CN203479903U - Universal spectrum analyzer tracking source system - Google Patents
Universal spectrum analyzer tracking source system Download PDFInfo
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- CN203479903U CN203479903U CN201320594199.6U CN201320594199U CN203479903U CN 203479903 U CN203479903 U CN 203479903U CN 201320594199 U CN201320594199 U CN 201320594199U CN 203479903 U CN203479903 U CN 203479903U
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Abstract
The utility model provides a universal spectrum analyzer tracking source system, which comprises an input port one, an input port two and an output port three. An isolation amplifier module, a mixing frequency module, an amplitude stabilization module and an attenuation module are sequentially connected between the input port one and the output port three; and the input port two is sequentially connected with a signal source module and the mixing frequency module. The system further comprises an input device, a control module and a display device sequentially connected, and the control module is also connected with the signal source module and the attenuation module respectively. The input frequency of the reference signal, the output frequency of the signal source module and the attenuation amount of the attenuation module can be set according to the type of the external spectrum analyzer, the system can be applied to different types of external spectrum analyzers, and good compatibility is provided. The system is provided with the reference signal source, and the reference signal can be provided for the spectrum analyzer. When the system is used in match with the spectrum analyzer, the system can be expanded into a scalar network analyzer, the use range is expanded, multiple purposes can be realized in one system, and resources are saved.
Description
Technical field
The invention belongs to testing tool technical field, relate to the general tracing source system of a kind of spectrum analyzer.
Background technology
Spectrum analyzer is the indispensable means that radio signal is measured, and is the common tool of being engaged in electronic product research and development, producing, check.Therefore application is very extensive, is called as slip-stick artist's radio frequency multimeter.When spectrum analyzer has been equipped with after tracing source system, can test circuit and the frequency domain response of device, possessed the function of part scalar network analyzer.
Yet spectrum analyzer tracing source is all by each producer's self-developing at present, be difficult to each other compatible.A lot of incorporated businesses and scientific research institution have purchased various types of frequency spectrographs, as need configuration tracing source, need to purchase separately respectively, and cost is very high.
Utility model content
Incompatible in order to solve in above-mentioned prior art tracing source and spectrum analyzer, prepare separately the high defect of respective type tracing source cost, the utility model aims to provide the general tracing source system of a kind of spectrum analyzer, there is good compatibility, can be used in conjunction with Multiple Type frequency spectrograph, and be expanded to scalar network analyzer.
The utility model is achieved through the following technical solutions:
The general tracing source system of a kind of spectrum analyzer, comprise input port one, input port two and output port three, between input port one and output port three, be connected with Isolation Amplifier Module, frequency mixing module, fixed ampllitude module and attenuation module in turn, input port two is connected successively with signal source module, frequency mixing module, also comprise the input media, control module and the display device that connect successively, control module is also connected with signal source module, attenuation module respectively.
Further, also comprise output port one, output port two and reference signal source module, described output port one is all connected with reference signal source module with output port two.
Further, the output frequency of signal source module is 150MHz-4400MHz.
Further, the output frequency of reference signal source module is 10MHz.
The utility model is according to the concrete model of outside spectrum analyzer, can utilize load module that the actual incoming frequency of reference signal, the output frequency of required signal source module are set, and the required damping capacity of attenuation module, by control module according to inputted concrete data, control signal source module synthesizes required new signal, and control attenuation module and carry out required decay, thereby the spectrum analyzer of adaptation different model has good compatible performance.Meanwhile, the utility model carries derived reference signal, can be simultaneously for spectrum analyzer provides reference signal.In addition, while being used in conjunction with spectrum analyzer, the utility model can expand to scalar network analyzer, expands its usable range, and a tractor serves several purposes, economizes on resources.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the general tracing source system of the utility model spectrum analyzer;
Fig. 2 is that the first of the present utility model is used view;
Fig. 3 is that the second of the present utility model is used view.
Wherein, 1: tracing source system; 2: spectrum analyzer; 1-1: Isolation Amplifier Module; 1-2: frequency mixing module; 1-3: signal source module; 1-4: reference signal source module; 1-5: control module; 1-6: fixed ampllitude module; 1-7: attenuation module; 1-8: display device; 1-9: input media; A: input port one; B: input port two; C: output port one; D: output port two; E: output port three; A: spectrum analyzer swept-frequency signal output port; B: spectrum analyzer reference signal output port; C: spectrum analyzer reference signal input port.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further details.
As shown in Figure 1, the utility model comprises input port one a, input port two b and output port three e, between described input port one a and output port three e, be connected with Isolation Amplifier Module 1-1, frequency mixing module 1-2, fixed ampllitude module 1-6 and attenuation module 1-7 in turn, described input port two b are connected successively with signal source module 1-3, frequency mixing module 1-2, also comprise input media 1-9, the control module 1-5 and the display device 1-8 that connect successively, described control module 1-5 is also connected with signal source module 1-3, attenuation module 1-7 respectively.
Also comprise output port one c, output port two d and reference signal source module 1-4, described output port one c is all connected with reference signal source module 1-4 with output port two d.
Wherein, outside swept-frequency signal enters Isolation Amplifier Module 1-1 through input port one a of tracing source system 1, amplifies and isolates.According to the type of outside spectrum analyzer 2, incoming frequency and the required output frequency of signal source module 1-3 of reference signal is set by load module 1-9.Reference signal is through input port two b entering signal source module 1-3, and through control module 1-5 computing, it is the new signal of the synthetic required corresponding frequencies of benchmark that signal source module 1-3 be take reference signal, completes tracing source setting.The signal of signal source module 1-3 output all enters frequency mixing module 1-2 with the signal from Isolation Amplifier Module 1-1, frequency mixing module 1-2 carries out difference frequency calculating to two paths of signals, the frequency of the difference frequency signal of exporting is the output frequency of the output frequency subtraction signal source module 1-3 of Isolation Amplifier Module 1-1, obtains required tracking signal.This tracking signal is due to through repeatedly transmission process, and its power changes and fluctuation within the specific limits.Tracking signal enters fixed ampllitude module 1-6 and attenuation module 1-7 successively, and fixed ampllitude module 1-6 makes the tracking signal of inputting fixed ampllitude module 1-6 maintain specific performance number.By load module 1-9, the required damping capacity of attenuation module 1-7 is set, and controls by control module 1-5 the decay of carrying out respective amount.Final signal is from output port three e outputs.
The utility model is according to the model of the outside spectrum analyzer 2 that is used in conjunction with it, utilizes load module 1-9 that the actual incoming frequency of reference signal and the output frequency of required signal source module 1-3 are set.Wherein, the frequency of external reference signal source output is generally between 1MHz-250MHz, and this frequency range has covered the reference output frequency of most of existing spectrum analyzer 2.The reference signal frequency that in the utility model, reference signal source module 1-4 provides is 10MHz, the output frequency of signal source module 1-3 is set within the scope of 150MHz-4400MHz, can meet the requirement of the first intermediate frequency of most of spectrum analyzer 2, thereby adapt to different spectrum analyzer 2.
In addition, Isolation Amplifier Module has the gain that is greater than 20dB in 2-10G frequency range, and output signal is greater than 10dBm.Because the first intermediate frequency of most of spectrum analyzer 2 is between 1-5G, thereby the first local oscillator is carried out frequency sweep between 2-10G.The first local oscillator output signal of spectrum analyzer 2 approximately-10dBm, after amplify in 20dB broadband, reach the input requirements of frequency mixing module.
In conjunction with Fig. 1 and Fig. 2, when providing reference signal by outside spectrum analyzer 2, the swept-frequency signal output port 11 of outside spectrum analyzer 2 is inputted swept-frequency signal through input port one a of tracing source system 1, swept-frequency signal is amplified and is carried out, after signal isolation, entering frequency mixing module 1-2 through Isolation Amplifier Module 1-1.The reference signal output port B of outside spectrum analyzer 2 inputs with reference to signal through input port two b of tracing source system 1, control module 1-5 is according to the incoming frequency of the reference signal arranging through load module 1-9, control signal source module 1-3 be take reference signal as benchmark, the synthetic new signal that can meet the first intermediate frequency of most of spectrum analyzer 2, completes tracing source setting.Two paths of signals from Isolation Amplifier Module 1-1 and signal source module 1-3 directly enters frequency mixing module 1-2, after calculating, difference frequency obtains required tracking signal, this tracking signal enters successively fixed ampllitude module 1-6 and attenuation module 1-7 carries out fixed ampllitude and the decay control of signal, finally from output port three e outputs.
The swept-frequency signal of outside spectrum analyzer 2 outputs is-10dBm, frequency range is 2521.4MHz-4721.4MHz, enter tracing source system 1, through Isolation Amplifier Module 1-1, isolate and amplify 25dB, the signal power of being exported by Isolation Amplifier Module 1-1 is+15dBm that frequency range is 2521.4MHz-4721.4MHz.By outside spectrum analyzer 2, provide derived reference signal, the reference signal of exporting is 50MHz, enters tracing source system 1.The signal frequency 2521.4MHz that the reference signal frequency 50MHz of actual input tracing source system 1 is set and needs signal source module 1-3 to export by load module 1-9, under the control of control module 1-5, the new signal that signal source module 1-3 is 2521.4MHz through computing output corresponding frequencies.Then the two paths of signals that comes from Isolation Amplifier Module 1-1 and signal source module 1-3 enters frequency mixing module 1-2 simultaneously and carries out difference frequency calculating, and frequency mixing module 1-2 output frequency is 0-2200MHz, and power fluctuates within the scope of 0 ± 2dB.This signal enters frequency stabilization module 1-6, and power is maintained to 0dBm.Then enter attenuation module 1-7, by load module 1-9, required damping capacity 70dB is set, under the control of control module 1-5, attenuation module 1-7 carries out the decay that respective attenuation amount is 70dB, by output port three e output frequencies, be-70dBm finally the tracking signal that frequency is 0-2200MHz.
In conjunction with Fig. 1 and Fig. 3, by tracing source system 1, carry derived reference signal.The swept-frequency signal output port 11 of outside spectrum analyzer 2 is inputted swept-frequency signal through input port one a of tracing source system 1, and swept-frequency signal is amplified and carried out signal isolation by Isolation Amplifier Module 1-1.The reference signal source module 1-4 of tracing source system 1 exports through output port one c and output port two d respectively with reference to signal, one tunnel reference signal is through the reference signal input port C of outside spectrum analyzer 2 input, and another road reference signal is through the input port two b inputs of tracing source system 1.Control module 1-5 is according to the incoming frequency of the reference signal arranging through load module 1-9, and control signal source module 1-3 be take reference signal as benchmark, and the synthetic new signal that can meet the first intermediate frequency of most of spectrum analyzer 2, completes tracing source setting.Two paths of signals from Isolation Amplifier Module 1-1 and signal source module 1-3 directly enters frequency mixing module 1-2, after calculating, difference frequency obtains required tracking signal, this tracking signal enters successively fixed ampllitude module 1-6 and attenuation module 1-7 carries out fixed ampllitude and the decay control of signal, finally from output port three e outputs.
The swept-frequency signal of outside spectrum analyzer 2 outputs is-10dBm, frequency range is 2521.4MHz-4721.4MHz, enter tracing source system 1, through Isolation Amplifier Module 1-1, isolate and amplify 25dB, the signal power of being exported by Isolation Amplifier Module 1-1 is+15dBm that frequency range is 2521.4MHz-4721.4MHz.It is the reference signal of 10MHz that the reference signal source module 1-4 being carried by tracing source system 1 provides frequency, inputs respectively the reference signal input port C of outside spectrum analyzer 2, and input port two b of tracing source system 1.The reference signal frequency 10MHz of actual input tracing source system 1 is set by load module 1-9, with the signal frequency 2521.4MHz that needs signal source module 1-3 output, under the control of control module 1-5, the new signal that signal source module 1-3 is 2521.4MHz through computing output corresponding frequencies.After come from Isolation Amplifier Module 1-1 and signal source module 1-3 two paths of signals enter frequency mixing module 1-2 simultaneously and carry out difference frequency calculating, frequency mixing module 1-2 output frequency is 0-2200MHz, power fluctuates within the scope of 0 ± 2dB.This signal enters frequency stabilization module 1-6, and power is maintained to 0dBm.Then enter attenuation module 1-7, by load module 1-9, required damping capacity 70dB is set, under the control of control module 1-5, attenuation module 1-7 carries out the decay that respective attenuation amount is 70dB, by output port three e output frequencies, be-70dBm finally the tracking signal that frequency is 0-2200MHz.
The utility model is according to the concrete model of outside spectrum analyzer, can utilize load module that the actual incoming frequency of reference signal, the output frequency of required signal source module are set, and the required damping capacity of attenuation module, by control module according to inputted concrete data, control signal source module synthesizes required new signal, and control attenuation module and carry out required decay, thereby the spectrum analyzer of adaptation different model has good compatible performance.In addition, while being used in conjunction with spectrum analyzer, the utility model can expand to scalar network analyzer, expands its usable range, and a tractor serves several purposes, economizes on resources.
Claims (4)
1. the general tracing source system of spectrum analyzer, it is characterized in that, comprise input port one (a), input port two (b) and output port three (e), between described input port one (a) and output port three (e), be connected with Isolation Amplifier Module (1-1) in turn, frequency mixing module (1-2), fixed ampllitude module (1-6) and attenuation module (1-7), described input port two (b) and signal source module (1-3), frequency mixing module (1-2) connects successively, also comprise the input media (1-9) connecting successively, control module (1-5) and display device (1-8), described control module (1-5) also respectively with signal source module (1-3), attenuation module (1-7) connects.
2. the general tracing source system of spectrum analyzer according to claim 1, it is characterized in that, also comprise output port one (c), output port two (d) and reference signal source module (1-4), described output port one (c) is all connected with reference signal source module (1-4) with output port two (d).
3. the general tracing source system of spectrum analyzer according to claim 1 and 2, is characterized in that, the output frequency of described signal source module (1-3) is 150MHz-4400MHz.
4. the general tracing source system of spectrum analyzer according to claim 2, is characterized in that, the output frequency of described reference signal source module (1-4) is 10MHz.
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| CN201320594199.6U CN203479903U (en) | 2013-09-25 | 2013-09-25 | Universal spectrum analyzer tracking source system |
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| CN201320594199.6U CN203479903U (en) | 2013-09-25 | 2013-09-25 | Universal spectrum analyzer tracking source system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807276A (en) * | 2017-10-12 | 2018-03-16 | 安徽白鹭电子科技有限公司 | A kind of Real-time Spectrum Analyzer tracks source design method |
| CN109932564A (en) * | 2019-04-03 | 2019-06-25 | 深圳市鼎阳科技有限公司 | A kind of spectrum analyzer in integrated tracking source |
| CN110672920A (en) * | 2019-12-06 | 2020-01-10 | 深圳市鼎阳科技股份有限公司 | Spectrum analyzer with temperature compensation function |
-
2013
- 2013-09-25 CN CN201320594199.6U patent/CN203479903U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807276A (en) * | 2017-10-12 | 2018-03-16 | 安徽白鹭电子科技有限公司 | A kind of Real-time Spectrum Analyzer tracks source design method |
| CN107807276B (en) * | 2017-10-12 | 2019-10-08 | 安徽白鹭电子科技有限公司 | A kind of Real-time Spectrum Analyzer tracking source design method |
| CN109932564A (en) * | 2019-04-03 | 2019-06-25 | 深圳市鼎阳科技有限公司 | A kind of spectrum analyzer in integrated tracking source |
| CN109932564B (en) * | 2019-04-03 | 2021-02-26 | 深圳市鼎阳科技股份有限公司 | Spectrum analyzer integrated with tracking source |
| CN110672920A (en) * | 2019-12-06 | 2020-01-10 | 深圳市鼎阳科技股份有限公司 | Spectrum analyzer with temperature compensation function |
| CN110672920B (en) * | 2019-12-06 | 2020-03-31 | 深圳市鼎阳科技股份有限公司 | Spectrum analyzer with temperature compensation function |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140925 |
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| EXPY | Termination of patent right or utility model |