CN209805784U - pulse power calibration device - Google Patents
pulse power calibration device Download PDFInfo
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- CN209805784U CN209805784U CN201920308052.3U CN201920308052U CN209805784U CN 209805784 U CN209805784 U CN 209805784U CN 201920308052 U CN201920308052 U CN 201920308052U CN 209805784 U CN209805784 U CN 209805784U
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Abstract
The utility model provides a pulse power calibrating device utilizes pulse power amplitude stabilized controller to establish low reflection coefficient's equivalent signal source, according to the envelope sampling principle of pulse power amplitude stabilized controller, at first with pulse modulation signal and continuous wave signal, through oscilloscope detection, the sampling of high-speed sample hold circuit, and high accuracy comparator is than enlargiing, guarantees that pulse modulation signal peak power is the same with continuous wave power amplitude. And measuring the continuous wave power amplitude through a standard continuous wave power meter to determine the peak power of the pulse modulation signal so as to realize the calibration of the pulse power sensor in a pulse power state.
Description
Technical Field
the utility model relates to a pulse power calibration device
background
among radio parameters, power is a very important parameter. According to the existing calibration rule of the pulse power meter, the current method for calibrating the calibration factor of the pulse power sensor is mainly carried out in a continuous wave state, and the method only reflects the actual performance of the pulse power sensor in the continuous wave state. In fact, after the continuous wave signal is pulse-modulated, the actually output power is changed, and simultaneously, due to the fact that the impedance of the signal source is not matched with that of the pulse power sensor, inaccuracy is caused when the pulse power sensor is calibrated.
SUMMERY OF THE UTILITY MODEL
an object of the utility model is to provide a pulse power calibrating device.
In order to solve the above problem, the utility model provides a pulse power calibration device, include:
a pulse signal generator;
The microwave signal source and the pulse power amplitude stabilizing controller are connected with each other, and the pulse power amplitude stabilizing controller is connected with the test end face;
And the precise voltage source and the oscilloscope are respectively connected with the pulse power amplitude-stabilizing controller.
Further, in the pulse power calibration device, the pulse signal generator is configured to output two paths of identical pulse signals, where one path is loaded to the microwave signal source, and output of the pulse modulation signal is realized through an external modulation function of a pulse modulation module of the microwave signal source; and the other path of the pulse envelope signal is loaded to a peak detector through a power divider of the pulse power amplitude-stabilizing controller, and a pulse envelope signal is output.
Furthermore, in the pulse power calibration device, a high-speed switch is added between a high-speed sampling and holding circuit of the pulse amplitude stabilizing controller and the peak detector to monitor the pulse signal by using an oscilloscope, the high-speed sampling and holding circuit samples the pulse signal under the synchronous action of the other path of pulse signal of the pulse signal generator, the sampling amplitude is compared with the voltage value of the precise voltage source, and the amplitude of the microwave signal source is controlled by using a comparison signal.
Further, in the above pulse power calibration apparatus, the pulse power amplitude controller includes:
The power divider comprises a comparison circuit, a drive circuit, a microwave signal source and a power divider which are connected in sequence, wherein the power divider is connected with a test port;
The pulse signal generator is connected with the microwave signal source;
the circuit comprises a precision voltage source, a reverse circuit and a first sampling and holding circuit which are connected in sequence, wherein the first sampling and holding circuit is connected with the comparison circuit;
the sampling circuit comprises a first electronic switch and a second sampling and holding circuit which are connected in sequence, wherein the second sampling and holding circuit is connected with the electronic switch;
The first amplifier and the second amplifier are respectively connected with the first electronic switch;
The second electronic switch is respectively connected with the first amplifier and the second amplifier;
The detector, the high-speed switch, the power divider, the amplifier and the waveform display are sequentially connected, the power divider is connected with the second electronic switch, and the high-speed switch is connected with the pulse signal generator.
compared with the prior art, the utility model discloses utilize pulse power amplitude stabilized controller to establish low reflection coefficient's equivalent signal source, according to the envelope sampling principle of pulse power amplitude stabilized controller, at first with pulse modulation signal and continuous wave signal, through oscilloscope detection, the sampling of high-speed sample hold circuit, high accuracy comparator is than enlargiing, guarantees that pulse modulation signal peak power is the same with continuous wave power amplitude. And measuring the continuous wave power amplitude through a standard continuous wave power meter to determine the peak power of the pulse modulation signal so as to realize the calibration of the pulse power sensor in a pulse power state.
drawings
fig. 1 is a schematic diagram illustrating a pulse power calibration apparatus according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a pulse power amplitude-stabilizing controller according to an embodiment of the present invention.
Detailed Description
in order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the utility model provides a pulse power calibration device, include:
a pulse signal generator;
The microwave signal source and the pulse power amplitude stabilizing controller are connected with each other, and the pulse power amplitude stabilizing controller is connected with the test end face;
And the precise voltage source and the oscilloscope are respectively connected with the pulse power amplitude-stabilizing controller.
In an embodiment of the pulse power calibration apparatus of the present invention, the pulse signal generator is configured to output two paths of identical pulse signals, wherein one path of pulse signals is loaded to the microwave signal source, and the output of the pulse modulation signals is realized through the external modulation function of the pulse modulation module of the microwave signal source; and the other path of the pulse envelope signal is loaded to a peak detector through a power divider of the pulse power amplitude-stabilizing controller, and a pulse envelope signal is output.
the utility model discloses an in the pulse power calibrating device, the high-speed sampling hold circuit of pulse amplitude-stabilizing controller with it has high-speed switch to add between the peak detector to use oscilloscope to monitor pulse signal, high-speed sampling hold circuit takes a sample pulse signal under pulse signal generator's another way pulse signal's synchronization, and the sampling amplitude is compared with accurate voltage source voltage value, controls with comparison signal microwave signal source's amplitude.
the pulse power calibration device comprises a pulse amplitude stabilizing controller, a high-speed sampling and holding circuit, a peak detector, a pulse signal generator, a pulse signal output circuit, a pulse modulation signal output circuit, a pulse power calibration circuit, a pulse signal output circuit, a pulse amplitude control circuit and a comparison signal control circuit.
as shown in fig. 2, in an embodiment of the pulse power calibration apparatus of the present invention, the pulse power amplitude stabilizing controller includes:
The power divider comprises a comparison circuit, a drive circuit, a microwave signal source and a power divider which are connected in sequence, wherein the power divider is connected with a test port;
The pulse signal generator is connected with the microwave signal source;
the circuit comprises a precision voltage source, a reverse circuit and a first sampling and holding circuit which are connected in sequence, wherein the first sampling and holding circuit is connected with the comparison circuit;
The sampling circuit comprises a first electronic switch and a second sampling and holding circuit which are connected in sequence, wherein the second sampling and holding circuit is connected with the electronic switch;
The first amplifier and the second amplifier are respectively connected with the first electronic switch;
The second electronic switch is respectively connected with the first amplifier and the second amplifier;
the detector, the high-speed switch, the power divider, the amplifier and the waveform display are sequentially connected, the power divider is connected with the second electronic switch, and the high-speed switch is connected with the pulse signal generator.
the utility model discloses before the pulse power signal gets into power sensor, earlier through the signal steady amplitude loop, adopt the envelope sample comparison method, utilize the peak detector to carry out quick real-time detection to the pulse power signal, and generate broadband video signal by a high-speed sample hold circuit sampling, this broadband video signal carries out the comparison with the direct current voltage of precision voltage source output, cooperation pulse steady amplitude loop, the pulse modulation signal after the steady amplitude of messenger's system output is the same with continuous wave signal's output amplitude, thereby obtain the low reflection coefficient's of a range equivalent pulse power signal source. Therefore, the pulse power sensor can be calibrated in a pulse power state.
the utility model discloses pulse power calibrating device utilizes pulse power amplitude stabilized controller to establish low reflection coefficient's equivalent signal source, according to the envelope sampling principle of pulse power amplitude stabilized controller, at first with pulse modulation signal and continuous wave signal, through oscilloscope detection, the sampling of high-speed sample hold circuit, and high accuracy comparator is than enlargiing, guarantees that pulse modulation signal peak power is the same with continuous wave power amplitude. And measuring the continuous wave power amplitude through a standard continuous wave power meter to determine the peak power of the pulse modulation signal so as to realize the calibration of the pulse power sensor in a pulse power state.
the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It will be apparent to those skilled in the art that various changes and modifications may be made to the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A pulse power calibration device, comprising:
a pulse signal generator;
The microwave signal source and the pulse power amplitude stabilizing controller are connected with each other, and the pulse power amplitude stabilizing controller is connected with the test end face;
And the precise voltage source and the oscilloscope are respectively connected with the pulse power amplitude-stabilizing controller.
2. The pulse power calibration device according to claim 1, wherein the pulse signal generator is configured to output two identical pulse signals, one of which is applied to the microwave signal source, and output the pulse modulation signal through an external modulation function of the pulse modulation module of the microwave signal source; and the other path of the pulse envelope signal is loaded to a peak detector through a power divider of the pulse power amplitude-stabilizing controller, and a pulse envelope signal is output.
3. The pulse power calibration device according to claim 2, wherein a high-speed switch is added between a high-speed sample-and-hold circuit of the pulse amplitude stabilizing controller and the peak detector to monitor the pulse signal by using an oscilloscope, the high-speed sample-and-hold circuit samples the pulse signal under the synchronous action of the other path of pulse signal of the pulse signal generator, the sampled amplitude is compared with the voltage value of the precision voltage source, and the amplitude of the microwave signal source is controlled by the comparison signal.
4. the pulse power calibration device of claim 1, wherein the pulse power amplitude controller comprises:
The power divider comprises a comparison circuit, a drive circuit, a microwave signal source and a power divider which are connected in sequence, wherein the power divider is connected with a test port;
the pulse signal generator is connected with the microwave signal source;
the circuit comprises a precision voltage source, a reverse circuit and a first sampling and holding circuit which are connected in sequence, wherein the first sampling and holding circuit is connected with the comparison circuit;
The sampling circuit comprises a first electronic switch and a second sampling and holding circuit which are connected in sequence, wherein the second sampling and holding circuit is connected with the electronic switch;
The first amplifier and the second amplifier are respectively connected with the first electronic switch;
the second electronic switch is respectively connected with the first amplifier and the second amplifier;
the detector, the high-speed switch, the power divider, the amplifier and the waveform display are sequentially connected, the power divider is connected with the second electronic switch, and the high-speed switch is connected with the pulse signal generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308052.3U CN209805784U (en) | 2019-03-11 | 2019-03-11 | pulse power calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308052.3U CN209805784U (en) | 2019-03-11 | 2019-03-11 | pulse power calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209805784U true CN209805784U (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920308052.3U Active CN209805784U (en) | 2019-03-11 | 2019-03-11 | pulse power calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209805784U (en) |
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2019
- 2019-03-11 CN CN201920308052.3U patent/CN209805784U/en active Active
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