CN209488585U - A kind of radio-frequency module for repeater digital synthesis test macro - Google Patents
A kind of radio-frequency module for repeater digital synthesis test macro Download PDFInfo
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- CN209488585U CN209488585U CN201920327276.9U CN201920327276U CN209488585U CN 209488585 U CN209488585 U CN 209488585U CN 201920327276 U CN201920327276 U CN 201920327276U CN 209488585 U CN209488585 U CN 209488585U
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Abstract
The utility model embodiment discloses a kind of radio-frequency module for repeater digital synthesis test macro, it include: one or more in radio frequency output channel, radio-frequency receiving-transmitting access, light emitting access or light-receiving access, it further include multiple internal interfaces and multiple external interfaces, radio-frequency module carries out signal transmission by internal interface and baseband processing module, the transmitting-receiving that radiofrequency signal is carried out by external interface, belongs to the field of test technology.The radio-frequency module for repeater digital synthesis test macro of the utility model supports the transmitting-receiving of a variety of test pattern test signals, is suitble to the application scenarios such as repeater equipment inspection, fault location.
Description
Technical field
The utility model relates to the field of test technology, in particular to a kind of penetrating for repeater digital synthesis test macro
Frequency module.
Background technique
As high-speed rail route enters maintenance phase one after another, ensureing that the safety of railway operates normally is the most important thing of maintenance, peace
Entirely, efficiently, less investment be maintenance basic demand, therefore, high-speed rail, which is safeguarded, needs to agree with the practical demand of client, develops safety
Effectively again with the maintenance items of cost advantage.
900M optical fiber repeater is the important component of high-speed rail communication equipment, be responsible for along GSM-R signal in tunnel
The important task of covering.Whether direct discharging station work is normal, and whether parameters are up to standard, and can be directly related to entire high-speed railways
Safety operates normally.Therefore, the detection in Daily Round Check to relevant device in existing line, and correlation is set in maintenance
Standby troubleshooting and positioning, just becomes more urgent engineering demand.
In the prior art, the function instrument tested signals such as light, radio frequency, mobile networks is all individual, and
Volume is big, not readily portable.Since repeater remote termination and its optical fiber, leakage cable almost all are located in tunnel, several kilometers or even
More than ten kilometers of tunnel many times needs engineers and technicians' walking to reach, and therefore, existing test equipment is to engineering technology
The maintenance work of personnel causes great burden.
The premise of multiple functions instrument integration one is the integrated of radio-frequency module, which is able to carry out multi-signal
Transmitting-receiving therefore how to provide a kind of radio-frequency module for repeater digital synthesis test macro, be at present it is urgently to be resolved
Problem.
Utility model content
The utility model embodiment provides a kind of radio-frequency module for repeater digital synthesis test macro, Neng Goushou
Send out the detection signal of the plurality of devices of repeater line related.In order to some aspects of the embodiment to disclosure have one it is basic
Understand, simple summary is shown below.The summarized section is not extensive overview, nor to determine key/critical composition member
Element or the protection scope for describing these embodiments.Its sole purpose is that some concepts are presented with simple form, in this, as rear
The preamble of the detailed description in face.
According to the utility model embodiment in a first aspect, providing a kind of for repeater digital synthesis test macro
Radio-frequency module.
In some optional embodiments, a kind of radio-frequency module for repeater digital synthesis test macro, comprising: radio frequency
One or more in output channel, radio-frequency receiving-transmitting access, light emitting access or light-receiving access, further includes multiple inside
Interface and multiple external interfaces, radio-frequency module carry out signal transmission by internal interface and baseband processing module, are connect by outside
Mouth carries out the transmitting-receiving of radiofrequency signal.
Optionally, the radio frequency output channel includes adjustable attenuator, RF switch, anti-circnit NOT, and radiofrequency signal is by interior
After the input of portion's interface, by radio frequency output channel interface Transmission after adjustable attenuator, RF switch, anti-circnit NOT.
Optionally, the radio-frequency receiving-transmitting access includes directional coupler, RF switch, adjustable attenuator, radiofrequency signal by
After the input of radio-frequency receiving-transmitting access interface, after oriented coupler, RF switch, adjustable attenuator processing, exported by internal interface.
Optionally, the light emitting access includes adjustable attenuator, RF switch, electrooptical device and light path switch,
Optical signals internal interface input, after the processing of adjustable attenuator, RF switch, electrooptical device and light path switch, by light
Transmitting path interface Transmission.
Optionally, the light-receiving access includes photodiode, RF switch, adjustable attenuator, and light-receiving access connects
Mouth receives external fiber-optic signal, demodulates to obtain radiofrequency signal through photodiode, at RF switch, adjustable attenuator
Baseband processing module is output to by internal interface after reason.
Using above-mentioned alternative embodiment, the radio-frequency module for repeater digital synthesis test macro supports a variety of test moulds
Formula tests the transmitting-receiving of signal, therefore the utility model is suitble to the application scenarios such as repeater equipment inspection, fault location.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The utility model can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets the utility model
Embodiment, and be used to explain the principles of the present invention together with specification.
Fig. 1 is an a kind of optional implementation structural representation of radio-frequency module for repeater digital synthesis test macro
Figure.
Specific embodiment
The following description and drawings fully show the specific embodiment of the utility model, so that those skilled in the art
Them can be practiced.Other embodiments may include structure, logic, it is electrical, process and other change.It is real
It applies example and only represents possible variation.Unless explicitly requested, otherwise individual components and functionality is sequence that is optional, and operating
It can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.
The range of the embodiments of the present invention includes that the entire scope of claims and all of claims can get
Equivalent.Herein, each embodiment can individually or generally be indicated that this is only with term " utility model "
For convenience, it and if in fact disclosing the utility model more than one, is not meant to automatically limit the range of the application
Conceive for any single utility model or utility model.Herein, relational terms such as first and second and the like are only used
In distinguishing one entity or operation from another entity or operation, without requiring or implying these entities or operation
Between there are any actual relationship or sequences.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that process, method or equipment including a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method or equipment of element.Each embodiment herein is retouched in a progressive manner
It states, each embodiment focuses on the differences from other embodiments, the same or similar parts in each embodiment
It may refer to each other.For method, product disclosed in the embodiment etc., since it is opposite with method part disclosed in embodiment
It answers, so being described relatively simple, reference may be made to the description of the method.
Fig. 1 shows an alternative embodiment of the radio-frequency module for repeater digital synthesis test macro.
Radio-frequency module includes radio frequency output channel, radio-frequency receiving-transmitting access, light emitting access or light-receiving access, radio frequency mould
Block includes multiple internal interfaces and multiple external interfaces, and radio-frequency module carries out signal biography by internal interface and baseband processing module
It is defeated, the transmitting-receiving of radiofrequency signal is carried out by external interface.
Wherein, for radio frequency output channel, radiofrequency signal is inputted by the first internal interface RF1, after radio frequency output channel,
Emitted by radio frequency output channel interface RF3.Optionally, radio frequency output channel includes adjustable attenuator T1, RF switch K1, counnter attack
Circuit G1, after radiofrequency signal is inputted by the first internal interface RF1, after adjustable attenuator T1, RF switch K1, anti-circnit NOT G1
Emitted by RF3 mouthfuls.
Optionally, it is physical interface that the first internal interface RF1, which selects MCX printed board female, with baseband processing module radio frequency
Delivery outlet docking.Optionally, the input of the first internal interface RF1 maximum is 6dBm.
Above-mentioned radio frequency output channel interface RF3 is external interface, and optionally, radio frequency output channel interface RF3 selects N-type to connect
Connecing device is physical interface.Optionally, radio frequency output channel interface RF3 maximum output is 0dBm.
Optionally, adjustable attenuator T1 is the adjustable attenuator of 31.5dB range, 0.5dB stepping.
Optionally, RF switch K1 is the RF switch that hilted broadsword 4 is set.
Optionally, anti-circnit NOT G1 is the anti-circnit NOT based on TVS pipe.
Optionally, the entire link impedance of radio frequency output channel is 50 Ω, and path gain is -6dB, and 800~1000MHz is flat
Degree is less than 0.5dB, and prevention at radio-frequency port standing wave is required less than 1.2.
For radio-frequency receiving-transmitting access, radiofrequency signal is inputted by radio-frequency receiving-transmitting access interface RF4, after radio-frequency receiving-transmitting access,
It is exported by the second internal interface RF2.Optionally, radio-frequency receiving-transmitting access includes directional coupler P1, RF switch K2, adjustable damping
Device T2, after radiofrequency signal is inputted by radio-frequency receiving-transmitting access interface RF4, oriented coupler P1, RF switch K2, adjustable attenuator
After T2, exported by the second internal interface RF2.
Optionally, it is physical interface that the second internal interface RF2, which selects MCX printed board female, with baseband processing module radio frequency
Input port docking.Optionally, the second internal interface RF2 maximum output is 0dBm.
Above-mentioned radio-frequency receiving-transmitting access interface RF4 is external interface, and optionally, radio-frequency receiving-transmitting access interface RF4 selects N-type to connect
Connecing device is physical interface.Optionally, the input of radio-frequency receiving-transmitting access interface RF4 maximum is 30dBm.
Optionally, directional coupler P1 is 10dB, bears the directional coupler that power is more than or equal to 2W.
Optionally, RF switch K2 is the double RF switches set of hilted broadsword.
Optionally, adjustable attenuator T2 is 31.5dB range, 0.5dB stepping, maximum bears the adjustable damping that power is 2W
Device.
Optionally, the entire link impedance of radio-frequency receiving-transmitting access is 50 Ω, and path gain is -6dB, and 800~1000MHz is flat
Degree is less than 0.5dB, 100~2500MHz flatness is less than 5dB, and prevention at radio-frequency port standing wave is required less than 1.2.
For light emitting access, optical signals the first internal interface RF1 input after light emitting access, is led to by light emitting
Road interface F01 transmitting.Optionally, light emitting access includes adjustable attenuator T1, RF switch K1, electrooptical device and optical path
Switch D3.In embodiment illustrated in fig. 1, the quantity of electrooptical device is 2, and the first electrooptical device D1 is that wavelength is
The laser device of 1310nm, the second electrooptical device D2 are the laser device that wavelength is 1550, the first electrooptical device D1
It is connected with one end of the second electrooptical device D2 with RF switch K1, by RF switch K1 in the first electrooptical device
It is selected between D1 and the second electrooptical device D2, the first electrooptical device D1 and the second electrooptical device D2's is another
One end is connected with light path switch D3, and the output end of light path switch D3 connects light emitting access interface F01, and light emitting access passes through
RF switch K1 and light path switch D3 selects the first electrooptical device D1 or the second electrooptical device D2.
Optionally, the frequency of use of the first electrooptical device D1 and the second electrooptical device D2 be 800~
1000MHz。
Above-mentioned light emitting access interface F01 is external interface, and optionally, light emitting access interface F01 selection can directly consolidate
It is scheduled on the FC light butt joint of hardware.
Optionally, the output power of light emitting access interface FO1 is 0~5dBm, and the optical power of output is read by CPU U1
It takes.
For light-receiving access, light-receiving access interface F02 receives external fiber-optic signal, through PIN photodiode D4
Demodulation obtains radiofrequency signal, is output to base by the second internal interface RF2 after handling using RF switch K2, adjustable attenuator T2
Tape handling module.Meanwhile the radiofrequency signal demodulated through PIN photodiode D4 carries out data by CPU after amplification
Reason, obtains optical power intensity and optical wavelength.
The optical power of+6~-18dBm, testing accuracy ± 1dB can be detected in above-mentioned light-receiving access.
Above-mentioned light emitting access interface FO2 is external interface, and optionally, light emitting access interface FO2 selection can directly consolidate
It is scheduled on the FC light butt joint of hardware.
The radio-frequency module for repeater digital synthesis test macro of the utility model supports a variety of test patterns to test
The transmitting-receiving of signal is suitble to the application scenarios such as repeater equipment inspection, fault location.
In alternative embodiment described herein, it should be understood that disclosed method, product (including but not limited to fill
Set, equipment etc.), it may be implemented in other ways.For example, the apparatus embodiments described above are merely exemplary,
For example, the division of the unit, only a kind of logical function partition, there may be another division manner in actual implementation, example
As multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.
Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, dress
It sets or the indirect coupling or communication connection of unit, can be electrical property, mechanical or other forms.It is described to be used as separate part description
Unit may or may not be physically separated, component shown as a unit may or may not be
Physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to the actual needs
Some or all of the units may be selected to achieve the purpose of the solution of this embodiment.In addition, in each implementation of the utility model
Each functional unit in example can integrate in one processing unit, is also possible to each unit and physically exists alone, can also be with
Two or more units are integrated in one unit.
It should be understood that the utility model is not limited to the process and knot for being described above and being shown in the accompanying drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right
It asks to limit.
Claims (5)
1. a kind of radio-frequency module for repeater digital synthesis test macro characterized by comprising
One or more in radio frequency output channel, radio-frequency receiving-transmitting access, light emitting access or light-receiving access further include
Multiple internal interfaces and multiple external interfaces, radio-frequency module carry out signal transmission by internal interface and baseband processing module, lead to
Cross the transmitting-receiving that external interface carries out radiofrequency signal.
2. a kind of radio-frequency module for repeater digital synthesis test macro as described in claim 1, which is characterized in that institute
Stating radio frequency output channel includes adjustable attenuator, RF switch, anti-circnit NOT, after radiofrequency signal is inputted by internal interface, through can
By radio frequency output channel interface Transmission after controlled attenuator, RF switch, anti-circnit NOT.
3. a kind of radio-frequency module for repeater digital synthesis test macro as described in claim 1, which is characterized in that institute
Stating radio-frequency receiving-transmitting access includes directional coupler, RF switch, adjustable attenuator, and radiofrequency signal is defeated by radio-frequency receiving-transmitting access interface
After entering, after oriented coupler, RF switch, adjustable attenuator processing, exported by internal interface.
4. a kind of radio-frequency module for repeater digital synthesis test macro as described in claim 1, which is characterized in that institute
Stating light emitting access includes adjustable attenuator, RF switch, electrooptical device and light path switch, and optical signals internal interface is defeated
Enter, after the processing of adjustable attenuator, RF switch, electrooptical device and light path switch, is emitted by light emitting access interface.
5. a kind of radio-frequency module for repeater digital synthesis test macro as described in claim 1, which is characterized in that institute
Stating light-receiving access includes photodiode, RF switch, adjustable attenuator, and light-receiving access interface receives external optical fiber letter
Number, it demodulates to obtain radiofrequency signal through photodiode, be exported using after RF switch, adjustable attenuator processing by internal interface
To baseband processing module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920327276.9U CN209488585U (en) | 2019-03-14 | 2019-03-14 | A kind of radio-frequency module for repeater digital synthesis test macro |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920327276.9U CN209488585U (en) | 2019-03-14 | 2019-03-14 | A kind of radio-frequency module for repeater digital synthesis test macro |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665965A (en) * | 2022-05-09 | 2022-06-24 | 北京国科天迅科技有限公司 | Light conversion device, storage medium and test system |
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2019
- 2019-03-14 CN CN201920327276.9U patent/CN209488585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665965A (en) * | 2022-05-09 | 2022-06-24 | 北京国科天迅科技有限公司 | Light conversion device, storage medium and test system |
| CN114665965B (en) * | 2022-05-09 | 2022-09-20 | 北京国科天迅科技有限公司 | Light conversion device, storage medium and test system |
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