fifth port in change six-port microwave 103, and then change the first reflection coefficient of local oscillation signal.
Second radio-frequency (RF) switch 102, for receiving the Q signal in baseband signal, utilizes this Q signal to control the
The break-make of two radio-frequency (RF) switch 102, changes the second reflection coefficient of local oscillation signal.
Concrete, in embodiments of the present invention, baseband signal can be microwave-based band signal.
Concrete, in embodiments of the present invention, the second radio-frequency (RF) switch 102 is connected with the second circulator 302,
For receiving the Q signal in baseband signal, Q signal is utilized to control the break-make of the second radio-frequency (RF) switch 102,
The load of the 6th port in change six-port microwave 103, and then change the second reflection coefficient of local oscillation signal.
First annular device 301, is connected with the fifth port in the first radio-frequency (RF) switch 101 and six-port microwave 103,
For coordinating the first radio-frequency (RF) switch 101, change the first reflection coefficient.
In embodiments of the present invention, reflectivity is more serious everywhere, circulator have can only the characteristic of one-way transmission,
Circulator is utilized can effectively to reduce the impact of reflection.
Second circulator 302, is connected with the 6th port in the second radio-frequency (RF) switch 102 and six-port microwave 103,
For coordinating the second radio-frequency (RF) switch 102, change described second reflection coefficient.
Six-port microwave 103, is used for utilizing the first reflection coefficient and the second reflection coefficient, carries out local oscillation signal
Modulation, wherein,
The first port in six-port microwave 103, is used for receiving local oscillation signal；
The second port in six-port microwave 103, the local oscillation signal after launching modulation；
The third and fourth port ground connection in six-port microwave 103；
Fifth port in six-port microwave 103 is connected with first annular device 301；
The 6th port and the second circulator 302 in six-port microwave 103 are connected.
Concrete, six-port microwave 103 can be the microwave six being made up of a power splitter and three bonders
Port.
In actual applications, a typical six-port microwave is by a power splitter and three 90 degree of bonder groups
Becoming, the first port in six-port microwave, be used for receiving local oscillation signal, local oscillation signal is through microwave six end
Different phase changes can be experienced the when of mouth structure, the third and fourth port ground connection in six-port microwave,
Fifth port in six-port microwave is connected with the first radio-frequency (RF) switch, the 6th port in six-port microwave and
Two radio-frequency (RF) switch be connected, local oscillation signal arrive third and fourth, five, six ports when, due to each end
The load of mouth is different, and local oscillation signal has different reflections, and the signal after final reflection is convergeed to by power splitter
The second port in six-port microwave, the local oscillation signal after modulation can be launched by the second port.
Overall flow process can be stated with formula:
Wherein, a is local oscillation signal, and b is the local oscillation signal after modulation, ГIIt is the first reflection coefficient, ГQIt is
Two reflection coefficient, j represents the first reflectioncoefficientгIWith the second reflectioncoefficientгQOrthogonal.
First reflectioncoefficientгII signal according to baseband signal changes, the second reflectioncoefficientгQBelieve according to base band
Number Q signal change.
Visible, this programme use six-port microwave can realize the direct up conversion of baseband signal, and micro-
Ripple six port is completely passive, uses radio-frequency (RF) switch can realize impedance control, it is achieved high carrier frequency, high bandwidth
Signal is modulated, and six-port microwave and radio-frequency (RF) switch are implemented in combination in the function of manipulator, because microwave six
Port and radio-frequency (RF) switch low price, and six-port microwave is completely passive, and power consumption is little, so by micro-
The manipulator of ripple six port and radio-frequency (RF) switch composition decreases the cost to signal the used device of modulation and drops simultaneously
The power consumption of low modulation, increases circulator and can efficiently reduce the impact of reflection.
The structural representation of the another kind of manipulator that Fig. 4 provides for the embodiment of the present invention, may include that first
Optical receiver the 201, second optical receiver the 202, first radio-frequency (RF) switch the 101, second radio-frequency (RF) switch 102,
One circulator the 301, second circulator 302, six-port microwave 103, wherein, implement shown in Fig. 4 of the present invention
Example increases first annular device 301 and the second circulator 302 on the basis of embodiment described in Fig. 2.
Wherein, the first optical receiver 201, it is connected with the first radio-frequency (RF) switch 101, is used for receiving light and carries base band letter
I signal in number, and light is carried the I signal in baseband signal be forwarded to the first radio-frequency (RF) switch 101.
Concrete, in embodiments of the present invention, baseband signal can be that light carries baseband signal.
Concrete, the first optical receiver 201 can be that the light being made up of photodiode and trans-impedance amplifier connects
Receive device.
Concrete, the first optical receiver 201 can be PIN-TIA optical receiver, is used for receiving light and carries base band
The I signal of signal, and light is carried the I signal in baseband signal be forwarded to the first radio-frequency (RF) switch 101, by partially
Putting voltage, the voltage that light carries baseband signal becomes the control voltage of the first radio-frequency (RF) switch 101, controls first
The break-make of radio-frequency (RF) switch 101.
Second optical receiver 202, is connected with the second radio-frequency (RF) switch 102, carries in baseband signal for receiving light
Q signal, and light is carried the Q signal in baseband signal be forwarded to the second radio-frequency (RF) switch 102.
Concrete, in embodiments of the present invention, baseband signal can be that light carries baseband signal.
Concrete, the second optical receiver 202 can be that the light being made up of photodiode and trans-impedance amplifier connects
Receive device.
Concrete, the second optical receiver 202 can be PIN-TIA optical receiver, is used for receiving light and carries base band
The Q signal of signal, and light is carried the Q signal in baseband signal be forwarded to the second radio-frequency (RF) switch 102, pass through
Bias voltage, the voltage that light carries baseband signal becomes the control voltage of the second radio-frequency (RF) switch 102, controls the
The break-make of two radio-frequency (RF) switch 102.
First radio-frequency (RF) switch 101, the light transmitted for receiving the first optical receiver 201 carries in baseband signal
I signal, utilize I signal to control the break-make of the first radio-frequency (RF) switch 101, change the first anti-of local oscillation signal
Penetrate coefficient.
Concrete, in embodiments of the present invention, the first radio-frequency (RF) switch 101 and the first optical receiver 201 and the
One circulator 301 is connected, and the light transmitted for receiving the first optical receiver 201 carries in baseband signal
I signal, utilize I signal to control the break-make of the first radio-frequency (RF) switch 101, change in six-port microwave 103
The load of fifth port, and then change the first reflection coefficient of local oscillation signal.
Second radio-frequency (RF) switch 102, the light transmitted for receiving the second optical receiver 202 carries in baseband signal
Q signal, utilize Q signal to control the break-make of the second radio-frequency (RF) switch 102, change the second of local oscillation signal
Reflection coefficient.
Concrete, in embodiments of the present invention, the second radio-frequency (RF) switch 102 and the second optical receiver 202 and the
Second ring device 302 is connected, and the light transmitted for receiving the second optical receiver 202 carries in baseband signal
Q signal, utilize Q signal to control the break-make of the second radio-frequency (RF) switch 102, change six-port microwave 103
In the load of the 6th port, and then change the second reflection coefficient of local oscillation signal.
First annular device 301, is connected with the fifth port in the first radio-frequency (RF) switch 101 and six-port microwave 103,
For coordinating the first radio-frequency (RF) switch 101, change the first reflection coefficient.
In embodiments of the present invention, reflectivity is more serious everywhere, circulator have can only the characteristic of one-way transmission,
Circulator is utilized can effectively to reduce the impact of reflection.
Second circulator 302, is connected with the 6th port in the second radio-frequency (RF) switch 102 and six-port microwave 103,
For coordinating the second radio-frequency (RF) switch 102, change described second reflection coefficient.
Six-port microwave 103, is used for utilizing the first reflection coefficient and the second reflection coefficient, carries out local oscillation signal
Modulation, wherein,
The first port in six-port microwave 103, is used for receiving local oscillation signal；
The second port in six-port microwave 103, the local oscillation signal after launching modulation；
The third and fourth port ground connection in six-port microwave 103；
Fifth port in six-port microwave 103 is connected with first annular device 301；
The 6th port and the second circulator 302 in six-port microwave 103 are connected.
Concrete, six-port microwave 103 can be the microwave six being made up of a power splitter and three bonders
Port.
In actual applications, a typical six-port microwave is by a power splitter and three 90 degree of bonder groups
Becoming, the first port in six-port microwave, be used for receiving local oscillation signal, local oscillation signal is through microwave six end
Different phase changes can be experienced the when of mouth structure, the third and fourth port ground connection in six-port microwave,
Fifth port in six-port microwave is connected with the first radio-frequency (RF) switch, the 6th port in six-port microwave and
Two radio-frequency (RF) switch be connected, local oscillation signal arrive third and fourth, five, six ports when, due to each end
The load of mouth is different, and local oscillation signal has different reflections, and the signal after final reflection is convergeed to by power splitter
The second port in six-port microwave, the local oscillation signal after modulation can be launched by the second port.
Overall flow process can be stated with formula:
Wherein, a is local oscillation signal, and b is the local oscillation signal after modulation, ГIIt is the first reflection coefficient, ГQIt is
Two reflection coefficient, j represents the first reflectioncoefficientгIWith the second reflectioncoefficientгQOrthogonal.
First reflectioncoefficientгII signal according to baseband signal changes, the second reflectioncoefficientгQBelieve according to base band
Number Q signal change.
Visible, this programme use six-port microwave can realize the direct up conversion of baseband signal, and micro-
Ripple six port is completely passive, uses radio-frequency (RF) switch can realize impedance control, it is achieved high carrier frequency, high bandwidth
Signal is modulated, and six-port microwave and radio-frequency (RF) switch are implemented in combination in the function of manipulator, because microwave six
Port and radio-frequency (RF) switch low price, and six-port microwave is completely passive, and power consumption is little, so by micro-
The manipulator of ripple six port and radio-frequency (RF) switch composition decreases the cost that signal is modulated used device, simultaneously
Reduce the power consumption of modulation, and utilize optical receiver, it would be preferable to support light carries baseband signal, it is achieved right
Light carries the modulation of baseband signal, increases circulator and can efficiently reduce the impact of reflection.
It should be noted that in this article, the relational terms of such as first and second or the like be used merely to by
One entity or operation separate with another entity or operating space, and not necessarily require or imply these
Relation or the order of any this reality is there is between entity or operation.And, term " includes ", " bag
Contain " or its any other variant be intended to comprising of nonexcludability, so that include a series of key element
Process, method, article or equipment not only include those key elements, but also include being not expressly set out
Other key elements, or also include the key element intrinsic for this process, method, article or equipment.?
In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that at bag
Include and the process of described key element, method, article or equipment there is also other identical element.
Each embodiment in this specification all uses relevant mode to describe, phase homophase between each embodiment
As part see mutually, what each embodiment stressed is the difference with other embodiments,
Relevant part sees the part of embodiment of the method and illustrates.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.
All any modification, equivalent substitution and improvement etc. made within the spirit and principles in the present invention, are all contained in
In protection scope of the present invention.
Claims (6)
1. a manipulator, it is characterised in that described manipulator includes: the first radio-frequency (RF) switch, the second radio frequency
Switch and six-port microwave, wherein,
Described first radio-frequency (RF) switch, for receiving the I signal in baseband signal, utilizes described I signal to control described
The break-make of the first radio-frequency (RF) switch, changes the first reflection coefficient of local oscillation signal；
Described second radio-frequency (RF) switch, for receiving the Q signal in described baseband signal, utilizes described Q signal control
Make the break-make of described second radio-frequency (RF) switch, change the second reflection coefficient of described local oscillation signal；
Described six-port microwave, is used for utilizing described first reflection coefficient and described second reflection coefficient, to institute
State local oscillation signal to be modulated, wherein,
The first port in described six-port microwave, is used for receiving described local oscillation signal；
The second port in described six-port microwave, the local oscillation signal after launching modulation；
The third and fourth port ground connection in described six-port microwave；
Fifth port in described six-port microwave is connected with described first radio-frequency (RF) switch；
The 6th port in described six-port microwave is connected with described second radio-frequency (RF) switch.
Manipulator the most according to claim 1, it is characterised in that described baseband signal can be:
Microwave-based band signal or light carry baseband signal.
Manipulator the most according to claim 2, it is characterised in that when described baseband signal is that light carries base
During band signal, described manipulator also includes the first optical receiver and the second optical receiver:
Described first optical receiver is connected with described first radio-frequency (RF) switch, is used for receiving described light and carries baseband signal
In I signal, and the I signal that described light carries in baseband signal is forwarded to described first radio-frequency (RF) switch；
Described second optical receiver is connected with described second radio-frequency (RF) switch, is used for receiving described light and carries baseband signal
In Q signal, and the Q signal that described light carries in baseband signal is forwarded to described second radio-frequency (RF) switch.
Manipulator the most according to claim 3, it is characterised in that described first optical receiver and described
Second optical receiver can be:
The optical receiver being made up of photodiode and trans-impedance amplifier.
5. according to the manipulator described in any one of claim 1-4, it is characterised in that described manipulator also includes
First annular device and the second circulator:
Fifth port in described first annular device, with described first radio-frequency (RF) switch and described six-port microwave is even
Connect, be used for coordinating described first radio-frequency (RF) switch, change described first reflection coefficient；
The 6th port in described second circulator, with described second radio-frequency (RF) switch and described six-port microwave is even
Connect, be used for coordinating described second radio-frequency (RF) switch, change described second reflection coefficient.
Manipulator the most according to claim 1, it is characterised in that described six-port microwave is:
The six-port microwave being made up of a power splitter and three bonders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258652.4A CN105959243A (en) | 2016-04-22 | 2016-04-22 | Modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258652.4A CN105959243A (en) | 2016-04-22 | 2016-04-22 | Modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105959243A true CN105959243A (en) | 2016-09-21 |
Family
ID=56915167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610258652.4A Pending CN105959243A (en) | 2016-04-22 | 2016-04-22 | Modulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105959243A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1252183A (en) * | 1997-12-18 | 2000-05-03 | 索尼国际(欧洲)股份有限公司 | N-port direct receiver |
| US20090267746A1 (en) * | 2008-04-23 | 2009-10-29 | Martec Corporation | Multi-Port Receiver |
| CN201450518U (en) * | 2009-04-29 | 2010-05-05 | 南京赛格微电子科技有限公司 | Broadband 6-port direct QPSK modulator |
| CN103582277A (en) * | 2012-07-19 | 2014-02-12 | 西门子公司 | MeV-Electron source |
| CN105357165A (en) * | 2015-11-19 | 2016-02-24 | 重庆大学 | Orthogonal linearly-polarized digital modulator |
-
2016
- 2016-04-22 CN CN201610258652.4A patent/CN105959243A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1252183A (en) * | 1997-12-18 | 2000-05-03 | 索尼国际(欧洲)股份有限公司 | N-port direct receiver |
| EP1014562B1 (en) * | 1997-12-18 | 2006-04-12 | Sony Deutschland GmbH | Demodulator and method for the demodulation of modulated RF signals |
| US20090267746A1 (en) * | 2008-04-23 | 2009-10-29 | Martec Corporation | Multi-Port Receiver |
| CN201450518U (en) * | 2009-04-29 | 2010-05-05 | 南京赛格微电子科技有限公司 | Broadband 6-port direct QPSK modulator |
| CN103582277A (en) * | 2012-07-19 | 2014-02-12 | 西门子公司 | MeV-Electron source |
| CN105357165A (en) * | 2015-11-19 | 2016-02-24 | 重庆大学 | Orthogonal linearly-polarized digital modulator |
Non-Patent Citations (1)
| Title |
|---|
| 张兰 等: "射频六端口OFDM解调器研究", 《电子科技大学学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Takano et al. | 17.9 A 105Gb/s 300GHz CMOS transmitter | |
| CN102780483B (en) | With the radio frequency digital to analog converter of configurable digital to analog converter mixer interface and configurable mixer | |
| CN103117768B (en) | A kind of wireless transmitter | |
| US4492960A (en) | Switching mixer | |
| CN1118952C (en) | Circulator usage in time division duplex radios | |
| Qin et al. | Broadband parametric circulator with balanced monolithic integrated distributedly modulated capacitors (DMC) | |
| CN104009765B (en) | A kind of high-performance LTE channel simulator radio frequency sending set | |
| WO2014069782A1 (en) | Ook modulation device and wireless transmitting device including same | |
| CN105075143A (en) | Antenna switching system and method | |
| CN103986450A (en) | Switch, tuner of antenna and radio frequency device | |
| CN106972881A (en) | A kind of method and apparatus of wave beam forming BF weights assignment | |
| US10797760B2 (en) | Shared-antenna interface apparatus for simultaneous transmit and receive | |
| US6768770B1 (en) | Transceiver with bidirectional internal interface lines | |
| CN102324892B (en) | High-frequency microwave signal full-gloss down conversion system | |
| CN106230471B (en) | A kind of radio circuit and mobile terminal of carrier wave polymerization | |
| CN110504986A (en) | Transceiver insulation circuit, TDD wireless transceiver circuit and base station | |
| CN102611469B (en) | A kind of phase-shift filtering method | |
| US20130194022A1 (en) | Switch mode circulator isolated rf mixer | |
| CN101414846A (en) | Bidirectional frequency mixer, radiofrequency transceiver system including such a mixer | |
| CN104378136A (en) | Wireless transceiver | |
| CN101222741B (en) | Device and method for calibrating zero intermediate frequency transmitting parameter of base station | |
| CN105162540B (en) | Wireless digital broadcasting station | |
| CN105959243A (en) | Modulator | |
| US10554246B2 (en) | Method and apparatus for broadband high-isolation circulator for simultaneous transmit and receive systems | |
| CN207588838U (en) | A kind of antenna rf circuit and radio-frequency unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160921 |
|
| RJ01 | Rejection of invention patent application after publication |