CN114696923A - Microwave attenuation measuring instrument - Google Patents
Microwave attenuation measuring instrument Download PDFInfo
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- CN114696923A CN114696923A CN202011582759.7A CN202011582759A CN114696923A CN 114696923 A CN114696923 A CN 114696923A CN 202011582759 A CN202011582759 A CN 202011582759A CN 114696923 A CN114696923 A CN 114696923A
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- 238000006243 chemical reaction Methods 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000003044 adaptive effect Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000002238 attenuated effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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Abstract
The invention provides a microwave attenuation measuring instrument, which comprises a transmitting assembly, a receiving assembly, a control module and a display control module; the transmitting assembly, the receiving assembly and the display control module are all connected with the control module; the transmitting assembly is used for generating a target frequency signal and sending the target frequency signal to a tested piece, the receiving assembly is used for receiving and processing an attenuation signal returned by the tested piece, the processed attenuation signal is sent to the control module for calculation and outputting a measurement result, and the display control module is used for displaying the measurement result; the device solves the problems of large volume, large error caused by dependence on manpower, time consumption and labor consumption of the existing attenuation measuring equipment.
Description
Technical Field
The invention relates to the technical field of testing, in particular to a microwave attenuation measuring instrument.
Background
In daily operation, the calibration and calibration of radio frequency cables, attenuators, isolators, circulators, etc. are not isolated from microwave attenuation measurements. In daily work, however, when these microwave devices are calibrated, the devices are usually connected to the output end of a signal source, the signal source is used to provide excitation, and the other end of the signal source is connected to the input end of a spectrometer, so as to read the attenuation value of the devices. The operation is completed by a plurality of devices, and the device is large in size and not easy to carry; and the requirement on operating instruments of personnel is higher, the number of operating steps is more, the error is large, and time and labor are consumed.
Disclosure of Invention
The invention provides a microwave attenuation measuring instrument, which aims to solve the problems of large volume, large error caused by dependence on manpower, time consumption and labor consumption of the existing attenuation measuring equipment.
A microwave attenuation measuring instrument comprises a transmitting assembly, a receiving assembly, a control module and a display control module;
the transmitting assembly, the receiving assembly and the display control module are all connected with the control module;
the transmitting assembly is used for generating a target frequency signal and sending the target frequency signal to a tested piece, the receiving assembly is used for receiving and processing an attenuation signal returned by the tested piece, the processed attenuation signal is sent to the control module to be calculated and output a measuring result, and the display control module is used for displaying the measuring result.
Further, the transmitting component comprises a broadband source module, a frequency doubling module and a power control module;
the broadband source module is connected with the frequency doubling module, the frequency doubling module is connected with the power control module, and the broadband source module, the frequency doubling module and the power control module are all connected with the control module;
the broadband source module is used for generating local oscillator signals, the frequency doubling module is used for performing frequency doubling processing on the local oscillator signals and sending the local oscillator signals to the power control module, and the power control module is used for performing power adjustment on the frequency-doubled signals and generating target frequency signals.
Furthermore, the microwave attenuation measuring instrument further comprises an emission interface module, and the emission interface module is connected with the power control module and is used for connecting an adaptive cable for testing.
Further, the frequency of the target frequency signal is 6GHZ-40 GHZ.
Further, the receiving assembly comprises a down-conversion module and an AD module, and the down-conversion module and the AD module are both connected with the control module;
the down-conversion module is used for receiving an attenuation signal returned by the tested piece, performing down-conversion processing, sending the attenuation signal to the AD module for analog-to-digital conversion, generating a digital signal and sending the digital signal to the control module.
Furthermore, the microwave attenuation measuring instrument further comprises a receiving interface module, and the receiving interface module is connected with the down-conversion module and is used for being connected with an adaptive cable for testing.
The microwave attenuation measuring instrument provided by the invention solves the problems of generation of preset frequency signals, amplitude detection and measurement indication, has the capability of measuring radio frequency attenuation covering various frequency bands, has the characteristics of high detection precision, small error, miniaturization, portability, light weight and strong reliability, solves the stability requirement of measurement indexes by adopting a calibration mode before use, simplifies the operation steps and has a friendly user interface.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a microwave attenuation measuring instrument according to the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the microwave attenuation measuring instrument provided by the present invention.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Referring to fig. 1, in some embodiments, there is provided a microwave attenuation gauge comprising a transmitting assembly 1, a receiving assembly 2, a control module 3 and a display control module 4;
the transmitting assembly 1, the receiving assembly 2 and the display control module 4 are all connected with the control module 3;
the transmitting assembly 1 is used for generating a target frequency signal and sending the target frequency signal to a tested piece, the receiving assembly 2 is used for receiving an attenuation signal returned by the tested piece and processing the attenuation signal, the processed attenuation signal is sent to the control module 3 to be calculated and output a measuring result, and the display control module 4 is used for displaying the measuring result.
Referring to fig. 2, the transmitting assembly 1 includes a broadband source module 11, a frequency doubling module 12, and a power control module 13;
the broadband source module 11 is connected with the frequency doubling module 12, the frequency doubling module 12 is connected with the power control module 13, and the broadband source module 11, the frequency doubling module 12 and the power control module 13 are all connected with the control module 3;
the broadband source module 11 is configured to generate a local oscillator signal, the frequency doubling module 12 is configured to perform frequency doubling processing on the local oscillator signal and send the local oscillator signal to the power control module 13, and the power control module 13 is configured to perform power adjustment on the frequency-doubled signal to generate a target frequency signal.
The microwave attenuation measuring instrument further comprises an emission interface module 5, and the emission interface module 5 is connected with the power control module 13 and is used for being connected with an adaptive cable for testing.
The frequency of the target frequency signal is 6GHZ-40 GHZ.
The receiving component 2 comprises a down-conversion module 21 and an AD module 22, and both the down-conversion module 21 and the AD module 22 are connected with the control module 13;
the down-conversion module 21 is configured to receive an attenuated signal returned by the measured object, perform down-conversion processing, send the attenuated signal to the AD module 22 for analog-to-digital conversion, generate a digital signal, and send the digital signal to the control module 3.
Further, the microwave attenuation measuring instrument further comprises a receiving interface module 6, and the receiving interface module 6 is connected with the down-conversion module 21 and is used for connecting an adaptive cable for testing.
The display control module 4 mainly comprises a single chip microcomputer, an FPGA and peripheral circuits thereof.
The working principle of the microwave attenuation measuring instrument provided by the embodiment is as follows: the signal input interface of the tested piece 10 is connected with the transmitting interface module through an adaptive cable, the signal output interface of the tested piece is connected with the receiving interface module 6 through an adaptive cable, a user inputs a test frequency point or other parameters through the display control module 4, the broadband source module 11 generates a local oscillation signal, the local oscillation signal is processed through the frequency doubling module to generate a signal with frequency above Ku, the power of the signal is adjusted through the power control module 13 to generate a target frequency signal, the tested piece 10 receives the target frequency signal, the target frequency signal is attenuated by the tested piece 10 and then is sent to the down-conversion module 21 through the receiving interface module 6 to be processed into an intermediate frequency signal through down-conversion, the intermediate frequency signal is generated through analog-to-digital conversion of the AD module 22 to the control module 3, the measurement data is processed by the control module 3 and then is output by the display control module 4.
The transmitting assembly can output continuous wave microwave signals of 6GHz to 40GHz, and the power range is-10 dBm to 10 dBm; the receiving component carries out down-conversion processing on the signal passing through the tested piece to obtain a narrow-band intermediate frequency signal, amplitude information of the received signal can be extracted through the AD and the control circuit, and then the attenuation of the tested piece can be calculated.
The microwave attenuation measuring instrument provided by the embodiment has the radio frequency attenuation capability of measuring and covering various frequency bands, is high in detection precision, small in error, small in size, portable, light in weight and high in reliability, meets the stability requirement of measuring indexes by adopting a pre-use calibration mode, simplifies operation steps and is friendly to a user interface.
While preferred embodiments of the present invention 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 such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A microwave attenuation measuring instrument is characterized by comprising a transmitting assembly, a receiving assembly, a control module and a display control module;
the transmitting assembly, the receiving assembly and the display control module are all connected with the control module;
the transmitting assembly is used for generating a target frequency signal and sending the target frequency signal to a tested piece, the receiving assembly is used for receiving and processing an attenuation signal returned by the tested piece, the processed attenuation signal is sent to the control module to be calculated and output a measuring result, and the display control module is used for displaying the measuring result.
2. The microwave attenuation gauge of claim 1, wherein the transmitting assembly comprises a broadband source module, a frequency doubling module, and a power control module;
the broadband source module is connected with the frequency doubling module, the frequency doubling module is connected with the power control module, and the broadband source module, the frequency doubling module and the power control module are all connected with the control module;
the broadband source module is used for generating local oscillator signals, the frequency doubling module is used for carrying out frequency doubling processing on the local oscillator signals and sending the frequency doubling processed local oscillator signals to the power control module, and the power control module is used for carrying out power adjustment on the frequency doubled signals and generating target frequency signals.
3. The microwave attenuation gauge of claim 2, further comprising a transmission interface module connected to the power control module for connecting a test adapter cable.
4. A microwave attenuation gauge according to claim 1 or 3, wherein the frequency of the target frequency signal is from 6GHZ to 40 GHZ.
5. The microwave attenuation gauge according to claim 1, wherein the receiving assembly comprises a down-conversion module and an AD module, both connected to the control module;
the down-conversion module is used for receiving an attenuation signal returned by the tested piece, performing down-conversion processing, sending the attenuation signal to the AD module for analog-to-digital conversion, generating a digital signal and sending the digital signal to the control module.
6. The microwave attenuation gauge of claim 5, further comprising a receiving interface module connected to the down-conversion module for connecting a test adapter cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011582759.7A CN114696923A (en) | 2020-12-28 | 2020-12-28 | Microwave attenuation measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011582759.7A CN114696923A (en) | 2020-12-28 | 2020-12-28 | Microwave attenuation measuring instrument |
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| CN114696923A true CN114696923A (en) | 2022-07-01 |
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| CN202011582759.7A Pending CN114696923A (en) | 2020-12-28 | 2020-12-28 | Microwave attenuation measuring instrument |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204302487U (en) * | 2014-12-09 | 2015-04-29 | 西安航空电子科技有限公司 | A kind of comprehensive tester for weather radar |
| CN105004228A (en) * | 2015-08-11 | 2015-10-28 | 成都天奥测控技术有限公司 | Method and tester for testing front end of millimeter wave proximity fuse detector |
| CN108983174A (en) * | 2018-10-19 | 2018-12-11 | 陕西长岭电子科技有限责任公司 | Weather radar integral test system |
| CN208597083U (en) * | 2018-09-11 | 2019-03-12 | 广东圣大电子有限公司 | A kind of simple X-band Network Analyzer |
| US20200059803A1 (en) * | 2018-08-16 | 2020-02-20 | Rohde & Schwarz Gmbh & Co. Kg | Apparatus for measuring radio frequency power as well as method of analyzing a radio frequency signal |
-
2020
- 2020-12-28 CN CN202011582759.7A patent/CN114696923A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204302487U (en) * | 2014-12-09 | 2015-04-29 | 西安航空电子科技有限公司 | A kind of comprehensive tester for weather radar |
| CN105004228A (en) * | 2015-08-11 | 2015-10-28 | 成都天奥测控技术有限公司 | Method and tester for testing front end of millimeter wave proximity fuse detector |
| US20200059803A1 (en) * | 2018-08-16 | 2020-02-20 | Rohde & Schwarz Gmbh & Co. Kg | Apparatus for measuring radio frequency power as well as method of analyzing a radio frequency signal |
| CN208597083U (en) * | 2018-09-11 | 2019-03-12 | 广东圣大电子有限公司 | A kind of simple X-band Network Analyzer |
| CN108983174A (en) * | 2018-10-19 | 2018-12-11 | 陕西长岭电子科技有限责任公司 | Weather radar integral test system |
Non-Patent Citations (2)
| Title |
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| 刘祖深: "《高性能小数分频频率合成技术》", 31 March 2017, 西安电子科技大学出版社, pages: 318 - 322 * |
| 房少军，王钟葆: "《数字微波通信》", 28 February 2018, 大连海事大学出版社, pages: 130 - 131 * |
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