CN217467188U - Small GNSS signal interference source power amplifier capable of automatically controlling output power - Google Patents
Small GNSS signal interference source power amplifier capable of automatically controlling output power Download PDFInfo
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- CN217467188U CN217467188U CN202220013158.2U CN202220013158U CN217467188U CN 217467188 U CN217467188 U CN 217467188U CN 202220013158 U CN202220013158 U CN 202220013158U CN 217467188 U CN217467188 U CN 217467188U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The utility model discloses a small GNSS signal interference source power amplifier capable of automatically controlling output power, which comprises a signal input terminal, a power control module, a power amplifier, a signal output terminal, a feedback adjusting module and a power amplifier state acquisition module, wherein the signal input terminal inputs original radio-frequency signals, the power amplifier amplifies the power of the original radio-frequency signals, the interference signals after the output power of the signal output terminal is amplified, a temperature compensation attenuator is arranged in the power control module to compensate the temperature characteristic of the power amplifier, the feedback adjusting module adjusts the attenuation value of an automatic gain control attenuator according to the output power of the power amplifier to ensure the stability of the output power of the rear end, the problem that the output power is reduced along with the increase of the temperature and the working time is solved, the power amplifier state acquisition module acquires and outputs the working state information of the power amplifier in real time, and can intuitively judge the fault position, and the detection and the maintenance are convenient.
Description
Technical Field
The utility model relates to a signal interference source power amplifier field, specificly relate to an automatic control output's small-size GNSS signal interference source power amplifier.
Background
Currently, GNSS navigation has been successfully applied to a plurality of fields, and there has been a corresponding development in the field of navigation interference in electronic countermeasure, so that electronic interference, which reduces the efficiency of use of an enemy radio navigation positioning system or completely fails, is mainly suppressed navigation interference and deceptive navigation interference. The suppressive navigation interference is to emit a high-power interference signal, so that the navigation positioning signal can not be received by the navigation receiving equipment of enemy airplanes, ships, missiles or fighters in a certain area. The deceptive navigation interference is that an enemy navigation positioning signal is received and is retransmitted through correlation transformation, so that the enemy receives a fake navigation signal to generate wrong actions, and cannot carry out a predetermined combat mission. No matter the suppression type or deception type navigation interference needs to amplify signals, the existing GNSS power amplifier is simple in design, the output power of the power amplifier is reduced along with the increase of temperature and working time, and the working state of the power amplifier cannot be acquired in real time, so that the fault position cannot be judged visually, and the detection and the maintenance are inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an automatic control output's small-size GNSS signal interference source power amplifier can solve the power amplifier and lead to judging the trouble place directly perceivedly along with the operating condition that temperature and operating time increase and output decline and can not gather the power amplifier in real time, detects and the inconvenient problem of maintenance.
According to the utility model discloses automatic small-size GNSS signal interference source power amplifier of control output, include: a signal input terminal for receiving an original radio frequency signal; the power control module comprises a temperature compensation attenuator and an automatic gain control attenuator, the input end of the temperature compensation attenuator is connected with the signal input terminal, and the output end of the temperature compensation attenuator is connected with the input end of the automatic gain control attenuator; the input end of the power amplifier is connected with the output end of the automatic gain control attenuator; the signal output terminal is connected with the output end of the power amplifier so as to output the interference signal after power amplification; the input end of the feedback adjusting module is connected with the output end of the power amplifier, and the output end of the feedback adjusting module is connected with the control end of the automatic gain control attenuator so as to adjust the attenuation value of the automatic gain control attenuator according to the change of the output power of the power amplifier to ensure the stability of the output power of the rear end; and the power amplifier state acquisition module is used for acquiring and outputting power amplifier working state information.
According to the utility model discloses automatic control output's small-size GNSS signal interference source power amplifier has following technological effect at least: the utility model discloses the embodiment passes through the original radio frequency signal of signal input terminal input, power amplifier amplifies the power of original radio frequency signal, interfering signal after signal output terminal output power is amplified, set up the temperature characteristic that the temperature compensation attenuator comes compensation power amplifier in power control module, feedback adjusting module adjusts the attenuation value of automatic gain control attenuator according to power amplifier's output, guarantee rear end output's stability, the problem that output descends along with temperature and operating time increase has been solved, power amplifier state acquisition module gathers and output power amplifier's operating condition information in real time, can judge the trouble place directly perceivedly, be convenient for detect and maintain.
According to the utility model discloses a some embodiments, power amplifier state acquisition module includes ADC, temperature sensor, power detection circuitry, voltage detection circuitry and current detection circuitry, and the ADC is used for exporting power amplifier operating condition information, and temperature sensor is used for detecting power amplifier's temperature, and power detection circuitry is used for detecting power amplifier's output, and voltage detection circuitry is used for detecting power amplifier's voltage, and current detection circuitry is used for detecting power amplifier's electric current.
According to the utility model discloses a some embodiments, the ADC includes first ADC and second ADC, and temperature sensor and power detection circuit are connected respectively to the analog input of first ADC, and voltage detection circuit and current detection circuit are connected respectively to the analog input of second ADC.
According to some embodiments of the utility model, the feedback adjustment module includes wave detector and voltage control chip, and power amplifier's output is connected to the input of wave detector, and voltage control chip's input is connected to the output of wave detector, and automatic gain control attenuator's control end is connected to voltage control chip's output.
According to the utility model discloses a some embodiments are provided with the isolator between power amplifier and the signal output terminal, and power amplifier's output is connected to the input of isolator, and the signal output terminal is connected to the output of isolator.
According to the utility model discloses a some embodiments are provided with first filter module between signal input terminal and the temperature compensation attenuator, and signal input terminal is connected to first filter module's input, and temperature compensation attenuator's input is connected to first filter module's output.
According to the utility model discloses a some embodiments are provided with signal amplifier between temperature compensation attenuator and the automatic gain control attenuator, and temperature compensation attenuator's output is connected to signal amplifier's input, and automatic gain control attenuator's input is connected to signal amplifier's output.
According to the utility model discloses a some embodiments are provided with second filtering module between signal amplifier and the automatic gain control attenuator, and signal amplifier's output is connected to second filtering module's input, and automatic gain control attenuator's input is connected to second filtering module's output.
According to some embodiments of the invention, the temperature compensated attenuator is of the type RFSA 4023.
According to some embodiments of the invention, the power amplifier has a model of ADL 5606.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a functional block diagram of the present invention;
fig. 2 is a circuit diagram of a power control module according to the present invention;
fig. 3 is a circuit diagram of the power amplifier of the present invention;
FIG. 4 is a circuit diagram of a detector according to the present invention;
fig. 5 is a circuit diagram of the voltage control chip of the present invention;
fig. 6 is a circuit diagram of an ADC of the present invention;
fig. 7 is a circuit diagram of the current detection circuit of the present invention;
fig. 8 is a circuit diagram of the DC-DC power module of the present invention.
Reference numerals:
the power amplifier comprises a signal input terminal 100, a power control module 200, a signal output terminal 300, a feedback regulation module 400 and a power amplifier state acquisition module 500.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the positional descriptions, such as the directions or positional relationships indicated by the upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
A small GNSS signal interference source power amplifier for automatically controlling output power according to an embodiment of the present invention is described with reference to fig. 1 to 8.
As shown in fig. 1, a small GNSS signal interference source power amplifier for automatically controlling output power includes: the power amplifier comprises a signal input terminal 100, a power control module 200, a power amplifier U6, a signal output terminal 300, a feedback regulation module 400 and a power amplifier state acquisition module 500.
As shown IN fig. 2, the signal input terminal 100 receives an original rf signal, the signal input terminal 100 is connected to the pin IN of the first filter module U2, the power control module 200 includes a temperature-compensated attenuator U1 and an automatic gain control attenuator U4, the pin OUT of the first filter module U2 is connected to the pin RFIN of the temperature-compensated attenuator U1, the pin RFOUT of the temperature-compensated attenuator U1 is connected to the pin RFIN of the signal amplifier U5, the pin RFOUT of the signal amplifier U5 is connected to the pin IN of the second filter module U3, the pin OUT of the second filter module is connected to the pin RFIN of the automatic gain control attenuator U4, as shown IN fig. 2 to 3, the pin RFOUT of the automatic gain control attenuator U4 is connected to the pin RFIN of the power amplifier U6, the pin OUT of the power amplifier U6 is connected to the pin IN of the isolator U7, the pin OUT of the isolator is connected to the signal output terminal 300, the signal output terminal 300 outputs an interference signal after power amplification, as shown in fig. 8, the DC-DC power module converts 12V voltage into 5V voltage to supply power to the temperature compensation attenuator U1, the signal amplifier U5, the automatic gain control attenuator U4 and the power amplifier U6.
The first filtering module U2 is a surface acoustic wave filter, which filters out the out-of-band noise of the original rf signal, and may also be a ceramic filter. The model of the temperature compensation attenuator U1 is RFSA4023, the temperature characteristic of the power amplifier U6 is compensated, and the temperature compensation attenuator U1 can be configured to set different temperature compensation attenuation slopes through mode configuration so as to adapt to different working scenes. The signal amplifier U5, model ADL5320, amplifies the signal to meet the input signal power requirement of the power amplifier U6. The second filtering module U3 is a saw filter, which filters out the out-of-band noise of the signal amplified by the signal amplifier U5, and may also be a ceramic filter. The model of the power amplifier U6 is ADL5606, the integrated level is higher, and the peripheral circuit is simple relatively, can realize the stable output of 1W signal, can be applied to the test scene that needs small-size interference signal, satisfies the demand of GNSS receiver product acceptance, capability test and experiment. Isolator U7 may reduce interference from other devices in the circuit.
As shown IN fig. 4 to 5, the feedback regulation module 400 includes a detector U8 and a voltage control chip U9, a pin RFIN of the detector U8 is connected to pins RFOUT1, RFOUT2, RFOUT3 and RFOUT4 of the power amplifier U6, a pin VRMS of the detector U8 is connected to a pin-IN of the voltage control chip U9, a pin Vout of the voltage control chip U9 is connected to a pin VC of the automatic gain control attenuator U4, the detector U8 detects the output power of the power amplifier U6, the voltage control chip U9 adjusts the output control voltage according to a set reference voltage when the output power of the power amplifier U6 changes, so as to change the attenuation value of the automatic gain control attenuator U4, thereby ensuring the stability of the rear-end output power, and the detector U8 is an RMS detector.
As shown in fig. 6 to 7, the power amplifier state collecting module 500 includes an ADC, a temperature sensor, a power detection circuit, a voltage detection circuit and a current detection circuit, the main control unit is connected to the ADC through an SPI interface, the ADC includes a first ADCU10 and a second ADCU11, analog input terminals AIN0 and AIN1 of the first ADCU10 are respectively connected to output terminals of the temperature sensor and the power detection circuit, the temperature sensor detects the temperature of the power amplifier, an input terminal of the power detection circuit is connected to a detector U8 and detects the output power of the power amplifier U6 through a detector U8, analog input terminals AIN0 and AIN1 of the second ADCU11 are respectively connected to an output terminal of the voltage detection circuit and a pin OUT of the current detection circuit, an input terminal of the voltage detection circuit is connected to a VCC _5.0V interface of the DC-DC power supply module, an allowable input voltage range of the second ADC is 0-2.5V, the voltage detection circuit divides a voltage of about 2.1V to be input to a pin AIN0 of the second ADC, the final power amplifier voltage is obtained through proportion calculation, a pin + IN of the current detection circuit is connected with a filter through a VCC _ PA interface and is connected with a VCC _5.0V interface of a power amplifier U6 through the filter, the current of the power amplifier U6 is detected, the collected temperature value, the output power value, the voltage value and the current value of the power amplifier U6 are reported to the main control unit through a software protocol by the first ADC and the second ADC IN real time, whether the working state of the power amplifier is abnormal or not is judged, and when the value fluctuates IN a large range, the fault is judged. The first ADCU10 and the second ADCU11 are micro-power, dual-channel, 125kSPS and 12-bit ADCs, and a single multi-channel ADC may be used to connect the temperature sensor, the power detection circuit, the current detection circuit and the voltage detection circuit.
To sum up, the utility model provides an automatic control output's small-size GNSS signal interference source power amplifier passes through the original radio frequency signal of signal input terminal 100 input, power amplifier U6 amplifies the power of original radio frequency signal, the interference signal after signal output terminal 300 output power enlargies, set up temperature compensation attenuator U1 in power control module 200 and compensate power amplifier U6's temperature characteristic, feedback regulation module 400 adjusts the attenuation value of automatic gain control attenuator U4 according to power amplifier U6's output power, guarantee rear end output's stability, the problem that output power descends along with temperature and operating time increase has been solved, power amplifier state acquisition module 500 gathers and output power amplifier U6's operating condition information in real time, can judge the trouble place directly perceivedly, be convenient for detect and maintain.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. The utility model provides a small-size GNSS signal interference source power amplifier of automatic control output power which characterized in that includes:
a signal input terminal (100), the signal input terminal (100) for receiving an original radio frequency signal;
the power control module (200), the power control module (200) includes a temperature compensation attenuator and an automatic gain control attenuator, the input end of the temperature compensation attenuator is connected with the signal input terminal (100), and the output end of the temperature compensation attenuator is connected with the input end of the automatic gain control attenuator;
the input end of the power amplifier is connected with the output end of the automatic gain control attenuator;
a signal output terminal (300), wherein the signal output terminal (300) is connected with the output end of the power amplifier so as to output the interference signal after power amplification;
the input end of the feedback adjusting module (400) is connected with the output end of the power amplifier, and the output end of the feedback adjusting module (400) is connected with the control end of the automatic gain control attenuator so as to adjust the attenuation value of the automatic gain control attenuator according to the change of the output power of the power amplifier to ensure the stability of the rear-end output power;
the power amplifier state acquisition module (500), the power amplifier state acquisition module (500) is used for gathering and outputting power amplifier operating condition information.
2. The small GNSS signal interference source power amplifier of automatically controlling output power according to claim 1, wherein: the power amplifier state acquisition module (500) comprises an ADC (analog to digital converter), a temperature sensor, a power detection circuit, a voltage detection circuit and a current detection circuit, wherein the ADC is used for outputting the power amplifier working state information, the temperature sensor is used for detecting the temperature of the power amplifier, the power detection circuit is used for detecting the output power of the power amplifier, the voltage detection circuit is used for detecting the voltage of the power amplifier, and the current detection circuit is used for detecting the current of the power amplifier.
3. The small GNSS signal interference source power amplifier of automatically controlling output power according to claim 2, wherein: the ADC comprises a first ADC and a second ADC, the analog input end of the first ADC is connected with the temperature sensor and the power detection circuit respectively, and the analog input end of the second ADC is connected with the voltage detection circuit and the current detection circuit respectively.
4. The small GNSS signal interference source power amplifier of automatically controlling output power according to claim 1, wherein: the feedback adjusting module (400) comprises a detector and a voltage control chip, wherein the input end of the detector is connected with the output end of the power amplifier, the output end of the detector is connected with the input end of the voltage control chip, and the output end of the voltage control chip is connected with the control end of the automatic gain control attenuator.
5. The small GNSS signal interferer power amplifier of claim 1, further comprising: an isolator is arranged between the power amplifier and the signal output terminal (300), the input end of the isolator is connected with the output end of the power amplifier, and the output end of the isolator is connected with the signal output terminal (300).
6. The small GNSS signal interference source power amplifier of automatically controlling output power according to claim 1, wherein: a first filtering module is arranged between the signal input terminal (100) and the temperature compensation attenuator, the input end of the first filtering module is connected with the signal input terminal (100), and the output end of the first filtering module is connected with the input end of the temperature compensation attenuator.
7. The small GNSS signal interference source power amplifier of automatically controlling output power according to claim 1, wherein: a signal amplifier is arranged between the temperature compensation attenuator and the automatic gain control attenuator, the input end of the signal amplifier is connected with the output end of the temperature compensation attenuator, and the output end of the signal amplifier is connected with the input end of the automatic gain control attenuator.
8. The small GNSS signal interference source power amplifier of automatically controlling output power of claim 7, wherein: and a second filtering module is arranged between the signal amplifier and the automatic gain control attenuator, the input end of the second filtering module is connected with the output end of the signal amplifier, and the output end of the second filtering module is connected with the input end of the automatic gain control attenuator.
9. The small GNSS signal interference source power amplifier of automatically controlling output power according to claim 1, wherein: the model of the temperature compensation attenuator is RFSA 4023.
10. The small GNSS signal interference source power amplifier of automatically controlling output power according to claim 1, wherein: the model of the power amplifier is ADL 5606.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220013158.2U CN217467188U (en) | 2022-01-04 | 2022-01-04 | Small GNSS signal interference source power amplifier capable of automatically controlling output power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220013158.2U CN217467188U (en) | 2022-01-04 | 2022-01-04 | Small GNSS signal interference source power amplifier capable of automatically controlling output power |
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| CN217467188U true CN217467188U (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220013158.2U Active CN217467188U (en) | 2022-01-04 | 2022-01-04 | Small GNSS signal interference source power amplifier capable of automatically controlling output power |
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- 2022-01-04 CN CN202220013158.2U patent/CN217467188U/en active Active
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