CN204103928U - A kind of feeder tester - Google Patents
A kind of feeder tester Download PDFInfo
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- CN204103928U CN204103928U CN201420416422.2U CN201420416422U CN204103928U CN 204103928 U CN204103928 U CN 204103928U CN 201420416422 U CN201420416422 U CN 201420416422U CN 204103928 U CN204103928 U CN 204103928U
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Abstract
The utility model relates to technical field of communication equipment, particularly relates to a kind of feeder tester.Feeder tester comprises radio-frequency signal source, directional coupler, radio frequency reception channel, signal processing apparatus, central processing unit and human-computer interaction device; Described directional coupler is accepted passage with radio-frequency signal source, radio frequency and is connected by holding wire, described radio frequency reception channel is connected by holding wire with signal processing apparatus, signal processing apparatus is connected by holding wire with central processing unit, and described human-computer interaction device is connected by holding wire with central processing unit.This tester can realize performing accurate frequency standing-wave ratio and return loss; The measurement of DTF standing-wave ratio and return loss and cable loss.And this tester operating frequency is wide, most of digital communication system requirement can be met, there is the wider scope of application.
Description
Technical field
The utility model relates to technical field of communication equipment, particularly relates to a kind of feeder tester.
Background technology
Now, radio communication penetrates into each corner in the world.2G, 3G, 4G mobile communications network at global every country just in vigorous growth.
In the running of mobile communications network, base station transmit signals and the signal accepting to be launched by travelling carriage have all been come by antenna transmission system, and therefore the installation quality of antenna transmission system and the quality of ruuning situation will directly have influence on speech quality, the covering of wireless signal and the operating state of transceiver.
The fault of antenna transmission system mainly occurs on antenna, cable and joint simultaneously, especially, if do not conform to the impeded drainage that specification causes antenna when installing, antenna internal water accumulation can be caused when rainy day, if the installation of butt joint does not meet specification, be more prone at weather that is moist or that rain the water inlet causing joint, thus, can affect to the transmission of signal, if can not to go forward side by side row relax by Timeliness coverage, then further can damage feeder line.
For the installation of the problems referred to above at mobile communications network, safeguard in construction survey, the exploitation of Wireless Telecom Equipment, in production maintenance activity., work whether reliable to the connection of feeder is often needed whether normally to detect.But the usual complicated structure of existing checkout equipment, price is high, volume is large, weight is high, and use inconvenient.
For the problems referred to above, we need a kind of volume is little, lightweight, portable, price is low, easy to use feeder tester.
Utility model content
The purpose of this utility model is to propose a kind of feeder tester, volume is little, lightweight, portable, price is low, easy to use feature that it has.
For reaching this object, the utility model by the following technical solutions:
A kind of feeder tester, it comprises radio-frequency signal source, directional coupler, radio frequency reception channel, signal processing apparatus, central processing unit and human-computer interaction device; Described directional coupler is accepted passage with radio-frequency signal source, radio frequency and is connected by holding wire, described radio frequency reception channel is connected by holding wire with signal processing apparatus, signal processing apparatus is connected by holding wire with central processing unit, and described human-computer interaction device is connected by holding wire with central processing unit.
As a kind of preferred version of above-mentioned feeder tester, described radio frequency reception channel comprises two-way for radiofrequency signal being converted to the treatment channel of baseband signal.
As a kind of preferred version of above-mentioned feeder tester, described signal processing apparatus comprises 14 ADC for completing analog and digital signal conversion.
As a kind of preferred version of above-mentioned feeder tester, described central processing unit comprises dsp chip and ARM chip.
As a kind of preferred version of above-mentioned feeder tester, also comprise for each composition structure power module of powering of tester.
As a kind of preferred version of above-mentioned feeder tester, also comprise the storage device stored for data.
As a kind of preferred version of above-mentioned feeder tester, also comprise for transfer of data, or carry out mutual USB interface with the data in storage device.
As a kind of preferred version of above-mentioned feeder tester, described human-computer interaction device is the touch-screen with input and Presentation Function.
The beneficial effects of the utility model are: this application provides a kind of feeder tester, and it can realize performing accurate frequency standing-wave ratio and return loss by the cooperation between all modules; DTF standing-wave ratio and return loss and cable loss are measured.And this tester operating frequency is wide, most of digital communication system requirement can be met, as GSM/EDGE, CDMA/EV-DO, WCDMA/HSDPA, WiMAX and TD-SCDMA, LTE etc.Test wide dynamic range, standing-wave ratio scope 1 ~ 65dB; Return loss scope 0 ~ 60dB; Cable loss scope 0 ~ 30dB.The longest detectable cable length is 1500 meters, and resolution can be less than 0.1 meter.This tester can be applied in multiple occasion, and the site operation personnel of operator can verify whether antenna transmission system connects reliably; Cable and antenna producer also can verify that whether the index (standing-wave ratio, cable loss) of corresponding product is normal etc.The feeder tester that theres is provided of the application, has the advantages that volume is little, lightweight, portable, price is low, easy to use in a word.
Accompanying drawing explanation
Fig. 1 is the structural representation of the feeder tester that the utility model embodiment provides;
Wherein:
1: radio-frequency signal source; 2: directional coupler; 3: radio frequency reception channel; 4: signal processing apparatus; 5: central processing unit; 6: human-computer interaction device; 7: power module.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of feeder tester, it comprises radio-frequency signal source 1, directional coupler 2, radio frequency reception channel 3, signal processing apparatus 4, central processing unit 5 and human-computer interaction device 6; Comprise radio-frequency signal source 1, directional coupler 2, radio frequency reception channel 3, signal processing apparatus 4, central processing unit 5 and human-computer interaction device 6; Directional coupler 2 and radio-frequency signal source 1, radio frequency are accepted passage 3 and are connected by holding wire, radio frequency reception channel 3 is connected by holding wire with signal processing apparatus 4, signal processing apparatus 4 is connected by holding wire with central processing unit 5, and human-computer interaction device 6 is connected by holding wire with central processing unit 5.
The transmitting procedure that in above-mentioned feeder tester, signal is concrete is: the frequency sweep radiofrequency signal produced by radio-frequency signal source 1 is launched by test port, a reflected signal finally can be produced through antenna transmission system, this reflected signal is received by directional coupler 2 and is distinguished and transmits and reflected radio-frequency signal, then become the baseband signal that can identify through radio frequency reception channel 3, this baseband signal finally passes to central processing unit 5 and signal processing apparatus 4.
In order to be further detailed above-mentioned tester, present invention also provides above-mentioned tester concrete judge whether antenna feeding system connects mode reliable, working properly.
After feeder tester obtains the return loss of N number of Frequency point or standing-wave ratio test data (these data are above-mentioned processor to the result of testing the signal that obtains and processing), utilize FDR technology to carry out Fourier transform and relevant treatment to these test datas, just can obtain and the relevant return loss of distance or standing-wave ratio index.Whether whether user, by observing the related performance indicators of different distance, just can determine this antenna transmission system and connect reliable, work normal.
It should be noted that, the above-mentioned process to data comprises is amplified or digital-to-analogue conversion processing signal by circuit, calculation procedure can be related in data processing, analytic process simultaneously, but this calculation procedure is existing program, it not the essential features realizing the present utility model object.
In order to improve the convenience of the certainty of measurement of the feeder tester that the utility model provides, the scope of application and operation, present embodiment additionally provides the specific constructive form of radio-frequency signal source 1, directional coupler 2, radio frequency reception channel 3, signal processing apparatus 4, central processing unit 5 and human-computer interaction device 6.
The width of the operating frequency of above-mentioned directional coupler 2 is 25-4000MHz, and the frequency range of radio-frequency signal source 1 is 25-4000MHz, and frequency interval is 100kHz.Make tester have wider operating frequency thus, the civilian radio communication covering the overwhelming majority uses frequency range, makes tester have the wider scope of application.
Radio frequency reception channel 3 comprises two-way for radiofrequency signal being converted to the treatment channel of baseband signal, and signal processing apparatus 4 comprises 14 ADC (analog to digital converter) for completing analog and digital signal conversion.
Central processing unit 5 comprises dsp chip (digital signal processor) and ARM chip (central processing unit).And in signal processing, comprise various conventional algorithm, calculating, analysis, processing mode, every test index can be calculated efficiently, in real time, accurately.There is powerful mark, restraining line and curve operations function simultaneously.
Feeder tester, also comprises for each composition structure power module 7 of powering of tester.And make tester have common, power saving and standby three kinds of mode of operations by power management routines, effectively extend the service time of battery.
Feeder tester also comprises the storage device stored for data.For transfer of data, or carry out mutual USB interface with the data in storage device.
As preferably, storage device is the internal memory card of 2Gbyte, can store more than 500 curves with more than 50 cross-sectional image data.Be equipped with USB port, user can directly use external memory to preserve data image, or carries out file interaction with internal memory card.
Above-mentioned human-computer interaction device 6 is for having the touch-screen of input and Presentation Function.As preferably, touch-screen is 7 cun of liquid crystal touch screens, is custom-designed man-machine interface, and beautiful interface is easy to use.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection range by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection range of the present utility model.
Claims (8)
1. a feeder tester, it is characterized in that, comprise radio-frequency signal source (1), directional coupler (2), radio frequency reception channel (3), signal processing apparatus (4), central processing unit (5) and human-computer interaction device (6); Described directional coupler (2) and radio-frequency signal source (1), radio frequency are accepted passage (3) and are connected by holding wire, described radio frequency reception channel (3) is connected by holding wire with signal processing apparatus (4), signal processing apparatus (4) is connected by holding wire with central processing unit (5), described human-computer interaction device (6) is connected by holding wire with central processing unit (5)
The frequency sweep radiofrequency signal produced by radio-frequency signal source (1) is launched by test port, a reflected signal finally can be produced through antenna transmission system, this reflected signal is received by directional coupler (2) and is distinguished and transmits and reflected radio-frequency signal, then become the baseband signal that can identify through radio frequency reception channel (3), this baseband signal finally passes to central processing unit (5) and signal processing apparatus (4).
2. feeder tester according to claim 1, is characterized in that, described radio frequency reception channel (3) comprises two-way for radiofrequency signal being converted to the treatment channel of baseband signal.
3. feeder tester according to claim 1, is characterized in that, described signal processing apparatus (4) comprises 14 ADC for completing analog and digital signal conversion.
4. feeder tester according to claim 1, is characterized in that, described central processing unit (5) comprises dsp chip and ARM chip.
5. feeder tester according to claim 1, is characterized in that, also comprises for each composition structure power module (7) of powering of tester.
6. feeder tester according to claim 1, is characterized in that, also comprises the storage device stored for data.
7. feeder tester according to claim 6, is characterized in that, also comprise for transfer of data, or carries out mutual USB interface with the data in storage device.
8. feeder tester according to claim 1, is characterized in that, described human-computer interaction device is the touch-screen with input and Presentation Function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416422.2U CN204103928U (en) | 2014-07-25 | 2014-07-25 | A kind of feeder tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416422.2U CN204103928U (en) | 2014-07-25 | 2014-07-25 | A kind of feeder tester |
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| Publication Number | Publication Date |
|---|---|
| CN204103928U true CN204103928U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420416422.2U Active CN204103928U (en) | 2014-07-25 | 2014-07-25 | A kind of feeder tester |
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| CN (1) | CN204103928U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901753A (en) * | 2015-05-28 | 2015-09-09 | 北京信维科技股份有限公司 | Amplitude ratio and phase difference testing method and device for two homologous radio frequency signals |
| CN112649678A (en) * | 2020-12-24 | 2021-04-13 | 广州山锋测控技术有限公司 | Antenna feeder measuring method and device, antenna feeder measuring device and tester |
| WO2023180659A1 (en) * | 2022-03-25 | 2023-09-28 | Mvg Industries | Integrated and compact smart transmission and reception system |
-
2014
- 2014-07-25 CN CN201420416422.2U patent/CN204103928U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901753A (en) * | 2015-05-28 | 2015-09-09 | 北京信维科技股份有限公司 | Amplitude ratio and phase difference testing method and device for two homologous radio frequency signals |
| CN104901753B (en) * | 2015-05-28 | 2017-06-23 | 北京信维科技股份有限公司 | The amplitude-phase ratio method of testing and device of the homologous radiofrequency signal of two-way |
| CN112649678A (en) * | 2020-12-24 | 2021-04-13 | 广州山锋测控技术有限公司 | Antenna feeder measuring method and device, antenna feeder measuring device and tester |
| WO2023180659A1 (en) * | 2022-03-25 | 2023-09-28 | Mvg Industries | Integrated and compact smart transmission and reception system |
| FR3133966A1 (en) * | 2022-03-25 | 2023-09-29 | Mvg Industries | Integrated and compact intelligent transceiver module |
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