CN215682246U - High stability signal amplitude amplification equipment - Google Patents
High stability signal amplitude amplification equipment Download PDFInfo
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- CN215682246U CN215682246U CN202121633256.8U CN202121633256U CN215682246U CN 215682246 U CN215682246 U CN 215682246U CN 202121633256 U CN202121633256 U CN 202121633256U CN 215682246 U CN215682246 U CN 215682246U
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Abstract
The utility model relates to the technical field of communication, and discloses high-stability signal amplitude amplification equipment which comprises a universal clock source module, a comb spectrum filter circuit and a large gain amplification circuit, wherein the comb spectrum filter circuit comprises an amplifier, a filter circuit, a matching circuit and a frequency multiplication filter circuit, the connection part of the output end of the filter circuit and a rear-stage circuit is subjected to standing wave optimization treatment, the filter circuit comprises a micro-strip filter, taps at the two ends of the micro-strip filter adopt special optimization structures, and the large gain amplification circuit adopts a multi-stage amplifier and is accurately distributed according to signal power. According to the high-stability signal amplitude amplification device, the comb spectrum filter circuit is improved, so that the phase noise of an output signal is better, a narrow-band filter is used for suppressing an unnecessary signal for the output frequency, and the spurious suppression performance of the output signal is ensured.
Description
Technical Field
The utility model relates to the technical field of communication, in particular to high-stability signal amplitude amplification equipment.
Background
The universal clock source module is a main element for realizing the transmission and receiving of channel excitation signals, and plays a very important role in a microwave detection system. The universal clock source module has the advantages of diversified output frequencies, high frequency precision, good standing wave, high spurious suppression, good phase noise, high stability, small size, high integration level and the like, and is widely adopted. However, the performance index of the module is mainly determined by a comb spectrum frequency multiplication filter circuit, a mixing filter circuit and the like. The clock source generated by the current general component has the defects of low frequency stray, poor phase noise, high power consumption and the like, and is gradually difficult to adapt to the current technical trend. For this reason, companies developed a new comb spectrum frequency multiplication filter circuit and a new frequency mixing filter circuit.
At present, the production of domestic microwave components is mainly realized by frequency doubling, frequency mixing filtering and other modes, and the defects are that the stray signal suppression is not high and the phase noise is not good. In order to realize miniaturization of the system, low power consumption and modules are developed only in a direction of high integration.
The universal clock source module is a main element for providing excitation signals for the transceiving channels, and plays a very important role in the microwave communication system. The universal clock source module has the advantages of diversified output frequency, high frequency precision, better standing wave, high phase noise, high stray suppression, high stability, small volume, high integration level and the like, thereby being widely adopted, but the universal clock source module has the following defects in the aspects of performance and the like:
the prior art discloses a microwave assembly:
the comb spectrum frequency multiplication filter circuit and the frequency mixing filter circuit are composed of a plurality of discrete electronic components, and have the advantages of low cost, diversified output frequency, low power consumption and the like, and are convenient to use and use in various occasions.
However, the existing clock source module circuit has the following disadvantages:
(1) the simple comb spectrum frequency multiplication filter circuit outputs phase noise difference, stray exists near an output main signal, and after the stray further increases after passing through the amplifying circuit, the stray cannot be filtered by a filter, and the sensitivity of a receiving system is directly influenced;
(2) the simple mixing filter circuit needs to output a high-power signal through a multi-stage amplifying circuit after frequency conversion due to a small input signal, and has a large gain of a link and is generated by broadband noise.
To this end, we propose a high stability signal amplitude amplifying device.
SUMMERY OF THE UTILITY MODEL
The present invention mainly solves the technical problems of the prior art, and provides a high-stability signal amplitude amplifying device.
In order to achieve the purpose, the utility model adopts the following technical scheme that the high-stability signal amplitude amplification device comprises a universal clock source module, a comb spectrum filter circuit and a large gain amplification circuit, wherein the comb spectrum filter circuit comprises an amplifier, a filter circuit, a matching circuit and a frequency multiplication filter circuit, the connection part of the output end of the filter circuit and a rear-stage circuit is subjected to standing wave optimization treatment, the filter circuit comprises a microstrip filter, taps at the two ends of the microstrip filter adopt special optimization structures, the large gain amplification circuit adopts a multi-stage amplifier and is accurately distributed according to signal power, the cascade and matching performance is improved among the multi-stage amplifiers in the modes of attenuation, filtering and the like, the standard of an input signal of the universal clock source module is 10MHz, and the power is 0-15 dBm; phase noise of the universal clock source module: less than or equal to-125 dBc/Hz @1 KHz; when a 10MHz clock is input into the input port, the universal clock module automatically works in a synchronous mode, the synchronous indicator lamp is lightened, and the harmonic suppression of the output signal of the universal clock source module is more than or equal to 40 dBc; the stray inhibition of the output signal of the universal clock source module is more than or equal to 60 dBc; the isolation between the different-frequency output signals of the universal clock source module is more than or equal to 60 dBc.
Preferably, the power supply of the universal clock source module is 220V alternating current.
Preferably, the universal clock source module adopts a natural heat dissipation mode, and the power consumption of the universal clock source module is less than or equal to 25W.
Preferably, the weight of the universal clock source module is less than or equal to 2 Kg.
Preferably, the working temperature of the universal clock source module is between-40 ℃ and +70 ℃.
Preferably, the universal clock source module is synchronized by a 10MHz synchronous clock generated by a conventional signal source instrument and the universal clock source modules are synchronized with each other.
Advantageous effects
The utility model provides a high-stability signal amplitude amplifying device. The method has the following beneficial effects:
(1) according to the high-stability signal amplitude amplifying device, the comb spectrum filter circuit is improved, so that the phase noise of an output signal is better, narrow-band filtering is used for suppressing an unnecessary signal for the output frequency, and the spurious suppression performance of the output signal is ensured.
(2) This high stability signal amplitude amplification equipment originally uses neotype wave filter, has improved the selectivity of mixing back output frequency, guarantees the suppression to clutter signal, makes output signal's frequency spectrum cleaner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a block diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): a high-stability signal amplitude amplifying device is shown in figure 1 and comprises a universal clock source module, a comb spectrum filter circuit and a large gain amplifying circuit, wherein the comb spectrum filter circuit comprises an amplifier, a filter circuit, a matching circuit and a frequency multiplication filter circuit, the joint of the output end of the filter circuit and a rear-stage circuit is subjected to standing wave optimization treatment, the filter circuit comprises a microstrip filter, taps at the two ends of the microstrip filter adopt special optimization structures, the large gain amplifying circuit adopts a multi-stage amplifier and is accurately distributed according to signal power, cascade and matching performances are improved among the multi-stage amplifier in the modes of attenuation, filtering and the like, the standard of an input signal of the universal clock source module is 10MHz, and the power is 0-15 dBm; phase noise of the universal clock source module: less than or equal to-125 dBc/Hz @1 KHz; the universal clock source module has the functions of synchronization of 10MHz synchronous clocks generated by a conventional signal source instrument and mutual synchronization between the universal clock source modules, when the input port has 10MHz clock input, the universal clock module automatically works in a synchronous mode, a synchronous indicator lamp is lightened, and the harmonic suppression of the output signal of the universal clock source module is more than or equal to 40 dBc; the stray inhibition of the output signal of the universal clock source module is more than or equal to 60 dBc; the utility model improves comb spectrum filter circuit to make phase noise of output signal better, uses narrow band filter to restrain unnecessary signal to output frequency, and guarantees stray restraining performance of output signal.
Through simulation design and circuit optimization, the utility model adopts the following technical scheme:
the component consists of a phase-locked source, a frequency divider, a comb spectrum filter circuit, a mixing filter circuit, an amplifying filter circuit and a power supply processing module. The functional block diagram is shown in FIG. 1;
the signal layout is as follows:
in consideration of the thickness and weight requirements of the modules, in order to reduce the partition wall between the modules, the cavities are milled on two sides of the modules, wherein a microwave circuit (microwave surface) is arranged on one side, and a power supply and a control drive circuit (drive surface) are arranged on the other side.
The microwave surface mainly realizes the following functions:
the main functions implemented by the driving surface are:
1. output power:
and selecting an amplifier with proper gain to ensure that the saturated output power is greater than the index required value.
2. Signal output phase noise:
from the additive phase noise: the frequency of the output frequency is less than or equal to 20log N +5(dB) (N is the ratio of the output frequency to the reference frequency), therefore, a device with high phase noise reference frequency is selected, a special comb spectrum generator is adopted, 5dB deterioration in a calculation formula is minimized, and experiments prove that the frequency can be less than or equal to 3 dB. And in order to ensure that the dynamic change of signal phase noise is small, all LC filters are subjected to gluing and encapsulating treatment after being debugged.
3. Clutter suppression:
and a proper filter is selected, and other signals are suppressed on the premise of ensuring the useful signals, so that the main-clutter suppression ratio of the useful signals to other stray signals is ensured.
4. Module power consumption:
and the power consumption of the module is reduced by selecting the amplifier with low power consumption.
5. Weight:
the module is made of special and low-density aluminum alloy materials, and weight reduction treatment is performed to the maximum extent on the premise of ensuring the strength of the module.
6. Electromagnetic compatibility:
the miniaturized electromagnetic compatible filter is integrated in the module, so that common-mode and differential-mode signals brought by a power supply can be effectively suppressed
In order to meet the design requirement of functional circuit unitization, the internal filter and other devices are modularized and can be independently installed, debugged and replaced.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a high stability signal amplitude amplification equipment, includes general clock source module, comb spectrum filter circuit and big gain amplifier circuit, its characterized in that: the comb spectrum filter circuit comprises an amplifier, a filter circuit, a matching circuit and a frequency doubling filter circuit, wherein the joint of the output end of the filter circuit and a rear-stage circuit is subjected to standing wave optimization treatment, the filter circuit comprises a microstrip filter, taps at two ends of the microstrip filter adopt special optimization structures, a large gain amplification circuit adopts multistage amplifiers and is accurately distributed according to signal power, and cascade and matching performances are improved by adopting attenuation and filtering modes among the multistage amplifiers.
2. A high stability signal amplitude amplifying device according to claim 1, wherein: the standard of the input signal of the universal clock source module is 10MHz, and the power is 0-15 dBm; phase noise of the universal clock source module: less than or equal to-125 dBc/Hz @1 KHz; when the input port has 10MHz clock input, the universal clock module works in the synchronous mode automatically, and the synchronous indicator light is lighted.
3. A high stability signal amplitude amplifying device according to claim 1, wherein: harmonic suppression of the output signal of the universal clock source module is more than or equal to 40 dBc; the stray inhibition of the output signal of the universal clock source module is more than or equal to 60 dBc; the isolation between the different-frequency output signals of the universal clock source module is more than or equal to 60 dBc.
4. A high stability signal amplitude amplifying device according to claim 1, wherein: the power supply of the universal clock source module is 220V alternating current.
5. A high stability signal amplitude amplifying device according to claim 1, wherein: the universal clock source module adopts a natural heat dissipation mode, and the power consumption of the universal clock source module is less than or equal to 25W.
6. A high stability signal amplitude amplifying device according to claim 1, wherein: the weight of the universal clock source module is less than or equal to 2 Kg.
7. A high stability signal amplitude amplifying device according to claim 1, wherein: the working temperature of the universal clock source module is between-40 ℃ and +70 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121633256.8U CN215682246U (en) | 2021-07-16 | 2021-07-16 | High stability signal amplitude amplification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121633256.8U CN215682246U (en) | 2021-07-16 | 2021-07-16 | High stability signal amplitude amplification equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215682246U true CN215682246U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121633256.8U Active CN215682246U (en) | 2021-07-16 | 2021-07-16 | High stability signal amplitude amplification equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215682246U (en) |
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2021
- 2021-07-16 CN CN202121633256.8U patent/CN215682246U/en active Active
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