CN220173229U - Frequency modulation continuous 3mm wave signal source system - Google Patents
Frequency modulation continuous 3mm wave signal source system Download PDFInfo
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- CN220173229U CN220173229U CN202321695579.9U CN202321695579U CN220173229U CN 220173229 U CN220173229 U CN 220173229U CN 202321695579 U CN202321695579 U CN 202321695579U CN 220173229 U CN220173229 U CN 220173229U
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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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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model provides a frequency modulation continuous 3mm wave signal source system, which comprises: the circuit comprises a shell, a power circuit, a voltage-controlled oscillator, a double-point frequency modulation circuit, a frequency quadrupler, a power amplifier and a frequency tripler. According to the scheme, the X-band integrated voltage-controlled oscillator is used as a reference signal, a double-point frequency modulation circuit is used for carrying out double-point frequency modulation on the voltage-controlled oscillator to obtain an X-band double-point frequency modulation signal, quadruple frequency is carried out to generate an 8 mm-wave double-point frequency modulation signal, the 8 mm-wave double-point frequency modulation signal is amplified by an amplifier, a tripler is excited to carry out triple frequency multiplication on the 8 mm-wave signal to obtain a double-point frequency modulation 3 mm-wave band signal which is used as a transmitting signal, and finally the transmitting signal is transitionally transmitted through a microstrip waveguide in the appearance structure. The system has the advantages that the generated double-point frequency modulation 3mm wave band signal has wide tuning width, is not easy to jump a mode, does not need to manually modulate and output the 3mm wave signal, and has high reliability.
Description
Technical Field
The utility model relates to the technical field of signal source systems, in particular to a frequency modulation continuous 3mm wave signal source system.
Background
Millimeter waves are electromagnetic waves with wavelengths between 1 and 10mm, and the corresponding frequency range is 3 to 300GHz. Millimeter waves have good atmospheric penetrability and have great significance in the fields of aerospace, communication, guidance, radar and the like. Wherein, 3mm wave band radar scanning shows width 3mm per hundred meters, and more than 8mm scanning space is big twice, more can track the scanning thing, and more be applicable to terminal sensitive guide, car perception surrounding environment, discovery, discernment object, anticollision guide etc.. Compared with other sensors, the sensor has the characteristics of all-weather operation, small influence by bad weather such as rain, snow, haze and the like, high stability and the like
The existing 3mm signal source can be used, but the output tuning width is narrow, the mode is easy to jump, the 3mm wave signal is required to be modulated and output manually or mechanically, the appearance structure is simple, the high-frequency signal interference is large, and the reliability is low.
Disclosure of Invention
Based on the above, it is necessary to provide a frequency modulation continuous 3mm wave signal source system aiming at the problem of low reliability of the existing 3mm signal source.
The utility model provides a frequency modulation continuous 3mm wave signal source system, which comprises: the device comprises a shell, a power circuit, a voltage-controlled oscillator, a double-point frequency modulation circuit, a frequency tripler, a power amplifier and a frequency tripler;
the power supply circuit, the voltage-controlled oscillator, the double-point frequency modulation circuit, the frequency quadrupler, the power amplifier and the frequency tripler are all arranged in the shell, and the power supply circuit is electrically connected with the voltage-controlled oscillator, the frequency quadrupler, the power amplifier and the frequency tripler respectively;
the double-point frequency modulation circuit is electrically connected with the voltage-controlled oscillator and is used for carrying out double-point frequency modulation on an X-wave band on the voltage-controlled oscillator to obtain an X-wave band double-point frequency modulation signal;
the quadrupler is electrically connected with the voltage-controlled oscillator and is used for quadrupling the X-band double-point frequency modulation signal to obtain an 8 mm-wave double-point frequency modulation signal;
the power amplifier is electrically connected with the quadruple frequency device and is used for amplifying the 8mm wave double-point frequency modulation signal;
the tripler is electrically connected with the power amplifier and is used for carrying out frequency tripling on the amplified 8 mm-wave double-point frequency modulation signal to obtain a double-point frequency modulation 3 mm-wave band signal;
the shell is also provided with a microstrip waveguide transition structure, and the double-point frequency modulation 3mm wave band signal is transmitted after being converted by the microstrip waveguide transition structure.
In one embodiment, the voltage-controlled oscillator is a voltage-controlled oscillator of model hmc5101p 5.
In one embodiment, the quad-frequency device is a model number MWX 010.
In one embodiment, the power amplifier is a power amplifier with model number MWL 021.
In one embodiment, the tripler is a model number MWX205 tripler.
In one embodiment, the interior of the housing is a dual chamber structure.
In one embodiment, the signal transmission among the two-point frequency modulation circuit, the voltage controlled oscillator, the quadruple frequency amplifier, the power amplifier and the tripler is performed through a 50 ohm microstrip line, and the transmission material is RT5880.
In one embodiment, the two-point frequency modulation circuit, the voltage controlled oscillator, the frequency quadrupler, the power amplifier and the frequency tripler are connected through a bond wire process.
The beneficial effects of the utility model include:
the frequency modulation continuous 3mm wave signal source system provided by the utility model uses an X-band integrated voltage-controlled oscillator as a reference signal, adopts a double-point frequency modulation circuit to carry out double-point frequency modulation on the voltage-controlled oscillator to obtain an X-band double-point frequency modulation signal, carries out frequency quadrupling to generate an 8mm wave double-point frequency modulation signal, amplifies the 8mm wave double-point frequency modulation signal by an amplifier to compensate for frequency conversion loss, excites a tripler to carry out frequency tripleing to the 8mm wave signal to obtain a double-point frequency modulation 3mm wave band signal as a transmitting signal, and finally transmits the double-point frequency modulation 3mm wave band signal through a microstrip waveguide transition structure in an appearance structure. The system has the advantages that the generated double-point frequency modulation 3mm wave band signal has wide tuning width, is not easy to jump a mode, does not need to manually modulate and output the 3mm wave signal, and has high reliability.
Drawings
FIG. 1 is a schematic diagram of a frequency modulated continuous 3mm wave signal source system according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a housing according to an embodiment of the present utility model;
FIG. 3 is another schematic view of FIG. 2;
fig. 4 is a schematic diagram of a voltage controlled oscillator according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of a quad-band amplifier according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a power amplifier according to an embodiment of the present utility model;
FIG. 7 is a schematic diagram of a frequency tripler according to an embodiment of the present utility model;
FIG. 8 is a schematic view of the interior of the housing;
FIG. 9 is a schematic diagram of a dual-point FM voltage waveform according to an embodiment of the present utility model;
FIG. 10 is a schematic diagram of a NE555 circuit according to an embodiment of the present utility model;
FIG. 11 is a schematic diagram of a square wave generation of NE555 according to an embodiment of the present utility model;
FIG. 12 is a schematic diagram of an SGM8210-1 circuit according to an embodiment of the present utility model;
fig. 13 is a schematic power diagram of an overall system according to an embodiment of the present utility model.
The figures are labeled as follows:
10. a housing; 101. a first cavity; 102. a second cavity.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
As shown in fig. 1 to 13, in one embodiment of the present utility model, there is provided a frequency modulation continuous 3mm wave signal source system, which includes: the device comprises a shell, a power circuit, a voltage-controlled oscillator, a double-point frequency modulation circuit, a frequency tripler, a power amplifier and a frequency tripler; the power supply circuit, the voltage-controlled oscillator, the double-point frequency modulation circuit, the frequency quadrupler, the power amplifier and the frequency tripler are all arranged in the shell, and the power supply circuit is electrically connected with the voltage-controlled oscillator, the frequency quadrupler, the power amplifier and the frequency tripler respectively.
The double-point frequency modulation circuit is electrically connected with the voltage-controlled oscillator and is used for carrying out double-point frequency modulation on an X-wave band on the voltage-controlled oscillator to obtain an X-wave band double-point frequency modulation signal; the quadrupler is electrically connected with the voltage-controlled oscillator and is used for quadrupling the X-band double-point frequency modulation signal to obtain an 8 mm-wave double-point frequency modulation signal; the power amplifier is electrically connected with the quadruple frequency converter and is used for amplifying the 8mm wave double-point frequency modulation signal; the tripler is electrically connected with the power amplifier and is used for carrying out frequency tripling on the amplified 8 mm-wave double-point frequency modulation signal to obtain a double-point frequency modulation 3 mm-wave band signal; the shell is also provided with a microstrip waveguide transition structure, and the double-point frequency modulation 3mm wave band signal is transmitted after being converted by the microstrip waveguide transition structure.
For example, in the present utility model, the first cavity 101 and the second cavity 102 are disposed in the housing 10, and meanwhile, the housing 10 is correspondingly provided with a power panel cover, a microstrip panel cover, a power panel, a microstrip panel, a small cover and a carrier, and the structures of the power panel cover, the microstrip panel cover, the power panel, the microstrip panel, the small cover and the carrier in the housing 10 are the prior art, which will not be described here.
The frequency modulation continuous 3mm wave signal source system provided by the utility model uses an X-band integrated voltage-controlled oscillator as a reference signal, adopts a double-point frequency modulation circuit to carry out double-point frequency modulation on the voltage-controlled oscillator to obtain an X-band double-point frequency modulation signal, carries out frequency quadrupling to generate an 8mm wave double-point frequency modulation signal, amplifies the 8mm wave double-point frequency modulation signal by an amplifier to compensate for frequency conversion loss, excites a tripler to carry out frequency tripleing to the 8mm wave signal to obtain a double-point frequency modulation 3mm wave band signal as a transmitting signal, and finally transmits the double-point frequency modulation 3mm wave band signal through a microstrip waveguide transition structure in an appearance structure. As the double-point frequency modulation 3mm wave band signal is emitted through the microstrip waveguide transition structure, the signal can be well transited from the microstrip to the waveguide. Meanwhile, the tuning width of the double-point frequency modulation 3mm wave band signal generated by the system is wide, the mode jump is not easy, the manual modulation is not needed, and the reliability is high.
In some embodiments, the voltage-controlled oscillator of the present utility model is a voltage-controlled oscillator model hmc510lp 5.
In some embodiments, the quad in the present utility model is a quad model MWX 010.
In some embodiments, the power amplifier in the present utility model is a power amplifier with model number MWL 021.
In some embodiments, the tripler of the present utility model is a model MWX205 tripler.
In some embodiments, the signal transmission among the dual-point frequency modulation circuit, the voltage-controlled oscillator, the frequency quadrupler, the power amplifier and the frequency tripler is performed through a 50 ohm microstrip line, and the transmission material is RT5880. The double-point frequency modulation circuit, the voltage-controlled oscillator, the four-frequency amplifier, the power amplifier and the three-frequency amplifier are connected through a bond wire process.
The design of the double-point frequency modulation circuit and other power supplies in the utility model is as follows:
in order to ensure that the generated 3mm wave band signal can cover the whole 3mm wave band, as shown in fig. 9, a double-point frequency modulation circuit is selected to control the tuning voltage of the voltage-controlled oscillator, so as to generate two periodically hopped 3 wave band signals.
In the scheme, a square wave generator with an adjustable period is formed by using a multivibrator consisting of a 555 timer and an RC, and a NE555 circuit schematic diagram is shown in fig. 10. The waveform generated by the generator is a square wave with the low level of 0V and the high level of less than the power supply voltage of the timer. The high-low level of the square wave can be changed at any time according to the debugging requirement, an operational amplifier is added at the output end of the 555 timer to be used as an adder, and the high-low level of the square wave is adjusted, so that the output frequency of the voltage-controlled oscillator is adjusted to an ideal frequency.
Then the 2 pin and the 6 pin of the NE555 are connected together to form a Schmidt trigger circuit, and Vin is connected back to an input end through an RC integrating circuit to obtain the multi-resonator. When the capacitor C5 is charged, according to the unidirectional conductivity of the diode, current passes through R1, VD2 and C5, and the charging time is as follows:
T 1 ＝R 1 Cln2
when C5 is discharged, current passes through C5, VD1 and R2, and the discharging time is as follows:
T 2 ＝R 2 Cln2
as can be seen from the charge and discharge parameters of NE555, when r1=r2, the charge and discharge times are substantially equal. This produces a fixed period two-point fm voltage. At this time, the low level of the two-point FM voltage is 0V, and the high level isAs shown in fig. 11, the square wave low level generated by the NE555 square wave generator is 0V, in practical application, the lowest tuning voltage of the dual-point frequency modulation circuit is greater than 0V, as shown in fig. 12, the addition characteristic of the SGM8210 is selected, and the dual-point voltage generated by the NE555 is properly increased according to the debugging requirement, so as to ensure the voltage-controlled oscillatorAccuracy of the output frequency.
The input current of the operational amplifier is approximately infinitesimal because of the infinite input impedance of the operational amplifier, and the adder is realized by using the condition. The in-phase summing device is characterized in that a plurality of signal source currents flow to an in-phase input end by using the KCL law, and in-phase addition is realized by using the fact that the in-phase input voltage of the operational amplifier is approximately equal to the reverse input voltage of the operational amplifier.
The method is characterized by comprising the following steps of:
I R9 +I R10 ＝I R8
when r9=r10, the group,
SGM2040-5.0YUDH4G/TR is selected to provide 5V power for the voltage controlled oscillator. The voltage stabilizer has the advantages of low cost, low noise, small quiescent current, less required external elements, high reliability and the like. RE3236-5.0YF5 is selected to provide power for the quadruple frequency device MWX010, 555 timer and the operational amplifier SGM 8210. An SGM2205-ADJXS8G/TR adjustable linear voltage stabilizer is selected to provide positive voltage for a tripler MWX205 and an amplifier MWL 021; the negative supply regulator SGM3207 generates a required negative supply voltage for the entire circuit. The schematic circuit diagram is shown in fig. 13.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (8)
1. A frequency modulated continuous 3mm wave signal source system comprising: the device comprises a shell, a power circuit, a voltage-controlled oscillator, a double-point frequency modulation circuit, a frequency tripler, a power amplifier and a frequency tripler;
the power supply circuit, the voltage-controlled oscillator, the double-point frequency modulation circuit, the frequency quadrupler, the power amplifier and the frequency tripler are all arranged in the shell, and the power supply circuit is electrically connected with the voltage-controlled oscillator, the frequency quadrupler, the power amplifier and the frequency tripler respectively;
the double-point frequency modulation circuit is electrically connected with the voltage-controlled oscillator and is used for carrying out double-point frequency modulation on an X-wave band on the voltage-controlled oscillator to obtain an X-wave band double-point frequency modulation signal;
the quadrupler is electrically connected with the voltage-controlled oscillator and is used for quadrupling the X-band double-point frequency modulation signal to obtain an 8 mm-wave double-point frequency modulation signal;
the power amplifier is electrically connected with the quadruple frequency device and is used for amplifying the 8mm wave double-point frequency modulation signal;
the tripler is electrically connected with the power amplifier and is used for carrying out frequency tripling on the amplified 8 mm-wave double-point frequency modulation signal to obtain a double-point frequency modulation 3 mm-wave band signal;
the shell is also provided with a microstrip waveguide transition structure, and the double-point frequency modulation 3mm wave band signal is transmitted after being converted by the microstrip waveguide transition structure.
2. The fm continuous 3mm wave signal source system of claim 1, wherein the voltage controlled oscillator is a type hmc510lp5 voltage controlled oscillator.
3. The fm continuous 3mm wave signal source system of claim 1, wherein said quad is a model MWX 010.
4. The fm continuous 3mm wave signal source system of claim 1, wherein said power amplifier is a MWL021 type power amplifier.
5. The fm continuous 3mm wave signal source system of claim 1, wherein said tripler is a model MWX205 tripler.
6. The fm continuous 3mm wave signal source system of any of claims 1-5, wherein the housing interior is a dual cavity structure.
7. The fm continuous 3mm wave signal source system according to any of claims 1-5, wherein signal transmission among the two-point fm circuit, the voltage controlled oscillator, the quad-band, the power amplifier and the tripler is performed by a 50 ohm microstrip line, and the transmission material is RT5880.
8. The fm continuous 3mm wave signal source system according to any of claims 1-5, wherein the dual point fm circuit, the voltage controlled oscillator, the quad-band amplifier, and the tripler are connected by a bond wire process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321695579.9U CN220173229U (en) | 2023-06-30 | 2023-06-30 | Frequency modulation continuous 3mm wave signal source system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321695579.9U CN220173229U (en) | 2023-06-30 | 2023-06-30 | Frequency modulation continuous 3mm wave signal source system |
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| Publication Number | Publication Date |
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| CN220173229U true CN220173229U (en) | 2023-12-12 |
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| CN202321695579.9U Active CN220173229U (en) | 2023-06-30 | 2023-06-30 | Frequency modulation continuous 3mm wave signal source system |
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