High-power microwave power probe device

Abstract

The utility model relates to a high-power microwave power probe device, which comprises a shell, one end of the shell is provided with a microwave input interface, and the other end of the shell is provided with a data conversion interface; a self-adaptive adjustable attenuation system is arranged in the shell and is used for detecting and attenuating a high-power microwave radio-frequency signal input by the microwave input interface; the detection circuit system is used for converting a detected radio frequency microwave signal into an electric signal; the broadband power amplification system is used for amplifying the signal detected by the detection circuit system; and the signal processing system is used for processing the amplified radio frequency microwave electric signal and sending data to a microwave power meter or a PC (Personal Computer) through a data conversion interface so as to calculate and display a measured power value. According to the utility model, the self-adaptive adjustable attenuation system is additionally arranged at the microwave input interface, and the input high-power microwave radio frequency signal is attenuated and then transmitted to the signal processing system, so that the measurement range of the microwave signal power is expanded, and the microwave signal detection under high power is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the microwave technology measuring instrument field especially is a kind of high-power microwave power probe device. BACKGROUND

[0002] Microwave power measurement has important application value in modern science and technology field, is widely used in radar system, communication system, aerospace etc. Microwave power measurement has fast speed, high precision, wide measurement range, frequency band width etc. advantage, can provide key parameter support and performance evaluation basis for these fields. However, the common microwave power probe on the market is limited in power range when detecting high-power microwave signal, when the input microwave signal power exceeds the rated power of probe, it is easy to cause probe overload, thereby affecting the accuracy and stability of measurement, this limited power detection range limits the use of probe in high-power application occasions, such as high-power radar system, high-power communication equipment etc., cannot meet the demand of these high-power applications to microwave power measurement. SUMMARY

[0003] Therefore, the utility model wants to overcome the technical problems in the prior art, provide a kind of high-power microwave power probe device, by increasing adaptive adjustable attenuation system in microwave input interface, the input high-power microwave radio frequency signal is attenuated and handled and then transmitted to signal processing system, expands the measurement range of microwave signal power, realizes the microwave signal detection under high power.

[0004] To solve the above technical problems, the utility model provides a kind of high-power microwave power probe device, including: including shell, the one end of the shell is equipped with microwave input interface, the other end of the shell is equipped with data conversion interface;The shell is equipped with:

[0005] Adaptive adjustable attenuation system is used to detect and attenuate the high-power microwave radio frequency signal input by the microwave input interface;

[0006] Detection circuit system is used to convert the detected radio frequency microwave signal into electrical signal;

[0007] Broadband power amplification system is used to amplify the signal after detection by detection circuit system;

[0008] Signal processing system is used to process the amplified radio frequency microwave electrical signal, and the signal processing system sends data to microwave power meter or PC through the data conversion interface to calculate and display measured power value.

[0009] In an embodiment of the utility model, the self-adaptive adjustable attenuation system includes power detection module, control module and adjustable attenuator, power detection module is used for real -time monitoring the power of input high power microwave radio frequency signal and converts power signal into electric signal output, control module is used for receiving electric signal of power detection module output, calculates the attenuation amount required, and generates control signal, adjustable attenuator is used for according to the control signal that control module sent, attenuates high power microwave radio frequency signal.

[0010] In an embodiment of the utility model, the detection circuit system includes a detection element, which is used for converting a microwave radio frequency signal into an electric signal.

[0011] In an embodiment of the utility model, the wideband amplification system includes a plurality of cascaded amplifiers, a filter, a power control module and an amplifier control module, the amplifier is used for amplifying the input radio frequency microwave signal to realize the required gain, the filter is used for filtering out the noise and interference signal that may be generated in the amplification process, and the purity of the signal is improved, the power control module is used for providing stable power supply for the plurality of cascaded amplifiers, and the amplifier control module is used for adjusting the working state of the amplifier to adapt to different measurement requirements.

[0012] In an embodiment of the utility model, it further includes an automatic zero calibration system for automatically calibrating the measurement error of the probe and eliminating the zero drift that may occur after long time use of the probe under different environmental conditions.

[0013] In an embodiment of the utility model, the automatic zero calibration system includes a zero calibration sensor, a zero calibration control module and a correction execution module, the zero calibration sensor is used for detecting the initial zero point state of the probe, the zero calibration control module calculates the zero calibration compensation value according to the zero point state detected by the zero calibration sensor, and generates the corresponding zero calibration control signal, and the correction execution module automatically adjusts the zero point state of the probe according to the control signal sent by the zero calibration control module.

[0014] In an embodiment of the utility model, it further includes a temperature compensation system for detecting the environmental temperature and feeding back to the signal processing system, and the signal processing system compensates the detected signal according to the received temperature signal, and eliminates the influence of temperature change on the microwave power measurement result.

[0015] In an embodiment of the utility model, the temperature compensation system includes a temperature sensor and a signal conditioning circuit, the temperature sensor is used for monitoring the environmental temperature where the probe is located, and the signal conditioning circuit is used for amplifying and filtering the signal output by the temperature sensor and then transmitting to the signal processing system.

[0016] In one embodiment of this utility model, a storage system is further included, connected to the signal processing system, for storing the probe's serial number, calibration factor, linearity, temperature, and bandwidth correction data. The storage system updates the data based on the results of each zeroing, so that the probe does not need to be zeroed multiple times under the same environment.

[0017] In one embodiment of this utility model, the storage system includes a storage medium and a data management module. The storage medium is used to store data of the signal processing system, and the data management module is used to manage and control the data in the storage medium.

[0018] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0019] This invention discloses a high-power microwave power probe device. By adding an adaptive adjustable attenuation system to the RF input port, the system attenuates the signal according to the received RF power value. After passing through the adaptive adjustable attenuation system, the RF signal is transmitted to a detection circuit system. The detection circuit system converts the detected RF microwave signal into an electrical signal and transmits it to a broadband power amplification system for amplification. The broadband power amplification system then sends the amplified RF microwave electrical signal to a signal processing system for further processing. Through the aforementioned adaptive adjustable attenuation system, the device can detect high-power microwave RF signals. Compared to traditional microwave power probes, the input RF power of this device can be increased by 20dB, thus significantly expanding the microwave power measurement range. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the high-power microwave probe device in a preferred embodiment of the present invention;

[0022] Figure 2 for Figure 1 The diagram shows the principle block diagram of a high-power microwave probe device.

[0023] Explanation of reference numerals in the accompanying drawings: 1. Housing; 11. Adaptive adjustable attenuation system; 12. Detection circuit system; 13. Broadband power amplifier system; 14. Signal processing system; 15. Automatic zeroing system; 16. Temperature control compensation system; 17. Storage system; 2. Microwave input interface; 3. Data conversion interface. Detailed Implementation

[0024] The utility model is further described below in combination with the drawings and specific embodiments, so that those skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0025] Referring to Figures 1-2 The utility model discloses a high power microwave power probe device, including: including the casing 1, the casing one end is equipped with microwave input interface 2, the casing 1 other end is equipped with data conversion interface 3, the casing 1 is equipped with:

[0026] Adaptive adjustable attenuation system 11 for detecting and attenuating the high power microwave radio frequency signal of the microwave input interface 2 input;

[0027] Detection circuit system 12 for converting the detected radio frequency microwave signal into an electrical signal;

[0028] Broadband power amplification system 13 for amplifying the signal sent by detection circuit system 12;

[0029] Signal processing system 14 for processing the amplified radio frequency microwave electrical signal, the signal processing system 14 sends data to the microwave power meter or PC through the data conversion interface 3 to carry out the measured power value calculation and display.

[0030] Among them, the adaptive adjustable attenuation system 11 includes power detection module, control module and adjustable attenuator, the power detection module is used to monitor the power of the input high power microwave radio frequency signal in real time and converts the power signal into electrical signal output;The control module is used to receive the electrical signal output by the power detection module, calculates the required attenuation amount, and generates a control signal;The adjustable attenuator is used to attenuate the high power microwave radio frequency signal according to the control signal sent by the control module.

[0031] The adaptive adjustable attenuation system 11 can automatically adjust the attenuation amount according to the received radio frequency power value, without manual intervention, realizing fast response and automatic adjustment, and this kind of adaptive adjustment mechanism greatly improves the measurement efficiency, shortens the measurement time, so that the user can obtain the measurement result more quickly, improves the work efficiency.

[0032] The detection circuit system 12 includes a detection element, and the detection element is used to convert the microwave radio frequency signal into an electrical signal.

[0033] The wideband power amplification system 13 includes a plurality of cascaded amplifiers, filters, power control modules and amplifier control modules. The amplifiers are used to amplify the input radio frequency microwave signal to achieve the required gain. The filters are used to filter out noise and interference signals generated during amplification, improving the purity of the signal. The power control module is used to provide stable power supply for the plurality of cascaded amplifiers. The amplifier control module is used to adjust the working state of the amplifier to adapt to different measurement requirements. The wideband power amplification system 13 effectively amplifies the electrical signal converted by the detection circuit system 12, ensures that the signal is not distorted during transmission and processing, which helps to improve the signal-to-noise ratio of the signal, thereby improving the measurement accuracy and making the measurement result of the microwave power more accurate.

[0034] The automatic zero calibration system 15 is also included for automatically calibrating the measurement error of the probe and eliminating the zero drift that may occur in different environmental conditions or after long-term use. The automatic zero calibration system 15 includes a zero calibration sensor, a zero calibration control module and a correction execution module. The zero calibration sensor is used to detect the initial zero point state of the probe. The zero calibration control module calculates the zero calibration compensation value according to the zero point state detected by the zero calibration sensor and generates a corresponding zero calibration control signal. The correction execution module automatically adjusts the zero point state of the probe according to the control signal issued by the zero calibration control module. The automatic zero calibration system can automatically perform zero calibration operation before each measurement, ensuring the consistency of the initial state of the probe and avoiding errors caused by manual zero calibration.

[0035] The temperature compensation system 16 is also included for detecting the environmental temperature and feeding back to the signal processing system. The signal processing system compensates the detected signal according to the received temperature signal to eliminate the influence of temperature change on the measurement result of the microwave power. This real-time temperature compensation mechanism makes the measurement result not affected by the fluctuation of environmental temperature, enhances the stability of the measurement and ensures stable measurement results under different environmental conditions.

[0036] The signal processing system 14 can efficiently process the detected electrical signal and quickly transmit the data to the microwave power meter or PC through the data conversion interface 3 for calculation and display. This efficient data processing and transmission mechanism makes the measurement process more smooth, improving the efficiency and convenience of the measurement.

[0037] The temperature compensation system 16 includes a temperature sensor and a signal conditioning circuit. The temperature sensor is used to monitor the environmental temperature of the probe. The signal conditioning circuit is used to amplify and filter the signal output by the temperature sensor and transmit it to the signal processing system.

[0038] Also included is a storage system 17, connected to the signal processing system 14, for storing the serial number, calibration factor, linearity, temperature and bandwidth correction data of the probe, said storage system being updated with data after each zeroing, so that the probe does not need to be zeroed multiple times in the same environment.

[0039] The storage system 17 comprises a storage medium for storing data of the signal processing system and a data management module for managing and controlling the data in the storage medium.

[0040] Obviously, the above embodiments are only examples for the purpose of clarity, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can also be made by those of ordinary skill in the art. Here, it is not necessary and impossible to exhaust all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A high power microwave power probe device, characterized by: The application relates to a microwave power meter. The microwave power meter comprises a shell, one end of the shell is provided with a microwave input interface, the other end of the shell is provided with a data conversion interface, and the shell is internally provided with: an adaptive adjustable attenuation system which is used for detecting and attenuating high-power microwave radio frequency signals input from the microwave input interface; a detection circuit system which is used for converting the detected radio frequency microwave signals into electric signals; a wideband power amplification system which is used for amplifying the signals after detection by the detection circuit system; a signal processing system which is used for processing the amplified radio frequency microwave electric signals, and the signal processing system sends data to a microwave power meter or a PC through the data conversion interface to perform calculation and display.

2. A high power microwave power probe device according to claim 1, characterized in that: The adaptive adjustable attenuation system comprises a power detection module, a control module and an adjustable attenuator, the power detection module is used for monitoring the power of the input high-power microwave radio frequency signals in real time and converting the power signals into electric signals for output, the control module is used for receiving the electric signals output from the power detection module, calculating the required attenuation amount and generating a control signal, and the adjustable attenuator is used for attenuating the high-power microwave radio frequency signals according to the control signal generated by the control module.

3. A high power microwave power probe device according to claim 2, characterized in that: The detection circuit system comprises a detection element which is used for converting the microwave radio frequency signals into electric signals.

4. A high power microwave power probe device according to claim 3, characterized in that: The wideband power amplification system comprises a plurality of cascade amplifiers, a filter, a power supply control module and an amplifier control module, the amplifiers are used for amplifying the input radio frequency microwave signals to achieve the required gain, the filter is used for filtering noise and interference signals possibly generated in the amplification process and improving the purity of the signals, the power supply control module is used for providing stable power supply for the plurality of cascade amplifiers, and the amplifier control module is used for adjusting the working state of the amplifiers to adapt to different measurement requirements.

5. A high power microwave power probe device according to claim 1, characterized in that: The microwave power meter further comprises an automatic zero calibration system which is used for automatically calibrating the measurement error of a probe and eliminating the zero point drift of the probe possibly generated under different environmental conditions or after long-time use.

6. A high power microwave power probe device according to claim 5, characterized in that: The automatic zero calibration system comprises a zero calibration sensor, a zero calibration control module and a correction execution module, the zero calibration sensor is used for detecting the initial zero point state of the probe, the zero calibration control module calculates a zero calibration compensation value according to the zero point state detected by the zero calibration sensor and generates a corresponding zero calibration control signal, and the correction execution module automatically adjusts the zero point state of the probe according to the control signal generated by the zero calibration control module.

7. A high power microwave power probe device according to claim 6, characterized in that: The microwave power meter further comprises a temperature compensation system which is used for detecting the environmental temperature and feeding back to the signal processing system, and the signal processing system compensates the detected signals according to the received temperature signals to eliminate the influence of temperature change on the microwave power measurement results.

8. A high power microwave power probe device according to claim 7, characterized in that: The temperature compensation system comprises a temperature sensor and a signal conditioning circuit, the temperature sensor is used for monitoring the environmental temperature of the probe, and the signal conditioning circuit is used for amplifying and filtering the signals output by the temperature sensor and then transmitting the signals to the signal processing system.

9. A high power microwave power probe device according to claim 8, characterized in that: The microwave power meter further comprises a storage system which is used for storing the serial number, calibration factor, linearity, temperature and bandwidth correction data of the probe, and the storage system updates the data according to the results after each zero calibration, so that the probe does not need to be calibrated for many times under the same environment.

10. A high power microwave power probe device according to claim 9, characterized in that: The storage system comprises a storage medium for storing data of the signal processing system and a data management module for managing and controlling the data in the storage medium.

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