CN210007707U - satellite communication vehicle antenna radio frequency test system - Google Patents
satellite communication vehicle antenna radio frequency test system Download PDFInfo
- Publication number
- CN210007707U CN210007707U CN201920841324.6U CN201920841324U CN210007707U CN 210007707 U CN210007707 U CN 210007707U CN 201920841324 U CN201920841324 U CN 201920841324U CN 210007707 U CN210007707 U CN 210007707U
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- satellite communication
- antenna
- test system
- frequency test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to an satellite communication car antenna radio frequency test system, including radio frequency signal source, power amplifier, low noise amplifier, band pass filter and spectral analysis appearance, wherein radio frequency signal source's output is connected with power amplifier's input, and low noise amplifier's output is connected with band pass filter's input, and band pass filter's output is connected with spectral analysis appearance's input, the utility model provides an antenna radio frequency test system utilizes a plurality of circuit parts to realize the radio frequency test to satellite communication car antenna, and the in-process of carrying out the radio frequency test need not to disassemble satellite communication car antenna and removes to the darkroom and test again, thereby directly arranges the radio frequency test system and carry out the normal position test on satellite communication car and avoid causing the damage to the antenna because of need repeatedly disassemble, install the antenna, the utility model provides an antenna radio frequency test system can carry out stray characteristic test, modulation characteristic test, link attenuation value test, antenna gain contrast test etc. to the antenna.
Description
Technical Field
The utility model relates to the field of communication technology, more specifically relates to kinds of satellite communication car antenna radio frequency test system.
Background
The satellite communication vehicle is used as an important emergency communication means, and digital video and audio signals coming out of a relay vehicle or a studio are transmitted to a synchronous communication satellite after being subjected to coding modulation and amplification processing by the satellite communication vehicle, and are transmitted back to a television station through a transponder on the synchronous communication satellite. For years, due to the characteristics that the satellite communication vehicle is little affected by weather and the signal transmission is efficient and stable, the satellite communication vehicle is used as a main road transmission channel in a plurality of large reports, important rebroadcasting activities and live competition. Various performances and indexes of the satellite communication vehicle antenna play a decisive role in stable transmission of satellite signals.
The assembly requirement and the precision of the satellite communication vehicle antenna play a key role in the receiving quality of the satellite communication vehicle antenna, if the antenna is disassembled and reinstalled for multiple times for radio frequency performance test, part of devices of the satellite communication vehicle are deformed and lost, and unnecessary loss is brought, and the satellite communication vehicle antenna has large volume (the maximum caliber width is 4.5m) and heavy weight (about 870kg), and the surface of the satellite communication vehicle antenna is coated with a coating and cannot be damaged, so that when the satellite communication vehicle antenna is installed and fixed, the antenna is disassembled and sent to the microwave dark room for radio frequency test, time and labor are wasted, and -fixed damage can be caused to the physical structure of the antenna.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve prior art and need disassemble the technical defect of antenna when carrying out the radio frequency characteristic test to satellite communication car antenna, provide kinds of satellite communication car antenna radio frequency test system.
In order to realize the purpose of the utility model, the technical proposal is that:
satellite communication vehicle antenna radio frequency test system, including radio frequency signal source, power amplifier, low noise amplifier, band pass filter and spectrum analyzer, wherein the output of radio frequency signal source is connected with power amplifier's input, and the output of low noise amplifier is connected with band pass filter's input, and band pass filter's output is connected with spectrum analyzer's input.
The utility model provides an antenna radio frequency test system is before using, at first couples together power amplifier's output and the feed of satellite communication car antenna, then couples together low noise amplifier's input and the feed of satellite communication car antenna.
The utility model provides an antenna radio frequency test system when carrying out the radio frequency test to the antenna, produces the carrier signal who sets for the frequency through the radio frequency signal source, and power amplifier enlargies the carrier signal who produces and gives satellite commonly used through satellite communication car antenna transmission. The satellite communication vehicle antenna receives feedback signals of commonly used satellites, amplifies the feedback signals through a low noise amplifier, filters the feedback signals through a band-pass filter and transmits the feedback signals to a spectrum analyzer, and the spectrum analyzer analyzes the feedback signals and outputs corresponding test results.
Preferably, the power amplifier employs a TGA8300-SCC gain module.
Preferably, the operating frequency range of the TGA8300-SCC gain module is 2GHz-18GHz, the output power is 20dBm, the amplification gain is 7.5dB, and the input-output standing wave ratio is 1.5: 1, the working voltage is 6V.
Preferably, the low noise amplifier employs a TGA8344-SCC low noise amplifier.
Preferably, the operating frequency range of the TGA8344-SCC low noise amplifier is 2GHz-18GHz, the maximum output power is 16dBm, the amplification gain is 19dB, and the output standing wave ratio is 1.6: 1.
preferably, the band-pass filter adopts a cavity WQBPF 3742.
Preferably, the working frequency range of the cavity WQBPF3742 is 3.7GHz-4.2GHz, the standing-wave ratio is 2.0, and the in-band insertion loss is 2.0.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an antenna radio frequency test system utilizes a plurality of circuit parts to realize the radio frequency test to satellite communication car antenna, and the in-process of carrying out the radio frequency test need not to disassemble satellite communication car antenna and removes to the darkroom and test again, thereby directly arranges the radio frequency test system and carry out the normal position test on satellite communication car and avoid repeatedly disassembling, install the antenna and cause the damage to the antenna because of needing. The utility model provides an antenna radio frequency test system can carry out stray characteristic test, modulation characteristic test, link attenuation value test, antenna gain contrast test etc. to the antenna.
Drawings
Fig. 1 is a schematic structural diagram of a test system.
Fig. 2 is a schematic diagram of the connection between the rf signal source and the power amplifier.
Fig. 3 is a schematic diagram of the connection of the low noise amplifier, the band pass filter and the spectrum analyzer.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
the invention is further illustrated in step with reference to the following figures and examples.
Example 1
As shown in FIG. 1, the satellite communication vehicle antenna radio frequency test system comprises a radio frequency signal source, a power amplifier, a low noise amplifier, a band-pass filter and a spectrum analyzer, wherein an output end of the radio frequency signal source is connected with an input end of the power amplifier, an output end of the low noise amplifier is connected with an input end of the band-pass filter, and an output end of the band-pass filter is connected with an input end of the spectrum analyzer.
The utility model provides an antenna radio frequency test system is before using, at first couples together power amplifier's output and the feed of satellite communication car antenna (being the antenna of being surveyed in fig. 1), then couples together low noise amplifier's input and the feed of satellite communication car antenna.
The utility model provides an antenna radio frequency test system when carrying out the radio frequency test to the antenna, produces the carrier signal who sets for the frequency through the radio frequency signal source, and power amplifier enlargies the carrier signal who produces and gives satellite commonly used through satellite communication car antenna transmission. The satellite communication vehicle antenna receives feedback signals of commonly used satellites, amplifies the feedback signals through a low noise amplifier, filters the feedback signals through a band-pass filter and transmits the feedback signals to a spectrum analyzer, and the spectrum analyzer analyzes the feedback signals and outputs corresponding test results.
Example 2
This embodiment is further defined by step on the basis of embodiment 1, and specifically includes:
in this embodiment, as shown in fig. 2, the TGA8300-SCC gain module is adopted for the power amplifier.
In this embodiment, the operating frequency range of the TGA8300-SCC gain module is 2GHz-18GHz, the output power is 20dBm, the amplification gain is 7.5dB, and the input-output standing wave ratio is 1.5: 1, the working voltage is 6V.
In this embodiment, as shown in fig. 3, the low noise amplifier employs a TGA8344-SCC low noise amplifier.
In this embodiment, the operating frequency range of the TGA8344-SCC low noise amplifier is 2GHz-18GHz, the maximum output power is 16dBm, the amplification gain is 19dB, and the output standing-wave ratio is 1.6: 1.
in this embodiment, as shown in fig. 3, the band-pass filter employs a cavity WQBPF 3742.
In this embodiment, the working frequency range of the cavity WQBPF3742 is 3.7GHz-4.2GHz, the standing-wave ratio is 2.0, and the in-band insertion loss is 2.0.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
- The radio frequency test system for the antenna of the satellite communication vehicle is characterized by comprising a radio frequency signal source, a power amplifier, a low noise amplifier, a band-pass filter and a spectrum analyzer, wherein the output end of the radio frequency signal source is connected with the input end of the power amplifier, the output end of the low noise amplifier is connected with the input end of the band-pass filter, and the output end of the band-pass filter is connected with the input end of the spectrum analyzer.
- 2. The satellite communication vehicle antenna radio frequency test system of claim 1, wherein: the power amplifier employs a TGA8300-SCC gain module.
- 3. The satellite communication vehicle antenna radio frequency test system of claim 2, wherein: the TGA8300-SCC gain module has a working frequency range of 2GHz-18GHz, output power of 20dBm, amplification gain of 7.5dB, and input-output standing wave ratio of 1.5: 1, the working voltage is 6V.
- 4. The satellite communication vehicle antenna radio frequency test system of claim 1, wherein: the low noise amplifier adopts a TGA8344-SCC low noise amplifier.
- 5. The satellite communication vehicle antenna radio frequency test system of claim 4, wherein: the working frequency range of the TGA8344-SCC low-noise amplifier is 2GHz-18GHz, the maximum output power is 16dBm, the amplification gain is 19dB, and the output standing-wave ratio is 1.6: 1.
- 6. the satellite communication vehicle antenna radio frequency test system of claim 1, wherein: the band-pass filter adopts a cavity WQBPF 3742.
- 7. The satellite communication vehicle antenna radio frequency test system of claim 6, wherein: the working frequency range of the cavity WQBPF3742 is 3.7GHz-4.2GHz, the standing-wave ratio is 2.0, and the in-band insertion loss is 2.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920841324.6U CN210007707U (en) | 2019-06-04 | 2019-06-04 | satellite communication vehicle antenna radio frequency test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920841324.6U CN210007707U (en) | 2019-06-04 | 2019-06-04 | satellite communication vehicle antenna radio frequency test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210007707U true CN210007707U (en) | 2020-01-31 |
Family
ID=69309063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920841324.6U Active CN210007707U (en) | 2019-06-04 | 2019-06-04 | satellite communication vehicle antenna radio frequency test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210007707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440931A (en) * | 2022-01-29 | 2022-05-06 | 重庆长安汽车股份有限公司 | Vehicle-mounted navigation positioning performance debugging method based on electromagnetic environment of whole vehicle |
-
2019
- 2019-06-04 CN CN201920841324.6U patent/CN210007707U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440931A (en) * | 2022-01-29 | 2022-05-06 | 重庆长安汽车股份有限公司 | Vehicle-mounted navigation positioning performance debugging method based on electromagnetic environment of whole vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106712851B (en) | Distributed wireless signal coverage system | |
| CN102404879B (en) | A kind of communication terminal | |
| CN201499169U (en) | High integration level mobile communication optical fiber repeater station | |
| CN210007707U (en) | satellite communication vehicle antenna radio frequency test system | |
| WO2023011288A1 (en) | Signal processing system and method | |
| CN205179054U (en) | Compatible TDD of full bandwidth of multimode and FDD's two -way enlarged wireless repeater system | |
| CN108011641A (en) | A kind of aerial retransmission unit of LTE base station | |
| CN207442845U (en) | A kind of new multiband WiMAX repeater | |
| CN201639582U (en) | Repeater solving mobile object coverage | |
| CN113114283A (en) | Fully-digitalized high-efficiency VHF radio station transmitter | |
| CN203219304U (en) | Energy-efficient multicarrier digital fiber microwave remote extension system | |
| CN203574664U (en) | LTE digital double-channel transmission apparatus | |
| CN202395771U (en) | Multimode and multiband repeater | |
| CN201781489U (en) | Wireless repeater with function of eliminating feedback interference signals | |
| CN213367767U (en) | Roland-C signal receiving all-in-one machine | |
| CN210246725U (en) | C-band receiving channel assembly | |
| KR101514985B1 (en) | Energy dispersion consuming type hybrid radio communications repeater | |
| CN202121587U (en) | Companding remote stretch system for energy-saving multicarrier digital optical fiber | |
| CN202269020U (en) | CATV (community antenna television) wireless signal distribution system using frequency conversion technology | |
| CN201639583U (en) | Frequency-selecting repeater | |
| CN205921592U (en) | Radio frequency digital module in integration | |
| CN109039429B (en) | Signal processing method for satellite communication | |
| CN214069926U (en) | L-band communication simulator receiving link | |
| CN117118477B (en) | LTE, NB-IoT, loRa and Beidou multi-radio frequency fusion circuit, signal processing method and application | |
| CN103997382A (en) | Circuit and method for detecting power of transmitting signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |