CN114629457B - Device and method for controlling frequency source and frequency source - Google Patents
Device and method for controlling frequency source and frequency source Download PDFInfo
- Publication number
- CN114629457B CN114629457B CN202111654042.3A CN202111654042A CN114629457B CN 114629457 B CN114629457 B CN 114629457B CN 202111654042 A CN202111654042 A CN 202111654042A CN 114629457 B CN114629457 B CN 114629457B
- Authority
- CN
- China
- Prior art keywords
- spdt switch
- operational amplifier
- analog
- attenuator
- signal
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/24—Frequency-independent attenuators
Landscapes
- Amplifiers (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
The embodiment of the application relates to a device, a method and a frequency source for controlling the frequency source, wherein the device comprises an electrically-controlled attenuator, a coupler, a detector, a first SPDT switch, a second SPDT switch, a third SPDT switch, a comparator, a first operational amplifier, a second operational amplifier, an analog-to-digital converter, a digital-to-analog converter, a controller and a temperature sensor; the controller is used for obtaining the detection voltage of the detection signal through the analog-to-digital converter, obtaining first compensation data according to the detection voltage, the temperature data, the frequency control word and the amplitude control word, and controlling the digital-to-analog converter to generate a first compensation voltage signal; the first compensation voltage signal forms a first feedback signal, and the first feedback signal is used for adjusting the attenuation multiple of the electric adjustment attenuator. The amplitude control circuit of the frequency source can be switched to be directly connected with the theoretical value calculated by the high-speed controller to control the attenuation multiple when the shortcut signal is required to be output, so that the time for integrating feedback by using the analog circuit is reduced.
Description
Technical Field
The embodiment of the application relates to the technical field of electronics, in particular to a device and a method for controlling a frequency source and the frequency source.
Background
Millimeter wave frequency sources are an important component in communication systems and radio technologies, and are also a core part of military electronic systems. Along with the improvement of the demand, the millimeter wave frequency source has higher and higher demands on the indexes such as output amplitude control capability, frequency stability, agile frequency capability, phase noise, spurious emission and the like.
Wherein the agile signal requires an amplitude switching time on the order of 100 ns. However, currently, the amplitude switching time of the conventional analog ALC (Automatic Level Control ) control method used by millimeter wave frequency sources is usually in the order of milliseconds, and cannot meet the requirement of rapid switching amplitude of agile signals. How to increase the speed of amplitude switching of the millimeter wave frequency source, so that the time of amplitude switching meets the requirement of agile signals is one of the technical problems in the field.
Therefore, the inventor provides a method for controlling the frequency source, and the method is applied to control the frequency source, so that the amplitude switching time of the frequency source can meet the requirement of agile signals.
Disclosure of Invention
First, the technical problem to be solved
The technical problem to be solved by the embodiment of the application is that the ALC control method used by the frequency source in the prior art has slower amplitude switching time and cannot meet the requirement of the agile signal on the amplitude switching time.
(II) technical scheme
To solve the above technical problem, according to an aspect of an embodiment of the present application, there is provided an apparatus for controlling a frequency source, including: the device comprises an electrically-controlled attenuator, a coupler, a detector, a first SPDT switch, a second SPDT switch, a third SPDT switch, a comparator, a first operational amplifier, a second operational amplifier, an analog-to-digital converter, a digital-to-analog converter, a controller and a temperature sensor;
The electric tuning attenuator is connected with the coupler, one end of the coupler is used for outputting a first output signal, the other end of the coupler is connected with the detector, the detector is connected with the motionless end of the first SPDT switch, one motionless end of the first SPDT switch is connected with the analog-to-digital converter, the other motionless end of the first SPDT switch is connected with the comparator, the analog-to-digital converter is connected with the controller, the comparator is connected with one motionless end of the second SPDT switch, the other motionless end of the second SPDT switch is connected with the digital-to-analog converter, the digital-to-analog converter is connected with the controller, the comparator is connected with the first operational amplifier, the first operational amplifier is connected with one motionless end of the third SPDT switch, the other motionless end of the third SPDT switch is connected with the electric tuning attenuator; the temperature sensor is connected with the controller and used for acquiring temperature data;
The fixed end of the first SPDT switch is connected with the analog-to-digital converter, the fixed end of the second SPDT switch is connected with the second operational amplifier, and when the fixed end of the third SPDT switch is connected with the second operational amplifier, the input signal filtered by the switch passes through the electrically-controlled attenuator and the coupler and outputs a detection signal through the detector; the controller is used for obtaining the detection voltage of the detection signal through the analog-to-digital converter, obtaining first compensation data according to the detection voltage, the temperature data, the frequency control word and the amplitude control word, and controlling the digital-to-analog converter to generate a first compensation voltage signal according to the first compensation data; the first compensation voltage signal forms a first feedback signal through the second operational amplifier, and the first feedback signal is used for adjusting the attenuation multiple of the electric adjustment attenuator so as to adjust the amplitude of the first output signal.
Further, the fixed end of the first SPDT switch is connected with the comparator, the fixed end of the second SPDT switch is connected with the comparator, when the fixed end of the third SPDT switch is connected with the first operational amplifier, the controller generates second compensation data according to the frequency control word, the amplitude control word and the temperature data, the digital-to-analog converter is controlled according to the second compensation data to generate a second compensation voltage signal, the second compensation voltage signal and the detection signal are input into the comparator, the comparator obtains a comparison signal, the comparison signal forms a second feedback signal through the first operational amplifier, and the second feedback signal is used for adjusting the attenuation multiple of the electric adjustment attenuator so as to adjust the amplitude of the first output signal.
Further, one end of the coupler for outputting the first output signal is connected with the numerical control attenuator, and the numerical control attenuator is controlled by the controller; the first output signal forms a second output signal through a numerical control attenuator;
The controller is also used for controlling the attenuation multiple of the numerical control attenuator according to the detection voltage so as to adjust the amplitude of the second output signal.
Further, the numerical control attenuator is connected with the third operational amplifier;
The second output signal forms a third output signal through a third operational amplifier;
the controller is also used for controlling the gate voltage of the third operational amplifier.
Further, the digitally controlled attenuator comprises a plurality of cells connected in series with each other, each cell comprising two fourth SPDT switches and a sub-attenuator for amplifying the signal passing through the cell, the fourth SPDT switches being used for controlling whether the signal passes through the sub-attenuator.
According to another aspect of an embodiment of the present application, there is provided a method for controlling a frequency source, applied to a controller, including:
Controlling the fixed end of the first SPDT switch to be connected with the analog-to-digital converter, the fixed end of the second SPDT switch to be connected with the second operational amplifier, and the fixed end of the third SPDT switch to be connected with the second operational amplifier;
Obtaining detection voltage of an analog-to-digital converter;
acquiring temperature data of a temperature sensor;
Acquiring a frequency control word and an amplitude control word;
acquiring first compensation data according to the detection voltage, the temperature data, the frequency control word and the amplitude control word;
and controlling the digital-to-analog converter to generate a first compensation voltage signal according to the first compensation data so as to adjust the attenuation multiple of the electric adjustment attenuator by using the first compensation voltage signal and further adjust the amplitude of the first output signal.
According to another aspect of an embodiment of the present application, there is provided a control frequency source comprising an apparatus as claimed in any one of the preceding claims.
(III) beneficial effects
The technical scheme provided by the embodiment of the application has the following advantages:
the amplitude control circuit of the frequency source can be switched to be directly connected with the theoretical value calculated by the high-speed controller to control the attenuation multiple when the shortcut signal is required to be output, so that the time for integrating feedback by using the analog circuit is reduced.
Drawings
FIG. 1 is a schematic circuit diagram of an apparatus for controlling a frequency source according to an embodiment of the present application;
In the figure: 1. an electrically tunable attenuator; 2. a coupler; 3. a wave detector; 4. a first SPDT switch; 5. a second SPDT switch; 6. a third SPDT switch; 7. a comparator; 8. a first operational amplifier; 9. a second operational amplifier; 10. an analog-to-digital converter; 11. a digital-to-analog converter; 12. a controller; 13. a temperature sensor; .
FIG. 2 is a schematic diagram of a digitally controlled attenuator comprising four units according to an embodiment of the present application;
fig. 3 is a flow chart of a method of controlling a frequency source device according to an embodiment of the present application.
Detailed Description
The following describes in further detail the implementation of embodiments of the present application with reference to the drawings and examples. The following examples are illustrative of embodiments of the application and are not intended to limit the scope of the embodiments of the application.
In the description of embodiments of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of embodiments of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting embodiments of the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.
Fig. 1 is a schematic circuit diagram of an apparatus for controlling a frequency source according to an embodiment of the present application, and as shown in fig. 1, the apparatus includes an electrically tunable attenuator 1, a coupler 2, a detector 3, a first SPDT switch 4, a second SPDT switch 5, a third SPDT switch 6, a comparator 7, a first operational amplifier 8, a second operational amplifier 9, an analog-to-digital converter 10, a digital-to-analog converter 11, a controller 12, and a temperature sensor 13;
The electric tuning attenuator 1 is connected with the coupler 2, one end of the coupler 2 is used for outputting a first output signal, the other end of the coupler 2 is connected with the detector 3, the detector 3 is connected with the motionless end of the first SPDT switch 4, one motionless end of the first SPDT switch 4 is connected with the analog-digital converter 10, the other motionless end of the first SPDT switch 4 is connected with the comparator 7, the analog-digital converter 10 is connected with the controller 12, the comparator 7 is connected with one motionless end of the second SPDT switch 5, the other motionless end of the second SPDT switch 5 is connected with the second operational amplifier 9, the motionless end of the second SPDT switch 5 is connected with the digital-analog converter 11, the digital-analog converter 11 is connected with the controller 12, the comparator 7 is connected with the first operational amplifier 8, the first operational amplifier 8 is connected with one motionless end of the third SPDT switch 6, the other motionless end of the third SPDT switch 6 is connected with the second operational amplifier 9, and the electric tuning attenuator 1; the temperature sensor 13 is connected with the controller 12 and is used for acquiring temperature data;
The fixed end of the first SPDT switch 4 is connected with the analog-to-digital converter 10, the fixed end of the second SPDT switch 5 is connected with the second operational amplifier 9, and when the fixed end of the third SPDT switch 6 is connected with the second operational amplifier 9, the input signal filtered by the switch passes through the electrically-controlled attenuator 1 and the coupler 2 and outputs a detection signal through the detector 3; the controller 12 is configured to obtain a detection voltage of the detection signal through the analog-to-digital converter 10, obtain first compensation data according to the detection voltage, the temperature data, the frequency control word and the amplitude control word, and control the digital-to-analog converter 11 to generate a first compensation voltage signal according to the first compensation data; the first compensation voltage signal forms a first feedback signal through the second operational amplifier 9, and the first feedback signal is used for adjusting the attenuation multiple of the electric adjustment attenuator 1, so as to adjust the amplitude of the first output signal.
The application scene of the embodiment of the application is an amplitude control circuit of a frequency source. The amplitude control circuit controls the amplitude of the output signal by controlling the electrically tunable attenuator 1. The common analog Automatic Level Control (ALC) generates a control signal of attenuation multiple through a negative feedback circuit formed by analog components, the speed is slower, and the quick switching requirement of the amplitude of the agile signal can not be met. Therefore, the embodiment of the application adds a digital fast closed loop to realize the frequency agility function, and realizes the switching of an analog ALC loop or a digital loop (namely, the data required by the adjustment of the attenuation multiple is directly calculated by the controller 12, and the attenuation multiple of the electrically-controlled attenuator 1 is controlled according to the data) through an SPDT switch.
Specifically, the controller 12 in the embodiment of the present application may be an FPGA (Field Programmable GATE ARRAY ), and the data processing speed is faster by using a high-speed clock. In the digital loop, the FPGA adopts a high-speed clock, and can perform data processing such as quick table lookup, comparison, operation, correction and the like, so that the operation and response speed is high, and the control time is less than 100ns.
In addition, because the amplifier is sensitive to temperature, the temperature sensor 13 is added in the system to collect the temperature, and compensation and correction are carried out through the controller 12, so that the reliability of the system is ensured.
Specifically, the controller 12 generates compensation data based on the frequency control word, the amplitude control word, and the temperature data, and calculates data for controlling the attenuation factor of the electronically controlled attenuator (i.e., first compensation data) based on the compensation data and the detection voltage obtained by the detector 3. The controller 12 may generate the compensation data based on the frequency control word, the amplitude control word, and the temperature data by looking up a table. The controller 12 may have an empirical data table containing frequency control words, amplitude control words, temperature data.
Specifically, the embodiment of the present application switches the negative feedback loop for generating the control signal of the damping multiple by controlling the first SPDT (Single Pole Double Throw ) switch, the second SPDT switch 5, and the third SPDT switch 6. If the agile signal needs to be processed, the control signal is switched to generate the attenuation multiple through the controller 12.
The input signal of the embodiment of the application is input by the electrically tunable attenuator 1, and the input signal can be a 40-67 GHz broadband agile vector signal obtained by a switch band-pass filter.
The amplitude control circuit of the frequency source in the embodiment of the application can be switched to be directly connected with the theoretical value calculated by the high-speed controller 12 to control the attenuation multiple when the shortcut signal is required to be output, thereby reducing the time for integrating feedback by using an analog circuit.
As a preferred embodiment, the stationary end of the first SPDT switch 4 is connected to the comparator 7, the stationary end of the second SPDT switch 5 is connected to the comparator 7, and when the stationary end of the third SPDT switch 6 is connected to the first operational amplifier 8, the controller 12 generates second compensation data according to the frequency control word, the amplitude control word, and the temperature data, controls the digital-to-analog converter 11 according to the second compensation data to generate a second compensation voltage signal, the second compensation voltage signal and the detection signal are input to the comparator 7, the comparator 7 obtains a comparison signal, the comparison signal forms a second feedback signal through the first operational amplifier 8, and the second feedback signal is used for adjusting the attenuation multiple of the electric adjustment attenuator 1, thereby adjusting the amplitude of the first output signal.
When the agile signal is not required to be generated, the frequency source is switched into the analog loop with higher accuracy in controlling the amplitude, so that the agile signal is not required to be output, and the signal with more accurate amplitude can be output.
As another preferred embodiment, one end of the coupler 2 for outputting the first output signal is connected to a digitally controlled attenuator, which is controlled by the controller 12; the first output signal forms a second output signal through a numerical control attenuator; the controller 12 is further configured to control the attenuation multiple of the digitally controlled attenuator according to the detection voltage, thereby adjusting the amplitude of the second output signal.
The numerical control attenuator added in the embodiment of the application is used for further attenuating the output signal at the later stage. For satisfying the need to output signals of a wider range of amplitudes.
As another preferred embodiment, as an alternative real-time manner, the digitally controlled attenuator includes a plurality of units connected in series with each other, each unit including two fourth SPDT switches and a sub-attenuator for amplifying the signal passing through the unit, the fourth SPDT switches being used to control whether the signal passes through the sub-attenuator.
Specifically, the fourth SPDT switch of the unit is connected to the sub-attenuator, i.e. the unit is a corresponding attenuation factor for attenuating the sub-attenuator. Not connected to the sub-attenuators, the unit is not used for attenuation.
Taking the example that the digital control attenuator comprises four units, fig. 2 is a schematic diagram of the digital control attenuator comprising four units according to the embodiment of the present application, the attenuators of the four units in fig. 2 respectively correspond to a dynamic range of 10dB and a step of 10dB, a dynamic range of 20dB and a step of 20dB, a dynamic range of 40dB and a step of 40dB, and a dynamic range of 70dB and a step of 70dB. And then the dynamic range is better than 100dB by matching with the electrically-controlled attenuator 1 with the dynamic range of 30dB and the stepping of 0.5dB, and the stepping of 0.5dB attenuation can be realized.
As other optional real-time modes, the numerical control attenuator is connected with the third operational amplifier;
The second output signal forms a third output signal through a third operational amplifier;
the controller 12 is also used to control the gate voltage of the third operational amplifier.
Specifically, the gate voltage is used as a window to determine whether the second output signal can pass through a circuit composed of the third operational amplifier. Thus, the embodiment of the application can generate the pulse signal through the grid voltage.
Fig. 3 is a flowchart of a method of controlling a frequency source device according to an embodiment of the present application, where the method is applied to the controller 12, and includes the following steps S1 to S4:
step S1, controlling the stationary end of the first SPDT switch 4 to be connected with the analog-to-digital converter 10, the stationary end of the second SPDT switch 5 to be connected with the second operational amplifier 9, and the stationary end of the third SPDT switch 6 to be connected with the second operational amplifier 9;
Step S1, obtaining detection voltage of an analog-to-digital converter 10;
step S2, acquiring temperature data of the temperature sensor 13;
step S3, obtaining a frequency control word and an amplitude control word;
s4, acquiring first compensation data according to the detection voltage, the temperature data, the frequency control word and the amplitude control word;
step S5, controlling the digital-to-analog converter 11 according to the first compensation data to generate a first compensation voltage signal, so as to adjust the attenuation multiple of the electric adjustment attenuator 1 by using the first compensation voltage signal, and further adjust the amplitude of the first output signal.
The embodiment of the application provides a control frequency source, which comprises the device of any one of the above.
It should be understood that, in the present specification, each embodiment is described in an incremental manner, and the same or similar parts between the embodiments are all referred to each other, and each embodiment is mainly described in a different point from other embodiments. For embodiments of the method, the relevance is found in the written description of embodiments of the apparatus. The embodiments of the application are not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known method techniques is omitted here for the sake of brevity.
The foregoing is merely a preferred embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the technical principles of the embodiment of the present application, and these improvements and modifications should also be regarded as the protection scope of the embodiment of the present application.
Claims (7)
1. An apparatus for controlling a frequency source, comprising: the electric tuning attenuator comprises an electric tuning attenuator (1), a coupler (2), a detector (3), a first SPDT switch (4), a second SPDT switch (5), a third SPDT switch (6), a comparator (7), a first operational amplifier (8), a second operational amplifier (9), an analog-to-digital converter (10), a digital-to-analog converter (11), a controller (12) and a temperature sensor (13);
The electric tuning attenuator (1) is connected with the coupler (2), one end of the coupler (2) is used for outputting a first output signal, the other end of the coupler (2) is connected with the detector (3), the detector (3) is connected with the motionless end of the first SPDT switch (4), one motionless end of the first SPDT switch (4) is connected with the analog-digital converter (10), the other motionless end of the first SPDT switch (4) is connected with the comparator (7), the analog-digital converter (10) is connected with the controller (12), the comparator (7) is connected with one motionless end of the second SPDT switch (5), the other motionless end of the second SPDT switch (5) is connected with the second operational amplifier (9), the motionless end of the second SPDT switch (5) is connected with the digital-analog converter (11), the other motionless end of the first SPDT switch (6) is connected with the controller (12), the first SPDT switch (8) is connected with the third operational amplifier (6), and the other motionless end of the second SPDT switch (5) is connected with the third operational amplifier (6); the temperature sensor (13) is connected with the controller (12) and is used for acquiring temperature data;
The fixed end of the first SPDT switch (4) is connected with the analog-to-digital converter (10), the fixed end of the second SPDT switch (5) is connected with the second operational amplifier (9), and when the fixed end of the third SPDT switch (6) is connected with the second operational amplifier (9), the input signal filtered by the switch passes through the electrically tunable attenuator (1) and the coupler (2) and outputs a detection signal through the detector (3); the controller (12) is used for acquiring detection voltage of the detection signal through the analog-to-digital converter (10), acquiring first compensation data according to the detection voltage, the temperature data, a frequency control word and an amplitude control word, and controlling the digital-to-analog converter (11) to generate a first compensation voltage signal according to the first compensation data; the first compensation voltage signal forms a first feedback signal through the second operational amplifier (9), and the first feedback signal is used for adjusting the attenuation multiple of the electrically-controlled attenuator (1) so as to adjust the amplitude of the first output signal.
2. The apparatus of claim 1, wherein,
The fixed end of the first SPDT switch (4) is connected with the comparator (7), the fixed end of the second SPDT switch (5) is connected with the comparator (7), when the fixed end of the third SPDT switch (6) is connected with the first operational amplifier (8), the controller (12) generates second compensation data according to the frequency control word, the amplitude control word and the temperature data, the digital-analog converter (11) is controlled according to the second compensation data to generate a second compensation voltage signal, the second compensation voltage signal and the detection signal are input into the comparator (7), the comparator (7) obtains a comparison signal, the comparison signal forms a second feedback signal through the first operational amplifier (8), and the second feedback signal is used for adjusting the attenuation multiple of the electrically-controlled attenuator (1) so as to adjust the amplitude of the first output signal.
3. The apparatus of claim 1, wherein,
One end of the coupler (2) for outputting the first output signal is connected with a numerical control attenuator, and the numerical control attenuator is controlled by the controller (12); the first output signal forms a second output signal through the numerical control attenuator;
the controller (12) is further configured to control an attenuation multiple of the digitally controlled attenuator according to the detection voltage, so as to adjust the amplitude of the second output signal.
4. The apparatus of claim 3, wherein the device comprises a plurality of sensors,
The numerical control attenuator is connected with the third operational amplifier;
the second output signal forms a third output signal through the third operational amplifier;
the controller (12) is also configured to control a gate voltage of the third operational amplifier.
5. The apparatus of claim 4, wherein,
The numerical control attenuator comprises a plurality of units which are connected in series, each unit comprises two fourth SPDT switches, an operational amplifier with amplification gain and a sub-attenuator with amplification attenuation, and the fourth SPDT switches are used for controlling whether signals passing through the units pass through the sub-attenuator.
6. A method of controlling a frequency source, applied to a controller (12), characterized in that the method is implemented using a device for controlling a frequency source,
The device comprises: the electric tuning attenuator comprises an electric tuning attenuator (1), a coupler (2), a detector (3), a first SPDT switch (4), a second SPDT switch (5), a third SPDT switch (6), a comparator (7), a first operational amplifier (8), a second operational amplifier (9), an analog-to-digital converter (10), a digital-to-analog converter (11), a controller (12) and a temperature sensor (13);
The electric tuning attenuator (1) is connected with the coupler (2), one end of the coupler (2) is used for outputting a first output signal, the other end of the coupler (2) is connected with the detector (3), the detector (3) is connected with the motionless end of the first SPDT switch (4), one motionless end of the first SPDT switch (4) is connected with the analog-digital converter (10), the other motionless end of the first SPDT switch (4) is connected with the comparator (7), the analog-digital converter (10) is connected with the controller (12), the comparator (7) is connected with one motionless end of the second SPDT switch (5), the other motionless end of the second SPDT switch (5) is connected with the second operational amplifier (9), the motionless end of the second SPDT switch (5) is connected with the digital-analog converter (11), the other motionless end of the first SPDT switch (6) is connected with the controller (12), the first SPDT switch (8) is connected with the third operational amplifier (6), and the other motionless end of the second SPDT switch (5) is connected with the third operational amplifier (6); the temperature sensor (13) is connected with the controller (12) and is used for acquiring temperature data;
The fixed end of the first SPDT switch (4) is connected with the analog-to-digital converter (10), the fixed end of the second SPDT switch (5) is connected with the second operational amplifier (9), and when the fixed end of the third SPDT switch (6) is connected with the second operational amplifier (9), the input signal filtered by the switch passes through the electrically tunable attenuator (1) and the coupler (2) and outputs a detection signal through the detector (3); the controller (12) is used for acquiring detection voltage of the detection signal through the analog-to-digital converter (10), acquiring first compensation data according to the detection voltage, the temperature data, a frequency control word and an amplitude control word, and controlling the digital-to-analog converter (11) to generate a first compensation voltage signal according to the first compensation data; the first compensation voltage signal forms a first feedback signal through the second operational amplifier (9), and the first feedback signal is used for adjusting the attenuation multiple of the electrically-controlled attenuator (1) so as to adjust the amplitude of the first output signal;
the method comprises the following steps:
Controlling the stationary end of the first SPDT switch (4) to be connected with the analog-to-digital converter (10), the stationary end of the second SPDT switch (5) to be connected with the second operational amplifier (9), and the stationary end of the third SPDT switch (6) to be connected with the second operational amplifier (9);
Obtaining a detection voltage of an analog-to-digital converter (10);
acquiring temperature data of a temperature sensor (13);
Acquiring a frequency control word and an amplitude control word;
acquiring first compensation data according to the detection voltage, the temperature data, the frequency control word and the amplitude control word;
And controlling the digital-to-analog converter (11) to generate a first compensation voltage signal according to the first compensation data so as to adjust the attenuation multiple of the electrically-controlled attenuator (1) by utilizing the first compensation voltage signal, thereby adjusting the amplitude of the first output signal.
7. A control frequency source comprising the apparatus of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111654042.3A CN114629457B (en) | 2021-12-30 | 2021-12-30 | Device and method for controlling frequency source and frequency source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111654042.3A CN114629457B (en) | 2021-12-30 | 2021-12-30 | Device and method for controlling frequency source and frequency source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114629457A CN114629457A (en) | 2022-06-14 |
| CN114629457B true CN114629457B (en) | 2024-10-11 |
Family
ID=81898358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111654042.3A Active CN114629457B (en) | 2021-12-30 | 2021-12-30 | Device and method for controlling frequency source and frequency source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114629457B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841901A (en) * | 2009-12-30 | 2010-09-22 | 中国科学院电子学研究所 | Closed-loop automatic gain automatic control device and method for radio-frequency channel |
| CN104734656A (en) * | 2013-12-24 | 2015-06-24 | 苏州普源精电科技有限公司 | Radio frequency signal source with amplitude modulation and automatic level control functions |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000183762A (en) * | 1998-12-14 | 2000-06-30 | Nec Corp | Transmission power control circuit, its control method and transmitter |
| CN100473996C (en) * | 2005-05-13 | 2009-04-01 | 大唐移动通信设备有限公司 | Apparatus for detecting linear index of power amplifier |
| US8737941B2 (en) * | 2010-03-30 | 2014-05-27 | Skyworks Solutions, Inc. | Gain control systems and methods for controlling an adjustable power level |
| WO2011123100A1 (en) * | 2010-03-30 | 2011-10-06 | Skyworks Solutions, Inc. | Gain control systems and methods for controlling an adjustable power level |
| CN106603168B (en) * | 2016-11-14 | 2020-09-22 | 南京熊猫电子股份有限公司 | Transmitter ALC design universal test platform and test method |
| CN110716182A (en) * | 2018-07-11 | 2020-01-21 | 同方威视技术股份有限公司 | Intelligent automatic frequency control equipment based on digital control |
| CN109412989B (en) * | 2018-12-24 | 2021-10-22 | 北京无线电计量测试研究所 | Open-loop amplitude control method and device for millimeter wave agile signal |
| CN210273980U (en) * | 2019-10-12 | 2020-04-07 | 四川中久防务科技有限公司 | Monitoring system based on power amplifier |
| CN112636713A (en) * | 2020-12-14 | 2021-04-09 | 上海创远仪器技术股份有限公司 | Circuit structure suitable for realizing radio frequency gain automatic switching control at receiving end of vector network analyzer |
| CN112737618B (en) * | 2020-12-24 | 2022-04-12 | 深圳市鼎阳科技股份有限公司 | Temperature compensation method for radio frequency receiver |
-
2021
- 2021-12-30 CN CN202111654042.3A patent/CN114629457B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841901A (en) * | 2009-12-30 | 2010-09-22 | 中国科学院电子学研究所 | Closed-loop automatic gain automatic control device and method for radio-frequency channel |
| CN104734656A (en) * | 2013-12-24 | 2015-06-24 | 苏州普源精电科技有限公司 | Radio frequency signal source with amplitude modulation and automatic level control functions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114629457A (en) | 2022-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6031421A (en) | Controlled gain amplifier with variable control exponent | |
| EP0720287B1 (en) | Wide dynamic range power amplifier | |
| EP2555424B1 (en) | Automatic step variable attenuator and radio communication device | |
| CN213521865U (en) | Frequency conversion receiving system | |
| JP2000286652A (en) | Control device | |
| CN115473524A (en) | Automatic level control's agile frequency source | |
| CN113504742A (en) | Double-fed automatic level control system based on FPGA | |
| US11031912B2 (en) | Self-optimising RF amplifier | |
| CN210297644U (en) | Receiving frequency converter | |
| CN206602512U (en) | A kind of frequency hopping receives channel fast gain control system | |
| CN114629457B (en) | Device and method for controlling frequency source and frequency source | |
| CN109412989B (en) | Open-loop amplitude control method and device for millimeter wave agile signal | |
| CN110958026B (en) | Radio frequency broadband transceiver | |
| CN115567070B (en) | Front end assembly capable of self-adapting to instantaneous dynamic expansion | |
| US8223900B2 (en) | Receiver with mixed-mode automatic gain control | |
| RU2778438C1 (en) | Automatic gain control device | |
| EP0456921A1 (en) | Attenuator | |
| CN112187189A (en) | Radio frequency amplifying circuit of dynamic adjustment | |
| RU2817198C1 (en) | Automatic gain control device | |
| EP1932234A2 (en) | System and method for increasing accuracy of transmitter power detection over a larger range of output power levels | |
| CN112688700B (en) | Multichannel low-power consumption broadband receiver | |
| CN217824949U (en) | X-waveband frequency conversion receiving assembly | |
| CN215773112U (en) | UV wave band signal processing module | |
| CN115801149B (en) | Receiver pre-selector calibration method, system, electronic equipment and storage medium | |
| JPH06152288A (en) | Power controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |