CN112087271B - Antenna with radio frequency measuring device - Google Patents
Antenna with radio frequency measuring device Download PDFInfo
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- CN112087271B CN112087271B CN202011070675.5A CN202011070675A CN112087271B CN 112087271 B CN112087271 B CN 112087271B CN 202011070675 A CN202011070675 A CN 202011070675A CN 112087271 B CN112087271 B CN 112087271B
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- 238000012545 processing Methods 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 239000013307 optical fiber Substances 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 230000003321 amplification Effects 0.000 claims abstract description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 abstract description 20
- 238000013461 design Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention provides an antenna with a radio frequency measuring device, which comprises an antenna and the radio frequency measuring device; the antenna comprises an antenna element, an element bracket and a signal wire; the radio frequency measurement device comprises a shielding shell, a balun, a pre-selector, a high-frequency amplification module, a mixing module, a detection module, a data processing module, an optical fiber transceiver module and a power supply module; the balun, the pre-selector, the high-frequency amplifying module, the frequency mixing module, the detection module, the data processing module, the optical fiber transceiver module and the power supply module are all arranged in the shielding shell; according to the antenna with the radio frequency measuring device, provided by the invention, by adopting an integrated design, the cable loss caused by the radio frequency cable in a conventional test system is eliminated, the influence of test uncertainty is greatly reduced, the antenna calibration and the receiver calibration can be completed at one time, the whole test is more convenient, and the test result is more accurate and reliable.
Description
Technical Field
The invention relates to the field of electromagnetic compatibility testing, in particular to an antenna with a radio frequency measuring device.
Background
Electromagnetic compatibility (EMC, electromagnetic Compatibility) refers to the ability of a device or system to function properly in its electromagnetic environment without intolerable electromagnetic interference to any device in the environment. The electromagnetic compatibility means that electromagnetic interference generated by equipment in the normal operation process to the environment cannot exceed a certain limit value, and means that the equipment has a certain degree of immunity to the electromagnetic interference in the environment.
The conventional electromagnetic compatibility testing system generally comprises an anechoic chamber, an antenna arranged inside the anechoic chamber, and an amplifier and a receiver arranged outside the anechoic chamber. The antenna receives electromagnetic signals sent by a test article and sends the electromagnetic signals to the receiver for reading through the radio frequency cable, however, the traditional receiver needs to meet the test frequency ranges of different antennas, so that the internal circuit of the receiver needs to meet the coverage frequency range of a large enough range, meanwhile, the antenna needs to meet the requirements of users on reading and debugging the detection signals, needs to be provided with a display screen, keys and other equipment, the electromagnetic compatibility of the antenna is poor, the antenna cannot be used in an anechoic chamber, and if the antenna is arranged outside the anechoic chamber, the radio frequency cable is required to be connected with the antenna, however, the radio frequency cable has certain line resistance, and the overlong radio frequency cable can attenuate the signals received by the test antenna, so that the sensitivity and the accuracy of test data are reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an antenna with a radio frequency measuring device, wherein the antenna is directly connected with the radio frequency measuring device by adopting an integrated design, so that the attenuation influence caused by a radio frequency cable is avoided, and meanwhile, the functions of the radio frequency measuring device, which are useless for a test frequency band, are reduced by reducing and deleting the coverage frequency band of the radio frequency measuring device, and part of peripheral equipment is eliminated, so that the volume of the antenna is reduced, and the antenna can be integrally arranged in an anechoic chamber or a shielding chamber for use.
The invention adopts the following technical scheme for realizing the purposes:
The invention provides an antenna with a radio frequency measuring device, which comprises an antenna and the radio frequency measuring device;
The radio frequency measuring device comprises a shielding shell, a balun, a preselector, a high-frequency amplifying module, a mixing module, a detection module, a data processing module, an optical fiber transceiver module and a power supply module;
The balun, the pre-selector, the high-frequency amplifying module, the frequency mixing module, the detection module, the data processing module, the optical fiber transceiver module and the power supply module are all arranged in the shielding shell; the antenna oscillator is fixed on the oscillator support, one end of the signal wire is connected with the antenna oscillator, and the other end of the signal wire is connected with the balun in the shielding shell;
The shielding shell is also provided with a radio frequency signal output port and a radio frequency signal input port, wherein the output end of the balun is connected with one end of the radio frequency signal output port in the shielding shell, one end of the radio frequency signal input port in the shielding shell is connected with the input end of the preselector, the output end of the preselector is connected with the input end of the high-frequency amplifying module, the output end of the high-frequency amplifying module is connected with the input end of the mixing module, the output end of the mixing module is connected with the input end of the detection module, the output end of the detection module is connected with the input end of the data processing module, the data processing module is also connected with the optical fiber transceiver module, and the shielding shell is also provided with an optical signal output interface, and the output end of the optical fiber transceiver module is connected with the optical signal output interface
The power module is used for supplying power to the balun, the pre-selector, the high-frequency amplifying module, the frequency mixing module, the detection module, the data processing module and the optical fiber transceiver module;
The coverage frequency band of the radio frequency measurement device is matched with the receiving frequency band of the antenna.
In an embodiment of the invention, the antenna with the radio frequency measurement device further comprises an input attenuator;
The input end of the input attenuator is connected with one end of the radio frequency signal output port, which is positioned outside the shielding shell, and the output end cable of the input attenuator is connected with one end of the radio frequency signal input port, which is positioned outside the shielding shell.
In an embodiment of the invention, the antenna with the radio frequency measurement device further comprises an input amplifier;
the input end of the input amplifier is connected with one end of the radio frequency signal output port, which is positioned outside the shielding shell, and the output end cable of the input amplifier is connected with one end of the radio frequency signal input port, which is positioned outside the shielding shell.
In an embodiment of the present invention, the mixing module includes a mixer, an oscillator, an intermediate frequency filter, an intermediate frequency attenuator, and an intermediate frequency amplifier;
The first input end of the mixer is connected with the output end of the high-frequency amplifying module, the second input end of the mixer is connected with the oscillator, the output end of the mixer is connected with the input end of the intermediate-frequency filter, the output end of the intermediate-frequency filter is connected with the input end of the intermediate-frequency attenuator, the output end of the intermediate-frequency attenuator is connected with the input end of the intermediate-frequency amplifier, and the output end of the intermediate-frequency amplifier is connected with the detection module.
In an embodiment of the present invention, the detection module includes a first radio frequency switch, a quasi-peak detector, an average detector, a peak detector, an effective value detector, a second radio frequency switch, and a low frequency amplifier;
the device comprises a frequency mixing module, a quasi peak detector, a first radio frequency switch, a second radio frequency switch, a third radio frequency switch, a fourth radio frequency switch, a third radio frequency switch and a fourth radio frequency switch, wherein the input end of the first radio frequency switch is connected with the output end of the frequency mixing module;
The output end of the quasi peak detector is connected with the first input end of the second radio frequency switch, the output end of the average detector is connected with the second input end of the second radio frequency switch, the output end of the peak detector is connected with the third input end of the second radio frequency switch, the output end of the effective value detector is connected with the fourth input end of the second radio frequency switch, the output end of the second radio frequency switch is connected with the input end of the low frequency amplifier, and the output end of the low frequency amplifier is connected with the data processing module;
the control end of the first radio frequency switch and the control end of the second radio frequency switch are connected with the data processing module.
In one embodiment of the invention, the shielding shell is also provided with a data interface which is connected with the data processing module;
the data interface is used for enabling the data processing module to conduct data communication with the upper computer.
In an embodiment of the invention, the shielding shell is further provided with at least one indicator lamp;
The data processing module is also used for controlling the working state of the indicator lamp.
In an embodiment of the invention, the antenna with the radio frequency measurement device further comprises a laser power supply module;
One end of the laser power supply module is connected with the laser generator, and the other end of the laser power supply module is connected with the power supply module.
Compared with the prior art, the invention has the beneficial effects that:
according to the antenna with the radio frequency measuring device, provided by the invention, by adopting an integrated design, the cable loss caused by the radio frequency cable in a conventional test system is eliminated, the influence of test uncertainty is greatly reduced, the antenna calibration and the receiver calibration can be completed at one time, the whole test is more convenient, and the test result is more accurate and reliable.
Drawings
FIG. 1 is a schematic diagram of an antenna with a RF measurement device according to an embodiment of the present invention;
Fig. 2 is a schematic diagram of a receiver according to an embodiment of the invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples, which are given for illustration only and are not to be construed as limiting the invention.
It should be noted that, in the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying 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 one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, 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 connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The invention provides an antenna with a radio frequency measuring device, as shown in fig. 1 and 2, comprising an antenna 100 and a radio frequency measuring device 200;
the radio frequency measurement device 200 comprises a shielding shell 210, a balun 220, a pre-selector 230, a high-frequency amplification module 240, a mixing module 250, a detection module 260, a data processing module 270, an optical fiber transceiver module 280 and a power supply module 290;
The balun 220, the pre-selector 230, the high-frequency amplifying module 240, the mixing module 250, the detection module 260, the data processing module 270, the optical fiber transceiver module 280 and the power module 290 are all arranged in the shielding shell 210, the antenna 100 oscillator is fixed on the oscillator support, one end of the signal wire is connected with the antenna 100 oscillator, and the other end of the signal wire is connected with the balun 220 in the shielding shell 210, and the shielding shell 210 is fixedly connected with the oscillator support;
The shielding shell 210 is also provided with a radio frequency signal output port 211 and a radio frequency signal input port 212, wherein the output end of the balun 220 is connected with one end of the radio frequency signal output port 211 positioned in the shielding shell 210, one end of the radio frequency signal input port 212 positioned in the shielding shell 210 is connected with the input end of the preselector 230, the output end of the preselector 230 is connected with the input end of the high-frequency amplifying module 240, the output end of the high-frequency amplifying module 240 is connected with the input end of the mixing module 250, the output end of the mixing module 250 is connected with the input end of the detecting module 260, the output end of the detecting module 260 is connected with the input end of the data processing module 270, the data processing module 270 is also connected with the optical fiber transceiver module 280, the shielding shell 210 is also provided with an optical signal output interface 213, and the output end of the optical fiber transceiver module 280 is connected with the optical signal output interface 213
The power module 290 is used for supplying power to the balun 220, the pre-selector 230, the high-frequency amplifying module 240, the mixing module 250, the detection module 260, the data processing module 270 and the optical fiber transceiver module 280;
the coverage frequency band of the radio frequency measurement device 200 is matched with the receiving frequency band of the antenna 100;
the detection module 260 includes a first radio frequency switch 261, a quasi-peak detector 262, an average detector 263, a peak detector 264, an effective value detector 265, a second radio frequency switch 266, and a low frequency amplifier 267;
Specifically, the input end of the first rf switch 261 is connected to the output end of the mixing module, the first output end of the first rf switch 261 is connected to the input end of the quasi-peak detector 262, the second output end of the first rf switch 261 is connected to the input end of the average value detector 263, the third output end of the first rf switch 261 is connected to the input end of the peak detector 264, and the fourth output end of the first rf switch 261 is connected to the input end of the effective value detector 265;
The output end of the quasi peak detector 262 is connected with the first input end of the second radio frequency switch 266, the output end of the average detector 263 is connected with the second input end of the second radio frequency switch 266, the output end of the peak detector 264 is connected with the third input end of the second radio frequency switch 266, the output end of the effective value detector 265 is connected with the fourth input end of the second radio frequency switch 266, the output end of the second radio frequency switch 266 is connected with the input end of the low frequency amplifier 267, and the output end of the low frequency amplifier 267 is connected with the data processing module;
The control end of the first rf switch 261 and the control end of the second rf switch 266 are connected with the data processing module.
In an embodiment of the invention, the antenna with the radio frequency measurement device further comprises an input attenuator;
wherein, the input end of the input attenuator is connected to one end of the rf signal output port 211 located outside the shielding shell 210, and the output end cable of the input attenuator is connected to one end of the rf signal input port 212 located outside the shielding shell 210.
In an embodiment of the invention, the antenna with the radio frequency measurement device further comprises an input amplifier;
Wherein, the input end of the input amplifier is connected to an end of the rf signal output port 211 located outside the shielding shell 210, and the output end cable of the input amplifier is connected to an end of the rf signal input port 212 located outside the shielding shell 210.
In an embodiment of the present invention, a data interface is further disposed on the shielding shell 210, and the data interface is connected to the data processing module 270;
the data interface is used for enabling the data processing module 270 to perform data communication with an upper computer.
In an embodiment of the present invention, at least one indicator light is further disposed on the shielding shell 210;
The indicator light is connected with the data processing module 270, and the data processing module 270 is also used for controlling the working state of the indicator light.
In an embodiment of the invention, the antenna with the radio frequency measurement device further comprises a laser power supply module;
one end of the laser power supply module is connected with the laser generator, and the other end of the laser power supply module is connected with the power supply module 290.
In a specific application scene of the invention, the antenna with the radio frequency measurement device is integrally arranged in an anechoic chamber or a shielding chamber for use and is connected with an upper computer arranged outside the anechoic chamber or the shielding chamber through an optical fiber;
the antenna with the radio frequency measuring device provided by the invention adopts an integrated design, so that a tester can directly start testing without debugging again when in use, during testing, the tester selects whether to be externally connected with a pre-attenuator or a pre-amplifier according to the size of a signal to be tested, and when the pre-attenuator or the pre-amplifier is not needed to be connected, the tester directly connects a radio frequency signal output port on a shielding shell with a radio frequency signal input port by using a radio frequency cable, the radio frequency measuring device 200 carries out corresponding filtering, amplification and signal processing on a received signal, and then sends the received signal to an upper computer outside an anechoic chamber through an optical fiber, and after the upper computer converts the received optical signal into an electric signal again, the upper computer displays relevant data of the received electromagnetic signal to the tester through a display screen;
When the tester needs to calibrate or overhaul the antenna, the detection equipment can be connected with the radio frequency signal output port 211 on the radio frequency measuring device to acquire the receiving signal of the antenna and verify the working state of the antenna, and when the tester needs to calibrate or overhaul the radio frequency measuring device, the detection equipment can be connected with the radio frequency signal input port 212 on the radio frequency measuring device to input an analog signal and verify the working state of the radio frequency measuring device.
The antenna with the radio frequency measuring device provided by the invention has the advantages that firstly, the coverage frequency band of the radio frequency measuring device 200 is reduced, the antenna is only matched with the receiving frequency band of the antenna 100, so that the size of each component in a receiver is effectively reduced, traditional display and control equipment such as a display screen, a keyboard and the like are eliminated, the functions of displaying a received signal of the receiver, adjusting parameters of the receiver and the like are realized by communicating with an upper computer through an optical fiber module, the radio frequency measuring device can be integrally arranged in a shielding shell to meet the requirements of electromagnetic compatibility test on the electromagnetic compatibility of auxiliary test equipment, and meanwhile, the uncertainty caused by equipment such as a radio frequency cable, a radio frequency signal connector and the like in the traditional connection is avoided, so that the accuracy of test data is further improved.
It is apparent that the above examples are only examples for the purpose of more clearly expressing the technical solution of the present invention, and are not limiting the embodiments of the present invention. It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made herein without departing from the spirit and scope of the invention. The scope of the invention is therefore intended to be covered by the appended claims.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011070675.5A CN112087271B (en) | 2020-10-09 | 2020-10-09 | Antenna with radio frequency measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011070675.5A CN112087271B (en) | 2020-10-09 | 2020-10-09 | Antenna with radio frequency measuring device |
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| CN112087271A CN112087271A (en) | 2020-12-15 |
| CN112087271B true CN112087271B (en) | 2025-01-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212305346U (en) * | 2020-10-09 | 2021-01-05 | 广州市诚臻电子科技有限公司 | An antenna with a radio frequency measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002111532A (en) * | 2000-09-29 | 2002-04-12 | Matsushita Electric Ind Co Ltd | Two-way communication module |
| CN101800363A (en) * | 2009-02-10 | 2010-08-11 | 石家庄世纪森诺通讯有限公司 | Integrated double-mode time-service active antenna and double-mode analog-digital demodulation module |
| CN105954621B (en) * | 2016-06-03 | 2019-01-01 | 广州市诚臻电子科技有限公司 | A kind of radio-frequency antenna standing-wave ratio automatic adjustment system |
| CN211426658U (en) * | 2019-10-23 | 2020-09-04 | 北京泰派斯特电子技术有限公司 | Electromagnetic compatibility test equipment |
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| CN212305346U (en) * | 2020-10-09 | 2021-01-05 | 广州市诚臻电子科技有限公司 | An antenna with a radio frequency measuring device |
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