CN103197106A - Reference source used for verification and comparison of 1-6GHz radiation disturbance detection capacity - Google Patents
Reference source used for verification and comparison of 1-6GHz radiation disturbance detection capacity Download PDFInfo
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- CN103197106A CN103197106A CN2012100055005A CN201210005500A CN103197106A CN 103197106 A CN103197106 A CN 103197106A CN 2012100055005 A CN2012100055005 A CN 2012100055005A CN 201210005500 A CN201210005500 A CN 201210005500A CN 103197106 A CN103197106 A CN 103197106A
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Abstract
The invention discloses a reference source used for verification and comparison of 1-6GHz radiation disturbance detection capacity. The reference source used for the verification and the comparison of the 1-6GHz radiation disturbance detection capacity comprises a constant temperature crystal oscillating unit, a first harmonic generator, a band-pass filter, an amplifier and a second harmonic generator. The constant temperature crystal oscillating unit is used for generating oscillating signals with fixed frequency. The first harmonic generator is used for generating harmonic waves with certain base frequency. The band-pass filter is used for enabling the harmonic waves generated by the harmonic generator to filter the signals which are out of the signals with the fixed frequency. The amplifier is used for amplifying the signals generated by the band-pass filter. The second harmonic generator is used for generating harmonic waves with fixed base frequency. The oscillating signals generated by the constant temperature crystal oscillating unit pass the first harmonic generator and enter the band-pass filter, then pass the amplifier and are output through the second harmonic generator. According to the reference source used for the verification and the comparison of the 1-6GHz radiation disturbance detection capacity, the problems that in the prior art, an output level is not large enough and stability is poor are solved, an output signal level and stability are improved, the structure is simple, and implementation cost is low.
Description
Technical field
Patent of the present invention relates to the proficiency testing field, especially for the checking of the radiation disturbance detectability of the chamber that experimentizes or the comparison between the different experiments chamber, especially relates to a kind of reference source for the checking of 1-6GHz radiation disturbance detectability and comparison.
Background technology
Radiation disturbance refers to that mainly energy is transmitted into the phenomenon that space or energy are propagated in the space with the electromagnetic wave form with the electromagnetic wave form by the source.Radiation disturbance is the important content of electromagnetic compatibility, also be test least easily by and the project of difficult rectification, speaking of electromagnetic compatibility test, defective what make us at first expecting is exactly that radiation disturbance exceeds standard; Radiation disturbance exceeds standard and may cause that device, equipment or system performance reduce or damage having life or xenobiotic matter to produce on every side.
For strict laboratory, the radiation disturbance ability is one of the important indicator in important laboratory, especially for the test of the radiation disturbance in the 1-6GHz frequency range, therefore have great importance to the checking of the radiation disturbance ability in laboratory or with comparing between the different experiments chamber.Yet, in the prior art, the checking of the radiation disturbance ability in laboratory or will compare between the different experiments chamber, the output level of the signal source that is often used for comparing is big and stable inadequately inadequately, has influenced accuracy and the credibility of checking or contrast.
Summary of the invention
The objective of the invention is to design a kind of novel reference source that is used for the checking of 1-6GHz radiation disturbance detectability and comparison, address the above problem.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of reference source for the checking of 1-6GHz radiation disturbance detectability and comparison comprises constant-temperature crystal oscillator unit, first harmonic generator, bandpass filter, amplifier and second harmonic generator;
Described constant-temperature crystal oscillator unit is for generation of the oscillator signal of fixed frequency;
Described first harmonic generator is for generation of the harmonic wave of certain fundamental frequency;
Described bandpass filter, the signal beyond the harmonic wave elimination fixed frequency that is used for described harmonic oscillator is produced;
Described amplifier is used for the signal that described bandpass filter produces is amplified;
Described second harmonic generator is for generation of the fixing harmonic wave of fundamental frequency;
The oscillator signal that described constant-temperature crystal oscillator unit produces through behind the described first harmonic generator, enters described bandpass filter, pass through described amplifier then after, through described second harmonic generator output.
Preferably, described constant-temperature crystal oscillator unit is the 100MHz constant-temperature crystal oscillator, for generation of the oscillator signal of 100MHz;
Described first harmonic generator is the 100MHz harmonic oscillator, is the harmonic wave of 100MHz for generation of fundamental frequency;
Described bandpass filter is the 1GHz bandpass filter, the signal beyond the harmonic wave elimination 1GHz that is used for described harmonic oscillator is produced;
Described amplifier is used for the signal that described bandpass filter produces is amplified;
Described second harmonic generator is the 1GHz constant-temperature crystal oscillator, for generation of the harmonic wave of 1GHz.
Preferably, also comprise power supply unit, described constant-temperature crystal oscillator unit, described first harmonic generator, described bandpass filter, described amplifier and described second harmonic generator all are electrically connected with described power supply unit.
Preferably, described power supply unit is power supply unit of voltage regulation.
Preferably, described power supply unit is the power supply unit of voltage regulation of 12V, is used to total system that the stabilized voltage supply of 12V is provided.
The so-called reference source of the present invention refers to, be used as the sample of the radiation disturbance detectability checking of 1-6G because of the present invention, under the environment in different time, place and laboratory, has stable output, test data and the existing standard data (data are impossible entirely accurates, the reference data of therefore can only saying so) of investigating each different experiments chamber compare, with the ability of evaluation experimental chamber, such sample that is endowed " reference data " is referred to as " reference source ".
In the present invention, the oscillator signal that described constant-temperature crystal oscillator unit produces, through behind the described first harmonic generator, after entering the harmonic wave elimination fixed frequency signal in addition of described bandpass filter with described harmonic oscillator generation, enter amplifier and amplify, behind described second harmonic generator, export then.
Described first harmonic generator can be the 100MHz harmonic oscillator, is the harmonic wave of 100MHz for generation of fundamental frequency, such as 200MHz, and 300MHz ... 1GHz, 1.1GHz ... Deng;
Therefore, beneficial effect of the present invention is as follows:
1, the invention solves the output level of the prior art big and not enough problem of stability inadequately, improved output signal level and stability.Such as, the minimum output of 1G-6GHz of the present invention is 108dB, the output of existing product is 60dB-97dB; Stability of the present invention is at 1.1dB, more than the existing product 2dB.
2, the present invention is simple in structure, and implementation cost is cheap.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
A kind of reference source for the checking of 1-6GHz radiation disturbance detectability and comparison as shown in Figure 1 comprises constant-temperature crystal oscillator unit, first harmonic generator, bandpass filter, amplifier and second harmonic generator; Described constant-temperature crystal oscillator unit is the 100MHz constant-temperature crystal oscillator, for generation of the oscillator signal of 100MHz; Described first harmonic generator is the 100MHz harmonic oscillator, is the harmonic wave of 100MHz for generation of fundamental frequency; Described bandpass filter is the 1GHz bandpass filter, the signal beyond the harmonic wave elimination 1GHz that is used for described harmonic oscillator is produced; Described amplifier is used for the signal that described bandpass filter produces is amplified; Described second harmonic generator is the 1GHz constant-temperature crystal oscillator, for generation of the harmonic wave of 1GHz; The oscillator signal that described constant-temperature crystal oscillator unit produces through behind the described first harmonic generator, enters described bandpass filter, pass through described amplifier then after, through described second harmonic generator output; Described reference source also comprises power supply unit, described constant-temperature crystal oscillator unit, described first harmonic generator, described bandpass filter, described amplifier and described second harmonic generator all are electrically connected with described power supply unit, described power supply unit is the power supply unit of voltage regulation of 12V, is used to total system that the stabilized voltage supply of 12V is provided.
More than by the detailed description of concrete and preferred embodiment the present invention; but those skilled in the art should be understood that; the present invention is not limited to the above embodiment; within the spirit and principles in the present invention all; any modification of doing, be equal to replacement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a reference source that is used for the checking of 1-6GHz radiation disturbance detectability and comparison is characterized in that: comprise constant-temperature crystal oscillator unit, first harmonic generator, bandpass filter, amplifier and second harmonic generator;
Described constant-temperature crystal oscillator unit is for generation of the oscillator signal of fixed frequency;
Described first harmonic generator is for generation of the harmonic wave of certain fundamental frequency;
Described bandpass filter, the signal beyond the harmonic wave elimination fixed frequency that is used for described harmonic oscillator is produced;
Described amplifier is used for the signal that described bandpass filter produces is amplified;
Described second harmonic generator is for generation of the fixing harmonic wave of fundamental frequency;
The oscillator signal that described constant-temperature crystal oscillator unit produces through behind the described first harmonic generator, enters described bandpass filter, pass through described amplifier then after, through described second harmonic generator output.
2. the reference source for 1-6GHz radiation disturbance detectability checking and comparison according to claim 1 is characterized in that:
Described constant-temperature crystal oscillator unit is the 100MHz constant-temperature crystal oscillator, for generation of the oscillator signal of 100MHz;
Described first harmonic generator is the 100MHz harmonic oscillator, is the harmonic wave of 100MHz for generation of fundamental frequency;
Described bandpass filter is the 1GHz bandpass filter, the signal beyond the harmonic wave elimination 1GHz that is used for described harmonic oscillator is produced;
Described amplifier is used for the signal that described bandpass filter produces is amplified;
Described second harmonic generator is the 1GHz constant-temperature crystal oscillator, for generation of the harmonic wave of 1GHz.
3. the reference source for 1-6GHz radiation disturbance detectability checking and comparison according to claim 1, it is characterized in that: also comprise power supply unit, described constant-temperature crystal oscillator unit, described first harmonic generator, described bandpass filter, described amplifier and described second harmonic generator all are electrically connected with described power supply unit.
4. the reference source for 1-6GHz radiation disturbance detectability checking and comparison according to claim 3, it is characterized in that: described power supply unit is power supply unit of voltage regulation.
5. the reference source for 1-6GHz radiation disturbance detectability checking and comparison according to claim 4, it is characterized in that: described power supply unit is the power supply unit of voltage regulation of 12V, is used to total system that the stabilized voltage supply of 12V is provided.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100055005A CN103197106A (en) | 2012-01-10 | 2012-01-10 | Reference source used for verification and comparison of 1-6GHz radiation disturbance detection capacity |
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| CN2012100055005A CN103197106A (en) | 2012-01-10 | 2012-01-10 | Reference source used for verification and comparison of 1-6GHz radiation disturbance detection capacity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228987A (en) * | 2017-06-09 | 2017-10-03 | 中国电器科学研究院有限公司 | Electric automobile electromagnetic field tests special proficiency testing method and comb signal generator |
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| CN201837648U (en) * | 2010-11-12 | 2011-05-18 | 东莞市信测科技有限公司 | Comparison signal source |
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| CN201259543Y (en) * | 2008-08-28 | 2009-06-17 | 阮树成 | Millimeter-wave radar frequency synthesizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228987A (en) * | 2017-06-09 | 2017-10-03 | 中国电器科学研究院有限公司 | Electric automobile electromagnetic field tests special proficiency testing method and comb signal generator |
| CN107228987B (en) * | 2017-06-09 | 2020-03-20 | 中国电器科学研究院股份有限公司 | Special capability verification method for electric vehicle electromagnetic field test and comb signal generator |
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Application publication date: 20130710 |