CN210899137U - High-overload short-distance ranging radio frequency circuit - Google Patents
High-overload short-distance ranging radio frequency circuit Download PDFInfo
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- CN210899137U CN210899137U CN201920413047.9U CN201920413047U CN210899137U CN 210899137 U CN210899137 U CN 210899137U CN 201920413047 U CN201920413047 U CN 201920413047U CN 210899137 U CN210899137 U CN 210899137U
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- 239000013078 crystal Substances 0.000 claims abstract description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 239000010703 silicon Substances 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 230000010354 integration Effects 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000002210 silicon-based material Substances 0.000 abstract description 4
- 239000010453 quartz Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000004075 alteration Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a high short-range distance measurement radio frequency circuit that transships adopts silicon material as the crystal oscillator raw materials through establishing, again through establishing silicon crystal oscillator and phase-locked loop, loop filter, radio frequency output module respectively to form a whole set of radio frequency signal output circuit. Since the silicon crystal oscillator can bear 50000g of impact to the maximum extent, the radio frequency circuit in the embodiment of the application can show excellent bearing capacity in a high overload environment, and has the technical effects of improving the reliability of the whole radio frequency circuit and reducing the fault rate. Further, the radio frequency circuit is printed on a circular PCB with the diameter of 13-16 mm, the power consumption of the radio frequency circuit is about 500mW, and on the basis of high integration level, the power consumption can also achieve a lower standard, so that the technical scheme of the application also has the technical effects of improving the miniaturization and the lightness of the short-distance ranging radio frequency circuit.
Description
Technical Field
The utility model relates to an electronic communication technical field especially relates to a high short-range distance measurement radio frequency circuit that transships.
Background
At present, in a short-distance ranging radio frequency circuit system, an electronic device capable of generating a chirp continuous wave, such as a phase detector, is generally required, and the phase detector needs to use an OSC (oscillator) during use. The traditional quartz crystal oscillator can only bear hundreds of g of impact, and when the quartz crystal oscillator is applied to a high overload environment state, the quartz crystal oscillator is often damaged or fails due to high overload impact, so that the abnormity of the whole short-distance ranging radio frequency circuit system is caused.
Meanwhile, as modern electronic devices are developed towards light weight, small size and high integration level, the existing short-range distance measurement radio frequency circuit structure is increasingly unable to meet the actual requirements of production and life.
Therefore, the technical problems that the quartz crystal oscillator in the high-overload short-distance radio frequency circuit is low in bearing capacity and easy to cause faults and the whole short-distance radio frequency circuit structure cannot meet the requirements of light and small applications exist in the prior art.
SUMMERY OF THE UTILITY MODEL
The application provides a high short-range distance measurement radio frequency circuit that transships for solve the quartz crystal oscillator bearing capacity among the high short-range distance measurement radio frequency circuit that exists among the prior art lower and arouse the trouble easily, and whole short-range distance measurement radio frequency circuit structure can't satisfy the technical problem of light small-size application demand.
This application provides a high short-range distance measurement radio frequency circuit that transships on one hand, includes:
the silicon crystal oscillator is used for generating a reference signal with a preset frequency;
the phase discriminator is connected with the silicon crystal oscillator and used for generating an intermediate signal which corresponds to the preset frequency and has a preset waveform, wherein the intermediate signal is a linear frequency modulation continuous wave;
the loop filter is connected with the phase-locked loop and used for filtering the intermediate signal to generate a filtering signal;
and the radio frequency output module comprises a voltage-controlled oscillator which is connected with the loop filter and used for generating and outputting the ranging signal with the frequency corresponding to the filtering signal.
Optionally, the voltage controlled oscillator is a monolithic microwave integrated circuit.
Optionally, the voltage-controlled oscillator is connected to the phase-locked loop, and is configured to output a pre-divided signal matched to the ranging signal to the phase-locked loop.
Optionally, the high overload short-range radio frequency circuit is printed on a circular PCB with a diameter of 13-16 mm.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
in the embodiment of the application, the radio frequency circuit adopts a silicon material as a crystal oscillator raw material, and then the silicon crystal oscillator is respectively connected with the phase-locked loop, the loop filter and the radio frequency output module in series to form a whole set of radio frequency signal output circuit. Since the silicon crystal oscillator can bear 50000g of impact to the maximum extent, the radio frequency circuit in the embodiment of the application can show excellent bearing capacity in a high overload environment, and has the technical effects of improving the reliability of the whole radio frequency circuit and reducing the fault rate. Further, the radio frequency circuit is printed on a circular PCB with the diameter of 13-16 mm, the power consumption of the radio frequency circuit is about 500mW, and on the basis of high integration level, the power consumption can also achieve a lower standard, so that the technical scheme of the application also has the technical effects of improving the miniaturization and the lightness of the short-distance ranging radio frequency circuit.
Drawings
Fig. 1 is a circuit structure diagram of a high overload short-distance measuring rf circuit according to an embodiment of the present invention.
Detailed Description
The application provides a high short-range distance measurement radio frequency circuit that transships for solve the quartz crystal oscillator bearing capacity among the high short-range distance measurement radio frequency circuit that exists among the prior art lower and arouse the trouble easily, and whole short-range distance measurement radio frequency circuit structure can't satisfy the technical problem of light small-size application demand.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
in the embodiment of the application, the radio frequency circuit adopts a silicon material as a crystal oscillator raw material, and then the silicon crystal oscillator is respectively connected with the phase-locked loop, the loop filter and the radio frequency output module in series to form a whole set of radio frequency signal output circuit. Since the silicon crystal oscillator can bear 50000g of impact to the maximum extent, the radio frequency circuit in the embodiment of the application can show excellent bearing capacity in a high overload environment, and has the technical effects of improving the reliability of the whole radio frequency circuit and reducing the fault rate. Further, the radio frequency circuit is printed on a circular PCB with the diameter of 13-16 mm, the power consumption of the radio frequency circuit is about 500mW, and on the basis of high integration level, the power consumption can also achieve a lower standard, so that the technical scheme of the application also has the technical effects of improving the miniaturization and the lightness of the short-distance ranging radio frequency circuit.
The technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Example one
Referring to fig. 1, an embodiment of the present application provides a high-overload short-distance rf circuit, including:
a silicon crystal oscillator 101 for generating a reference signal having a predetermined frequency;
the phase discriminator 102 is connected with the silicon crystal oscillator and used for generating an intermediate signal which corresponds to the preset frequency and has a preset waveform, wherein the intermediate signal is a linear frequency modulation continuous wave;
a loop filter 103 connected to the phase-locked loop, for filtering the intermediate signal to generate a filtered signal;
and a radio frequency output module 104, including a voltage controlled oscillator, connected to the loop filter, for generating and outputting a ranging signal having a frequency corresponding to the filtered signal.
Further, the voltage-controlled oscillator in this embodiment of the present application is a monolithic microwave integrated circuit, and the voltage-controlled oscillator is connected to the phase-locked loop, and is configured to output a pre-frequency-division signal matched with the ranging signal to the phase-locked loop.
The loop filter in the embodiment of the application adopts a linear circuit, and specifically comprises a linear element resistor and a capacitor. In practical applications, the loop filter is mainly used to attenuate fast-changing phase deviations caused by input signal noise and to smooth high-frequency components leaked by the phase detector, so as to make an accurate estimation of the original signal (i.e. the filtered signal) at its output.
In the actual operation process, the phase discriminator can detect the phase difference between a reference signal and a filtering signal output by the silicon crystal oscillator, convert the detected phase difference signal into a voltage signal to be output, form the control voltage of the voltage-controlled oscillator after the phase difference signal is filtered by the low-pass filter, control the frequency of the output signal (namely the ranging signal) of the voltage-controlled oscillator, and feed back the frequency and the phase which are output by the voltage-controlled oscillator and matched with the ranging signal to the phase discriminator through the pre-frequency division signal by the feedback path. Radio frequency circuit in this application embodiment configures the phase discriminator through the configuration interface and controls voltage controlled oscillator output frequency modulation continuous wave, also is promptly the range finding signal, later, the user can detect received range finding signal through signal receiving equipment to carry out the analysis and can obtain accurate distance information based on this range finding signal, accomplish closely to survey.
Because the silicon material is adopted as the crystal oscillator raw material in the radio frequency circuit, the silicon crystal oscillator can bear 50000g impact to the maximum extent, so that the radio frequency circuit in the embodiment of the application can show excellent bearing capacity in a high overload environment, and the technical effects of improving the reliability of the whole radio frequency circuit and reducing the fault rate are achieved. Further, the radio frequency circuit in the embodiment of the application is printed on a circular PCB with a diameter of 13-16 mm, the power consumption of the radio frequency circuit is about 500mW, and on the basis of high integration level, the power consumption can also achieve a lower standard, so that the technical effects of improving the miniaturization and the lightness of the short-distance ranging radio frequency circuit are achieved.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (4)
1. A high-overload short-range radio frequency circuit, comprising:
the silicon crystal oscillator is used for generating a reference signal with a preset frequency;
the phase discriminator is connected with the silicon crystal oscillator and used for generating an intermediate signal which corresponds to the preset frequency and has a preset waveform, wherein the intermediate signal is a linear frequency modulation continuous wave;
the loop filter is connected with the phase-locked loop and used for filtering the intermediate signal to generate a filtering signal;
and the radio frequency output module comprises a voltage-controlled oscillator which is connected with the loop filter and used for generating and outputting the ranging signal with the frequency corresponding to the filtering signal.
2. The radio frequency circuit of claim 1, wherein the voltage controlled oscillator is a monolithic microwave integrated circuit.
3. The radio frequency circuit of claim 1, wherein the voltage controlled oscillator is coupled to the phase locked loop to output a pre-divided signal to the phase locked loop that matches the ranging signal.
4. The RF circuit of claim 1, wherein the high overload short range RF circuit is printed on a circular PCB having a diameter of 13-16 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920413047.9U CN210899137U (en) | 2019-03-28 | 2019-03-28 | High-overload short-distance ranging radio frequency circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920413047.9U CN210899137U (en) | 2019-03-28 | 2019-03-28 | High-overload short-distance ranging radio frequency circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210899137U true CN210899137U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920413047.9U Active CN210899137U (en) | 2019-03-28 | 2019-03-28 | High-overload short-distance ranging radio frequency circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210899137U (en) |
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2019
- 2019-03-28 CN CN201920413047.9U patent/CN210899137U/en active Active
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